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
}
/**
* /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
}
/*
** Timer 2 Interrupt Service Routine
*/
static void Timer2Isr(void)
{
static unsigned int index = 0;
/* Clear the status of the interrupt flags */
DMTimerIntStatusClear(SOC_DMTIMER_2_REGS, DMTIMER_INT_OVF_EN_FLAG);
tmr2Flag = TRUE;
DMTimerCounterSet(SOC_DMTIMER_2_REGS, timerCount[index++%10]);
DMTimerEnable(SOC_DMTIMER_2_REGS);
}
unsigned int SysTimer(unsigned int flag)
{
unsigned int timeInTicks=0;
if(flag)
{
DMTimerCounterSet(SOC_DMTIMER_7_REGS, 0);
DMTimerEnable(SOC_DMTIMER_7_REGS);
}
else
{
DMTimerDisable(SOC_DMTIMER_7_REGS);
timeInTicks = DMTimerCounterGet(SOC_DMTIMER_7_REGS);
}
return timeInTicks;
}
/******************************************************************************
** 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);
}
/*
** 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);
}
static void TouchScreenIsr()
{
unsigned int wordsLeft = 0;
unsigned int status;
unsigned int arr_x[5] = {0,0,0,0,0};
unsigned int arr_y[5] = {0,0,0,0,0};
unsigned int x_data = 0;
unsigned int y_data = 0;
unsigned int i = 0;
unsigned int sum = 0;
status = TSCADCIntStatus(TSC_ADC_INSTANCE);
if(status & TSCADC_FIFO1_THRESHOLD_INT)
{
wordsLeft = TSCADCFIFOWordCountRead(TSC_ADC_INSTANCE, TSCADC_FIFO_0);
while(wordsLeft)
{
x_data = TSCADCFIFOADCDataRead(TSC_ADC_INSTANCE, TSCADC_FIFO_0);
arr_x[i++] = x_data;
wordsLeft = TSCADCFIFOWordCountRead(TSC_ADC_INSTANCE, TSCADC_FIFO_0);
}
sum = arr_x[1] + arr_x[2] + arr_x[3];
sum = sum / 3;
x_data = sum;
wordsLeft = TSCADCFIFOWordCountRead(TSC_ADC_INSTANCE, TSCADC_FIFO_1);
i = 0;
while(wordsLeft)
{
y_data = TSCADCFIFOADCDataRead(TSC_ADC_INSTANCE, TSCADC_FIFO_1);
arr_y[i++] = y_data;
wordsLeft = TSCADCFIFOWordCountRead(TSC_ADC_INSTANCE, TSCADC_FIFO_1);
}
sum = arr_y[1] + arr_y[2] + arr_y[3];
sum = sum / 3;
y_data = sum;
}
x_val[Index] = x_data;
y_val[Index] = y_data;
Index = (Index + 0x01) & 0x01;
/* Load the counter with the initial count value */
DMTimerCounterSet(SOC_DMTIMER_2_REGS, 0);
/* Start the DMTimer */
DMTimerEnable(SOC_DMTIMER_2_REGS);
TSCADCIntStatusClear(TSC_ADC_INSTANCE, TSCADC_FIFO1_THRESHOLD_INT);
IsTSPress = 1;
StepEnable();
}
/*
** ISR for Touch Screen
*/
static void TouchScreenIsr(void)
{
volatile unsigned int wordsLeft = 0;
unsigned int status;
unsigned int i = 0;
unsigned int prevVal_x = 0xFFFFFFFF;
unsigned int prevVal_y = 0xFFFFFFFF;
unsigned int currDiff_x;
unsigned int currDiff_y;
unsigned int prevDiff_x = 0xFFFFFFFF;
unsigned int prevDiff_y = 0xFFFFFFFF;
unsigned int readx1;
unsigned int ready1;
status = TSCADCIntStatus(SOC_ADC_TSC_0_REGS);
wordsLeft = TSCADCFIFOWordCountRead(SOC_ADC_TSC_0_REGS, TSCADC_FIFO_1);
if(status & TSCADC_FIFO1_THRESHOLD_INT)
{
for (i = 0; i < wordsLeft; i++)
{
readx1 = TSCADCFIFOADCDataRead(SOC_ADC_TSC_0_REGS, TSCADC_FIFO_0);
readx1 = readx1 & 0xfff;
if (readx1 > prevVal_x)
{
currDiff_x = readx1 - prevVal_x;
}
else
{
currDiff_x = prevVal_x - readx1;
}
if (currDiff_x < prevDiff_x)
{
prevDiff_x = currDiff_x;
xdata = readx1;
}
prevVal_x = readx1;
ready1 = TSCADCFIFOADCDataRead(SOC_ADC_TSC_0_REGS, TSCADC_FIFO_1);
ready1 &= 0xfff;
if (ready1 > prevVal_y)
{
currDiff_y = ready1 - prevVal_y;
}
else
{
currDiff_y = prevVal_y - ready1;
}
if (currDiff_y < prevDiff_y)
{
prevDiff_y = currDiff_y;
ydata = ready1;
}
prevVal_y = ready1;
wordsLeft = TSCADCFIFOWordCountRead(SOC_ADC_TSC_0_REGS, TSCADC_FIFO_1);
}
x_data[dbidx] = xdata;
y_data[dbidx] = ydata;
dbidx = (dbidx + 1) & 0x01;
}
/* Restart the timer counter */
DMTimerCounterSet(SOC_DMTIMER_3_REGS, 0);
DMTimerEnable(SOC_DMTIMER_3_REGS);
//TSCADCIntStatusClear(SOC_ADC_TSC_0_REGS, TSCADC_FIFO1_THRESHOLD_INT);
TSCADCIntStatusClear(SOC_ADC_TSC_0_REGS, TSCADC_FIFO1_THRESHOLD_INT |
TSCADC_ASYNC_HW_PEN_EVENT_INT |
TSCADC_SYNC_PEN_EVENT_INT |
TSCADC_FIFO0_UNDER_FLOW_INT |
TSCADC_FIFO1_UNDER_FLOW_INT |
TSCADC_END_OF_SEQUENCE_INT |
TSCADC_FIFO0_THRESHOLD_INT |
TSCADC_FIFO0_OVER_RUN_INT |
TSCADC_FIFO1_OVER_RUN_INT |
TSCADC_OUT_OF_RANGE_INT |
TSCADC_PEN_UP_EVENT_INT);
IsTSPress = 1;
touchRelease = 0;
StepEnable();
}
/*
** Starts the Timer
*/
void Timer6Start(void)
{
/* Start the DMTimer */
DMTimerEnable(SOC_DMTIMER_6_REGS);
}
