//
// Cmd_cat - This function implements the "cat" command. It reads the contents
// of a file and prints it to the console. This should only be used
// on text files. If it is used on a binary file, then a bunch of
// garbage is likely to printed on the console.
//
int
Cmd_cat(int argc, char *argv[])
{
FRESULT fresult;
unsigned short usBytesRead;
//
// First, check to make sure that the current path (CWD), plus
// the file name, plus a separator and trailing null, will all
// fit in the temporary buffer that will be used to hold the
// file name. The file name must be fully specified, with path,
// to FatFs.
//
if(strlen(g_cCwdBuf) + strlen(argv[1]) + 1 + 1 > sizeof(g_cTmpBuf))
{
UARTprintf("Resulting path name is too long\n");
return(0);
}
//
// Copy the current path to the temporary buffer so it can be manipulated.
//
strcpy(g_cTmpBuf, g_cCwdBuf);
//
// If not already at the root level, then append a separator.
//
if(strcmp("/", g_cCwdBuf))
{
strcat(g_cTmpBuf, "/");
}
//
// Now finally, append the file name to result in a fully specified file.
//
strcat(g_cTmpBuf, argv[1]);
//
// Open the file for reading.
//
fresult = f_open(&g_sFileObject, g_cTmpBuf, FA_READ);
//
// If there was some problem opening the file, then return
// an error.
//
if(fresult != FR_OK)
{
return(fresult);
}
//
// Enter a loop to repeatedly read data from the file and display it,
// until the end of the file is reached.
//
do
{
//
// Read a block of data from the file. Read as much as can fit
// in the temporary buffer, including a space for the trailing null.
//
fresult = f_read(&g_sFileObject, g_cTmpBuf, sizeof(g_cTmpBuf) - 1,
&usBytesRead);
//
// If there was an error reading, then print a newline and
// return the error to the user.
//
if(fresult != FR_OK)
{
UARTprintf("\n");
return(fresult);
}
//
// Null terminate the last block that was read to make it a
// null terminated string that can be used with printf.
//
g_cTmpBuf[usBytesRead] = 0;
//
// Print the last chunk of the file that was received.
//
UARTprintf("%s", g_cTmpBuf);
//
// Continue reading until less than the full number of bytes are
// read. That means the end of the buffer was reached.
//
}
while(usBytesRead == sizeof(g_cTmpBuf) - 1);
//
// Return success.
//
return(0);
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
//
// Turn on stacking of FPU registers if FPU is used in the ISR.
//
FPULazyStackingEnable();
//
// Set the clocking to run from the PLL at 40MHz.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Set the system tick to fire 100 times per second.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// Enable the Debug UART.
//
ConfigureUART();
//
// Print the welcome message to the terminal.
//
UARTprintf("\033[2JAir Mouse Application\n");
//
// Configure desired interrupt priorities. This makes certain that the DCM
// is fed data at a consistent rate. Lower numbers equal higher priority.
//
ROM_IntPrioritySet(INT_I2C3, 0x00);
ROM_IntPrioritySet(INT_GPIOB, 0x10);
ROM_IntPrioritySet(FAULT_SYSTICK, 0x20);
ROM_IntPrioritySet(INT_UART1, 0x60);
ROM_IntPrioritySet(INT_UART0, 0x70);
ROM_IntPrioritySet(INT_WTIMER5B, 0x80);
//
// Configure the USB D+ and D- pins.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
ROM_GPIOPinTypeUSBAnalog(GPIO_PORTD_BASE, GPIO_PIN_5 | GPIO_PIN_4);
//
// Pass the USB library our device information, initialize the USB
// controller and connect the device to the bus.
//
USBDHIDMouseCompositeInit(0, &g_sMouseDevice, &g_psCompDevices[0]);
USBDHIDKeyboardCompositeInit(0, &g_sKeyboardDevice, &g_psCompDevices[1]);
//
// Set the USB stack mode to Force Device mode.
//
USBStackModeSet(0, eUSBModeForceDevice, 0);
//
// Pass the device information to the USB library and place the device
// on the bus.
//
USBDCompositeInit(0, &g_sCompDevice, DESCRIPTOR_DATA_SIZE,
g_pui8DescriptorData);
//
// User Interface Init
//
ButtonsInit();
RGBInit(0);
RGBEnable();
//
// Initialize the motion sub system.
//
MotionInit();
//
// Initialize the Radio Systems.
//
LPRFInit();
//
// Drop into the main loop.
//
while(1)
{
//
// Check for and handle timer tick events.
//
if(HWREGBITW(&g_ui32Events, USB_TICK_EVENT) == 1)
{
//
// Clear the Tick event flag. Set in SysTick interrupt handler.
//
HWREGBITW(&g_ui32Events, USB_TICK_EVENT) = 0;
//
// Each tick period handle wired mouse and keyboard.
//
if(HWREGBITW(&g_ui32USBFlags, FLAG_CONNECTED) == 1)
{
MouseMoveHandler();
KeyboardMain();
}
}
//
// Check for LPRF tick events. LPRF Ticks are slower since UART to
// RNP is much slower data connection than the USB.
//
if(HWREGBITW(&g_ui32Events, LPRF_TICK_EVENT) == 1)
{
//
// Clear the event flag.
//
HWREGBITW(&g_ui32Events, LPRF_TICK_EVENT) = 0;
//
// Perform the LPRF Main task handling
//
LPRFMain();
}
//
// Check for and handle motion events.
//
if((HWREGBITW(&g_ui32Events, MOTION_EVENT) == 1) ||
(HWREGBITW(&g_ui32Events, MOTION_ERROR_EVENT) == 1))
{
//
// Clear the motion event flag. Set in the Motion I2C interrupt
// handler when an I2C transaction to get sensor data is complete.
//
HWREGBITW(&g_ui32Events, MOTION_EVENT) = 0;
//
// Process the motion data that has been captured
//
MotionMain();
}
}
}
int sensor(void)
{
ui32CompDCMStarted = 0;
// Go to sleep mode while waiting for data ready.
//
while(!g_vui8I2CDoneFlag)
{
ROM_SysCtlSleep();
}
//
// Clear the flag
//
g_vui8I2CDoneFlag = 0;
//
// Get floating point version of the Accel Data in m/s^2.
//
MPU9150DataAccelGetFloat(&g_sMPU9150Inst, pfAccel, pfAccel + 1,
pfAccel + 2);
//
// Get floating point version of angular velocities in rad/sec
//
MPU9150DataGyroGetFloat(&g_sMPU9150Inst, pfGyro, pfGyro + 1,
pfGyro + 2);
//
// Get floating point version of magnetic fields strength in tesla
//
MPU9150DataMagnetoGetFloat(&g_sMPU9150Inst, pfMag, pfMag + 1,
pfMag + 2);
//
// Check if this is our first data ever.
//
if(ui32CompDCMStarted == 0)
{
//
// Set flag indicating that DCM is started.
// Perform the seeding of the DCM with the first data set.
//
ui32CompDCMStarted = 1;
CompDCMMagnetoUpdate(&g_sCompDCMInst, pfMag[0], pfMag[1],
pfMag[2]);
CompDCMAccelUpdate(&g_sCompDCMInst, pfAccel[0], pfAccel[1],
pfAccel[2]);
CompDCMGyroUpdate(&g_sCompDCMInst, pfGyro[0], pfGyro[1],
pfGyro[2]);
CompDCMStart(&g_sCompDCMInst);
}
else
{
//
// DCM Is already started. Perform the incremental update.
//
CompDCMMagnetoUpdate(&g_sCompDCMInst, pfMag[0], pfMag[1],
pfMag[2]);
CompDCMAccelUpdate(&g_sCompDCMInst, pfAccel[0], pfAccel[1],
pfAccel[2]);
CompDCMGyroUpdate(&g_sCompDCMInst, -pfGyro[0], -pfGyro[1],
-pfGyro[2]);
CompDCMUpdate(&g_sCompDCMInst);
}
//
// Increment the skip counter. Skip counter is used so we do not
// overflow the UART with data.
//
g_ui32PrintSkipCounter++;
if(g_ui32PrintSkipCounter >= PRINT_SKIP_COUNT)
{
//
// Reset skip counter.
//
g_ui32PrintSkipCounter = 0;
//
// Get Euler data. (Roll Pitch Yaw)
//
CompDCMComputeEulers(&g_sCompDCMInst, pfEulers, pfEulers + 1,
pfEulers + 2);
//
// Get Quaternions.
//
CompDCMComputeQuaternion(&g_sCompDCMInst, pfQuaternion);
//
// convert mag data to micro-tesla for better human interpretation.
//
pfMag[0] *= 1e6;
pfMag[1] *= 1e6;
pfMag[2] *= 1e6;
//
// Convert Eulers to degrees. 180/PI = 57.29...
// Convert Yaw to 0 to 360 to approximate compass headings.
//
pfEulers[0] *= 57.295779513082320876798154814105f;
pfEulers[1] *= 57.295779513082320876798154814105f;
pfEulers[2] *= 57.295779513082320876798154814105f;
if(pfEulers[2] < 0)
{
pfEulers[2] += 360.0f;
}
//
// Now drop back to using the data as a single array for the
// purpose of decomposing the float into a integer part and a
// fraction (decimal) part.
//
for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
{
//
// Conver float value to a integer truncating the decimal part.
//
i32IPart[ui32Idx] = (int32_t) pfData[ui32Idx];
//
// Multiply by 1000 to preserve first three decimal values.
// Truncates at the 3rd decimal place.
//
i32FPart[ui32Idx] = (int32_t) (pfData[ui32Idx] * 1000.0f);
//
// Subtract off the integer part from this newly formed decimal
// part.
//
i32FPart[ui32Idx] = i32FPart[ui32Idx] -
(i32IPart[ui32Idx] * 1000);
//
// make the decimal part a positive number for display.
//
if(i32FPart[ui32Idx] < 0)
{
i32FPart[ui32Idx] *= -1;
}
}
//
// Print the acceleration numbers in the table.
//
UARTprintf("\033[5;17H%3d.%03d", i32IPart[0], i32FPart[0]);
UARTprintf("\033[5;40H%3d.%03d", i32IPart[1], i32FPart[1]);
UARTprintf("\033[5;63H%3d.%03d", i32IPart[2], i32FPart[2]);
//
// Print the angular velocities in the table.
//
UARTprintf("\033[7;17H%3d.%03d", i32IPart[3], i32FPart[3]);
UARTprintf("\033[7;40H%3d.%03d", i32IPart[4], i32FPart[4]);
UARTprintf("\033[7;63H%3d.%03d", i32IPart[5], i32FPart[5]);
//
// Print the magnetic data in the table.
//
UARTprintf("\033[9;17H%3d.%03d", i32IPart[6], i32FPart[6]);
UARTprintf("\033[9;40H%3d.%03d", i32IPart[7], i32FPart[7]);
UARTprintf("\033[9;63H%3d.%03d", i32IPart[8], i32FPart[8]);
//
// Print the Eulers in a table.
//
UARTprintf("\033[14;17H%3d.%03d", i32IPart[9], i32FPart[9]);
UARTprintf("\033[14;40H%3d.%03d", i32IPart[10], i32FPart[10]);
UARTprintf("\033[14;63H%3d.%03d", i32IPart[11], i32FPart[11]);
//
// Print the quaternions in a table format.
//
UARTprintf("\033[19;14H%3d.%03d", i32IPart[12], i32FPart[12]);
UARTprintf("\033[19;32H%3d.%03d", i32IPart[13], i32FPart[13]);
UARTprintf("\033[19;50H%3d.%03d", i32IPart[14], i32FPart[14]);
UARTprintf("\033[19;68H%3d.%03d", i32IPart[15], i32FPart[15]);
// currentSpeed=i32IPart[9]; how to get velocity from speed
}
return pitch= i32IPart[9];
}
//*****************************************************************************
//
// This is the main example program. It checks to see that the interrupts are
// processed in the correct order when they have identical priorities,
// increasing priorities, and decreasing priorities. This exercises interrupt
// preemption and tail chaining.
//
//*****************************************************************************
int
main(void)
{
uint32_t ui32Error;
//
// Enable lazy stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
ROM_FPULazyStackingEnable();
//
// Set the clocking to run directly from the crystal.
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Enable the peripherals used by this example.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
//
// Initialize the UART.
//
ConfigureUART();
UARTprintf("\033[2JInterrupts\n");
//
// Configure the PB0-PB2 to be outputs to indicate entry/exit of one
// of the interrupt handlers.
//
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, GPIO_PIN_1 | GPIO_PIN_2 |
GPIO_PIN_3);
ROM_GPIOPinWrite(GPIO_PORTE_BASE, GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3, 0);
//
// Set up and enable the SysTick timer. It will be used as a reference
// for delay loops in the interrupt handlers. The SysTick timer period
// will be set up for one second.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet());
ROM_SysTickEnable();
//
// Reset the error indicator.
//
ui32Error = 0;
//
// Enable interrupts to the processor.
//
ROM_IntMasterEnable();
//
// Enable the interrupts.
//
ROM_IntEnable(INT_GPIOA);
ROM_IntEnable(INT_GPIOB);
ROM_IntEnable(INT_GPIOC);
//
// Indicate that the equal interrupt priority test is beginning.
//
UARTprintf("\nEqual Priority\n");
//
// Set the interrupt priorities so they are all equal.
//
ROM_IntPrioritySet(INT_GPIOA, 0x00);
ROM_IntPrioritySet(INT_GPIOB, 0x00);
ROM_IntPrioritySet(INT_GPIOC, 0x00);
//
// Reset the interrupt flags.
//
g_ui32GPIOa = 0;
g_ui32GPIOb = 0;
g_ui32GPIOc = 0;
g_ui32Index = 1;
//
// Trigger the interrupt for GPIO C.
//
HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;
//
// Put the current interrupt state on the LCD.
//
DisplayIntStatus();
//
// Verify that the interrupts were processed in the correct order.
//
if((g_ui32GPIOa != 3) || (g_ui32GPIOb != 2) || (g_ui32GPIOc != 1))
{
ui32Error |= 1;
}
//
// Wait two seconds.
//
Delay(2);
//
// Indicate that the decreasing interrupt priority test is beginning.
//
UARTprintf("\nDecreasing Priority\n");
//
// Set the interrupt priorities so that they are decreasing (i.e. C > B >
// A).
//
ROM_IntPrioritySet(INT_GPIOA, 0x80);
ROM_IntPrioritySet(INT_GPIOB, 0x40);
ROM_IntPrioritySet(INT_GPIOC, 0x00);
//
// Reset the interrupt flags.
//
g_ui32GPIOa = 0;
g_ui32GPIOb = 0;
g_ui32GPIOc = 0;
g_ui32Index = 1;
//
// Trigger the interrupt for GPIO C.
//
HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;
//
// Put the current interrupt state on the UART.
//
DisplayIntStatus();
//
// Verify that the interrupts were processed in the correct order.
//
if((g_ui32GPIOa != 3) || (g_ui32GPIOb != 2) || (g_ui32GPIOc != 1))
{
ui32Error |= 2;
}
//
// Wait two seconds.
