/**
* @brief ADC configuration
* @param None
* @retval None
*/
static void ADC_Config(void)
{
ADC_ChannelConfTypeDef sConfig;
ADC_AnalogWDGConfTypeDef AnalogWDGConfig;
/* Configuration of ADCx init structure: ADC parameters and regular group */
AdcHandle.Instance = ADCx;
AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
AdcHandle.Init.ScanConvMode = ADC_SCAN_DISABLE; /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */
#if defined ADC_TRIGGER_FROM_TIMER
AdcHandle.Init.ContinuousConvMode = DISABLE; /* Continuous mode disabled to have only 1 conversion at each conversion trig */
#else
AdcHandle.Init.ContinuousConvMode = ENABLE; /* Continuous mode to have maximum conversion speed (no delay between conversions) */
#endif
AdcHandle.Init.NbrOfConversion = 1; /* Parameter discarded because sequencer is disabled */
AdcHandle.Init.DiscontinuousConvMode = DISABLE; /* Parameter discarded because sequencer is disabled */
AdcHandle.Init.NbrOfDiscConversion = 1; /* Parameter discarded because sequencer is disabled */
#if defined ADC_TRIGGER_FROM_TIMER
AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_Tx_TRGO; /* Trig of conversion start done by external event */
#else
AdcHandle.Init.ExternalTrigConv = ADC_SOFTWARE_START; /* Software start to trig the 1st conversion manually, without external event */
#endif
if (HAL_ADC_Init(&AdcHandle) != HAL_OK)
{
/* ADC initialization error */
Error_Handler();
}
/* Configuration of channel on ADCx regular group on sequencer rank 1 */
/* Note: Considering IT occurring after each ADC conversion if ADC */
/* conversion is out of the analog watchdog window selected (ADC IT */
/* enabled), select sampling time and ADC clock with sufficient */
/* duration to not create an overhead situation in IRQHandler. */
sConfig.Channel = ADCx_CHANNELa;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_41CYCLES_5;
if (HAL_ADC_ConfigChannel(&AdcHandle, &sConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
/* Set analog watchdog thresholds in order to be between steps of DAC */
/* voltage. */
/* - High threshold: between DAC steps 1/2 and 3/4 of full range: */
/* 5/8 of full range (4095 <=> Vdda=3.3V): 2559<=> 2.06V */
/* - Low threshold: between DAC steps 0 and 1/4 of full range: */
/* 1/8 of full range (4095 <=> Vdda=3.3V): 512 <=> 0.41V */
/* Analog watchdog 1 configuration */
AnalogWDGConfig.WatchdogMode = ADC_ANALOGWATCHDOG_ALL_REG;
AnalogWDGConfig.Channel = ADCx_CHANNELa;
AnalogWDGConfig.ITMode = ENABLE;
AnalogWDGConfig.HighThreshold = (RANGE_12BITS * 5/8);
AnalogWDGConfig.LowThreshold = (RANGE_12BITS * 1/8);
if (HAL_ADC_AnalogWDGConfig(&AdcHandle, &AnalogWDGConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
}
/**
* @brief ADC configuration
* @param None
* @retval None
*/
static void ADC_Config(void)
{
ADC_ChannelConfTypeDef sConfig;
ADC_AnalogWDGConfTypeDef AnalogWDGConfig;
/* Configuration of AdcHandle init structure: ADC parameters and regular group */
AdcHandle.Instance = ADCx;
AdcHandle.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
AdcHandle.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD; /* Sequencer will convert the number of channels configured below, successively from the lowest to the highest channel number */
AdcHandle.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
AdcHandle.Init.LowPowerAutoWait = DISABLE;
AdcHandle.Init.LowPowerAutoPowerOff = DISABLE;
#if defined(ADC_TRIGGER_FROM_TIMER)
AdcHandle.Init.ContinuousConvMode = DISABLE; /* Continuous mode disabled to have only 1 conversion at each conversion trig */
#else
AdcHandle.Init.ContinuousConvMode = ENABLE; /* Continuous mode to have maximum conversion speed (no delay between conversions) */
#endif
