//*****************************************************************************
//
// 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()
{
unsigned long ulIdx;
ulIdx = ulSelectedMask;
g_ulNumItems = 0;
while(ulIdx)
{
if(ulIdx & 1)
{
g_ulNumItems++;
}
ulIdx >>= 1;
}
//USBStickOpenLogFile(0);
ROM_ADCSequenceEnable(ADC0_BASE,SEQUENCER);
//ROM_ADCSequenceDataGet(ADC0_BASE,SEQUENCER,&g_ulADCData[0]);
ROM_ADCIntClear(ADC0_BASE,SEQUENCER);
ROM_ADCIntEnable(ADC0_BASE,SEQUENCER);
ROM_IntEnable(INT_ADC0SS2);
ROM_TimerEnable(TIMER0_BASE, TIMER_A);
//ROM_IntEnable(INT_TIMER1A);
//ROM_TimerIntEnable(TIMER1_BASE, TIMER_TIMA_TIMEOUT);
//ROM_TimerEnable(TIMER1_BASE, TIMER_A);
ROM_IntMasterEnable();
}
//*****************************************************************************
//
//! Initializes the touch screen driver.
//!
//! \param ui32SysClock is the frequency of the system clock.
//!
//! This function initializes the touch screen driver, beginning the process of
//! reading from the touch screen. This driver uses the following hardware
//! resources:
//!
//! - ADC 0 sample sequence 3
//! - Timer 5 subtimer B
//!
//! \return None.
//
//*****************************************************************************
void
TouchScreenInit(uint32_t ui32SysClock)
{
//
// Set the initial state of the touch screen driver's state machine.
//
g_ui32TSState = TS_STATE_INIT;
//
// There is no touch screen handler initially.
//
g_pfnTSHandler = 0;
//
// Enable the peripherals used by the touch screen interface.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER5);
//
// Configure the ADC sample sequence used to read the touch screen reading.
//
ROM_ADCHardwareOversampleConfigure(ADC0_BASE, 4);
ROM_ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_TIMER, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0,
TS_YP_ADC | ADC_CTL_END | ADC_CTL_IE);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
//
// Enable the ADC sample sequence interrupt.
//
ROM_ADCIntEnable(ADC0_BASE, 3);
ROM_IntEnable(INT_ADC0SS3);
//
// Configure the timer to trigger the sampling of the touch screen
// every 2.5 milliseconds.
//
if((HWREG(TIMER5_BASE + TIMER_O_CTL) & TIMER_CTL_TAEN) == 0) {
ROM_TimerConfigure(TIMER5_BASE, (TIMER_CFG_SPLIT_PAIR |
TIMER_CFG_A_PWM |
TIMER_CFG_B_PERIODIC));
}
ROM_TimerPrescaleSet(TIMER5_BASE, TIMER_B, 255);
ROM_TimerLoadSet(TIMER5_BASE, TIMER_B, ((ui32SysClock / 256) / 400) - 1);
TimerControlTrigger(TIMER5_BASE, TIMER_B, true);
//
// Enable the timer. At this point, the touch screen state machine will
// sample and run every 2.5 ms.
//
ROM_TimerEnable(TIMER5_BASE, TIMER_B);
}
void BattSense_init(void)
{
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOB);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC1);
ROM_GPIOPinTypeADC(GPIO_PORTB_BASE, GPIO_PIN_4);
ROM_ADCHardwareOversampleConfigure(ADC1_BASE, 64);
ROM_ADCSequenceConfigure(ADC1_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);
ROM_ADCSequenceStepConfigure(ADC1_BASE, 3, 0, ADC_CTL_END | ADC_CTL_CH10 | ADC_CTL_IE);
ROM_ADCSequenceEnable(ADC1_BASE, 3);
ADCIntRegister(ADC1_BASE, 3, &BattSenseISR);
ROM_ADCIntEnable(ADC1_BASE, 3);
battery_Runtimeout(&BattSenseTimerTimout, 10000);
}
void LightSensorInit(void) {
// Set up pin as ADC
ROM_GPIOPinTypeADC(LIGHTSENSOR_PORT, LIGHTSENSOR_PIN);
ROM_ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_PROCESSOR, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0, ADC_CTL_CH0 | ADC_CTL_IE
| ADC_CTL_END);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
ROM_ADCIntEnable(ADC0_BASE, 3);
ROM_ADCIntClear(ADC0_BASE, 3);
ADCIntRegister(ADC0_BASE, 3, LightSensorIntHandler);
}
//*****************************************************************************
//
// Initializes the ADC.
//
//*****************************************************************************
void
ADCInit(void)
{
//
// Set the ADC speed to 1 Msps.
//
ROM_SysCtlADCSpeedSet(SYSCTL_ADCSPEED_1MSPS);
//
// Configure the GPIOs used with the analog inputs.