//
Delay(2);
//
// Indicate that the increasing interrupt priority test is beginning.
//
UARTprintf("\nIncreasing Priority\n");
//
// Set the interrupt priorities so that they are increasing (i.e. C < B <
// A).
//
ROM_IntPrioritySet(INT_GPIOA, 0x00);
ROM_IntPrioritySet(INT_GPIOB, 0x40);
ROM_IntPrioritySet(INT_GPIOC, 0x80);
//
// Reset the interrupt flags.
//
g_ui32GPIOa = 0;
g_ui32GPIOb = 0;
g_ui32GPIOc = 0;
g_ui32Index = 1;
//
// Trigger the interrupt for GPIO C.
//
HWREG(NVIC_SW_TRIG) = INT_GPIOC - 16;
//
// Put the current interrupt state on the UART.
//
DisplayIntStatus();
//
// Verify that the interrupts were processed in the correct order.
//
if((g_ui32GPIOa != 1) || (g_ui32GPIOb != 2) || (g_ui32GPIOc != 3))
{
ui32Error |= 4;
}
//
// Wait two seconds.
//
Delay(2);
//
// Disable the interrupts.
//
ROM_IntDisable(INT_GPIOA);
ROM_IntDisable(INT_GPIOB);
ROM_IntDisable(INT_GPIOC);
//
// Disable interrupts to the processor.
//
ROM_IntMasterDisable();
//
// Print out the test results.
//
UARTprintf("\nInterrupt Priority =: %s >: %s <: %s\n",
(ui32Error & 1) ? "Fail" : "Pass",
(ui32Error & 2) ? "Fail" : "Pass",
(ui32Error & 4) ? "Fail" : "Pass");
//
// Loop forever.
//
while(1)
{
}
}
//*****************************************************************************
// This example demonstrates MIDI functionality and control methods
//*****************************************************************************
int main(void){
// Set the clocking to run directly from the crystal.
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
// Enable the peripherals used by this VS1053.
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1); // VS1053 Serial
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB); // VS1053 Serial
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE); // VS1053 Reset + EMG Input
SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0); // EMG Input 1
// Enable PC Console
InitSerial();
// Enable processor interrupts.
IntMasterEnable();
// Set GPIO B0 and B1 as UART pins for VS1053 Control
GPIOPinConfigure(GPIO_PB0_U1RX);
GPIOPinConfigure(GPIO_PB1_U1TX);
GPIOPinTypeUART(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1);
// Set GPIO E4 as Hardware Reset pin and E5 as ADC Input
GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, GPIO_PIN_4);
GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_5);
// Configure the UART1 as according to VS1053 Datasheet with baudrate of 31250
UARTConfigSetExpClk(UART1_BASE, ROM_SysCtlClockGet(), 31250, (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE | UART_CONFIG_PAR_NONE));
// Setup ADC Sampling Sequences 3, configure step 0.
// Note: Sequence 1 and 2 has 4 step, which would be great for 3-channel sampling
ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);
ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH8 | ADC_CTL_IE | ADC_CTL_END);
ADCSequenceEnable(ADC0_BASE, 3);
ADCIntClear(ADC0_BASE, 3);
// Example Started
UARTprintf("VS1053 Test\n");
// Reset the VS1053
VS1053_Reset();
// Setup the MIDI Channel 0
midiSetChannelBank(0, VS1053_BANK_MELODY);
midiSetInstrument(0, VS1053_GM1_OCARINA);
midiSetChannelVolume(0, 127);
midiNoteOn(0, 70, 127);
Delay(1000);
// Setup the MIDI Channel 1
midiSetChannelBank(1, VS1053_BANK_MELODY);
midiSetInstrument(1, VS1053_GM1_OCARINA);
midiSetChannelVolume(1, 0);
midiNoteOn(1, 60, 127);
// Setup variables for ADC
uint32_t ADC_Output[1];
uint8_t volume;
// Infinite Loop of execution
while(1)
{
// ADC Sampling Procedures
ADCProcessorTrigger(ADC0_BASE, 3);
while(!ADCIntStatus(ADC0_BASE, 3, false)) {}
ADCIntClear(ADC0_BASE, 3);
ADCSequenceDataGet(ADC0_BASE, 3, ADC_Output);
UARTprintf("AIN8 = %4d\n", ADC_Output[0]);
// Play Sound as according to voltage level
volume = inputMapping(ADC_Output[0], 3000, 4000, 50, 127);
midiSetChannelVolume(0, volume);
UARTprintf("Volume Level = %4d\n", volume);
// Delay
Delay(100);
}
}
//*****************************************************************************
//
// This is the generic callback from host stack.
//
// pvData is actually a pointer to a tEventInfo structure.
//
// This function will be called to inform the application when a USB event has
// occurred that is outside those related to the keyboard device. At this
// point this is used to detect unsupported devices being inserted and removed.
// It is also used to inform the application when a power fault has occurred.
// This function is required when the g_USBGenericEventDriver is included in
// the host controller driver array that is passed in to the
// USBHCDRegisterDrivers() function.
//
//*****************************************************************************
void
USBHCDEvents(void *pvData)
{
tEventInfo *pEventInfo;
//
// Cast this pointer to its actual type.
//
pEventInfo = (tEventInfo *)pvData;
switch(pEventInfo->ulEvent)
{
//
// New keyboard detected.
//
case USB_EVENT_CONNECTED:
{
//
// See if this is a HID Keyboard.
//
if((USBHCDDevClass(pEventInfo->ulInstance, 0) == USB_CLASS_HID) &&
(USBHCDDevProtocol(pEventInfo->ulInstance, 0) ==
USB_HID_PROTOCOL_KEYB))
{
//
// Indicate that the keyboard has been detected.
//
UARTprintf("Keyboard Connected\n");
//
// Proceed to the STATE_KEYBOARD_INIT state so that the main
// loop can finish initialized the mouse since
// USBHKeyboardInit() cannot be called from within a callback.
//
g_eUSBState = STATE_KEYBOARD_INIT;
}
break;
}
//
// Unsupported device detected.
//
case USB_EVENT_UNKNOWN_CONNECTED:
{
UARTprintf("Unsupported Device Connected\n");
//
// An unsupported device was detected.
//
g_eUSBState = STATE_UNKNOWN_DEVICE;
UpdateStatus();
break;
}
//
// Device has been unplugged.
//
case USB_EVENT_DISCONNECTED:
{
//
// Indicate that the device has been disconnected.
//
UARTprintf("Device Disconnected\n");
//
// Change the state so that the main loop knows that the device
// is no longer present.
//
g_eUSBState = STATE_NO_DEVICE;
//
// Update the screen.
//
UpdateStatus();
break;
}
//
// Power Fault has occurred.
//
case USB_EVENT_POWER_FAULT:
{
UARTprintf("Power Fault\n");
//
// No power means no device is present.
//
g_eUSBState = STATE_POWER_FAULT;
UpdateStatus();
break;
}
default:
{
break;
}
}
}
//*****************************************************************************
//
// Main 'C' Language entry point.
//
//*****************************************************************************
int
main(void)
{
float fTemperature, fPressure, fAltitude;
int32_t i32IntegerPart;
int32_t i32FractionPart;
//
// Setup the system clock to run at 40 MHz from PLL with crystal reference
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_5 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
SYSCTL_OSC_MAIN);
//
// Initialize the UART.
//
ConfigureUART();
//
// Print the welcome message to the terminal.
//
UARTprintf("\033[2JBMP180 Example\n");
//
// Set the color to a white approximation.
//
g_pui32Colors[RED] = 0x8000;
g_pui32Colors[BLUE] = 0x8000;
g_pui32Colors[GREEN] = 0x8000;
//
// Initialize RGB driver. Use a default intensity and blink rate.
//
RGBInit(0);
RGBColorSet(g_pui32Colors);
RGBIntensitySet(0.5f);
RGBEnable();
//
// The I2C3 peripheral must be enabled before use.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C3);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
//
// Configure the pin muxing for I2C3 functions on port D0 and D1.
// This step is not necessary if your part does not support pin muxing.
//
ROM_GPIOPinConfigure(GPIO_PD0_I2C3SCL);
ROM_GPIOPinConfigure(GPIO_PD1_I2C3SDA);
//
// Select the I2C function for these pins. This function will also
// configure the GPIO pins pins for I2C operation, setting them to
// open-drain operation with weak pull-ups. Consult the data sheet
// to see which functions are allocated per pin.
//
GPIOPinTypeI2CSCL(GPIO_PORTD_BASE, GPIO_PIN_0);
ROM_GPIOPinTypeI2C(GPIO_PORTD_BASE, GPIO_PIN_1);
//
// Initialize the GPIO for the LED.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1);
ROM_GPIOPinWrite(GPIO_PORTF_BASE, GPIO_PIN_1, 0x00);
//
// Enable interrupts to the processor.
//
ROM_IntMasterEnable();
//
// Initialize the I2C3 peripheral.
//
I2CMInit(&g_sI2CInst, I2C3_BASE, INT_I2C3, 0xff, 0xff,
ROM_SysCtlClockGet());
//
// Initialize the BMP180.
//
BMP180Init(&g_sBMP180Inst, &g_sI2CInst, BMP180_I2C_ADDRESS,
BMP180AppCallback, &g_sBMP180Inst);
//
// Wait for initialization callback to indicate reset request is complete.
//
while(g_vui8DataFlag == 0)
{
//
// Wait for I2C Transactions to complete.
//
}
//
// Reset the data ready flag
//
g_vui8DataFlag = 0;
//
// Enable the system ticks at 10 Hz.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / (10 * 3));
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// After all the init and config we start blink the LED
//
RGBBlinkRateSet(1.0f);
//
// Begin the data collection and printing. Loop Forever.
//
while(1)
{
//
// Read the data from the BMP180 over I2C. This command starts a
// temperature measurement. Then polls until temperature is ready.
// Then automatically starts a pressure measurement and polls for that
// to complete. When both measurement are complete and in the local
// buffer then the application callback is called from the I2C
// interrupt context. Polling is done on I2C interrupts allowing
// processor to continue doing other tasks as needed.
//
BMP180DataRead(&g_sBMP180Inst, BMP180AppCallback, &g_sBMP180Inst);
while(g_vui8DataFlag == 0)
{
//
// Wait for the new data set to be available.
//
}
//
// Reset the data ready flag.
//
g_vui8DataFlag = 0;
//
// Get a local copy of the latest temperature data in float format.
//
BMP180DataTemperatureGetFloat(&g_sBMP180Inst, &fTemperature);
//
// Convert the floats to an integer part and fraction part for easy
// print.
//
i32IntegerPart = (int32_t) fTemperature;
i32FractionPart =(int32_t) (fTemperature * 1000.0f);
i32FractionPart = i32FractionPart - (i32IntegerPart * 1000);
if(i32FractionPart < 0)
{
i32FractionPart *= -1;
}
//
// Print temperature with three digits of decimal precision.
//
UARTprintf("Temperature %3d.%03d\t\t", i32IntegerPart, i32FractionPart);
//
// Get a local copy of the latest air pressure data in float format.
//
BMP180DataPressureGetFloat(&g_sBMP180Inst, &fPressure);
//
// Convert the floats to an integer part and fraction part for easy
// print.
//
i32IntegerPart = (int32_t) fPressure;
i32FractionPart =(int32_t) (fPressure * 1000.0f);
i32FractionPart = i32FractionPart - (i32IntegerPart * 1000);
if(i32FractionPart < 0)
{
i32FractionPart *= -1;
}
//
// Print Pressure with three digits of decimal precision.
//
UARTprintf("Pressure %3d.%03d\t\t", i32IntegerPart, i32FractionPart);
//
// Calculate the altitude.
//
fAltitude = 44330.0f * (1.0f - powf(fPressure / 101325.0f,
1.0f / 5.255f));
//
// Convert the floats to an integer part and fraction part for easy
// print.
//
i32IntegerPart = (int32_t) fAltitude;
i32FractionPart =(int32_t) (fAltitude * 1000.0f);
i32FractionPart = i32FractionPart - (i32IntegerPart * 1000);
if(i32FractionPart < 0)
{
i32FractionPart *= -1;
}
//
// Print altitude with three digits of decimal precision.
//
UARTprintf("Altitude %3d.%03d", i32IntegerPart, i32FractionPart);
//
// Print new line.
//
UARTprintf("\n");
//
// Delay to keep printing speed reasonable. About 100 milliseconds.
//
ROM_SysCtlDelay(ROM_SysCtlClockGet() / (10 * 3));
}//while end
}
//*****************************************************************************
//
// Initialize the DES and CCM modules.
//
//*****************************************************************************
bool
DESInit(void)
{
uint32_t ui32Loop;
//
// Check that the CCM peripheral is present.
//
if(!ROM_SysCtlPeripheralPresent(SYSCTL_PERIPH_CCM0))
{
UARTprintf("No CCM peripheral found!\n");
//
// Return failure.
//
return(false);
}
//
// The hardware is available, enable it.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_CCM0);
//
// Wait for the peripheral to be ready.
//
ui32Loop = 0;
while(!ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0))
{
//
// Increment our poll counter.
//
ui32Loop++;
if(ui32Loop > CCM_LOOP_TIMEOUT)
{
//
// Timed out, notify and spin.
//
UARTprintf("Time out on CCM ready after enable.\n");
//
// Return failure.
//
return(false);
}
}
//
// Reset the peripheral to ensure we are starting from a known condition.
//
ROM_SysCtlPeripheralReset(SYSCTL_PERIPH_CCM0);
//
// Wait for the peripheral to be ready again.
//
ui32Loop = 0;
while(!ROM_SysCtlPeripheralReady(SYSCTL_PERIPH_CCM0))
{
//
// Increment our poll counter.
//
ui32Loop++;
if(ui32Loop > CCM_LOOP_TIMEOUT)
{
//
// Timed out, spin.
//
UARTprintf("Time out on CCM ready after reset.\n");
//
// Return failure.
//
return(false);
}
}
//
// Return initialization success.
//
return(true);
}
//*****************************************************************************
//
// This example encrypts blocks of plaintext using TDES in CBC mode. It
// does the encryption first without uDMA and then with uDMA. The results
// are checked after each operation.
//
//*****************************************************************************
int
main(void)
{
uint32_t pui32CipherText[16], ui32Errors, ui32Idx, ui32SysClock;
//
// Run from the PLL at 120 MHz.
//
ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
SYSCTL_OSC_MAIN |
SYSCTL_USE_PLL |
SYSCTL_CFG_VCO_480), 120000000);
//
// Configure the device pins.
//
PinoutSet(false, false);
//
// Initialize local variables.
//
ui32Errors = 0;
for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
{
pui32CipherText[ui32Idx] = 0;
}
//
// Enable stacking for interrupt handlers. This allows floating-point
// instructions to be used within interrupt handlers, but at the expense of
// extra stack usage.
//
ROM_FPUStackingEnable();
//
// Enable DES interrupts.
//
ROM_IntEnable(INT_DES0);
//
// Enable debug output on UART0 and print a welcome message.
//
ConfigureUART();
UARTprintf("Starting TDES CBC encryption demo.\n");
//
// Enable the uDMA module.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UDMA);
//
// Setup the control table.