AdcHandle.Init.DiscontinuousConvMode = DISABLE; /* Parameter discarded because sequencer is disabled */
#if defined(ADC_TRIGGER_FROM_TIMER)
AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_Tx_TRGO; /* Trig of conversion start done by external event */
AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
#else
AdcHandle.Init.ExternalTrigConv = ADC_SOFTWARE_START; /* Software start to trig the 1st conversion manually, without external event */
AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; /* Parameter discarded because trig of conversion by software start (no external event) */
#endif
AdcHandle.Init.DMAContinuousRequests = ENABLE; /* ADC-DMA continuous requests to match with DMA configured in circular mode */
AdcHandle.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
AdcHandle.Init.SamplingTimeCommon = ADC_SAMPLETIME_41CYCLES_5;
if (HAL_ADC_Init(&AdcHandle) != HAL_OK)
{
/* ADC initialization error */
Error_Handler();
}
/* Configuration of channel on ADCx regular group on sequencer rank 1 */
/* Note: Considering IT occurring after each ADC conversion if ADC */
/* conversion is out of the analog watchdog window selected (ADC IT */
/* enabled), select sampling time and ADC clock with sufficient */
/* duration to not create an overhead situation in IRQHandler. */
sConfig.Channel = ADCx_CHANNELa;
sConfig.Rank = ADC_RANK_CHANNEL_NUMBER;
if (HAL_ADC_ConfigChannel(&AdcHandle, &sConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
/* Set analog watchdog thresholds in order to be between steps of DAC */
/* voltage. */
/* - High threshold: between DAC steps 1/2 and 3/4 of full range: */
/* 5/8 of full range (4095 <=> Vdda=3.3V): 2559<=> 2.06V */
/* - Low threshold: between DAC steps 0 and 1/4 of full range: */
/* 1/8 of full range (4095 <=> Vdda=3.3V): 512 <=> 0.41V */
/* Analog watchdog 1 configuration */
AnalogWDGConfig.WatchdogMode = ADC_ANALOGWATCHDOG_ALL_REG;
AnalogWDGConfig.Channel = ADCx_CHANNELa;
AnalogWDGConfig.ITMode = ENABLE;
AnalogWDGConfig.HighThreshold = (RANGE_12BITS * 5/8);
AnalogWDGConfig.LowThreshold = (RANGE_12BITS * 1/8);
if (HAL_ADC_AnalogWDGConfig(&AdcHandle, &AnalogWDGConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
}
/* ADC init function */
void MX_ADC_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Peripheral clock enable */
__ADC1_CLK_ENABLE();
/* DMA controller clock enable */
__DMA1_CLK_ENABLE();
/**ADC GPIO Configuration
PA0-WKUP ------> ADC_IN0
*/
GPIO_InitStruct.Pin = GPIO_PIN_0;
GPIO_InitStruct.Mode = GPIO_MODE_ANALOG;
GPIO_InitStruct.Pull = GPIO_NOPULL;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Peripheral DMA init*/
DmaHandle.Instance = DMA1_Channel1;
DmaHandle.Init.Request = DMA_REQUEST_0;
DmaHandle.Init.Direction = DMA_PERIPH_TO_MEMORY;
DmaHandle.Init.PeriphInc = DMA_PINC_DISABLE;
DmaHandle.Init.MemInc = DMA_MINC_ENABLE;
DmaHandle.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD;
DmaHandle.Init.MemDataAlignment = DMA_MDATAALIGN_WORD;
DmaHandle.Init.Mode = DMA_CIRCULAR;
DmaHandle.Init.Priority = DMA_PRIORITY_MEDIUM;
HAL_DMA_DeInit(&DmaHandle);
HAL_DMA_Init(&DmaHandle);
__HAL_LINKDMA(&AdcHandle, DMA_Handle, DmaHandle);
/* DMA interrupt init */
HAL_NVIC_SetPriority(DMA1_Channel1_IRQn, 1, 0);
HAL_NVIC_EnableIRQ(DMA1_Channel1_IRQn);
ADC_ChannelConfTypeDef sConfig;
ADC_AnalogWDGConfTypeDef AnalogWDGConfig;
/**Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion)
*/
AdcHandle.Instance = ADC1;
AdcHandle.Init.OversamplingMode = DISABLE;
AdcHandle.Init.ClockPrescaler = ADC_CLOCKPRESCALER_PCLK_DIV1;
AdcHandle.Init.Resolution = ADC_RESOLUTION8b;
AdcHandle.Init.SamplingTime = ADC_SAMPLETIME_1CYCLE_5;
AdcHandle.Init.ScanDirection = ADC_SCAN_DIRECTION_UPWARD;
AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
AdcHandle.Init.ContinuousConvMode = ENABLE;
