//*****************************************************************************
//
// This function is called to start an acquisition running. It determines
// which channels are to be logged, enables the ADC sequencers, and computes
// the first RTC match value. This will start the acquisition running.
//
//*****************************************************************************
void
AcquireStart(tConfigState *psConfig)
{
uint32_t ui32Idx, pui32RTC[2], ui32SelectedMask;
//
// Check the parameters
//
ASSERT(psConfig);
if(!psConfig)
{
return;
}
//
// Update the config state pointer, save the selected item mask
//
g_psConfigState = psConfig;
ui32SelectedMask = psConfig->ui16SelectedMask;
//
// Get the logging period from the logger configuration. Split the
// period into seconds and subseconds pieces and save for later use in
// generating RTC match values.
//
g_pui32MatchPeriod[0] = psConfig->ui32Period >> 8;
g_pui32MatchPeriod[1] = (psConfig->ui32Period & 0xFF) << 8;
//
// Determine how many channels are to be logged
//
ui32Idx = ui32SelectedMask;
g_ui32NumItems = 0;
while(ui32Idx)
{
if(ui32Idx & 1)
{
g_ui32NumItems++;
}
ui32Idx >>= 1;
}
//
// Initialize the strip chart manager for a new run. Don't bother with
// the strip chart if we are using viewer mode, or sleep-logging.
//
if((psConfig->ui8Storage != CONFIG_STORAGE_VIEWER) &&
!psConfig->ui32SleepLogging)
{
StripChartMgrInit();
StripChartMgrConfigure(ui32SelectedMask);
}
//
// Configure USB for memory stick if USB storage is chosen
//
if(psConfig->ui8Storage == CONFIG_STORAGE_USB)
{
USBStickOpenLogFile(0);
}
else if(psConfig->ui8Storage == CONFIG_STORAGE_FLASH)
{
//
// Flash storage is to be used, prepare the flash storage module.
// If already sleep-logging, then pass in the saved flash address
// so it does not need to be searched.
//
if(psConfig->ui32SleepLogging)
{
FlashStoreOpenLogFile(psConfig->ui32FlashStore);
}
else
{
//
// Otherwise not sleep logging, so just initialize the flash store,
// this will cause it to search for the starting storage address.
//
FlashStoreOpenLogFile(0);
}
}
//
// Enable the ADC sequencers
//
MAP_ADCSequenceEnable(ADC0_BASE, 0);
MAP_ADCSequenceEnable(ADC1_BASE, 0);
//
// Flush the ADC sequencers to be sure there is no lingering data.
//
MAP_ADCSequenceDataGet(ADC0_BASE, 0, g_pui32ADCData);
MAP_ADCSequenceDataGet(ADC1_BASE, 0, g_pui32ADCData);
//
// Enable ADC interrupts
//
MAP_ADCIntClear(ADC0_BASE, 0);
MAP_ADCIntClear(ADC1_BASE, 0);
MAP_ADCIntEnable(ADC0_BASE, 0);
MAP_IntEnable(INT_ADC0SS0);
//
// If we are not already sleep-logging, then initialize the RTC match.
// If we are sleep logging then this does not need to be set up.
//
if(!psConfig->ui32SleepLogging)
{
//
// Get the current RTC value
//
do
{
pui32RTC[0] = HibernateRTCGet();
pui32RTC[1] = HibernateRTCSSGet();
}
while(pui32RTC[0] != HibernateRTCGet());
//
// Set an initial next match value. Start with the subseconds always
// 0 so the first match value will always be an even multiple of the
// subsecond match. Add 2 seconds to the current RTC just to be clear
// of an imminent rollover. This means that the first match will occur
// between 1 and 2 seconds from now.
//
g_pui32NextMatch[0] = pui32RTC[0] + 2;
g_pui32NextMatch[1] = 0;
//
// Now set the match value
//
HibernateRTCMatchSet(0, g_pui32NextMatch[0]);
HibernateRTCSSMatchSet(0, g_pui32NextMatch[1]);
}
//
// If we are configured to sleep, but not sleeping yet, then enter sleep
// logging mode if allowed.
//
if(psConfig->bSleep && !psConfig->ui32SleepLogging)
{
//
// Allow sleep logging if storing to flash at a period of 1 second
// or greater.
//
if((psConfig->ui8Storage == CONFIG_STORAGE_FLASH) &&
(psConfig->ui32Period >= 0x100))
{
psConfig->ui32SleepLogging = 1;
}
}
//
// Enable the RTC interrupts from the hibernate module
//
HibernateIntClear(HibernateIntStatus(0));
HibernateIntEnable(HIBERNATE_INT_RTC_MATCH_0 | HIBERNATE_INT_PIN_WAKE);
MAP_IntEnable(INT_HIBERNATE);
//
// Logging data should now start running
//
}
int
main(void)
{
char stringbuffer[17];
int distance = 0;
// 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_FPUEnable();
ROM_FPULazyStackingEnable();
ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |
SYSCTL_XTAL_16MHZ);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART3);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_EEPROM0); //This wasn't clear at all. Note to self, everything needs enabling on this chip.