//
ROM_uDMAEnable();
ROM_uDMAControlBaseSet(g_psDMAControlTable);
//
// Initialize the CCM and DES modules.
//
if(!DESInit())
{
UARTprintf("Initialization of the DES module failed.\n");
ui32Errors |= 0x00000001;
}
//
// Perform the encryption without uDMA.
//
UARTprintf("Performing encryption without uDMA.\n");
TDESCBCEncrypt(g_pui32TDESPlainText, pui32CipherText, g_pui32TDESKey,
64, g_pui32TDESIV, false);
//
// Check the result.
//
for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
{
if(pui32CipherText[ui32Idx] != g_pui32TDESCipherText[ui32Idx])
{
UARTprintf("Ciphertext mismatch on word %d. Exp: 0x%x, Act: "
"0x%x\n", ui32Idx, g_pui32TDESCipherText[ui32Idx],
pui32CipherText[ui32Idx]);
ui32Errors |= (ui32Idx << 16) | 0x00000002;
}
}
//
// Clear the array containing the ciphertext.
//
for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
{
pui32CipherText[ui32Idx] = 0;
}
//
// Perform the encryption with uDMA.
//
UARTprintf("Performing encryption with uDMA.\n");
TDESCBCEncrypt(g_pui32TDESPlainText, pui32CipherText, g_pui32TDESKey,
64, g_pui32TDESIV, true);
//
// Check the result.
//
for(ui32Idx = 0; ui32Idx < 16; ui32Idx++)
{
if(pui32CipherText[ui32Idx] != g_pui32TDESCipherText[ui32Idx])
{
UARTprintf("Ciphertext mismatch on word %d. Exp: 0x%x, Act: "
"0x%x\n", ui32Idx, g_pui32TDESCipherText[ui32Idx],
pui32CipherText[ui32Idx]);
ui32Errors |= (ui32Idx << 16) | 0x00000004;
}
}
//
// Finished.
//
if(ui32Errors)
{
UARTprintf("Demo failed with error code 0x%x.\n", ui32Errors);
LEDWrite(CLP_D3 | CLP_D4, CLP_D4);
}
else
{
UARTprintf("Demo completed successfully.\n");
LEDWrite(CLP_D3 | CLP_D4, CLP_D3);
}
while(1)
{
}
}
// *************** NodeMain **************
// Main task for the sensor node. This task runs a simple sensor task "scheduler"
// that runs periodically based on the GCF of all sensor's sampling rates, MinSampRate.
// Every sensor is run after a certain number of MinSampRate intervals has passed. Note
// that this is not a real-time scheduler. It assumes that all sensor tasks can run to
// completion within the MinSampRate time, which is at most 1 second.
static void NodeMain( void )
{
SENSOR_MSG_T sensor_msg;
Message transceiver_msg;
char *transceiver_msg_data;
unsigned long i;
unsigned long delay_time;
int (*task)( PORT_T *port );
#if ENABLE_UART_PRINTF
UARTprintf( "\nNode Main\n" );
UARTprintf( "---------\n\n" );
#endif
// XXX Need to add semaphore so NodeMain doesn't run while any sensorInit* tasks are running
for( ;; )
{
delay_time = 3;
// Update the sampling rates if any sampling rate has changed
if( 1 == SampRateChanged )
{
taskENTER_CRITICAL();
updateSamplingRates();
SampRateChanged = 0;
taskEXIT_CRITICAL();
}
// Check if there are active sensors
if( NumActiveSensors > 0 )
{
LED_Off( LED2 );
if( 0 == MinSampRate )
{
#if ENABLE_UART_PRINTF
UARTprintf( "MinSampRate = 0 - put node to sleep\n" );
#endif
}
else
{
// Sensor Task Scheduler
// Note that we assume all tasks can run in well under 1 second. If any tasks take
// longer to run, we need to implement a "background task" that sensor drivers can use.
delay_time = MinSampRate;
for( i = 0; i < 1; i++ )
{
if( SensorSampRateTicks[i] == 0 )
{
SensorSampRateTicks[i] = SensorSampRateTicksReset[i];
switch ( i )
{
case 0:
SensorTask1( SensorPort[i] );
break;
case 1:
SensorTask2( SensorPort[i] );
break;
case 2:
SensorTask3( SensorPort[i] );
break;
case 3:
SensorTask4( SensorPort[i] );
break;
default:
break;
}
}
else
{
if( SensorSampRateTicks[i] != -1 )
{
SensorSampRateTicks[i]--;
}
}
// Process messages sent by each sensor, send them either to the transceiver
// or to another sensor on the node. Other destination IDs for sensor messages
// could be added in the future. For example, messages could be sent to a
// a message log on the node, or potentially to other nodes in the network.
// XXX
// Each sensor sends messages directly to the Transceiver Queue, more efficient
// due to the implementation of the xQueue data structure (passing whole messages
// is costly). An improved version would have message handling done here, so that
// sensor messages could be sent to the transceiver or another location depending
// on message id. This would allow messages between sensors, message backup,
// message logging, etc.
/*
if( pdTRUE == xQueueReceive( (xQueueHandle)SensorPort[i]->tx_fifo, &sensor_msg, 0 ) )
{
// Print message
UARTprintf( "dest_id: %d\n", sensor_msg.dest_id );
UARTprintf( "data_size: %d\n", sensor_msg.data_size );
printDataHex( sensor_msg.data_size, sensor_msg.data );
UARTprintf( "\n" );
if( WSN_RECEIVER_ID == sensor_msg.dest_id )
{
// Send this message to the transceiver
// XXX need timeout here (and in Sensor_PushMessage) in case transceiver is not available
//transceiver_msg.sensorID = SensorPort[i]->sensor_id;
//transceiver_msg.dataSize = sensor_msg.data_size;
//transceiver_msg_data = sensor_msg.data;
//while( xQueueSend( Transceiver_TX_Queue, (void *)&transceiver_msg, (portTickType)0 ) != pdPASS );
}
else
{
// Send this message to the appropriate location
// XXX
}
}
*/
// Check for messages received from the WSN Receiver
// Need a queue to handle "node control" messages from WSN Receiver. Process messages
// from the queue here. I assume this is the Transceiver_Rx_Queue.
// If transceiver interrupts when a message is received, the interrupt can put those messages
// directly into each port's rx_fifo instead of the Transceiver_Rx_Queue.
// XXX
// Incomming messages are handled by the transceiver code, for similar reasons as above.
}
}
}
else
{
// If there are no sensors connected, put the node to sleep
LED_On( LED2 );
#if ENABLE_UART_PRINTF
UARTprintf( "no sensors connected\n" );
#endif
}
// Sleep
// XXX This thread should sleep if there are no active sensors. Need to wake up
// this thread when a new sensor is plugged in, or when Sensor_SendData() is
// called from an ISR.
vTaskDelay( delay_time*TICKS_IN_SEC );
}
}
//*****************************************************************************
//
// Perform an encryption operation.
//
//*****************************************************************************
bool
TDESCBCEncrypt(uint32_t *pui32Src, uint32_t *pui32Dst, uint32_t *pui32Key,
uint32_t ui32Length, uint32_t *pui32IV, bool bUseDMA)
{
//
// Perform a soft reset.
//
ROM_DESReset(DES_BASE);
//
// Clear the interrupt flags.
//
g_bContextInIntFlag = false;
g_bDataInIntFlag = false;
g_bDataOutIntFlag = false;
g_bContextInDMADoneIntFlag = false;
g_bDataInDMADoneIntFlag = false;
g_bDataOutDMADoneIntFlag = false;
//
// Enable all interrupts.
//
ROM_DESIntEnable(DES_BASE, (DES_INT_CONTEXT_IN |
DES_INT_DATA_IN | DES_INT_DATA_OUT));
//
// Configure the DES module.
//
ROM_DESConfigSet(DES_BASE, (DES_CFG_DIR_ENCRYPT | DES_CFG_TRIPLE |
DES_CFG_MODE_CBC));
//
// Write the key.
//
ROM_DESKeySet(DES_BASE, pui32Key);
//
// Write the IV.
//
ROM_DESIVSet(DES_BASE, pui32IV);
//
// Depending on the argument, perform the encryption
// with or without uDMA.
//
if(bUseDMA)
{
//
// Enable DMA interrupts.
//
ROM_DESIntEnable(DES_BASE, (DES_INT_DMA_CONTEXT_IN |
DES_INT_DMA_DATA_IN |
DES_INT_DMA_DATA_OUT));
//
// Setup the DMA module to copy data in.
//
ROM_uDMAChannelAssign(UDMA_CH21_DES0DIN);
ROM_uDMAChannelAttributeDisable(UDMA_CH21_DES0DIN,
UDMA_ATTR_ALTSELECT |
UDMA_ATTR_USEBURST |
UDMA_ATTR_HIGH_PRIORITY |
UDMA_ATTR_REQMASK);
ROM_uDMAChannelControlSet(UDMA_CH21_DES0DIN | UDMA_PRI_SELECT,
UDMA_SIZE_32 | UDMA_SRC_INC_32 |
UDMA_DST_INC_NONE | UDMA_ARB_2 |
UDMA_DST_PROT_PRIV);
ROM_uDMAChannelTransferSet(UDMA_CH21_DES0DIN | UDMA_PRI_SELECT,
UDMA_MODE_BASIC, (void *)pui32Src,
(void *)(DES_BASE + DES_O_DATA_L),
LengthRoundUp(ui32Length) / 4);
UARTprintf("Data in DMA request enabled.\n");
//
// Setup the DMA module to copy the data out.
//
ROM_uDMAChannelAssign(UDMA_CH22_DES0DOUT);
ROM_uDMAChannelAttributeDisable(UDMA_CH22_DES0DOUT,
UDMA_ATTR_ALTSELECT |
UDMA_ATTR_USEBURST |
UDMA_ATTR_HIGH_PRIORITY |
UDMA_ATTR_REQMASK);
ROM_uDMAChannelControlSet(UDMA_CH22_DES0DOUT | UDMA_PRI_SELECT,
UDMA_SIZE_32 | UDMA_SRC_INC_NONE |
UDMA_DST_INC_32 | UDMA_ARB_2 |
UDMA_SRC_PROT_PRIV);
ROM_uDMAChannelTransferSet(UDMA_CH22_DES0DOUT | UDMA_PRI_SELECT,
UDMA_MODE_BASIC,
(void *)(DES_BASE + DES_O_DATA_L),
(void *)pui32Dst,
LengthRoundUp(ui32Length) / 4);
UARTprintf("Data out DMA request enabled.\n");
//
// Enable DMA requests
//
ROM_DESDMAEnable(DES_BASE, DES_DMA_DATA_IN | DES_DMA_DATA_OUT);
//
// Write the length registers to start the process.
//
ROM_DESLengthSet(DES_BASE, ui32Length);
//
// Enable the DMA channels to start the transfers. This must be done after
// writing the length to prevent data from copying before the context is
// truly ready.
//
ROM_uDMAChannelEnable(UDMA_CH21_DES0DIN);
ROM_uDMAChannelEnable(UDMA_CH22_DES0DOUT);
//
// Wait for the data in DMA done interrupt.
//
while(!g_bDataInDMADoneIntFlag)
{
}
//
// Wait for the data out DMA done interrupt.
//
while(!g_bDataOutDMADoneIntFlag)
{
}
}
else
{
//
// Perform the encryption.
//
ROM_DESDataProcess(DES_BASE, pui32Src, pui32Dst, ui32Length);
}
return(true);
}
//*****************************************************************************
//
// Prepares a font in the FATfs file system for use by the graphics library.
//
// This function must be called to prepare a font for use by the graphics
// library. It opens the font file whose name is passed and reads the
// header information. The value returned should be written into the
// pucFontId field of the tFontWrapper structure that will be passed to
// graphics library.
//
// This is a very simple (and slow) implementation. More complex wrappers
// may also initialize a glyph cache here.
//
// \return On success, returns a non-zero pointer identifying the font. On
// error, zero is returned.
//
//*****************************************************************************
unsigned char *
FATFontWrapperLoad(char *pcFilename)
{
FRESULT fresult;
WORD ulRead, ulToRead;
UARTprintf("Attempting to load font %s from FAT file system.\n",
pcFilename);
//
// Make sure a font is not already open.
//
if(g_sFontFile.bInUse)
{
//
// Oops - someone tried to load a new font without unloading the
// previous one.
//
UARTprintf("Another font is already loaded!\n");
return(0);
}
//
// Try to open the file whose name we've been given.
//
fresult = f_open(&g_sFontFile.sFile, pcFilename, FA_READ);
if(fresult != FR_OK)
{
//
// We can't open the file. Either the file doesn't exist or there is
// no SDCard installed. Regardless, return an error.
//
UARTprintf("Error %s (%d) from f_open.\n", StringFromFresult(fresult),
fresult);
return(0);
}
//
// We opened the file successfully. Does it seem to contain a valid
// font? Read the header and see.
//
fresult = f_read(&g_sFontFile.sFile, &g_sFontFile.sFontHeader,
sizeof(tFontWide), &ulRead);
if((fresult == FR_OK) && (ulRead == sizeof(tFontWide)))
{
//
// We read the font header. Is the format correct? We only support
// wide fonts via wrappers.
//
if((g_sFontFile.sFontHeader.ucFormat != FONT_FMT_WIDE_UNCOMPRESSED) &&
(g_sFontFile.sFontHeader.ucFormat != FONT_FMT_WIDE_PIXEL_RLE))
{
//
// This is not a supported font format.
//
UARTprintf("Unrecognized font format. Failing "
"FATFontWrapperLoad.\n");
f_close(&g_sFontFile.sFile);
return(0);
}
//
// The format seems to be correct so read as many block headers as we
// have storage for.
//
ulToRead = (g_sFontFile.sFontHeader.usNumBlocks > MAX_FONT_BLOCKS) ?
MAX_FONT_BLOCKS * sizeof(tFontBlock) :
g_sFontFile.sFontHeader.usNumBlocks * sizeof(tFontBlock);
fresult = f_read(&g_sFontFile.sFile, &g_sFontFile.pBlocks, ulToRead,
&ulRead);
if((fresult == FR_OK) && (ulRead == ulToRead))
{
//
// All is well. Tell the caller the font was opened successfully.
//
UARTprintf("Font %s opened successfully.\n", pcFilename);
g_sFontFile.bInUse = true;
return((unsigned char *)&g_sFontFile);
}
else
{
UARTprintf("Error %s (%d) reading block headers. Read %d, exp %d bytes.\n",
StringFromFresult(fresult), fresult, ulRead, ulToRead);
f_close(&g_sFontFile.sFile);
return(0);
}
}
else
{
//
// We received an error while reading the file header so fail the call.
//
UARTprintf("Error %s (%d) reading font header.\n", StringFromFresult(fresult),
fresult);
f_close(&g_sFontFile.sFile);
return(0);
}
}
//*****************************************************************************
//
// Returns information on the glyphs contained within a given font block.