AdcHandle.Init.DiscontinuousConvMode = DISABLE;
AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIG_EDGE_NONE;
AdcHandle.Init.DMAContinuousRequests = ENABLE;
AdcHandle.Init.EOCSelection = EOC_SINGLE_CONV;
AdcHandle.Init.Overrun = OVR_DATA_PRESERVED;
AdcHandle.Init.LowPowerAutoWait = DISABLE;
AdcHandle.Init.LowPowerFrequencyMode = DISABLE;
AdcHandle.Init.LowPowerAutoOff = DISABLE;
HAL_ADC_Init(&AdcHandle);
HAL_ADCEx_Calibration_Start(&AdcHandle, ADC_SINGLE_ENDED);
sConfig.Channel = ADC_CHANNEL_0;
HAL_ADC_ConfigChannel(&AdcHandle, &sConfig);
/**Configure the analog watchdog
*/
AnalogWDGConfig.WatchdogMode = ADC_ANALOGWATCHDOG_SINGLE_REG;
AnalogWDGConfig.Channel = ADC_CHANNEL_0;
AnalogWDGConfig.ITMode = ENABLE;
AnalogWDGConfig.HighThreshold = 0;
AnalogWDGConfig.LowThreshold = 0;
HAL_ADC_AnalogWDGConfig(&AdcHandle, &AnalogWDGConfig);
HAL_ADC_Start_DMA(&AdcHandle, &resultDMA, DMA_BUFFER_SIZE);
}
/**
* @brief ADC configuration
* @param None
* @retval None
*/
static void ADC_Config(void)
{
ADC_ChannelConfTypeDef sConfig;
ADC_AnalogWDGConfTypeDef AnalogWDGConfig;
/* Configuration of ADCx init structure: ADC parameters and regular group */
AdcHandle.Instance = ADCx;
AdcHandle.Init.ClockPrescaler = ADC_CLOCK_SYNC_PCLK_DIV4;
AdcHandle.Init.Resolution = ADC_RESOLUTION_12B;
AdcHandle.Init.DataAlign = ADC_DATAALIGN_RIGHT;
AdcHandle.Init.ScanConvMode = DISABLE; /* Sequencer disabled (ADC conversion on only 1 channel: channel set on rank 1) */
AdcHandle.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
AdcHandle.Init.LowPowerAutoWait = DISABLE;
AdcHandle.Init.ContinuousConvMode = DISABLE; /* Continuous mode disabled to have only 1 conversion at each conversion trig */
AdcHandle.Init.NbrOfConversion = 1; /* Parameter discarded because sequencer is disabled */
AdcHandle.Init.DiscontinuousConvMode = DISABLE; /* Parameter discarded because sequencer is disabled */
AdcHandle.Init.NbrOfDiscConversion = 1; /* Parameter discarded because sequencer is disabled */
AdcHandle.Init.ExternalTrigConv = ADC_EXTERNALTRIGCONV_Tx_TRGO; /* Trig of conversion start done by external event */
AdcHandle.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
AdcHandle.Init.DMAContinuousRequests = ENABLE;
AdcHandle.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
if (HAL_ADC_Init(&AdcHandle) != HAL_OK)
{
/* ADC initialization error */
Error_Handler();
}
/* Configuration of channel on ADCx regular group on sequencer rank 1 */
/* Note: Considering IT occurring after each ADC conversion if ADC */
/* conversion is out of the analog watchdog widow selected (ADC IT */
/* enabled), select sampling time and ADC clock with sufficient */
/* duration to not create an overhead situation in IRQHandler. */
sConfig.Channel = ADCx_CHANNELa;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_181CYCLES_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
if (HAL_ADC_ConfigChannel(&AdcHandle, &sConfig) != HAL_OK)
{
/* Channel Configuration Error */
Error_Handler();
}
/* Set analog watchdog thresholds in order to be between steps of DAC */
/* voltage. */
/* - High threshold: between DAC steps 1/2 and 3/4 of full range: */
/* 5/8 of full range (4095 <=> Vdda=3.3V): 2559<=> 2.06V */
/* - Low threshold: between DAC steps 0 and 1/4 of full range: */
/* 1/8 of full range (4095 <=> Vdda=3.3V): 512 <=> 0.41V */
/* Analog watchdog 1 configuration */
AnalogWDGConfig.WatchdogNumber = ADC_ANALOGWATCHDOG_1;
AnalogWDGConfig.WatchdogMode = ADC_ANALOGWATCHDOG_ALL_REG;
AnalogWDGConfig.Channel = ADCx_CHANNELa;
AnalogWDGConfig.ITMode = ENABLE;
AnalogWDGConfig.HighThreshold = (RANGE_12BITS * 5/8);
AnalogWDGConfig.LowThreshold = (RANGE_12BITS * 1/8);
HAL_ADC_AnalogWDGConfig(&AdcHandle, &AnalogWDGConfig);
}