// auxIo, see MUX3 Register (Offset = 3h) [reset = X]
// auxIo, sensor controller engine IO, will map to M3's IO automatilcally
// for DIO23, auxIO7, the value should be 80h, 0x80
uint16_t OneShotADC(uint8_t auxIo)
{
static __root uint16_t retval = 0xABBA;
// Enable clock for ADC digital and analog interface (not currently enabled in driver)
AUXWUCClockEnable(AUX_WUC_MODCLKEN0_ANAIF_M|AUX_WUC_MODCLKEN0_AUX_ADI4_M);
// Connect AUX IO7 (DIO23) as analog input. Light sensor on SmartRF06EB
AUXADCSelectInput(auxIo);
// Set up ADC
AUXADCEnableSync(AUXADC_REF_FIXED, AUXADC_SAMPLE_TIME_2P7_US, AUXADC_TRIGGER_MANUAL);
// Disallow STANDBY mode while using the ADC.
Power_setConstraint(Power_SB_DISALLOW);
// Trigger ADC sampling
AUXADCGenManualTrigger();
retval = AUXADCReadFifo();
// Disable ADC
AUXADCDisable();
// Allow STANDBY mode again
Power_releaseConstraint(Power_SB_DISALLOW);
return retval;
}
void adcIsr(UArg a0) {
// Pop sample from FIFO to allow clearing ADC_IRQ event
singleSample = AUXADCReadFifo();
// Clear ADC_IRQ flag. Note: Missing driver for this.
HWREGBITW(AUX_EVCTL_BASE + AUX_EVCTL_O_EVTOMCUFLAGSCLR, AUX_EVCTL_EVTOMCUFLAGSCLR_ADC_IRQ_BITN) = 1;
// Post semaphore to wakeup task
Semaphore_post(hSem);
}
uint16_t cc26xx_get_adc_value()
{
uint16_t singleSample = AUXADCReadFifo();
return singleSample;
}
static uint16_t Get_ADC_reading(void)
{
uint16_t result_data = 0;
uint16_t ADC_array[ADC_Average] = {0};
int32_t adc_temp=0;
double result=0;
sensor_power_set_on();
adc_ct_select_set_on();
// Enable AUX
ti_lib_aon_wuc_aux_wakeup_event(AONWUC_AUX_WAKEUP);
while(!(ti_lib_aon_wuc_power_status_get() & AONWUC_AUX_POWER_ON))
{ }
// Enable clocks
ti_lib_aux_wuc_clock_enable(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK);
while(ti_lib_aux_wuc_clock_status(AUX_WUC_ADI_CLOCK | AUX_WUC_ANAIF_CLOCK | AUX_WUC_SMPH_CLOCK) != AUX_WUC_CLOCK_READY)
{ }
// Select input
AUXADCSelectInput(ADC_COMPB_IN_AUXIO5);
// Configure and enable
// AUXADCEnableSync(AUXADC_REF_VDDS_REL, AUXADC_SAMPLE_TIME_10P6_US, AUXADC_TRIGGER_MANUAL);
AUXADCEnableSync(AUXADC_REF_VDDS_REL, AUXADC_SAMPLE_TIME_170_US, AUXADC_TRIGGER_MANUAL);
// AUXADCEnableSync(AUXADC_REF_FIXED, AUXADC_SAMPLE_TIME_10P6_US, AUXADC_TRIGGER_MANUAL);
// Read
for(int i=0;i<ADC_Average;i++)
{
AUXADCGenManualTrigger();
adc_temp = AUXADCReadFifo();
if(adc_temp<2048)
{
result = adc_temp - 2048;
}else{
result = adc_temp;
}
ADC_array[i] = (uint16_t)(abs(result));
// AUXADCReadFifo();
}
result_data = Adc_Average(ADC_array);
// result_data = upcount++;
// AUXADCGenManualTrigger();
// result_data = AUXADCReadFifo();
// Disable ADC
AUXADCDisable();
adc_ct_select_set_off();
// relay_all_clear();
// sensor_power_set_off();
return result_data;
}