//
//*****************************************************************************
static unsigned long
FATWrapperFontBlockCodepointsGet(unsigned char *pucFontId,
unsigned short usBlockIndex,
unsigned long *pulStart)
{
tFontBlock sBlock;
tFontFile *pFont;
tBoolean bRetcode;
//
// Parameter sanity check.
//
ASSERT(pucFontId);
//
// Get a pointer to our instance data.
//
pFont = (tFontFile *)pucFontId;
ASSERT(pFont->bInUse);
//
// Have we been passed a valid block index?
//
if(usBlockIndex >= pFont->sFontHeader.usNumBlocks)
{
//
// No - return an error.
//
return(0);
}
//
// Is this block header cached?
//
if(usBlockIndex < MAX_FONT_BLOCKS)
{
//
// Yes - return the information from our cached copy.
//
*pulStart = pFont->pBlocks[usBlockIndex].ulStartCodepoint;
return(pFont->pBlocks[usBlockIndex].ulNumCodepoints);
}
else
{
//
// We don't have the block header cached so read it from the
// SDCard. First move the file pointer to the expected position.
//
bRetcode = FATWrapperFontBlockHeaderGet(&pFont->sFile, &sBlock,
usBlockIndex);
if(bRetcode)
{
*pulStart = sBlock.ulStartCodepoint;
return(sBlock.ulNumCodepoints);
}
else
{
UARTprintf("Error reading block header!\n");
}
}
//
// If we get here, something horrible happened so return a failure.
//
*pulStart = 0;
return(0);
}
//
// Main - It performs initialization, then runs a command processing loop to
// read commands from the console.
//
int
main(void)
{
int nStatus;
FRESULT fresult;
//
// Set the clocking to run from the PLL at 50MHz
//
SysCtlClockSet(SYSCTL_OSCSRC_OSC2 | SYSCTL_PLL_ENABLE | SYSCTL_IMULT(10) |
SYSCTL_SYSDIV(2));
SysCtlAuxClockSet(SYSCTL_OSCSRC_OSC2 | SYSCTL_PLL_ENABLE |
SYSCTL_IMULT(12) | SYSCTL_SYSDIV(2)); //60 MHz
#ifdef _FLASH
//
// Copy time critical code and Flash setup code to RAM
// This includes the following functions: InitFlash_Bank0();
// The RamfuncsLoadStart, RamfuncsLoadSize, and RamfuncsRunStart
// symbols are created by the linker. Refer to the device .cmd file.
//
memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (size_t)&RamfuncsLoadSize);
//
// Call Flash Initialization to setup flash waitstates
// This function must reside in RAM
//
InitFlash_Bank0();
#endif
//
// Initialize interrupt controller and vector table
//
InitPieCtrl();
InitPieVectTable();
//
// Set the system tick to fire 100 times per second.
//
SysTickInit();
SysTickPeriodSet(SysCtlClockGet(SYSTEM_CLOCK_SPEED) / 100);
SysTickIntRegister(SysTickHandler);
SysTickIntEnable();
SysTickEnable();
//
// Enable Interrupts
//
IntMasterEnable();
//
// Configure UART0 for debug output.
//
ConfigureUART();
//
// Print hello message to user.
//
UARTprintf("\n\nSD Card Example Program\n");
UARTprintf("Type \'help\' for help.\n");
//
// Mount the file system, using logical disk 0.
//
fresult = f_mount(0, &g_sFatFs);
if(fresult != FR_OK)
{
UARTprintf("f_mount error: %s\n", StringFromFresult(fresult));
return(1);
}
//
// Enter an (almost) infinite loop for reading and processing commands from
// the user.
//
while(1)
{
//
// Print a prompt to the console. Show the CWD.
//
UARTprintf("\n%s> ", g_cCwdBuf);
//
// Get a line of text from the user.
//
UARTgets(g_cCmdBuf, sizeof(g_cCmdBuf));
//
// Pass the line from the user to the command processor.
// It will be parsed and valid commands executed.
//
nStatus = CmdLineProcess(g_cCmdBuf);
//
// Handle the case of bad command.
//
if(nStatus == CMDLINE_BAD_CMD)
{
UARTprintf("Bad command!\n");
}
//
// Handle the case of too many arguments.
//
else if(nStatus == CMDLINE_TOO_MANY_ARGS)
{
UARTprintf("Too many arguments for command processor!\n");
}
//
// Otherwise the command was executed. Print the error
// code if one was returned.
//
else if(nStatus != 0)
{
UARTprintf("Command returned error code %s\n",
StringFromFresult((FRESULT)nStatus));
}
}
}
void MPU9250_Init()
{
uint32_t Device_ID;
SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinTypeGPIOOutput(GPIO_PORTA_BASE, GPIO_PIN_7);
GPIOPinConfigure(GPIO_PA2_SSI0CLK);
GPIOPinConfigure(GPIO_PA3_SSI0FSS);
GPIOPinConfigure(GPIO_PA4_SSI0RX);
GPIOPinConfigure(GPIO_PA5_SSI0TX);
GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_2 | GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5);
GPIOPadConfigSet(GPIO_PORTA_BASE, GPIO_PIN_3, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
SSIConfigSetExpClk(SSI0_BASE, SysCtlClockGet(), SSI_FRF_MOTO_MODE_3, SSI_MODE_MASTER, 1000000, 8);
SSIEnable(SSI0_BASE);
//
// Display the example setup on the console.
//
UARTprintf("\nPower up.\n");
// MPU-6500 Device ID check and initial
Device_ID = 0x0;
Device_ID = MPU9250_ReadReg(MPU6500_WHO_AM_I);
if(Device_ID == MPU6500_Device_ID)
{
UARTprintf("MPU6500 Device ID: 0x%X\n--- MPU6500 Initialization done.\n", Device_ID);
}
else
{
OLED_Print(0,0,"MPU6500 ERR");
UARTprintf("MPU6500 Device ID: 0x%X\n--- MPU6500 Initialization error.\n", Device_ID);
while (1);
}
MPU9250_SetParameter();
#ifdef USE_MAG
// AK9875 Device ID check
// if AK9875 ID check check failed with no reason, re-power-up the system.
MPU9250_WriteAuxReg(AK8963_CNTL2, 0x01); //soft reset
MPU9250_Delay_nop(100000);
Device_ID = 0x00;
Device_ID = MPU9250_ReadAuxReg(AK8963_WIA);
if(Device_ID == AK8963_Device_ID)
{
UARTprintf("AK8963 Device ID: 0x%X\n--- AK8963 Initialization done.\n", Device_ID);
LED_Blue_Off();
}
else
{
UARTprintf("AK8963 Device ID: 0x%X\n--- AK8963 Initialization error.\n", Device_ID);
OLED_Print(0,0,"AK8963 Init ERR");
LED_Red_Off();
LED_Green_Off();
}
MPU9250_GetMagAdjValue();
MPU9250_WriteAuxReg(AK8963_CNTL1, 0x16); // 16-bits, Rate 100Hz
//MPU9250_WriteAuxReg(AK8963_CNTL1, 0x2); // 14-bits, Rate 8Hz
Device_ID = MPU9250_ReadAuxReg(AK8963_CNTL1);
#else
UARTprintf("AK8963 is disabled.\n");
#endif
}
/**
* Read block(s) from MMC/SD card. The implementation follows
* '26.3.5 MMC/SD Mode Single-Block Read Operation Using EDMA' in 'spruh82a'.
* @param mmcsdCtrlInfo It holds the mmcsd control information.
* @param ptr It determines the address to where data has to read
* @param block It determines from which block data to be read (block >= 0)
* @param nblks It determines the number of blocks to be read (nblks >= 1)
* @retval 1 success
* @retval 0 fail
*/
unsigned int
MMCSDReadCmdSend(mmcsdCtrlInfo *ctrl, void *ptr, unsigned int block, unsigned int nblks) {
// TODO: workaround for buggy READ_MULTI_BLOCK
if (nblks > 1) {
for (unsigned int i = 0; i < nblks; ++i) {
unsigned int res = MMCSDReadCmdSend(ctrl, ptr + i * MMCSD_MAX_BLOCK_LEN, block + i, 1);
assert(res == 1);
}
return 1;
}
assert(nblks == 1);
#if defined(DEBUG)
// UARTprintf("----\r\n");
// UARTprintf("%s(0x%x)\r\n", __FUNCTION__, ctrl);
// syslog(LOG_ERROR, "----");
syslog(LOG_ERROR, "%s(ctrl=0x%p,ptr=0x%p,block=%d,nblks=%d)", __FUNCTION__, ctrl, ptr, block, nblks);
#endif
assert(nblks * MMCSD_MAX_BLOCK_LEN <= sizeof(data_recv_buf));
// MMCSDDataTimeoutSet(ctrl->memBase, 0x0, 0x3FFFFFF);// Infinite wait for CMD response, maximum wait for data transfer
// cmdTimeout = 0; // TODO: fix this (refactoring)
// for(int i = 0; i < sizeof(data_recv_buf); ++i) data_recv_buf[i] = 0xFF; // Fill data_recv_buf for debug
unsigned int status = 1; // 1 for success
volatile struct st_mmcsd *mmc = ctrl->memBase;
ER ercd;
/* 1. Write the card's relative address to the MMC argument registers (MMCARGH and MMCARGL). */
mmcsdCardInfo *card = ctrl->card;
unsigned int address;
/*
* TODO: check this -- ertl-liyixiao
* Address is in blks for high cap cards and in actual bytes
* for standard capacity cards
*/
assert(card->highCap);
if (card->highCap)
address = block;
else
address = block * card->blkLen;
mmc->MMCARGHL = address;
/* 2. Read card CSD to determine the card's maximum block length. */
// TODO:
/* 3. Use the MMC command register (MMCCMD) to send the SET_BLOCKLEN command (if the block
length is different than the length used in the previous operation). The block length must be a multiple
of 512 bytes and less then the maximum block length specified in the CSD. */
// TODO:
/* 4. Reset the FIFO (FIFORST bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL |= MMCSD_MMCFIFOCTL_FIFORST;
mmc->MMCFIFOCTL &= ~MMCSD_MMCFIFOCTL_FIFORST;
/* 5. Set the FIFO direction to receive (FIFODIR bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL &= ~MMCSD_MMCFIFOCTL_FIFODIR;
/* 6. Set the access width (ACCWD bits in MMCFIFOCTL). */
mmc->MMCFIFOCTL &= ~MMCSD_MMCFIFOCTL_ACCWD;
mmc->MMCFIFOCTL |= (MMCSD_MMCFIFOCTL_ACCWD_4BYTES << MMCSD_MMCFIFOCTL_ACCWD_SHIFT); // => 4 bytes
/* 7. Set the FIFO threshold (FIFOLEV bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL |= MMCSD_MMCFIFOCTL_FIFOLEV; // => 64 bytes
/* 8. Set up DMA (DMA size needs to be greater than or equal to FIFOLEV setting). */
CacheDataCleanBuff(data_recv_buf, sizeof(data_recv_buf)); // Clean 'data_recv_buf'
arm926_drain_write_buffer(); // Memory barrier for 'data_recv_buf'
ctrl->xferSetup(ctrl, 1, data_recv_buf/*ptr*/, MMCSD_MAX_BLOCK_LEN, nblks);
/* 9. Use MMCCMD to send the READ_BLOCK command to the card. */
#if defined(DEBUG)
syslog(LOG_ERROR, "%s(): Use MMCCMD to send the READ_BLOCK/READ_MULTI_BLOCK command to the card.", __FUNCTION__);
#endif
// ercd = clr_flg(MMCSD_ISR_FLG, ~(MMCSD_ISR_FLGPTN_DATATIMEOUT)); // Clear data time-out flag
// mmc->MMCIM |= MMCSD_MMCIM_ETOUTRD; // Enable data time-out interrupt
assert(ercd == E_OK);
mmcsdCmd cmd;
cmd.flags = SD_CMDRSP_R1 | SD_CMDRSP_READ | SD_CMDRSP_DATA;
cmd.arg = address;
cmd.nblks = nblks;
if (nblks > 1) {
cmd.flags |= SD_CMDRSP_ABORT;
cmd.idx = SD_CMD(18);
} else {
cmd.idx = SD_CMD(17);
}
status = MMCSDCmdSend(ctrl, &cmd);
if (status == 0) {
syslog(LOG_ERROR, "%s(): MMCSDCmdSend() failed.", __FUNCTION__);
goto error_exit;
}
/* 10. Set the DMATRIG bit in MMCCMD to trigger the first data transfer. */
#if DEBUG_PRINT
// syslog(LOG_ERROR, "%s(): Set the DMATRIG bit, MMCCMD: 0x%08x=>0x%08x", __FUNCTION__, mmc->MMCCMD, mmc->MMCCMD | MMCSD_MMCCMD_DMATRIG);
#endif
// mmc->MMCCMD /*|*/= MMCSD_MMCCMD_DMATRIG;
/* 11. Wait for DMA sequence to complete. */
status = ctrl->xferStatusGet(ctrl);
if (status == 0) { assert(false); goto error_exit; }
/* Invalidate the data cache. */
CacheDataInvalidateBuff((unsigned int) data_recv_buf/*ptr*/, (MMCSD_MAX_BLOCK_LEN * nblks));
/* 12. Use the MMC status register 0 (MMCST0) to check for errors. */
// TODO: check this
#if 0
syslog(LOG_ERROR, "%s(): MMCST0: 0x%08x", __FUNCTION__, mmc->MMCST0);
syslog(LOG_ERROR, "%s(): MMCST1: 0x%08x", __FUNCTION__, mmc->MMCST1);
syslog(LOG_ERROR, "%s(): MMCNBLK: %d", __FUNCTION__, mmc->MMCNBLK);
syslog(LOG_ERROR, "%s(): MMCNBLC: %d", __FUNCTION__, mmc->MMCNBLC);
#endif
assert(sizeof(data_recv_buf) >= MMCSD_MAX_BLOCK_LEN * nblks);
memcpy(ptr, data_recv_buf, MMCSD_MAX_BLOCK_LEN * nblks);
// TODO: ertl-liyixiao
#if defined(DEBUG)
syslog(LOG_ERROR, "%s sector: %d, count: %d\n", __FUNCTION__, block, nblks);
for(int i = 0; i < MMCSD_MAX_BLOCK_LEN * nblks;) {
//((uint8_t*)ptr)[i] = ((uint8_t*)ptr)[i];
uint8_t *val = ((uint8_t*)ptr) + i;
syslog(LOG_ERROR, "%02x %02x %02x %02x %02x", val[0], val[1], val[2], val[3], val[4]);
//printf("%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x \n",
// val[0], val[1], val[2], val[3], val[4], val[5], val[6], val[7], val[8], val[9], val[10], val[11], val[12], val[13], val[14], val[15]);
i += 5;
}
#endif
#if 0 // TODO: !IMPORTANT! STOP_TRANSMISSION must not be sent since MMCSD_MMCNBLK has been set to the exact number.
