void Sysdelay(unsigned int milliSec)
{
#ifdef DELAY_USE_INTERRUPTS
unsigned int countVal = TIMER_OVERFLOW - (milliSec * TIMER_1MS_COUNT);
DMTimerCounterSet(SOC_DMTIMER_7_REGS, countVal);
flagIsr = FALSE;
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_7_REGS, DMTIMER_INT_OVF_EN_FLAG);
/* Start the DMTimer */
DMTimerEnable(SOC_DMTIMER_7_REGS);
while(FALSE == flagIsr) ;
/* Disable the DMTimer interrupts */
DMTimerIntDisable(SOC_DMTIMER_7_REGS, DMTIMER_INT_OVF_EN_FLAG);
#else
while(milliSec != 0)
{
DMTimerCounterSet(SOC_DMTIMER_7_REGS, 0);
DMTimerEnable(SOC_DMTIMER_7_REGS);
while(DMTimerCounterGet(SOC_DMTIMER_7_REGS) < TIMER_1MS_COUNT);
DMTimerDisable(SOC_DMTIMER_7_REGS);
milliSec--;
}
#endif
}
/*
** DMTimer interrupt service routine. This will send a character to serial
** console.
*/
static void DMTimerIsr(void)
{
/* Disable the DMTimer interrupts */
DMTimerIntDisable(SOC_DMTIMER_2_REGS, DMTIMER_INT_OVF_EN_FLAG);
/* Clear the status of the interrupt flags */
DMTimerIntStatusClear(SOC_DMTIMER_2_REGS, DMTIMER_INT_OVF_IT_FLAG);
flagIsr = 1;
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_2_REGS, DMTIMER_INT_OVF_EN_FLAG);
}
/******************************************************************************
** FUNCTION DEFINITIONS
*******************************************************************************/
int main(void)
{
/* This function will enable clocks for the DMTimer2 instance */
DMTimer2ModuleClkConfig();
/* Initialize the UART console */
ConsoleUtilsInit();
/* Select the console type based on compile time check */
ConsoleUtilsSetType(CONSOLE_UART);
/* Enable IRQ in CPSR */
IntMasterIRQEnable();
/* Register DMTimer2 interrupts on to AINTC */
DMTimerAintcConfigure();
/* Perform the necessary configurations for DMTimer */
DMTimerSetUp();
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_2_REGS, DMTIMER_INT_OVF_EN_FLAG);
ConsoleUtilsPrintf("Tencounter: ");
/* Start the DMTimer */
DMTimerEnable(SOC_DMTIMER_2_REGS);
while(cntValue)
{
if(flagIsr == 1)
{
ConsoleUtilsPrintf("\b%d",(cntValue - 1));
cntValue--;
flagIsr = 0;
}
}
/* Stop the DMTimer */
DMTimerDisable(SOC_DMTIMER_2_REGS);
PRINT_STATUS(S_PASS);
/* Halt the program */
while(1);
}
/**
* /brief This function starts the timer.
*
* /milliSec Maximum value = TIMER_OVERFLOW/TIMER_1MS_COUNT.
*
* /NOTE SysDelay functionality cannot be used till SysStopTimer is called.
*/
void SysStartTimer(unsigned int milliSec)
{
#ifdef DELAY_USE_INTERRUPTS
unsigned int countVal = TIMER_OVERFLOW - (milliSec * TIMER_1MS_COUNT);
DMTimerCounterSet(SOC_DMTIMER_7_REGS, countVal);
flagIsr = FALSE;
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_7_REGS, DMTIMER_INT_OVF_EN_FLAG);
/* Start the DMTimer */
DMTimerEnable(SOC_DMTIMER_7_REGS);
#else
DMTimerCounterSet(SOC_DMTIMER_7_REGS, 0);
DMTimerEnable(SOC_DMTIMER_7_REGS);
flagIsr = milliSec;
#endif
}
/*
** Configure and start the Timer
*/
static void TimerSetupAndEnable(void)
{
/* This function will enable clocks for the DMTimer2 instance */
DMTimer2ModuleClkConfig();
/* Load the counter with the initial count value */
DMTimerCounterSet(TIMER_INST_BASE, TIMER_INITIAL_COUNT);
/* Load the load register with the reload count value */
DMTimerReloadSet(TIMER_INST_BASE, TIMER_RLD_COUNT);
/* Configure the DMTimer for Auto-reload and compare mode */
DMTimerModeConfigure(TIMER_INST_BASE, DMTIMER_AUTORLD_NOCMP_ENABLE);
/* Enable the DMTimer interrupts */
DMTimerIntEnable(TIMER_INST_BASE, DMTIMER_INT_OVF_EN_FLAG);
/* Start the DMTimer */
DMTimerEnable(TIMER_INST_BASE);
