int32_t drv_adc_read(uint32_t ulPin)
{
ADC_ChannelConfTypeDef sConfig;
ADC_HandleTypeDef *hADCx;
uint32_t ulValue = 0;
uint32_t ulChannel;
uint32_t adc_pin;
adc_pin = analogPinToChannel(ulPin);
ulChannel = g_Pin2PortMapArray[adc_pin].adc_channel;
if(ulChannel == NO_ADC)
return -1;
hADCx = g_Pin2PortMapArray[adc_pin].ADCx;
sConfig.Channel = ulChannel;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_41CYCLES_5;
HAL_ADC_ConfigChannel(hADCx, &sConfig);
HAL_ADC_Start(hADCx);
HAL_ADC_PollForConversion(hADCx, 10);
ulValue = HAL_ADC_GetValue(hADCx);
return (int32_t)ulValue;
}
uint8_t adcPinToChannelNum(uint8_t pin) {
#if defined(__MK20DX128__) || defined(__MK20DX256__) // teensy 3, 3.1
#else
#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
if (pin >= 54) pin -= 54; // allow for channel or pin numbers
#elif defined(__AVR_ATmega32U4__)
if (pin >= 18) pin -= 18; // allow for channel or pin numbers
pin = analogPinToChannel(pin); // moved from extra #if which was below in Arduino code, and redefined in mozzi_analog.h, with notes
#elif defined(__AVR_ATmega1284__)
if (pin >= 24) pin -= 24; // allow for channel or pin numbers
#else
if (pin >= 14) pin -= 14; // allow for channel or pin numbers
#endif
#endif
return pin;
}