/* Send a STOP_TRANSMISSION after reading multiple blocks */
if (cmd.nblks > 1) {
status = MMCSDStopCmdSend(ctrl);
assert(status != 0); // TODO: check status
}
#endif
error_exit:
// mmc->MMCIM &= ~MMCSD_MMCIM_ETOUTRD; // Disable data time-out interrupt TODO: fix me
return status;
#if 0
// TODO: -- ertl-liyixiao
#ifdef CACHE_SUPPORTED
/* Clean the data cache. */
CacheDataCleanBuff((unsigned int) ptr, (MMCSD_MAX_BLOCK_LEN * nblks));
#endif
mmcsd_reset_fifo(true);
/* Send a STOP */
if (cmd.nblks > 1)
{
status = MMCSDStopCmdSend(ctrl);
if (status == 0)
{
#if DEBUG_PRINT
UARTprintf("%s(0x%x):MMCSDStopCmdSend() returned 0\r\n", __FUNCTION__, ctrl);
#endif
return 0;
}
}
#endif
}
//*****************************************************************************
//
// This function prints the character out the UART and into the text area of
// the screen.
//
// \param ucChar is the character to print out.
//
// This function handles all of the detail of printing a character to both the
// UART and to the text area of the screen on the evaluation board. The text
// area of the screen will be cleared any time the text goes beyond the end
// of the text area.
//
// \return None.
//
//*****************************************************************************
void
PrintChar(const char ucChar)
{
tRectangle sRect;
//
// If both the line and column have gone to zero then clear the screen.
//
if((g_ulLine == 0) && (g_ulColumn == 0))
{
//
// Form the rectangle that makes up the text box.
//
sRect.sXMin = 0;
sRect.sYMin = DISPLAY_BANNER_HEIGHT + DISPLAY_TEXT_BORDER;
sRect.sXMax = GrContextDpyWidthGet(&g_sContext) - DISPLAY_TEXT_BORDER;
sRect.sYMax = GrContextDpyHeightGet(&g_sContext) -
DISPLAY_BANNER_HEIGHT - DISPLAY_TEXT_BORDER;
//
// Change the foreground color to black and draw black rectangle to
// clear the screen.
//
GrContextForegroundSet(&g_sContext, DISPLAY_TEXT_BG);
GrRectFill(&g_sContext, &sRect);
//
// Reset the foreground color to the text color.
//
GrContextForegroundSet(&g_sContext, DISPLAY_TEXT_FG);
}
//
// Send the character to the UART.
//
UARTprintf("%c", ucChar);
//
// Allow new lines to cause the column to go back to zero.
//
if(ucChar != '\n')
{
//
// Print the character to the screen.
//
GrStringDraw(&g_sContext, &ucChar, 1,
GrFontMaxWidthGet(g_pFontFixed6x8) * g_ulColumn,
DISPLAY_BANNER_HEIGHT + DISPLAY_TEXT_BORDER +
(g_ulLine * GrFontHeightGet(g_pFontFixed6x8)), 0);
}
else
{
//
// This will allow the code below to properly handle the new line.
//
g_ulColumn = g_ulCharsPerLine;
}
//
// Update the text row and column that the next character will use.
//
if(g_ulColumn < g_ulCharsPerLine)
{
//
// No line wrap yet so move one column over.
//
g_ulColumn++;
}
else
{
//
// Line wrapped so go back to the first column and update the line.
//
g_ulColumn = 0;
g_ulLine++;
//
// The line has gone past the end so go back to the first line.
//
if(g_ulLine >= g_ulLinesPerScreen)
{
g_ulLine = 0;
}
}
}
/**
* Write block(s) from MMC/SD card. The implementation follows
* '26.3.5 MMC/SD Mode Single-Block Read Operation Using EDMA' in 'spruh82a'.
* @param mmcsdCtrlInfo It holds the mmcsd control information.
* @param ptr It determines the address from where data has to written
* @param block It determines to which block data to be written (block >= 0)
* @param nblks It determines the number of blocks to be written (nblks >= 1)
* @retval 1 success
* @retval 0 fail
*/
unsigned int
MMCSDWriteCmdSend(mmcsdCtrlInfo *ctrl, void *ptr, unsigned int block, unsigned int nblks) {
// TODO: workaround for buggy WRITE_MULTI_BLOCK
if (nblks > 1) {
for (unsigned int i = 0; i < nblks; ++i) {
unsigned int res = MMCSDWriteCmdSend(ctrl, ptr + i * MMCSD_MAX_BLOCK_LEN, block + i, 1);
assert(res == 1);
}
return 1;
}
assert(nblks == 1);
unsigned int status = 1; // 1 for success
volatile struct st_mmcsd *mmc = ctrl->memBase;
ER ercd;
/* 1. Write the card's relative address to the MMC argument registers (MMCARGH and MMCARGL). */
mmcsdCardInfo *card = ctrl->card;
unsigned int address;
/*
* TODO: check this -- ertl-liyixiao
* Address is in blks for high cap cards and in actual bytes
* for standard capacity cards
*/
assert(card->highCap);
if (card->highCap)
address = block;
else
address = block * card->blkLen;
mmc->MMCARGHL = address;
/* 2. Read card CSD to determine the card's maximum block length. */
// TODO:
// syslog(LOG_ERROR, "card->raw_csd[0]: 0x%08x", card->raw_csd[0]);
// syslog(LOG_ERROR, "card->raw_csd[1]: 0x%08x", card->raw_csd[1]);
// syslog(LOG_ERROR, "card->raw_csd[2]: 0x%08x", card->raw_csd[2]);
// syslog(LOG_ERROR, "card->raw_csd[3]: 0x%08x", card->raw_csd[3]);
syslog(LOG_ERROR, "MMCCTL: 0x%08x", mmc->MMCCTL);
/* 3. Use the MMC command register (MMCCMD) to send the SET_BLOCKLEN command (if the block
length is different than the length used in the previous operation). The block length must be a multiple
of 512 bytes and less then the maximum block length specified in the CSD. */
syslog(LOG_ERROR, "MMCCTL: 0x%08x", mmc->MMCCTL);
syslog(LOG_ERROR, "MMCCLK: 0x%08x", mmc->MMCBLEN);
// TODO:
/* 4. Reset the FIFO (FIFORST bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL |= MMCSD_MMCFIFOCTL_FIFORST;
mmc->MMCFIFOCTL &= ~MMCSD_MMCFIFOCTL_FIFORST;
/* 5. Set the FIFO direction to send (FIFODIR bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL |= MMCSD_MMCFIFOCTL_FIFODIR;
/* 6. Set the access width (ACCWD bits in MMCFIFOCTL). */
mmc->MMCFIFOCTL &= ~MMCSD_MMCFIFOCTL_ACCWD;
mmc->MMCFIFOCTL |= (MMCSD_MMCFIFOCTL_ACCWD_4BYTES << MMCSD_MMCFIFOCTL_ACCWD_SHIFT); // => 4 bytes
/* 7. Set the FIFO threshold (FIFOLEV bit in MMCFIFOCTL). */
mmc->MMCFIFOCTL |= MMCSD_MMCFIFOCTL_FIFOLEV; // => 64 bytes
/* 8. Set up DMA (DMA size needs to be greater than or equal to FIFOLEV setting). */
CacheDataCleanBuff((unsigned int) ptr, (MMCSD_MAX_BLOCK_LEN * nblks)); // Clean data buffer to send
arm926_drain_write_buffer(); // Memory barrier for data buffer to send
ctrl->xferSetup(ctrl, 0, ptr, MMCSD_MAX_BLOCK_LEN, nblks);
{
syslog(LOG_ERROR, "origSrcAddr: 0x%08x", ptr);
EDMA3CCPaRAMEntry param;
EDMA3GetPaRAM(&EDMA3_CC0, EDMA3_CHA_MMCSD0_TX, ¶m);
syslog(LOG_ERROR, "srcAddr: 0x%08x", param.srcAddr);
}
/* 9. Use MMCCMD to send the WRITE_BLOCK command to the card. */
#if defined(DEBUG)
syslog(LOG_ERROR, "%s(): Use MMCCMD to send the WRITE_BLOCK/WRITE_MULTI_BLOCK command to the card.", __FUNCTION__);
#endif
mmcsdCmd cmd;
cmd.flags = SD_CMDRSP_R1 | SD_CMDRSP_WRITE | SD_CMDRSP_DATA;
cmd.arg = address;
cmd.nblks = nblks;
if (nblks > 1) {
cmd.idx = SD_CMD(25);
cmd.flags |= SD_CMDRSP_ABORT;
} else {
cmd.idx = SD_CMD(24);
}
status = MMCSDCmdSend(ctrl, &cmd);
if (status == 0) {
syslog(LOG_ERROR, "%s(): MMCSDCmdSend() failed.", __FUNCTION__);
goto error_exit;
}
// CPU Mode
// uint32_t *buf = ptr; // Assume uint32_t is little-endian
// while (1) {
// EDMA3CCPaRAMEntry param;
//// syslog(LOG_ERROR, "MMCSD0.MMCST0: 0x%08x", MMCSD0.MMCST0);
//// syslog(LOG_ERROR, "MMCSD0.MMCST1: 0x%08x", MMCSD0.MMCST1);
//// syslog(LOG_ERROR, "EDMA3_CC0.ER: 0x%08x", EDMA3_CC0.ER);
//// syslog(LOG_ERROR, "EDMA3_CC0.EMR: 0x%08x", EDMA3_CC0.EMR);
//// syslog(LOG_ERROR, "EDMA3_CC0.SER: 0x%08x", EDMA3_CC0.SER);
// EDMA3GetPaRAM(&EDMA3_CC0, EDMA3_CHA_MMCSD0_TX, ¶m);
//// syslog(LOG_ERROR, "origSrcAddr: 0x%08x", ptr);
// syslog(LOG_ERROR, "srcAddr: 0x%08x", param.srcAddr);
//// syslog(LOG_ERROR, "CCNT: %d", param.cCnt);
//
// tslp_tsk(1000);
// }
/* 10. Set the DMATRIG bit in MMCCMD to trigger the first data transfer. */
#if DEBUG_PRINT
// syslog(LOG_ERROR, "%s(): Set the DMATRIG bit, MMCCMD: 0x%08x=>0x%08x", __FUNCTION__, mmc->MMCCMD, mmc->MMCCMD | MMCSD_MMCCMD_DMATRIG);
#endif
// mmc->MMCCMD /*|*/= MMCSD_MMCCMD_DMATRIG;
/* 11. Wait for DMA sequence to complete. */
status = ctrl->xferStatusGet(ctrl);
if (status == 0) { assert(false); goto error_exit; }
error_exit:
return status;
#if 0
mmcsdCardInfo *card = ctrl->card;
unsigned int status = 0;
unsigned int address;
mmcsdCmd cmd;
#if DEBUG_PRINT
UARTprintf("----\r\n");
UARTprintf("%s(0x%x)\r\n", __FUNCTION__, ctrl);
#endif
}
//*****************************************************************************
//
// This is the main loop that runs the application.
//
//*****************************************************************************
int
main(void)
{
tRectangle sRect;
//
// Set the clocking to run directly from the crystal.
//
SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_8MHZ);
//
// Enable the peripherals used by this example.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
//
// Configure the relevant pins such that UART0 owns them.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
//
// Open UART0 for debug output.
//
UARTStdioInit(0);
//
// Enable the USB mux GPIO.
//
SysCtlPeripheralEnable(USB_MUX_GPIO_PERIPH);
//
// The LM3S3748 board uses a USB mux that must be switched to use the
// host connector and not the device connector.
//
GPIOPinTypeGPIOOutput(USB_MUX_GPIO_BASE, USB_MUX_GPIO_PIN);
GPIOPinWrite(USB_MUX_GPIO_BASE, USB_MUX_GPIO_PIN, USB_MUX_SEL_HOST);
//
// Configure the power pins for host controller.
//
GPIOPinTypeUSBDigital(GPIO_PORTH_BASE, GPIO_PIN_3 | GPIO_PIN_4);
//
// Initialize the display driver.
//
Formike128x128x16Init();
//
// Turn on the backlight.
//
Formike128x128x16BacklightOn();
//
// Initialize the graphics context.
//
GrContextInit(&g_sContext, &g_sFormike128x128x16);
//
// Fill the top 15 rows of the screen with blue to create the banner.
//
sRect.sXMin = 0;
sRect.sYMin = 0;
sRect.sXMax = GrContextDpyWidthGet(&g_sContext) - 1;
sRect.sYMax = DISPLAY_BANNER_HEIGHT;
GrContextForegroundSet(&g_sContext, DISPLAY_BANNER_BG);
GrRectFill(&g_sContext, &sRect);
//
// Put a white box around the banner.
//
GrContextForegroundSet(&g_sContext, ClrWhite);
GrRectDraw(&g_sContext, &sRect);
//
// Put the application name in the middle of the banner.
//
GrContextFontSet(&g_sContext, g_pFontFixed6x8);
GrStringDrawCentered(&g_sContext, "usb_host_keyboard", -1,
GrContextDpyWidthGet(&g_sContext) / 2, 7, 0);
//
// Calculate the number of characters that will fit on a line.
// Make sure to leave a small border for the text box.
//
g_ulCharsPerLine = (GrContextDpyWidthGet(&g_sContext) - 4) /
GrFontMaxWidthGet(g_pFontFixed6x8);
//
// Calculate the number of lines per usable text screen. This requires
// taking off space for the top and bottom banners and adding a small bit
// for a border.
//
g_ulLinesPerScreen = (GrContextDpyHeightGet(&g_sContext) -
(2*(DISPLAY_BANNER_HEIGHT + 1)))/
GrFontHeightGet(g_pFontFixed6x8);
//
// Register the host class drivers.
//
USBHCDRegisterDrivers(0, g_ppHostClassDrivers, g_ulNumHostClassDrivers);
//
// Open and instance of the keyboard class driver.
//
UARTprintf("Host Keyboard Application\n");
//
// Open an instance of the keyboard driver. The keyboard does not need
// to be present at this time, this just save a place for it and allows
// the applications to be notified when a keyboard is present.
//
g_ulKeyboardInstance = USBHKeyboardOpen(KeyboardCallback, g_pucBuffer,
KEYBOARD_MEMORY_SIZE);
//
// Initialize the power configuration. This sets the power enable signal
// to be active high and does not enable the power fault.
//
USBHCDPowerConfigInit(0, USBHCD_VBUS_AUTO_HIGH);
//
// Initialize the host controller stack.
//
USBHCDInit(0, g_pHCDPool, HCD_MEMORY_SIZE);
//
// Call the main loop for the Host controller driver.
//
USBHCDMain();
//
// Initial update of the screen.
//
UpdateStatus();
//
// The main loop for the application.
//
while(1)
{
switch(g_eUSBState)
{
//
// This state is entered when they keyboard is first detected.
//
case STATE_KEYBOARD_INIT:
{
//
// Initialized the newly connected keyboard.
//
USBHKeyboardInit(g_ulKeyboardInstance);
//
// Proceed to the keyboard connected state.
//
g_eUSBState = STATE_KEYBOARD_CONNECTED;
USBHKeyboardModifierSet(g_ulKeyboardInstance, g_ulModifiers);
//
// Update the screen now that the keyboard has been
// initialized.
//
UpdateStatus();
break;
}
case STATE_KEYBOARD_UPDATE:
{
//
// If the application detected a change that required an
// update to be sent to the keyboard to change the modifier
// state then call it and return to the connected state.
