/**
* @brief Configures the ADC multi-mode
* @param hadc : pointer to a ADC_HandleTypeDef structure that contains
* the configuration information for the specified ADC.
* @param multimode : pointer to an ADC_MultiModeTypeDef structure that contains
* the configuration information for multimode.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_ADCEx_MultiModeConfigChannel(ADC_HandleTypeDef* hadc, ADC_MultiModeTypeDef* multimode)
{
/* Check the parameters */
assert_param(IS_ADC_MODE(multimode->Mode));
assert_param(IS_ADC_DMA_ACCESS_MODE(multimode->DMAAccessMode));
assert_param(IS_ADC_SAMPLING_DELAY(multimode->TwoSamplingDelay));
/* Process locked */
__HAL_LOCK(hadc);
/* Set ADC mode */
ADC->CCR &= ~(ADC_CCR_MULTI);
ADC->CCR |= multimode->Mode;
/* Set the ADC DMA access mode */
ADC->CCR &= ~(ADC_CCR_DMA);
ADC->CCR |= multimode->DMAAccessMode;
/* Set delay between two sampling phases */
ADC->CCR &= ~(ADC_CCR_DELAY);
ADC->CCR |= multimode->TwoSamplingDelay;
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return HAL_OK;
}
void ADC_CommonInit(ADC_CommonInitTypeDef* ADC_CommonInitStruct)
{
uint32_t tmpreg1 = 0;
/* Check the parameters */
assert_param(IS_ADC_MODE(ADC_CommonInitStruct->ADC_Mode));
assert_param(IS_ADC_PRESCALER(ADC_CommonInitStruct->ADC_Prescaler));
assert_param(IS_ADC_DMA_ACCESS_MODE(ADC_CommonInitStruct->ADC_DMAAccessMode));
assert_param(IS_ADC_SAMPLING_DELAY(ADC_CommonInitStruct->ADC_TwoSamplingDelay));
/*---------------------------- ADC CCR Configuration -----------------*/
/* Get the ADC CCR value */
tmpreg1 = ADC->CCR;
/* Clear MULTI, DELAY, DMA and ADCPRE bits */
tmpreg1 &= CR_CLEAR_MASK;
/* Configure ADCx: Multi mode, Delay between two sampling time, ADC prescaler,
and DMA access mode for multimode */
/* Set MULTI bits according to ADC_Mode value */
/* Set ADCPRE bits according to ADC_Prescaler value */
/* Set DMA bits according to ADC_DMAAccessMode value */
/* Set DELAY bits according to ADC_TwoSamplingDelay value */
tmpreg1 |= (uint32_t)(ADC_CommonInitStruct->ADC_Mode |
ADC_CommonInitStruct->ADC_Prescaler |
ADC_CommonInitStruct->ADC_DMAAccessMode |
ADC_CommonInitStruct->ADC_TwoSamplingDelay);
/* Write to ADC CCR */
ADC->CCR = tmpreg1;
}
/*******************************************************************************
* 函数名称: ADC_Init
* 功能描述: 根据ADC_InitStruct 中指定的参数初始化ADCx 外围模块。
* 输入参数: (1)ADCx: 其中x 可以是1 2或3，用来选择ADC 外围模块.