//
GPIOPinTypeADC(ADC_POSITION_PORT, ADC_POSITION_PIN);
GPIOPinTypeADC(ADC_CURRENT_PORT, ADC_CURRENT_PIN);
GPIOPinTypeADC(ADC_VBUS_PORT, ADC_VBUS_PIN);
GPIOPinTypeADC(ADC_VBOOTA_PORT, ADC_VBOOTA_PIN);
GPIOPinTypeADC(ADC_VBOOTB_PORT, ADC_VBOOTB_PIN);
//
// Configure the ADC sample sequence that is triggered by PWM
// generator 2
//
ROM_ADCSequenceConfigure(ADC0_BASE, 0, ADC_TRIGGER_PWM0, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 0, 0, ADC_CURRENT_CH);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 0, 1, ADC_VBUS_CH);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 0, 2, ADC_POSITION_CH);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 0, 3,
(ADC_CTL_TS | ADC_CTL_IE | ADC_CTL_END));
ROM_ADCSequenceEnable(ADC0_BASE, 0);
//
// Enable interrupts
//
ROM_ADCIntEnable(ADC0_BASE, 0);
ROM_IntEnable(INT_ADC0SS0);
//
// Set the zero current to indicate that the initial sampling has just
// begun.
//
g_usCurrentZero = 0xffff;
}
void IRDetector_init(void)
{
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
ROM_GPIOPinTypeGPIOOutput(GPIO_PORTD_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
ROM_GPIOPinWrite(GPIO_PORTD_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3, 0x00);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_GPIOPinTypeADC(GPIO_PORTE_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
ROM_ADCHardwareOversampleConfigure(ADC0_BASE, 32);
ROM_ADCSequenceConfigure(ADC0_BASE, 2, ADC_TRIGGER_PROCESSOR, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 2, 0, ADC_CTL_END | ADC_CTL_CH0 | ADC_CTL_IE); //PE3, enable interrupt
ROM_ADCSequenceEnable(ADC0_BASE, 2);
ADCIntRegister(ADC0_BASE, 2, &IR_Detector_ISR);
ROM_ADCIntEnable(ADC0_BASE, 2);
ADC_Step = 0;
TURN_ON_IRD1();
ir_Runtimeout(&IR_Timer_Timeout, 1);
}
//*****************************************************************************
//
//! Initializes the touch screen driver.
//!
//! This function initializes the touch screen driver, beginning the process of
//! reading from the touch screen. This driver uses the following hardware
//! resources:
//!
//! - ADC sample sequence 3
//! - Timer 1 subtimer A
//!
//! \return None.
//
//*****************************************************************************
void
TouchScreenInit(void)
{
//
// Set the initial state of the touch screen driver's state machine.
//
g_ulTSState = TS_STATE_INIT;
//
// Determine which calibration parameter set we will be using.
//
g_plParmSet = g_lTouchParameters[SET_NORMAL];
if(g_eDaughterType == DAUGHTER_SRAM_FLASH)
{
//
// If the SRAM/Flash daughter board is present, select the appropriate
// calibration parameters and reading threshold value.
//
g_plParmSet = g_lTouchParameters[SET_SRAM_FLASH];
g_sTouchMin = 40;
}
else if(g_eDaughterType == DAUGHTER_FPGA)
{
//
// If the FPGA daughter board is present, select the appropriate
// calibration parameters and reading threshold value.
//
g_plParmSet = g_lTouchParameters[SET_FPGA];
g_sTouchMin = 70;
}
//
// There is no touch screen handler initially.
//
g_pfnTSHandler = 0;
//
// Enable the peripherals used by the touch screen interface.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_SysCtlPeripheralEnable(TS_P_PERIPH);
ROM_SysCtlPeripheralEnable(TS_N_PERIPH);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
//
// Configure the ADC sample sequence used to read the touch screen reading.
//
ROM_ADCHardwareOversampleConfigure(ADC0_BASE, 4);
ROM_ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_TIMER, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0,
ADC_CTL_CH_YP | ADC_CTL_END | ADC_CTL_IE);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
//
// Enable the ADC sample sequence interrupt.
//
ROM_ADCIntEnable(ADC0_BASE, 3);
ROM_IntEnable(INT_ADC0SS3);
//
// Configure the GPIOs used to drive the touch screen layers.
//
ROM_GPIOPinTypeGPIOOutput(TS_P_BASE, TS_XP_PIN | TS_YP_PIN);
//
// If no daughter board or one which does not rewire the touchscreen
// interface is installed, set up GPIOs to drive the XN and YN signals.