//
g_eUSBState = STATE_KEYBOARD_CONNECTED;
USBHKeyboardModifierSet(g_ulKeyboardInstance, g_ulModifiers);
break;
}
case STATE_KEYBOARD_CONNECTED:
{
//
// Nothing is currently done in the main loop when the keyboard
// is connected.
//
break;
}
case STATE_UNKNOWN_DEVICE:
{
//
// Nothing to do as the device is unknown.
//
break;
}
case STATE_NO_DEVICE:
{
//
// Nothing is currently done in the main loop when the keyboard
// is not connected.
//
break;
}
default:
{
break;
}
}
//
// Periodic call the main loop for the Host controller driver.
//
USBHCDMain();
}
}
//*****************************************************************************
//
// Handles bulk driver notifications related to the receive channel (data from
// the USB host).
//
// \param pvCBData is the client-supplied callback pointer for this channel.
// \param ulEvent identifies the event that has been sent.
// \param ulMsgValue is an event-specific value.
// \param pvMsgData is an event-specific pointer.
//
// This function is called by the bulk driver to notify us of any events
// related to operation of the receive data channel (the OUT channel carrying
// data from the USB host).
//
// \return The return value is event-specific.
//
//*****************************************************************************
unsigned long
RxHandler(void *pvCBData, unsigned long ulEvent, unsigned long ulMsgValue,
void *pvMsgData)
{
//
// Which event was sent?
//
switch(ulEvent)
{
//
// The host has connected.
//
case USB_EVENT_CONNECTED:
{
g_bUSBConfigured = true;
UARTprintf("Host connected.\n");
//
// Flush our buffers.
//
USBBufferFlush(&g_sTxBuffer);
USBBufferFlush(&g_sRxBuffer);
break;
}
//
// The host has disconnected.
//
case USB_EVENT_DISCONNECTED:
{
g_bUSBConfigured = false;
UARTprintf("Host disconnected.\n");
break;
}
//
// A new packet has been received.
//
case USB_EVENT_RX_AVAILABLE:
{
tUSBDBulkDevice *psDevice;
//
// Get a pointer to our instance data from the callback data
// parameter.
//
psDevice = (tUSBDBulkDevice *)pvCBData;
//
// Read the new packet and echo it back to the host.
//
return(EchoNewDataToHost(psDevice, pvMsgData, ulMsgValue));
}
//
// Ignore SUSPEND and RESUME for now.
//
case USB_EVENT_SUSPEND:
case USB_EVENT_RESUME:
{
break;
}
//
// Ignore all other events and return 0.
//
default:
{
break;
}
}
return(0);
}
//*****************************************************************************
//
// Configure Timer0B as a 16-bit one-shot counter with a single interrupt
// after 1ms.
//
//*****************************************************************************
int
main(void)
{
//
// Set the clocking to run directly from the external crystal/oscillator.
// TODO: The SYSCTL_XTAL_ value must be changed to match the value of the
// crystal on your board.
//
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// The Timer0 peripheral must be enabled for use.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
//
// Set up the serial console to use for displaying messages. This is
// just for this example program and is not needed for Timer operation.
//
InitConsole();
//
// Display the example setup on the console.
//
UARTprintf("16-Bit Timer Interrupt ->");
UARTprintf("\n Timer = Timer0B");
UARTprintf("\n Mode = One Shot");
UARTprintf("\n Rate = 1ms");
//
// The Timer0 peripheral must be enabled for use.
//
TimerConfigure(TIMER0_BASE, TIMER_CFG_16_BIT_PAIR |
TIMER_CFG_B_ONE_SHOT);
//
// Set the Timer0B load value to 1ms.
//
TimerLoadSet(TIMER0_BASE, TIMER_B, SysCtlClockGet() / 1000);
//
// Enable processor interrupts.
//
IntMasterEnable();
//
// Configure the Timer0B interrupt for timer timeout.
//
TimerIntEnable(TIMER0_BASE, TIMER_TIMB_TIMEOUT);
//
// Enable the Timer0B interrupt on the processor (NVIC).
//
IntEnable(INT_TIMER0B);
//
// Enable Timer0B.
//
TimerEnable(TIMER0_BASE, TIMER_B);
//
// Wait for interrupt to occur
//
while(!g_ulIntFlag)
{
}
//
// Display a message indicating that the one shot interrupt was received.
//
UARTprintf("\n\nOne shot timer interrupt received.");
//
// Loop forever.
//
while(1)
{
}
}
//*****************************************************************************
//
// This is the main application entry function.
//
//*****************************************************************************
int
main(void)
{
unsigned long ulTxCount;
unsigned long ulRxCount;
//
// Set the clocking to run from the PLL at 50MHz
//
ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Enable the UART.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
UARTStdioInit(0);
UARTprintf("\033[2JBulk device application\n");
//
// Not configured initially.
//
g_bUSBConfigured = false;
//
// Enable the system tick.
//
ROM_SysTickPeriodSet(ROM_SysCtlClockGet() / SYSTICKS_PER_SECOND);
ROM_SysTickIntEnable();
ROM_SysTickEnable();
//
// Initialize the transmit and receive buffers.
//
USBBufferInit(&g_sTxBuffer);
USBBufferInit(&g_sRxBuffer);
//
// Set the USB stack mode to Device mode with VBUS monitoring.
//
USBStackModeSet(0, USB_MODE_DEVICE, 0);
//
// Pass our device information to the USB library and place the device
// on the bus.
//
USBDBulkInit(0, &g_sBulkDevice);
//
// Wait for initial configuration to complete.
//
UARTprintf("Waiting for host...\n");
//
// Clear our local byte counters.
//
ulRxCount = 0;
ulTxCount = 0;
//
// Main application loop.
//
while(1)
{
//
// See if any data has been transferred.
//
if((ulTxCount != g_ulTxCount) || (ulRxCount != g_ulRxCount))
{
//
// Take a snapshot of the latest transmit and receive counts.
//
ulTxCount = g_ulTxCount;
ulRxCount = g_ulRxCount;
//
// Update the display of bytes transferred.
//
UARTprintf("\rTx: %d Rx: %d", ulTxCount, ulRxCount);
}
}
}
/**
* \brief This function sends the command to MMCSD.
*
* \param mmcsdCtrlInfo It holds the mmcsd control information.
*
* \param mmcsdCmd It determines the mmcsd cmd
*
* \return status of the command.
*
**/
unsigned int MMCSDLibCmdSend(mmcsdCtrlInfo *ctrl, mmcsdCmd *c)
{
unsigned int cmdType = MMCSD_CMD_TYPE_NORMAL;
unsigned int dataPresent;
unsigned int status = 0;
unsigned int rspType;
unsigned int cmdDir;
unsigned int nblks;
unsigned int cmd;
#if DEBUG_PRINT
// UARTprintf("%s(0x%p,0x%x=%d):", __FUNCTION__, ctrl, c->idx, c->idx);
syslog(LOG_ERROR, "%s(0x%p,CMD%d):", __FUNCTION__, ctrl, c->idx);
#endif
if (c->flags & SD_CMDRSP_STOP)
{
cmdType = MMCSD_CMD_TYPE_SUSPEND;
}
else if (c->flags & SD_CMDRSP_FS)
{
cmdType = MMCSD_CMD_TYPE_FUNCSEL;
}
else if (c->flags & SD_CMDRSP_ABORT)
{
cmdType = MMCSD_CMD_TYPE_ABORT;
}
cmdDir = (c->flags & SD_CMDRSP_READ)
? MMCSD_CMD_DIR_READ
: MMCSD_CMD_DIR_WRITE;
dataPresent = (c->flags & SD_CMDRSP_DATA) ? 1 : 0;
nblks = (dataPresent == 1) ? c->nblks : 0;
#if DEBUG_PRINT
UARTprintf("dir=%d,dp=%d,nblks=%d,",cmdDir,dataPresent,nblks);
#endif
if (c->flags & SD_CMDRSP_NONE)
rspType = MMCSD_NO_RESPONSE;
else if (c->flags & SD_CMDRSP_R1)
rspType = MMCSD_R1_RESPONSE;
else if (c->flags & SD_CMDRSP_R2)
rspType = MMCSD_R2_RESPONSE;
else if (c->flags & SD_CMDRSP_R3)
rspType = MMCSD_R3_RESPONSE;
else if (c->flags & SD_CMDRSP_R4)
rspType = MMCSD_R4_RESPONSE;
else if (c->flags & SD_CMDRSP_R5)
rspType = MMCSD_R5_RESPONSE;
else if (c->flags & SD_CMDRSP_R6)
rspType = MMCSD_R6_RESPONSE;
else if (c->flags & SD_CMDRSP_R7)
rspType = MMCSD_R7_RESPONSE;
else
rspType = MMCSD_R1_RESPONSE; /* Assumes R1? */
if (c->flags & SD_CMDRSP_BUSY)
rspType |= MMCSD_BUSY_RESPONSE;
cmd = MMCSD_CMD(c->idx, cmdType, rspType, cmdDir);
#if DEBUG_PRINT
UARTprintf("rspType=%d,cmd=0x%x,arg=0x%x\r\n",
rspType>>MMCSD_MMCCMD_RSPFMT_SHIFT,cmd,c->arg);
#endif
/* Shouldn't I do this every time? Everything below depends on the IRQs */
if (dataPresent)
{
#if DEBUG_PRINT
unsigned int s;
s =
#endif
MMCSDIntrStatusGetAndClr(ctrl->memBase);
#if DEBUG_PRINT
UARTprintf("%s(0x%p,0x%x):status=0x%x\r\n",
__FUNCTION__, ctrl, c->idx, s);
#endif
}
/* Start send. Status bits will get updated. Hopefully. */
/* This function sets MMCSD_MMCNBLK */
MMCSDCommandSend(ctrl->memBase, cmd, c->arg, (void*)dataPresent,
nblks, ctrl->dmaEnable);
/* Note that status does not changed unless there is a cmdStatusGet */
/* function. Intended? */
if (ctrl->cmdStatusGet)
{
/* This function will block until response is available. */
status = ctrl->cmdStatusGet(ctrl);
}
if (status == 1)
{
MMCSDResponseGet(ctrl->memBase, c->rsp);
#if defined(DEBUG)
// UARTprintf("%s(0x%p,0x%x):0x%08x,0x%08x,0x%08x,0x%08x\r\n",
// __FUNCTION__, ctrl, c->idx,
// c->rsp[0],c->rsp[1], c->rsp[2], c->rsp[3]);
switch(rspType) {
case MMCSD_R1_RESPONSE:
syslog(LOG_ERROR, "%s() R1:status=0x%08x", __FUNCTION__, c->rsp[0]);
break;
case MMCSD_R1_RESPONSE | MMCSD_BUSY_RESPONSE:
syslog(LOG_ERROR, "%s() R1b:status=0x%08x", __FUNCTION__, c->rsp[0]);
break;
default:
syslog(LOG_ERROR, "%s(): Unknown response", __FUNCTION__);
}
#endif
}
return status;
}
//*****************************************************************************
//
// This task reads the buttons' state and passes this information to LEDTask.
//
//*****************************************************************************
static void
SwitchTask(void *pvParameters)
{
portTickType ulLastTime;
unsigned long ulSwitchDelay = 25;
unsigned char ucCurButtonState, ucPrevButtonState;
unsigned char ucMessage;
ucCurButtonState = ucPrevButtonState = 0;
//
// Get the current tick count.
//
ulLastTime = xTaskGetTickCount();
//
// Loop forever.
//
while(1)
{
//
// Poll the debounced state of the buttons.
//
ucCurButtonState = ButtonsPoll(0, 0);
//
// Check if previous debounced state is equal to the current state.
//
if(ucCurButtonState != ucPrevButtonState)
{
ucPrevButtonState = ucCurButtonState;
//
// Check to make sure the change in state is due to button press
// and not due to button release.
//
if((ucCurButtonState & ALL_BUTTONS) != 0)
{
if((ucCurButtonState & ALL_BUTTONS) == LEFT_BUTTON)
{
ucMessage = LEFT_BUTTON;
//
// Guard UART from concurrent access.
//
xSemaphoreTake(g_pUARTSemaphore, portMAX_DELAY);
UARTprintf("Left Button is pressed.\n");
xSemaphoreGive(g_pUARTSemaphore);
}
else if((ucCurButtonState & ALL_BUTTONS) == RIGHT_BUTTON)
{
ucMessage = RIGHT_BUTTON;
//
// Guard UART from concurrent access.
//
xSemaphoreTake(g_pUARTSemaphore, portMAX_DELAY);
UARTprintf("Right Button is pressed.\n");
xSemaphoreGive(g_pUARTSemaphore);
}
//
// Pass the value of the button pressed to LEDTask.
//
if(xQueueSend(g_pLEDQueue, &ucMessage, portMAX_DELAY) !=
pdPASS)
{
//
// Error. The queue should never be full. If so print the
// error message on UART and wait for ever.
//
UARTprintf("\nQueue full. This should never happen.\n");
while(1)
{
}
}
}
}
//
// Wait for the required amount of time to check back.
//
vTaskDelayUntil(&ulLastTime, ulSwitchDelay / portTICK_RATE_MS);
}
}
//*****************************************************************************
//
// Configure the CAN and enter a loop to transmit periodic CAN messages.
//
//*****************************************************************************
int
main(void)
{
//
// Set the clocking to run directly from the external crystal/oscillator.
// TODO: The SYSCTL_XTAL_ value must be changed to match the value of the
// crystal on your board.
//
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
//
// Set up the serial console to use for displaying messages. This is
// just for this example program and is not needed for CAN operation.
//
InitConsole();
//
// For this example CAN0 is used with RX and TX pins on port B4 and B5.
// The actual port and pins used may be different on your part, consult
// the data sheet for more information.
// GPIO port B needs to be enabled so these pins can be used.
// TODO: change this to whichever GPIO port you are using
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
//
// Configure the GPIO pin muxing to select CAN0 functions for these pins.
// This step selects which alternate function is available for these pins.
// This is necessary if your part supports GPIO pin function muxing.
// Consult the data sheet to see which functions are allocated per pin.
// TODO: change this to select the port/pin you are using
//
GPIOPinConfigure(GPIO_PB4_CAN0RX);
GPIOPinConfigure(GPIO_PB5_CAN0TX);
//
// Enable the alternate function on the GPIO pins. The above step selects
// which alternate function is available. This step actually enables the
// alternate function instead of GPIO for these pins.
// TODO: change this to match the port/pin you are using
//
GPIOPinTypeCAN(GPIO_PORTB_BASE, GPIO_PIN_4 | GPIO_PIN_5);
//
// The GPIO port and pins have been set up for CAN. The CAN peripheral
// must be enabled.
//
SysCtlPeripheralEnable(SYSCTL_PERIPH_CAN0);
//
// Initialize the CAN controller
//
CANInit(CAN0_BASE);
//
// Set up the bit rate for the CAN bus. This function sets up the CAN
// bus timing for a nominal configuration. You can achieve more control
// over the CAN bus timing by using the function CANBitTimingSet() instead
// of this one, if needed.