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);
ROM_GPIOPinTypeGPIOInput(GPIO_PORTF_BASE, WAKEPIN);
ROM_GPIOPinTypeGPIOInput(GPIO_PORTA_BASE, REEDPIN);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, V5POWER);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTE_BASE, V3POWER);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, SERVO);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_1);
// ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_2);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_3);
ROM_GPIOPinWrite(GPIO_PORTE_BASE, V3POWER, 0xFF);
#ifdef EASYOPEN
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTF_BASE, GPIO_PIN_0);
#endif
GPIOPinConfigure(GPIO_PA0_U0RX);
GPIOPinConfigure(GPIO_PA1_U0TX);
ROM_GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
GPIOPinConfigure(GPIO_PC6_U3RX);
GPIOPinConfigure(GPIO_PC7_U3TX);
ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_6 | GPIO_PIN_7);
ROM_UARTConfigSetExpClk(UART0_BASE, ROM_SysCtlClockGet(), GPSBAUD,
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE));
ROM_UARTConfigSetExpClk(UART3_BASE, ROM_SysCtlClockGet(), GPSBAUD,
(UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |
UART_CONFIG_PAR_NONE));
ROM_IntEnable(INT_UART0);
ROM_UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
ROM_IntEnable(INT_UART3);
ROM_UARTIntEnable(UART3_BASE, UART_INT_RX | UART_INT_RT);
SysTickPeriodSet(SysCtlClockGet()/10000);
SysTickIntRegister(&ServoDriver);
SysTickIntEnable();
SysTickEnable();
ROM_IntMasterEnable();
GPIOIntTypeSet(GPIO_PORTA_BASE, REEDPIN, GPIO_FALLING_EDGE);
GPIOPinIntClear(GPIO_PORTA_BASE, REEDPIN);
GPIOPinIntEnable(GPIO_PORTA_BASE, REEDPIN);
IntEnable(INT_GPIOA);
// while(1){}
/* SysCtlDelay(SysCtlClockGet()/1000);//Make sure the servo is going to get a pulse soon.
ROM_GPIOPinWrite(GPIO_PORTE_BASE, V5POWER, 0xFF); //Turn on the 5V power to LCD + servo.
SysCtlDelay(SysCtlClockGet()/1000);//Make sure the servo is going to get a pulse soon.*/
EEPROMInit();
initLCD();
LCDCommand(0x0c);
#ifdef LOOPBACKUART
while(1){}
#endif
#ifdef FIRSTRUN //First run, sets the eeprom to have as many tries as is desired.
EEPROMMassErase();
EEPROMProgram(&initialNumTries,eepromAddress,sizeof(initialNumTries));
LCDWriteText("Setup Complete. ", 0, 0);
LCDWriteText("Reflash Firmware", 1, 0);
while (1){} //Don't want to do anything else now.
#endif
EEPROMRead(&numTrieslong,eepromAddress,sizeof(numTrieslong));
// numTries=(int)numTrieslong;
// openLock();
// numTrieslong=0;
if (numTrieslong > initialNumTries-3) //Has already opened once, so just open as needed if stuck.
{
openLock();
numTrieslong--;
EEPROMProgram(&numTrieslong,eepromAddress,sizeof(numTrieslong)); //Decrement EEPROM counter.
}
else
{
distance = getDistance();
if(distance==99999){ //No fix :/
LCDWriteText("Location unknown", 0, 0);
LCDWriteText("Take me outside ", 1, 0);
SysCtlDelay(SysCtlClockGet()); //Waits 3 seconds.
}
else if (distance>NEARENOUGH) //Valid fix, too far away.
{
if ((int)numTrieslong>0) //Any attempts remaining?
{
usnprintf(stringbuffer,17,"Distance: %4dm ",distance);
LCDWriteText(stringbuffer, 0, 0);
numTrieslong--;
// numTries=(int)numTrieslong;
EEPROMProgram(&numTrieslong,eepromAddress,sizeof(numTrieslong)); //Decrement EEPROM counter.
usnprintf(stringbuffer,17,"%2d Attempts left",(int)numTrieslong);
LCDWriteText(stringbuffer, 1, 0);
SysCtlDelay(SysCtlClockGet()*2);
}
else
{
LCDWriteText("Oh dear... ", 0, 0); //Not really sure what to do, hopefully this code never runs.
LCDWriteText("Opening anyway. ", 1, 0);
// numTrieslong=initialNumTries+1;
// EEPROMProgram(&numTrieslong,eepromAddress,sizeof(initialNumTries)); //Set to big value
SysCtlDelay(10*SysCtlClockGet()/3);
openLock();
}
}
else //Found the location!
{
openLock();
numTrieslong=initialNumTries+1;
//numTries=(int)numTrieslong;
EEPROMProgram(&numTrieslong,eepromAddress,sizeof(initialNumTries)); //Lock will now open straight away.
}
}
// BLINK(RED);
HibernateEnableExpClk(SysCtlClockGet());
HibernateGPIORetentionEnable(); //Enables GPIO retention after wake from hibernate.
HibernateClockSelect(HIBERNATE_CLOCK_SEL_RAW);
HibernateWakeSet(HIBERNATE_WAKE_PIN);
HibernateIntRegister(&HibernateInterrupt);
HibernateIntEnable(HIBERNATE_INT_PIN_WAKE);
//BLINK(BLUE);
ROM_GPIOPinWrite(GPIO_PORTE_BASE, V5POWER, 0); //GPIO pins keep state on hibernate, so make sure to power everything else down.
ROM_GPIOPinWrite(GPIO_PORTE_BASE, V3POWER, 0); //GPIO pins keep state on hibernate, so make sure to power everything else down.
ROM_GPIOPinWrite(GPIO_PORTB_BASE, RS|E|D4|D5|D6|D7, 0xFF); //Pull all data pins to LCD high so we're not phantom powering it through ESD diodes.
ROM_GPIOPinWrite(GPIO_PORTF_BASE, SERVO, 0xFF); //Likewise for the servo
SysCtlDelay(SysCtlClockGet()/6);
HibernateRequest();// we want to be looping'n'shit.
while(1){} //Lalala, I'm a sleeping right now.
}
