int readPotentiometer(void)
{
PLIB_ADC_SamplingStart(ADC_ID_1);
while (!PLIB_ADC_ConversionHasCompleted(ADC_ID_1));
return PLIB_ADC_ResultGetByIndex(ADC_ID_1, 0);
}
void IntHandlerDrvAdc(void)
{
//TODO: make sure this corresponds to the Harmony config!!!
int numberSamplesPerInterrupt = 1;
//clear the interrupt flag
PLIB_INT_SourceFlagClear(INT_ID_0, INT_SOURCE_ADC_1);
//get the ADC value
unsigned int potValue = 0;
int i = 0;
for(i=0; i<numberSamplesPerInterrupt; i++)
potValue += PLIB_ADC_ResultGetByIndex(ADC_ID_1, i);
potValue = potValue/numberSamplesPerInterrupt; //the output is a 16-bit int
//convert ADC steps to distance in cm
//unsigned int distance = (unsigned int) (63.404-((double)potValue*0.058)); //cm
unsigned int distance = (unsigned int) (24.952-((double)potValue*0.0227)); //in
//send the value to the queue
sendValToSensorTaskFromISR(&distance);
}
ADC_SAMPLE DRV_ADC_SamplesRead(uint8_t bufIndex)
{
/* Read Result */
return PLIB_ADC_ResultGetByIndex(DRV_ADC_ID_1, bufIndex);
}