// In this example, the CAN bus is set to 500 kHz. In the function below,
// the call to SysCtlClockGet() is used to determine the clock rate that
// is used for clocking the CAN peripheral. This can be replaced with a
// fixed value if you know the value of the system clock, saving the extra
// function call. For some parts, the CAN peripheral is clocked by a fixed
// 8 MHz regardless of the system clock in which case the call to
// SysCtlClockGet() should be replaced with 8000000. Consult the data
// sheet for more information about CAN peripheral clocking.
//
CANBitRateSet(CAN0_BASE, SysCtlClockGet(), 500000);
//
// Enable interrupts on the CAN peripheral. This example uses static
// allocation of interrupt handlers which means the name of the handler
// is in the vector table of startup code. If you want to use dynamic
// allocation of the vector table, then you must also call CANIntRegister()
// here.
//
// CANIntRegister(CAN0_BASE, CANIntHandler); // if using dynamic vectors
//
CANIntEnable(CAN0_BASE, CAN_INT_MASTER | CAN_INT_ERROR | CAN_INT_STATUS);
//
// Enable the CAN interrupt on the processor (NVIC).
//
IntEnable(INT_CAN0);
//
// Enable the CAN for operation.
//
CANEnable(CAN0_BASE);
//
// Initialize the message object that will be used for sending CAN
// messages. The message will be 4 bytes that will contain an incrementing
// value. Initially it will be set to 0.
//
//
// Initialize message object 1 to be able to send CAN message 1. This
// message object is not shared so it only needs to be initialized one
// time, and can be used for repeatedly sending the same message ID.
//
g_sCANMsgObject1.ui32MsgID = 0x1001;
g_sCANMsgObject1.ui32MsgIDMask = 0;
g_sCANMsgObject1.ui32Flags = MSG_OBJ_TX_INT_ENABLE;
g_sCANMsgObject1.ui32MsgLen = sizeof(g_pui8Msg1);
g_sCANMsgObject1.pui8MsgData = g_pui8Msg1;
//
// Initialize message object 2 to be able to send CAN message 2. This
// message object is not shared so it only needs to be initialized one
// time, and can be used for repeatedly sending the same message ID.
//
g_sCANMsgObject2.ui32MsgID = 0x2001;
g_sCANMsgObject2.ui32MsgIDMask = 0;
g_sCANMsgObject2.ui32Flags = MSG_OBJ_TX_INT_ENABLE;
g_sCANMsgObject2.ui32MsgLen = sizeof(g_pui8Msg2);
g_sCANMsgObject2.pui8MsgData = g_pui8Msg2;
//
// Enter loop to send messages. Four messages will be sent once per
// second. The contents of each message will be changed each time.
//
for(;;)
{
//
// Send message 1 using CAN controller message object 1. This is
// the only message sent using this message object. The
// CANMessageSet() function will cause the message to be sent right
// away.
//
PrintCANMessageInfo(&g_sCANMsgObject1, 1);
CANMessageSet(CAN0_BASE, 1, &g_sCANMsgObject1, MSG_OBJ_TYPE_TX);
//
// Send message 2 using CAN controller message object 2. This is
// the only message sent using this message object. The
// CANMessageSet() function will cause the message to be sent right
// away.
//
PrintCANMessageInfo(&g_sCANMsgObject2, 2);
CANMessageSet(CAN0_BASE, 2, &g_sCANMsgObject2, MSG_OBJ_TYPE_TX);
//
// Load message object 3 with message 3. This is needs to be done each
// time because message object 3 is being shared for two different
// messages.
//
g_sCANMsgObject3.ui32MsgID = 0x3001;
g_sCANMsgObject3.ui32MsgIDMask = 0;
g_sCANMsgObject3.ui32Flags = MSG_OBJ_TX_INT_ENABLE;
g_sCANMsgObject3.ui32MsgLen = sizeof(g_pui8Msg3);
g_sCANMsgObject3.pui8MsgData = g_pui8Msg3;
//
// Clear the flag that indicates that message 3 has been sent. This
// flag will be set in the interrupt handler when a message has been
// sent using message object 3.
//
g_bMsgObj3Sent = 0;
//
// Now send message 3 using CAN controller message object 3. This is
// the first message sent using this message object. The
// CANMessageSet() function will cause the message to be sent right
// away.
//
PrintCANMessageInfo(&g_sCANMsgObject3, 3);
CANMessageSet(CAN0_BASE, 3, &g_sCANMsgObject3, MSG_OBJ_TYPE_TX);
//
// Wait for the indication from the interrupt handler that message
// object 3 is done, because we are re-using it for another message.
//
while(!g_bMsgObj3Sent)
{
}
//
// Load message object 3 with message 4. This is needed because
// message object 3 is being shared for two different messages.
//
g_sCANMsgObject3.ui32MsgID = 0x3002;
g_sCANMsgObject3.ui32MsgIDMask = 0;
g_sCANMsgObject3.ui32Flags = MSG_OBJ_TX_INT_ENABLE;
g_sCANMsgObject3.ui32MsgLen = sizeof(g_pui8Msg4);
g_sCANMsgObject3.pui8MsgData = g_pui8Msg4;
//
// Now send message 4 using CAN controller message object 3. This is
// the second message sent using this message object. The
// CANMessageSet() function will cause the message to be sent right
// away.
//
PrintCANMessageInfo(&g_sCANMsgObject3, 3);
CANMessageSet(CAN0_BASE, 3, &g_sCANMsgObject3, MSG_OBJ_TYPE_TX);
//
// Wait 1 second before continuing
//
SimpleDelay();
//
// Check the error flag to see if errors occurred
//
if(g_bErrFlag)
{
UARTprintf(" error - cable connected?\n");
}
else
{
//
// If no errors then print the count of message sent
//
UARTprintf(" total count = %u\n",
g_ui32Msg1Count + g_ui32Msg2Count + g_ui32Msg3Count);
}
//
// Change the value in the message data for each of the messages.
//
(*(uint32_t *)g_pui8Msg1)++;
(*(uint32_t *)g_pui8Msg2)++;
(*(uint32_t *)g_pui8Msg3)++;
(*(uint32_t *)&g_pui8Msg4[0])++;
(*(uint32_t *)&g_pui8Msg4[4])--;
}
//
// Return no errors
//
return(0);
}
void alarmState(void)
{
/* Enter accurate button OFF value here */
while(temp[0] > 35) //Till User Doesn't Press the button
{
UARTprintf("ALARM TRIGGERED\n");
for(i=0; i<=800000;i++)
{
/*Configure ADC Peripheral for READING THE BUTTON*/
/*Configure ADC Sequence*/
ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_PROCESSOR, 0);
/*Enable ADC sequence*/
ADCSequenceDisable(ADC0_BASE, 0);
SysCtlDelay(SysCtlClockGet()/10);
ADCSequenceEnable(ADC0_BASE, 0);
/*Clear ADC Interrupt*/
ADCIntClear(ADC0_BASE, 0);
IntMasterEnable();
ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CTL_CH0 | ADC_CTL_IE | ADC_CTL_END);
ADCProcessorTrigger(ADC0_BASE, 0);
while(!ADCIntStatus(ADC0_BASE, 0, false))
{
}
ADCIntClear(ADC0_BASE, 0);
ADCSequenceDataGet(ADC0_BASE, 0, temp);
/*Check if button was pressed*/
if(temp[0] < 20)
{
/*Debounce the button if it IS READ */
for(i=0; i<=2000; i++)
{
}
if(temp[0] > 20)
{
break;
}
}
/*If button is not pressed the initiate alarm sequence */
GPIOPinWrite(relaycontrolbase, relaycontrolpin, relaycontrolpin);
for(i=0; i<=3; i++)
{
speakerplay();
}
GPIOPinWrite(relaycontrolbase, relaycontrolpin, 0);
/* Give a missed call using GPS*/
//ENTER GSM MISSED CALL FUNCTION HERE
}
SysCtlDelay(SysCtlClockGet());
/*If the user doesnt PRESS the button */
if(i == 800000)
{
UARTprintf("NO REACTION\n");
delay(2000);
UARTprintf("SYSTEM STALLED\n");
SysCtlDelay(SysCtlClockGet()/5);
/*Send message using GPS*/
//ENTER FUNCTION FOR GSM MESSAGE HERE
/*System will stall if driver was unable to push the safe button in stipulated time */
while(1)
{
GPIOPinWrite(relaycontrolbase, relaycontrolpin, relaycontrolpin);
for(i=0; i<=100; i++)
{
speakerplay();
}
GPIOPinWrite(relaycontrolbase, relaycontrolpin, 0);
}
}
UARTprintf("ALARM\n");
delay(2000);
UARTprintf("ESCAPED\n");
GPIOPinWrite(relaycontrolbase, relaycontrolpin, 0);
SysCtlDelay(SysCtlClockGet()/2);
}
}
void initsensorhub(void)
{
//
// Enable port B used for motion interrupt.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
//
// Initialize the UART.
//
ConfigureUART();
//
// Print the welcome message to the terminal.
//
UARTprintf("\033[2JMPU9150 Raw Example\n");
//
// Set the color to a purple approximation.
//
g_pui32Colors[RED] = 0x8000;
g_pui32Colors[BLUE] = 0x8000;
g_pui32Colors[GREEN] = 0x0000;
//
// Initialize RGB driver.
//
RGBInit(0);
RGBColorSet(g_pui32Colors);
RGBIntensitySet(0.5f);
RGBEnable();
//
// The I2C3 peripheral must be enabled before use.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_I2C3);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
//
// Configure the pin muxing for I2C3 functions on port D0 and D1.
//
ROM_GPIOPinConfigure(GPIO_PD0_I2C3SCL);
ROM_GPIOPinConfigure(GPIO_PD1_I2C3SDA);
//
// Select the I2C function for these pins. This function will also
// configure the GPIO pins pins for I2C operation, setting them to
// open-drain operation with weak pull-ups. Consult the data sheet
// to see which functions are allocated per pin.
//
GPIOPinTypeI2CSCL(GPIO_PORTD_BASE, GPIO_PIN_0);
ROM_GPIOPinTypeI2C(GPIO_PORTD_BASE, GPIO_PIN_1);
//
// Configure and Enable the GPIO interrupt. Used for INT signal from the
// MPU9150
//
ROM_GPIOPinTypeGPIOInput(GPIO_PORTB_BASE, GPIO_PIN_2);
GPIOIntEnable(GPIO_PORTB_BASE, GPIO_PIN_2);
ROM_GPIOIntTypeSet(GPIO_PORTB_BASE, GPIO_PIN_2, GPIO_FALLING_EDGE);
ROM_IntEnable(INT_GPIOB);
//
// Keep only some parts of the systems running while in sleep mode.
// GPIOB is for the MPU9150 interrupt pin.
// UART0 is the virtual serial port
// TIMER0, TIMER1 and WTIMER5 are used by the RGB driver
// I2C3 is the I2C interface to the ISL29023
//
ROM_SysCtlPeripheralClockGating(true);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_GPIOB);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_UART0);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_TIMER0);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_TIMER1);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_I2C3);
ROM_SysCtlPeripheralSleepEnable(SYSCTL_PERIPH_WTIMER5);
//
// Enable interrupts to the processor.
//
ROM_IntMasterEnable();
//
// Initialize I2C3 peripheral.
//
I2CMInit(&g_sI2CInst, I2C3_BASE, INT_I2C3, 0xff, 0xff,
ROM_SysCtlClockGet());
//
// Initialize the MPU9150 Driver.
//
MPU9150Init(&g_sMPU9150Inst, &g_sI2CInst, MPU9150_I2C_ADDRESS,
MPU9150AppCallback, &g_sMPU9150Inst);
//
// Wait for transaction to complete
//
MPU9150AppI2CWait(__FILE__, __LINE__);
//
// Write application specifice sensor configuration such as filter settings
// and sensor range settings.
//
g_sMPU9150Inst.pui8Data[0] = MPU9150_CONFIG_DLPF_CFG_94_98;
g_sMPU9150Inst.pui8Data[1] = MPU9150_GYRO_CONFIG_FS_SEL_250;
g_sMPU9150Inst.pui8Data[2] = (MPU9150_ACCEL_CONFIG_ACCEL_HPF_5HZ |
MPU9150_ACCEL_CONFIG_AFS_SEL_2G);
MPU9150Write(&g_sMPU9150Inst, MPU9150_O_CONFIG, g_sMPU9150Inst.pui8Data, 3,
MPU9150AppCallback, &g_sMPU9150Inst);
//
// Wait for transaction to complete
//
MPU9150AppI2CWait(__FILE__, __LINE__);
//
// Configure the data ready interrupt pin output of the MPU9150.
//
g_sMPU9150Inst.pui8Data[0] = MPU9150_INT_PIN_CFG_INT_LEVEL |
MPU9150_INT_PIN_CFG_INT_RD_CLEAR |
MPU9150_INT_PIN_CFG_LATCH_INT_EN;
g_sMPU9150Inst.pui8Data[1] = MPU9150_INT_ENABLE_DATA_RDY_EN;
MPU9150Write(&g_sMPU9150Inst, MPU9150_O_INT_PIN_CFG,
g_sMPU9150Inst.pui8Data, 2, MPU9150AppCallback,
&g_sMPU9150Inst);
//
// Wait for transaction to complete
//
MPU9150AppI2CWait(__FILE__, __LINE__);
//
// Initialize the DCM system. 50 hz sample rate.
// accel weight = .2, gyro weight = .8, mag weight = .2
//
CompDCMInit(&g_sCompDCMInst, 1.0f / 50.0f, 0.2f, 0.6f, 0.2f);
UARTprintf("\033[2J\033[H");
UARTprintf("MPU9150 9-Axis Simple Data Application Example\n\n");
UARTprintf("\033[20GX\033[31G|\033[43GY\033[54G|\033[66GZ\n\n");
UARTprintf("Accel\033[8G|\033[31G|\033[54G|\n\n");
UARTprintf("Gyro\033[8G|\033[31G|\033[54G|\n\n");
UARTprintf("Mag\033[8G|\033[31G|\033[54G|\n\n");
UARTprintf("\n\033[20GRoll\033[31G|\033[43GPitch\033[54G|\033[66GYaw\n\n");
UARTprintf("Eulers\033[8G|\033[31G|\033[54G|\n\n");
UARTprintf("\n\033[17GQ1\033[26G|\033[35GQ2\033[44G|\033[53GQ3\033[62G|"
"\033[71GQ4\n\n");
UARTprintf("Q\033[8G|\033[26G|\033[44G|\033[62G|\n\n");
//
// Enable blinking indicates config finished successfully
//
RGBBlinkRateSet(1.0f);
//
// Initialize convenience pointers that clean up and clarify the code
// meaning. We want all the data in a single contiguous array so that
// we can make our pretty printing easier later.