* (2)ADC_InitStruc：指向结构体ADC_InitTypeDef 的指针,该结构包括了指定ADC外围模块的配置信息。
* 输出参数: 无
* 返回参数: 无
******************************************************************************/
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct)
{
u32 tmpreg1 = 0;
u8 tmpreg2 = 0;
/* Check the parameters [检查参数 检查参数]*/
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_MODE(ADC_InitStruct->ADC_Mode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ScanConvMode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ContinuousConvMode));
assert_param(IS_ADC_EXT_TRIG(ADC_InitStruct->ADC_ExternalTrigConv));
assert_param(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign));
assert_param(IS_ADC_REGULAR_LENGTH(ADC_InitStruct->ADC_NbrOfChannel));
/*---------------------------- ADCx CR1 Configuration [ADCx CR1配置]-----------------*/
/* Get the ADCx CR1 value [得到ADCx CR1的值]*/
tmpreg1 = ADCx->CR1;
/* Clear DUALMOD and SCAN bits [清除DUALMOD和SCAN位]*/
tmpreg1 &= CR1_CLEAR_Mask;
/* Configure ADCx: Dual mode and scan conversion mode [配置ADCx:双重模式和扫描转换模式]*/
/* Set DUALMOD bits according to ADC_Mode value [设置DUALMOD位依照ADC模式值]*/
/* Set SCAN bit according to ADC_ScanConvMode value */
tmpreg1 |= (u32)(ADC_InitStruct->ADC_Mode | ((u32)ADC_InitStruct->ADC_ScanConvMode << 8));
/* Write to ADCx CR1 [写到ADCx CR1]*/
ADCx->CR1 = tmpreg1;
/*---------------------------- ADCx CR2 Configuration [ADCx CR2配置]-----------------*/
/* Get the ADCx CR2 value [得到ADCx CR2的值]*/
tmpreg1 = ADCx->CR2;
/* Clear CONT, ALIGN and EXTSEL bits [清除CONT,ALIGN和EXTSEL位]*/
tmpreg1 &= CR2_CLEAR_Mask;
/* Configure ADCx: external trigger event and continuous conversion mode [配置ADCx:触发器时间和连续转换模式]*/
/* Set ALIGN bit according to ADC_DataAlign value [依照ADC_DataAlign的值设置ALIGN位]*/
/* Set EXTSEL bits according to ADC_ExternalTrigConv value [依照ADC_ExternalTrigConv的值设置EXTSEL位]*/
/* Set CONT bit according to ADC_ContinuousConvMode value [依照ADC_ContinuousConvMode的值设置CONT位]*/
tmpreg1 |= (u32)(ADC_InitStruct->ADC_DataAlign | ADC_InitStruct->ADC_ExternalTrigConv |
((u32)ADC_InitStruct->ADC_ContinuousConvMode << 1));
/* Write to ADCx CR2 [写入ADCx CR2]*/
ADCx->CR2 = tmpreg1;
/*---------------------------- ADCx SQR1 Configuration [ADCx SQR1配置]-----------------*/
/* Get the ADCx SQR1 value [取得ADCx SQR1的值]*/
tmpreg1 = ADCx->SQR1;
/* Clear L bits [清除L位]*/
tmpreg1 &= SQR1_CLEAR_Mask;
/* Configure ADCx: regular channel sequence length [配置ADCx:规则信道长度]*/
/* Set L bits according to ADC_NbrOfChannel value [依照ADC_NbrOfChannel的值设置L位]*/
tmpreg2 |= (ADC_InitStruct->ADC_NbrOfChannel - 1);
tmpreg1 |= ((u32)tmpreg2 << 20);
/* Write to ADCx SQR1 [写入ADCx SQR1]*/
ADCx->SQR1 = tmpreg1;
}
/**
* @brief Initializes the ADCx peripheral according to the specified parameters
* in the ADC_InitStruct.
* @param ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
* @param ADC_InitStruct: pointer to an ADC_InitTypeDef structure that contains
* the configuration information for the specified ADC peripheral.