IntSystemEnable(TIMER_INT_NUM);
}
/*
** Initializes the touch screen
*/
void InitTouchScreen(void)
{
unsigned int i;
/* TSC clock config */
TSCADCModuleClkConfig();
/* TSC pin mux */
TSCADCPinMuxSetUp();
/* Timer3 Clock config */
DMTimer3ModuleClkConfig();
/* configures ADC to 3Mhz */
TSCADCConfigureAFEClock(SOC_ADC_TSC_0_REGS, 24000000, 3000000);
/* Enable Transistor bias */
TSCADCTSTransistorConfig(SOC_ADC_TSC_0_REGS, TSCADC_TRANSISTOR_ENABLE);
/* Map hardware event to Pen Touch IRQ */
TSCADCHWEventMapSet(SOC_ADC_TSC_0_REGS, TSCADC_PEN_TOUCH);
/* Set 4 Wire or 5 wire touch screen mode */
TSCADCTSModeConfig(SOC_ADC_TSC_0_REGS, TSCADC_FOUR_WIRE_MODE);
TSCADCStepIDTagConfig(SOC_ADC_TSC_0_REGS, 1);
/* Disable Write Protection of Step Configuration regs*/
TSCADCStepConfigProtectionDisable(SOC_ADC_TSC_0_REGS);
/* Configure ADC to Single ended operation mode */
TSCADCIdleStepOperationModeControl(SOC_ADC_TSC_0_REGS,
TSCADC_SINGLE_ENDED_OPER_MODE);
/* Configure reference volatage and input to idlestep */
TSCADCIdleStepConfig(SOC_ADC_TSC_0_REGS, TSCADC_NEGATIVE_REF_VSSA,
TSCADC_POSITIVE_INP_CHANNEL1, TSCADC_NEGATIVE_INP_ADCREFM,
TSCADC_POSITIVE_REF_VDDA);
/* Configure the Analog Supply to Touch screen */
TSCADCIdleStepAnalogSupplyConfig(SOC_ADC_TSC_0_REGS, TSCADC_XPPSW_PIN_OFF,
TSCADC_XNPSW_PIN_OFF, TSCADC_YPPSW_PIN_OFF);
/*
**Configure the Analong Ground of Touch screen.
*/
TSCADCIdleStepAnalogGroundConfig(SOC_ADC_TSC_0_REGS, TSCADC_XNNSW_PIN_OFF,
TSCADC_YPNSW_PIN_ON, TSCADC_YNNSW_PIN_ON,
TSCADC_WPNSW_PIN_OFF);
/* Configure ADC to Single ended operation mode */
TSCADCChargeStepOperationModeControl(SOC_ADC_TSC_0_REGS,
TSCADC_SINGLE_ENDED_OPER_MODE);
/* Configure reference volatage and input to charge step*/
TSCADCChargeStepConfig(SOC_ADC_TSC_0_REGS, TSCADC_NEGATIVE_REF_XNUR,
TSCADC_POSITIVE_INP_CHANNEL2, TSCADC_NEGATIVE_INP_CHANNEL2,
TSCADC_POSITIVE_REF_XPUL);
/* Configure the Analog Supply to Touch screen */
TSCADCChargeStepAnalogSupplyConfig(SOC_ADC_TSC_0_REGS, TSCADC_XPPSW_PIN_ON,
TSCADC_XNPSW_PIN_OFF, TSCADC_XPPSW_PIN_OFF);
/* Configure the Analong Ground to Touch screen */
TSCADCChargeStepAnalogGroundConfig(SOC_ADC_TSC_0_REGS, TSCADC_XNNSW_PIN_OFF,
TSCADC_YPNSW_PIN_OFF, TSCADC_YNNSW_PIN_ON,
TSCADC_WPNSW_PIN_OFF);
TSCADCTSChargeStepOpenDelayConfig(SOC_ADC_TSC_0_REGS, 0x200);
for(i = 0; i < SAMPLES; i++)
{
StepConfigX(i);
TSCADCTSStepOpenDelayConfig(SOC_ADC_TSC_0_REGS, i, 0x98);
}
for(i = SAMPLES; i < (2 * SAMPLES); i++)
{
StepConfigY(i);
TSCADCTSStepOpenDelayConfig(SOC_ADC_TSC_0_REGS, i, 0x98);
}
/* Configure FIFO1 threshold value */
TSCADCFIFOIRQThresholdLevelConfig(SOC_ADC_TSC_0_REGS, TSCADC_FIFO_1, 5);
IsTSPress = 0;
touchRelease = 0;
/* timer setup for touch screen */
IntPrioritySet(SYS_INT_TINT3, 0, AINTC_HOSTINT_ROUTE_IRQ);
IntSystemEnable(SYS_INT_TINT3);
IntRegister(SYS_INT_TINT3, Timer3Isr);
DMTimerModeConfigure(SOC_DMTIMER_3_REGS, DMTIMER_ONESHOT_CMP_ENABLE);
DMTimerReloadSet(SOC_DMTIMER_3_REGS, 0xffffffff);
DMTimerCompareSet(SOC_DMTIMER_3_REGS, 0xfffff);
DMTimerIntStatusClear(SOC_DMTIMER_3_REGS, DMTIMER_INT_MAT_EN_FLAG);
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_3_REGS, DMTIMER_INT_MAT_EN_FLAG);
/* Interrupt register */
TouchIntEnable();
/* enable touch */
TouchEnable();
}
static inline void
rmpi_timer_interrupt_on (void)
{
DMTimerIntEnable(SOC_DMTIMER_4_REGS, DMTIMER_INT_OVF_EN_FLAG);
}
/*
** Enables the Timer6 Interrupts
*/
void Timer6IntEnable(void)
{
/* Enable the DMTimer interrupts */
DMTimerIntEnable(SOC_DMTIMER_6_REGS, DMTIMER_INT_OVF_EN_FLAG);
}