//
pfAccel = pfData;
pfGyro = pfData + 3;
pfMag = pfData + 6;
pfEulers = pfData + 9;
pfQuaternion = pfData + 12;
}
int main(void)
{
/*Set the clocking to directly run from the crystal at 8MHz*/
SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_XTAL_8MHZ);
/* Set the clock for the GPIO Ports */
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
/*Enable ADC Peripheral*/
SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
/* Set the type of the GPIO Pins required */
GPIOPinTypeGPIOOutput(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5 | GPIO_PIN_6 | GPIO_PIN_7); //initialiing the on-board LEDs as outputs
GPIOPinTypeGPIOOutput(digital2base, digital2pin);
GPIOPinTypeGPIOOutput(digital3base, digital3pin);
GPIOPinTypeGPIOOutput(digital4base, digital4pin);
GPIOPinTypeGPIOOutput(digital5base, digital5pin);
GPIOPinTypeGPIOOutput(digital6base, digital6pin);
GPIOPinTypeGPIOOutput(digital7base, digital7pin);
GPIOPinTypeGPIOOutput(digital8base, digital8pin);
GPIOPinTypeGPIOOutput(digital9base, digital9pin);
GPIOPinTypeGPIOOutput(digital10base, digital10pin);
GPIOPinTypeGPIOOutput(digital11base, digital11pin);
GPIOPinTypeGPIOOutput(digital12base, digital12pin);
/* Set the GPIO Pins for the LCD as output */
GPIOPinTypeGPIOOutput(GPIO_PORTB_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_4| GPIO_PIN_5| GPIO_PIN_6| GPIO_PIN_7);
/*Initialize digital control pins*/
GPIOPinWrite(relaycontrolbase, relaycontrolpin, 0); //relay switch off inside main() function
GPIOPinWrite(speakerbase, speakerpin, 0); //speaker off inside main() function
/* UART config */
InitConsole();
/* Enable is set low */
GPIOPinWrite(GPIO_PORTB_BASE, GPIO_PIN_6, 0);
/* Set up the period for the SysTick timer. The SysTick timer period will
be equal to 1ms.*/
SysTickPeriodSet(SysCtlClockGet()/1000);
/* Enable SysTick. */
SysTickEnable();
ConfigureLCD();
/*WELCOME SCREEN */
UARTprintf("WELCOME\n");
delay(2000);
/*AUTO CALIBRATION OF ACCELEROMETER TO PRESENT STATE ON RESET */
/*start of auto calibration */
/*Configure ADC Peripheral*/
/*Configure ADC Sequence*/
ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_PROCESSOR, 0);
/*Enable ADC sequence*/
ADCSequenceDisable(ADC0_BASE, 0);
SysCtlDelay(SysCtlClockGet()/10);
ADCSequenceEnable(ADC0_BASE, 0);
/*Clear ADC Interrupt*/
ADCIntClear(ADC0_BASE, 0);
IntMasterEnable();
ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CTL_CH1);
ADCSequenceStepConfigure(ADC0_BASE, 0, 1, ADC_CTL_CH3 | ADC_CTL_IE | ADC_CTL_END);
ADCProcessorTrigger(ADC0_BASE, 0);
while(!ADCIntStatus(ADC0_BASE, 0, false))
{
}
ADCIntClear(ADC0_BASE, 0);
unsigned int i= 0;
unsigned long sumx = 0;
unsigned long sumz = 0;
unsigned int xref = 0;
unsigned int zref = 0;
SysCtlDelay(SysCtlClockGet());
for(i=0; i<= 100; i++)
{
SysCtlDelay(SysCtlClockGet()/50);
ADCSequenceDataGet(ADC0_BASE, 0, temp);
sumx = sumx + temp[1];
sumz = sumz + temp[0];
SysCtlDelay(SysCtlClockGet()/50);
}
xref = sumx/101;
zref = sumz/101;
UARTprintf("Xref = \n");
UARTprintf(xref);
delay(3000);
UARTprintf("Yref = \n");
UARTprintf(yref);
delay(3000);
/*end of auto calibration */
/*Configure ADC Peripheral*/
/*Configure ADC Sequence FOR READING JUST THE IR SENSOR*/
ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_ALWAYS, 0); // 0 for taking 8 samples as 6 channels of ADC are involved
/*Enable ADC sequence*/
ADCSequenceDisable(ADC0_BASE, 0);
SysCtlDelay(SysCtlClockGet()/10);
ADCSequenceEnable(ADC0_BASE, 0);
/*Clear ADC Interrupt*/
ADCIntClear(ADC0_BASE, 0);
IntMasterEnable();
/* sensors are monitored on an infinite loop */
while(1)
{
/*Reinitiate blinkcounter*/
blinkcounter = 0;
/*Reading just IR sensor values in a loop */
for(i=0; i<= 5; i++)
{
/*Configure ADC Sequence*/
ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_PROCESSOR, 0);
/*Enable ADC sequence*/
ADCSequenceDisable(ADC0_BASE, 0);
ADCSequenceEnable(ADC0_BASE, 0);
/*Clear ADC Interrupt*/
ADCIntClear(ADC0_BASE, 0);
IntMasterEnable();
ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CTL_CH4 | ADC_CTL_IE | ADC_CTL_END);
ADCProcessorTrigger(ADC0_BASE, 0);
while(!ADCIntStatus(ADC0_BASE, 0, false))
{
}
ADCIntClear(ADC0_BASE, 0);
ADCSequenceDataGet(ADC0_BASE, 0, temp);
if(temp[0] < 1000)
{
blinkcounter++;
}
UARTprintf("IR value %04d\n", temp[0]);
SysCtlDelay(SysCtlClockGet()/5);
}
/*Configure ADC Sample Collection from 4 Channels READ ALL OTHER SENSORS*/
ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CTL_CH0); //button
ADCSequenceStepConfigure(ADC0_BASE, 0, 1, ADC_CTL_CH1); //z axis
ADCSequenceStepConfigure(ADC0_BASE, 0, 2, ADC_CTL_CH3); // x axis
ADCSequenceStepConfigure(ADC0_BASE, 0, 3, ADC_CTL_CH5 | ADC_CTL_IE | ADC_CTL_END); //alcohol
// For ADC Processor Triggering
ADCProcessorTrigger(ADC0_BASE, 0);
while(!ADCIntStatus(ADC0_BASE, 0, false))
{
}
ADCIntClear(ADC0_BASE, 0);
/*assign sensor values to sensor variables */
alcoholsense = temp[3];
xval = temp[2];
zval = temp[1];
butval = temp[0];
UARTprintf("Xval = %04d\n",xval);
SysCtlDelay(SysCtlClockGet()/3);
UARTprintf("Yval = %04d\n", yval);
SysCtlDelay(SysCtlClockGet()/3);
UARTprintf("AlcoholVal = %04d\n",alcoholsense);
SysCtlDelay(SysCtlClockGet()/3);
UARTprintf("ButtonVal %04d\n", butval);
SysCtlDelay(SysCtlClockGet()/3);
/*calculate instataneous deviaton from reference values for head tilting */
deltax = abs(xref - xval);
deltaz = abs(zref - zval);
UARTprintf("Z DELTA = %04d\n", deltaz);
SysCtlDelay(SysCtlClockGet()/3);
UARTprintf("X DELTA = %04d\n", deltax);
SysCtlDelay(SysCtlClockGet()/3);
//Check first for alcohol detection. Completely shutdown the system. Alarm will constantly ring.
if(alcoholsense > 1000)
{
UARTprintf("Alcohol\n");
UARTprintf("Present\n");
delay(1000);
UARTprintf("Alarm\n");
UARTprintf("Triggered\n");
SysCtlDelay(SysCtlClockGet()/2);
alcoholdetected();
}
// Check for eyes being closed or blinking at a very fast rate or partially closed for long.
if(blinkcounter >= 4)
{
UARTprintf("Fatigued State");
delay(2000);
UARTprintf("Alarm Triggered");
delay(1000);
SysCtlDelay(SysCtlClockGet()/2);
alarmState();
}
/*Check for accelerometer alert state*/
/*Reinitiate accelerometer Counter */
counter = 0;
/*If one of the values in head position differs from auto calibrated values, re-sensing is done */
if((deltax >= 70) || (deltaz >= 70))
{
for(count = 0; count <= 10; count++)
{
/*Configure ADC Sequence just for the accelerometer */
ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_PROCESSOR, 0);
/*Enable ADC sequence*/
ADCSequenceDisable(ADC0_BASE, 0);
SysCtlDelay(SysCtlClockGet()/10);
ADCSequenceEnable(ADC0_BASE, 0);
/*Clear ADC Interrupt*/
ADCIntClear(ADC0_BASE, 0);
IntMasterEnable();
ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CTL_CH1);
ADCSequenceStepConfigure(ADC0_BASE, 0, 1, ADC_CTL_CH3 | ADC_CTL_IE | ADC_CTL_END);
ADCProcessorTrigger(ADC0_BASE, 0);
while(!ADCIntStatus(ADC0_BASE, 0, false))
{
}
ADCIntClear(ADC0_BASE, 0);
ADCSequenceDataGet(ADC0_BASE, 0, temp);
deltax = abs(xref - temp[1]);
deltaz = abs(zref - temp[0]);
if((deltax >= 70) || (deltaz >= 70))
{
counter++;
SysCtlDelay(SysCtlClockGet()/5);
}
}
}
if (counter >= 7)
{
UARTprintf("Head Tilted");
delay(2000);
UARTprintf("ALARM Triggered");
SysCtlDelay(SysCtlClockGet()/2);
alarmState();
}
else
{
UARTprintf("NO ALARM DETECTED");
delay(1000);
SysCtlDelay(SysCtlClockGet()/5);
}
}
return 0;
}
//*****************************************************************************
//
// Required by lwIP library to support any host-related timer functions.
//
//*****************************************************************************
void
lwIPHostTimerHandler(void)
{
uint32_t ui32Idx, ui32NewIPAddress;
//
// Get the current IP address.
//
ui32NewIPAddress = lwIPLocalIPAddrGet();
//
// See if the IP address has changed.
//
if(ui32NewIPAddress != g_ui32IPAddress)
{
//
// See if there is an IP address assigned.
//
if(ui32NewIPAddress == 0xffffffff)
{
//
// Indicate that there is no link.
//
UARTprintf("Waiting for link.\n");
}
else if(ui32NewIPAddress == 0)
{
//
// There is no IP address, so indicate that the DHCP process is
// running.
//
UARTprintf("Waiting for IP address.\n");
}
else
{
//
// Display the new IP address.
//
//UARTprintf("IP Address: ");
//DisplayIPAddress(ui32NewIPAddress);
//UARTprintf("\nOpen a browser and enter the IP address.\n");
}
//
// Save the new IP address.
//
g_ui32IPAddress = ui32NewIPAddress;
//
// Turn GPIO off.
//
MAP_GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_1, ~GPIO_PIN_1);
}
//
// If there is not an IP address.
//
if((ui32NewIPAddress == 0) || (ui32NewIPAddress == 0xffffffff))
{
//
// Loop through the LED animation.
//
for(ui32Idx = 1; ui32Idx < 17; ui32Idx++)
{
//
// Toggle the GPIO
//
MAP_GPIOPinWrite(GPIO_PORTN_BASE, GPIO_PIN_1,
(MAP_GPIOPinRead(GPIO_PORTN_BASE, GPIO_PIN_1) ^
GPIO_PIN_1));
SysCtlDelay(120000000/(ui32Idx << 1));
}
}
}
//
// Cmd_ls - This function implements the "ls" command. It opens the current
// directory and enumerates through the contents, and prints a line
// for each item it finds. It shows details such as file attributes,
// time and date, and the file size, along with the name. It shows a
// summary of file sizes at the end along with free space.
//
int
Cmd_ls(int argc, char *argv[])
{
unsigned long ulTotalSize, ulItemCount, ulFileCount, ulDirCount;
FRESULT fresult;
FATFS *pFatFs;
//
// Open the current directory for access.
//
fresult = f_opendir(&g_sDirObject, g_cCwdBuf);
//
// Check for error and return if there is a problem.
//
if(fresult != FR_OK)
{
return(fresult);
}
ulTotalSize = 0;
ulFileCount = 0;
ulDirCount = 0;
ulItemCount = 0;
//
// Give an extra blank line before the listing.
//
UARTprintf("\n");
//
// Enter loop to enumerate through all directory entries.
//
for(;;)
{
//
// Read an entry from the directory.
//
fresult = f_readdir(&g_sDirObject, &g_sFileInfo);
//
// Check for error and return if there is a problem.
//
if(fresult != FR_OK)
{
return(fresult);
}
//
// If the file name is blank, then this is the end of the
// listing.
//
if(!g_sFileInfo.fname[0])
{
break;
}
//
// Print the entry information on a single line with formatting
// to show the attributes, date, time, size, and name.
//
UARTprintf("%c%c%c%c%c %u/%02u/%02u %02u:%02u %9u %s\n",
(g_sFileInfo.fattrib & AM_DIR) ? (uint32_t)'D' : (uint32_t)'-',
(g_sFileInfo.fattrib & AM_RDO) ? (uint32_t)'R' : (uint32_t)'-',
(g_sFileInfo.fattrib & AM_HID) ? (uint32_t)'H' : (uint32_t)'-',
(g_sFileInfo.fattrib & AM_SYS) ? (uint32_t)'S' : (uint32_t)'-',
(g_sFileInfo.fattrib & AM_ARC) ? (uint32_t)'A' : (uint32_t)'-',
(uint32_t)((g_sFileInfo.fdate >> 9) + 1980),
(uint32_t)((g_sFileInfo.fdate >> 5) & 15),
(uint32_t)(g_sFileInfo.fdate & 31),
(uint32_t)((g_sFileInfo.ftime >> 11)),
(uint32_t)((g_sFileInfo.ftime >> 5) & 63),
(uint32_t)(g_sFileInfo.fsize),
g_sFileInfo.fname);
//
// Add the information as a line in the listbox widget.
//
if(ulItemCount < NUM_LIST_STRINGS)
{
usprintf(g_pcFilenames[ulItemCount], "(%c) %12s",
(g_sFileInfo.fattrib & AM_DIR) ? 'D' : 'F',
g_sFileInfo.fname);
}
//
// If the attribute is directory, then increment the directory count.
//
if(g_sFileInfo.fattrib & AM_DIR)
{
ulDirCount++;
}
//
// Otherwise, it is a file. Increment the file count, and
// add in the file size to the total.
//
else
{
ulFileCount++;
ulTotalSize += g_sFileInfo.fsize;
}
//
// Move to the next entry in the item array we use to populate the
// list box.
//
ulItemCount++;
//
// Wait for the UART transmit buffer to empty.
//
// UARTFlushTx(false);
}
//
// Print summary lines showing the file, dir, and size totals.
//
UARTprintf("\n%4u File(s),%10u bytes total\n%4u Dir(s)",
ulFileCount, ulTotalSize, ulDirCount);
//
// Get the free space.
//
fresult = f_getfree("/", &ulTotalSize, &pFatFs);
//
// Check for error and return if there is a problem.
//
if(fresult != FR_OK)
{
return(fresult);
}
//
// Display the amount of free space that was calculated.
//
UARTprintf(", %10uK bytes free\n", ulTotalSize * pFatFs->sects_clust / 2);
//
// Wait for the UART transmit buffer to empty.
//
// UARTFlushTx(false);
//
// Made it to here, return with no errors.
//
return(0);
}