* @retval None
*/
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct)
{
uint32_t tmpreg1 = 0;
uint8_t tmpreg2 = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_MODE(ADC_InitStruct->ADC_Mode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ScanConvMode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ContinuousConvMode));
assert_param(IS_ADC_EXT_TRIG(ADC_InitStruct->ADC_ExternalTrigConv));
assert_param(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign));
assert_param(IS_ADC_REGULAR_LENGTH(ADC_InitStruct->ADC_NbrOfChannel));
/*---------------------------- ADCx CR1 Configuration -----------------*/
/* Get the ADCx CR1 value */
tmpreg1 = ADCx->CR1;
/* Clear DUALMOD and SCAN bits */
tmpreg1 &= CR1_CLEAR_Mask;
/* Configure ADCx: Dual mode and scan conversion mode */
/* Set DUALMOD bits according to ADC_Mode value */
/* Set SCAN bit according to ADC_ScanConvMode value */
tmpreg1 |= (uint32_t)(ADC_InitStruct->ADC_Mode | ((uint32_t)ADC_InitStruct->ADC_ScanConvMode << 8));
/* Write to ADCx CR1 */
ADCx->CR1 = tmpreg1;
/*---------------------------- ADCx CR2 Configuration -----------------*/
/* Get the ADCx CR2 value */
tmpreg1 = ADCx->CR2;
/* Clear CONT, ALIGN and EXTSEL bits */
tmpreg1 &= CR2_CLEAR_Mask;
/* Configure ADCx: external trigger event and continuous conversion mode */
/* Set ALIGN bit according to ADC_DataAlign value */
/* Set EXTSEL bits according to ADC_ExternalTrigConv value */
/* Set CONT bit according to ADC_ContinuousConvMode value */
tmpreg1 |= (uint32_t)(ADC_InitStruct->ADC_DataAlign | ADC_InitStruct->ADC_ExternalTrigConv |
((uint32_t)ADC_InitStruct->ADC_ContinuousConvMode << 1));
/* Write to ADCx CR2 */
ADCx->CR2 = tmpreg1;
/*---------------------------- ADCx SQR1 Configuration -----------------*/
/* Get the ADCx SQR1 value */
tmpreg1 = ADCx->SQR1;
/* Clear L bits */
tmpreg1 &= SQR1_CLEAR_Mask;
/* Configure ADCx: regular channel sequence length */
/* Set L bits according to ADC_NbrOfChannel value */
tmpreg2 |= (uint8_t) (ADC_InitStruct->ADC_NbrOfChannel - (uint8_t)1);
tmpreg1 |= (uint32_t)tmpreg2 << 20;
/* Write to ADCx SQR1 */
ADCx->SQR1 = tmpreg1;
}
/**
* @brief Enable ADC multimode and configure multimode parameters
* @note Possibility to update parameters on the fly:
* This function initializes multimode parameters, following
* calls to this function can be used to reconfigure some parameters
* of structure "ADC_MultiModeTypeDef" on the fly, without reseting
* the ADCs (both ADCs of the common group).
* The setting of these parameters is conditioned to ADC state.
* For parameters constraints, see comments of structure
* "ADC_MultiModeTypeDef".
* @note To change back configuration from multimode to single mode, ADC must
* be reset (using function HAL_ADC_Init() ).
* @param hadc: ADC handle
* @param multimode: Structure of ADC multimode configuration
* @retval HAL status
*/
HAL_StatusTypeDef HAL_ADCEx_MultiModeConfigChannel(ADC_HandleTypeDef* hadc, ADC_MultiModeTypeDef* multimode)
{
HAL_StatusTypeDef tmp_hal_status = HAL_OK;
ADC_HandleTypeDef tmphadcSlave;
/* Check the parameters */
assert_param(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance));
assert_param(IS_ADC_MODE(multimode->Mode));
/* Process locked */
__HAL_LOCK(hadc);
/* Set a temporary handle of the ADC slave associated to the ADC master */
ADC_MULTI_SLAVE(hadc, &tmphadcSlave);
/* Parameters update conditioned to ADC state: */
/* Parameters that can be updated when ADC is disabled or enabled without */
/* conversion on going on regular group: */
/* - ADC master and ADC slave DMA configuration */
/* Parameters that can be updated only when ADC is disabled: */
/* - Multimode mode selection */
/* To optimize code, all multimode settings can be set when both ADCs of */
/* the common group are in state: disabled. */
if ((ADC_IS_ENABLE(hadc) == RESET) &&
(ADC_IS_ENABLE(&tmphadcSlave) == RESET) &&
(IS_ADC_MULTIMODE_MASTER_INSTANCE(hadc->Instance)) )
{
MODIFY_REG(hadc->Instance->CR1,
ADC_CR1_DUALMOD ,
multimode->Mode );
}
/* If one of the ADC sharing the same common group is enabled, no update */
/* could be done on neither of the multimode structure parameters. */
else
{
/* Update ADC state machine to error */
hadc->State = HAL_ADC_STATE_ERROR;
tmp_hal_status = HAL_ERROR;
}
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return tmp_hal_status;
}
/**
* @brief Initializes the ADCx peripheral according to the specified parameters
* in the ADC_InitStruct.
