Hello every one,
We recently acquired a few precision adcs,and i need to give the signals exact timing.
I have made a delay function which gives delay in nano seconds,but i always get stuck in the ISR which handles the timer interrupts while debugging.
I cant see how the flag overflows as it is getting stuck there.
Here is my delay function.
unsigned long adc_counter = 0;
LDD_TDeviceData *adcdelaytimer;
LDD_TError timerError;
/*
* Description: Function provides delay in nanoseconds.
* Parameters: unsigned int.
* Return Value: Nothing.
* Minimum time : approx 0.1 microseconds(100 ns)
*/
void adc_delay(unsigned int a)
{
adcdelaytimer = ADC_timer_Init(NULL);
timerError = ADC_timer_Enable(adcdelaytimer);
while(adc_counter < a)
{
;
}
timerError = ADC_timer_Disable(adcdelaytimer);
ADC_timer_Disable(adcdelaytimer);
adc_counter = 0;
}
events.c
void ADC_timer_OnCounterRestart(LDD_TUserData *UserDataPtr)
{
/* Write your code here ... */
adc_counter++;
}
And i keep getting stuck inside this function:
PE_ISR(ADC_timer_Interrupt)
{
/* {Default RTOS Adapter} ISR parameter is passed through the global variable */
ADC_timer_TDeviceDataPtr DeviceDataPrv = INT_FTM0__DEFAULT_RTOS_ISRPARAM;
LDD_TEventMask State = 0U;
if ((FTM_PDD_GetOverflowInterruptFlag(FTM0_BASE_PTR)) != 0U) { /* Is the overflow interrupt flag pending? */
State |= LDD_TIMERUNIT_ON_COUNTER_RESTART; /* and set mask */
}
State &= DeviceDataPrv->EnEvents; /* Handle only enabled interrupts */
if (State & LDD_TIMERUNIT_ON_COUNTER_RESTART) { /* Is the overflow interrupt flag pending? */
FTM_PDD_ClearOverflowInterruptFlag(FTM0_BASE_PTR); /* Clear flag */
ADC_timer_OnCounterRestart(DeviceDataPrv->UserDataPtr); /* Invoke OnCounterRestart event */
}
}
Any help please....
