// 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 cc26xx_adc_init(uint32_t ADCInput)
{
//intialisation of ADC
ti_lib_aon_wuc_aux_wakeup_event(AONWUC_AUX_WAKEUP);
while(!(ti_lib_aon_wuc_power_status_get() & AONWUC_AUX_POWER_ON))
{ }
// Enable clock for ADC digital and analog interface (not currently enabled in driver)
// 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)
{ }
printf("clock selected\r\n");
// Connect AUX IO7 (DIO23, but also DP2 on XDS110) as analog input.
AUXADCSelectInput(ADCInput);
printf("input selected\r\n");
// Set up ADC range
// AUXADC_REF_FIXED = nominally 4.3 V
AUXADCEnableSync(AUXADC_REF_FIXED, AUXADC_SAMPLE_TIME_2P7_US, AUXADC_TRIGGER_MANUAL);
printf("init adc --- OK\r\n");
}
//taskFxn
void taskFxn(UArg a0, UArg a1) {
Hwi_Params hwiParams;
Hwi_Params_init(&hwiParams);
hwiParams.enableInt = true;
Hwi_construct(&hwi, INT_AUX_ADC, adcIsr, &hwiParams, NULL);
UART_Params uParams;
// Initialize default values
UART_Params_init(&uParams);
// Configure custom data, don't care about read params as not used
// 115.2kBaud, Text, blocking mode
uHandle = UART_open(Board_UART,&uParams);
// Set up pins
pinHandle = PIN_open(&pinState, alsPins);
// Enable clock for ADC digital and analog interface (not currently enabled in driver)
AUXWUCClockEnable(AUX_WUC_MODCLKEN0_SOC_M|AUX_WUC_MODCLKEN0_AUX_ADI4_M);
// Connect AUX IO7 (DIO23) as analog input. Light sensor on SmartRF06EB
AUXADCSelectInput(ADC_COMPB_IN_AUXIO7);
// 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);
while(1) {
//Sleep 100ms in IDLE mode
//Task_sleep(100 * 1000 / Clock_tickPeriod);
// Trigger ADC sampling
AUXADCGenManualTrigger();
// Wait in IDLE until done
Semaphore_pend(hSem, BIOS_WAIT_FOREVER );
//System_printf("ADC: %d\r\n", singleSample);
//printf ("ADC: %d\r\n");
//printf ("ADC\r\n");
}
/*
// Disable ADC
AUXADCDisable();
// Allow STANDBY mode again
Power_releaseConstraint(Power_SB_DISALLOW);
// Restore pins to values in BoardGpioTable
PIN_close(pinHandle);
// Log data through UART
UART_write(uHandle, &adcSamples[1], SAMPLESIZE);
// Goto STANDBY forever
Task_sleep(BIOS_WAIT_FOREVER);
*/
}
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;
}
