Posted on July 06, 2016 at 14:101. how to set up
for fast
channel
change
2 .without recalibration
3. how to use
SDADC_CONF_INDEX_0
//////////////////////////////////////////////////////////////////////////////////////////
////////////////////////////CDADC/////////////////////////////////////////////////////////////////////////////
/* Fill the SDADC handler with the parameters of initialisation */
/* An external reference is used. The other options are not used (low power, fast conversion,slow clock mode)*/
hsdadc1.Instance = SDADC1;
hsdadc1.Init.ReferenceVoltage = SDADC_VREF_VDDA ;//!< The reference voltage is forced internally to VDDA */
hsdadc1.Init.IdleLowPowerMode = SDADC_LOWPOWER_NONE;
hsdadc1.Init.FastConversionMode = SDADC_FAST_CONV_DISABLE;
hsdadc1.Init.SlowClockMode = SDADC_SLOW_CLOCK_DISABLE;
HAL_SDADC_Init(&hsdadc1);
SDADC_ConfParamTypeDef confParam;
//////////////////////////////////
/* -2- Prepare the channel configuration */
confParam.CommonMode = SDADC_COMMON_MODE_VSSA;// (SDADC_COMMON_MODE_VSSA 0v=8000)(SDADC_COMMON_MODE_VDDA 0v=8000) ;
confParam.Gain = SDADC_GAIN_1;// SDADC_GAIN_1 0v=8000 5v=3967// SDADC_GAIN_2 0v=8000 5v=7FFF=+32767//
confParam.InputMode = SDADC_INPUT_MODE_SE_ZERO_REFERENCE;
confParam.Offset = 0x00000000;
HAL_SDADC_PrepareChannelConfig(&hsdadc1, SDADC_CONF_INDEX_0, &confParam) ;
////////////////////////////////////
HAL_SDADC_AssociateChannelConfig(&hsdadc1, SDADC_CHANNEL_1, SDADC_CONF_INDEX_0);
HAL_SDADC_ConfigChannel(&hsdadc1, SDADC_CHANNEL_1, SDADC_CONTINUOUS_CONV_OFF);
HAL_SDADC_SelectRegularTrigger(&hsdadc1, SDADC_SOFTWARE_TRIGGER);
HAL_SDADC_CalibrationStart(&hsdadc1, SDADC_CALIBRATION_SEQ_1);
HAL_SDADC_PollForCalibEvent(&hsdadc1, HAL_MAX_DELAY);//* Pool for the end of calibration *//
//////////
HAL_SDADC_Start(&hsdadc1);//* Start regular conversion in polling mode */
/* Compute the input voltage */
HAL_SDADC_PollForConversion(&hsdadc1, HAL_MAX_DELAY);// /* wait for end of regular conversion */
TEST_U32 = HAL_SDADC_GetValue(&hsdadc1);
/////////////////////////////////////////////////
#stm32f3