//
if((g_eDaughterType != DAUGHTER_SRAM_FLASH) &&
(g_eDaughterType != DAUGHTER_FPGA))
{
ROM_GPIOPinTypeGPIOOutput(TS_N_BASE, TS_XN_PIN | TS_YN_PIN);
}
ROM_GPIOPinWrite(TS_P_BASE, TS_XP_PIN | TS_YP_PIN, 0x00);
if(g_eDaughterType == DAUGHTER_SRAM_FLASH)
{
HWREGB(LCD_CONTROL_CLR_REG) = LCD_CONTROL_XN | LCD_CONTROL_YN;
}
else if(g_eDaughterType == DAUGHTER_FPGA)
{
HWREGH(LCD_FPGA_CONTROL_CLR_REG) = LCD_CONTROL_XN | LCD_CONTROL_YN;
}
else
{
ROM_GPIOPinWrite(TS_N_BASE, TS_XN_PIN | TS_YN_PIN, 0x00);
}
//
// See if the ADC trigger timer has been configured, and configure it only
// if it has not been configured yet.
//
if((HWREG(TIMER1_BASE + TIMER_O_CTL) & TIMER_CTL_TAEN) == 0)
{
//
// Configure the timer to trigger the sampling of the touch screen
// every millisecond.
//
ROM_TimerConfigure(TIMER1_BASE, (TIMER_CFG_SPLIT_PAIR |
TIMER_CFG_A_PERIODIC | TIMER_CFG_B_PERIODIC));
ROM_TimerLoadSet(TIMER1_BASE, TIMER_A,
(ROM_SysCtlClockGet() / 1000) - 1);
ROM_TimerControlTrigger(TIMER1_BASE, TIMER_A, true);
//
// Enable the timer. At this point, the touch screen state machine
// will sample and run once per millisecond.
//
ROM_TimerEnable(TIMER1_BASE, TIMER_A);
}
}
//*****************************************************************************
//
//! Initializes the touch screen driver.
//!
//! This function initializes the touch screen driver, beginning the process of
//! reading from the touch screen. This driver uses the following hardware
//! resources:
//!
//! - ADC sample sequence 3
//! - Timer 1 subtimer A
//!
//! \return None.
//
//*****************************************************************************
void
TouchScreenInit(void)
{
//
// Set the initial state of the touch screen driver's state machine.
//
g_ulTSState = TS_STATE_INIT;
//
// There is no touch screen handler initially.
//
g_pfnTSHandler = 0;
//
// Enable the peripherals used by the touch screen interface.
//
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
ROM_SysCtlPeripheralEnable(TS_P_PERIPH);
ROM_SysCtlPeripheralEnable(TS_N_PERIPH);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER1);
//
// Configure the ADC sample sequence used to read the touch screen reading.
//
ROM_ADCHardwareOversampleConfigure(ADC0_BASE, 4);
ROM_ADCSequenceConfigure(ADC0_BASE, 3, ADC_TRIGGER_TIMER, 0);
ROM_ADCSequenceStepConfigure(ADC0_BASE, 3, 0,
ADC_CTL_CH_YP | ADC_CTL_END | ADC_CTL_IE);
ROM_ADCSequenceEnable(ADC0_BASE, 3);
//
// Enable the ADC sample sequence interrupt.
//
ROM_ADCIntEnable(ADC0_BASE, 3);
ROM_IntEnable(INT_ADC0SS3);
//
// Configure the GPIOs used to drive the touch screen layers.
//
ROM_GPIOPinTypeGPIOOutput(TS_P_BASE, TS_XP_PIN | TS_YP_PIN);
ROM_GPIOPinTypeGPIOOutput(TS_N_BASE, TS_XN_PIN | TS_YN_PIN);
ROM_GPIOPinWrite(TS_P_BASE, TS_XP_PIN | TS_YP_PIN, 0x00);
ROM_GPIOPinWrite(TS_N_BASE, TS_XN_PIN | TS_YN_PIN, 0x00);
//
// See if the ADC trigger timer has been configured, and configure it only
// if it has not been configured yet.
//
if((HWREG(TIMER1_BASE + TIMER_O_CTL) & TIMER_CTL_TAEN) == 0)
{
//
// Configure the timer to trigger the sampling of the touch screen
// every millisecond.
//
ROM_TimerConfigure(TIMER1_BASE, (TIMER_CFG_SPLIT_PAIR |
TIMER_CFG_A_PERIODIC | TIMER_CFG_B_PERIODIC));
ROM_TimerLoadSet(TIMER1_BASE, TIMER_A, (SysCtlClockGet() / 1000) - 1);
ROM_TimerControlTrigger(TIMER1_BASE, TIMER_A, true);
//
// Enable the timer. At this point, the touch screen state machine
// will sample and run once per millisecond.
//
ROM_TimerEnable(TIMER1_BASE, TIMER_A);
}
}