* @param ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
* @param ADC_InitStruct: pointer to an ADC_InitTypeDef structure that
* contains the configuration information for the specified
* ADC peripheral.
* @retval : None
*/
void ADC_Init(ADC_TypeDef* ADCx, ADC_InitTypeDef* ADC_InitStruct)
{
uint32_t tmpreg1 = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_MODE(ADC_InitStruct->ADC_Mode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ScanConvMode));
assert_param(IS_FUNCTIONAL_STATE(ADC_InitStruct->ADC_ContinuousConvMode));
assert_param(IS_ADC_EXT_TRIG(ADC_InitStruct->ADC_ExternalTrigConv));
assert_param(IS_ADC_DATA_ALIGN(ADC_InitStruct->ADC_DataAlign));
assert_param(IS_ADC_REGULAR_LENGTH(ADC_InitStruct->ADC_NbrOfChannel));
/*---------------------------- ADCx ADCFG Configuration -----------------*/
/* Get the ADCx ADCFG value */
tmpreg1 = ADCx->ADCFG;
/* Clear ADCPRE bits */
tmpreg1 &= ADCFG_CLEAR_Mask;
/* Configure ADCx: AD convertion prescare*/
/* Set ADCPRE bit according to ADC_PRESCARE value */
tmpreg1 |= (uint32_t)(ADC_InitStruct->ADC_PRESCARE);
/* Write to ADCx ADCFG */
ADCx->ADCFG = tmpreg1;
/*---------------------------- ADCx ADCR Configuration -----------------*/
/* Get the ADCx ADCR value */
tmpreg1 = ADCx->ADCR;
/* Clear ALIGN , ADMD, and TRGEN and TRGSEL bits */
tmpreg1 &= ADCR_CLEAR_Mask;
/* Configure ADCx: external trigger event and AD conversion mode and ALIGN*/
/* Set ALIGN bit according to ADC_DataAlign value */
/* Set TRGEN bits according to ADC_TRGEN value */
/* Set TRGSEL bits according to ADC_ExternalTrigConv value */
/* Set ADMD bit according to ADC_Mode value */
/*tmpreg1 |= ((uint32_t)ADC_InitStruct->ADC_DataAlign) | ADC_InitStruct->ADC_ExternalTrigConv |
((uint32_t)ADC_InitStruct->ADC_Mode) | ((uint32_t)ADC_InitStruct->ADC_TRGEN);*/
tmpreg1 |= ((uint32_t)ADC_InitStruct->ADC_DataAlign) |
((uint32_t)ADC_InitStruct->ADC_Mode) | (((uint32_t)ADC_InitStruct->ADC_TRGEN)<<2);
/* Write to ADCx ADCR */
ADCx->ADCR = tmpreg1;
}
/**
* @brief Configures the ADC multi-mode
* @param hadc : pointer to a ADC_HandleTypeDef structure that contains
* the configuration information for the specified ADC.
* @param multimode : pointer to an ADC_MultiModeTypeDef structure that contains
* the configuration information for multimode.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_ADCEx_MultiModeConfigChannel(ADC_HandleTypeDef* hadc, ADC_MultiModeTypeDef* multimode)
{
ADC_Common_TypeDef *tmpADC_Common;
/* Check the parameters */
assert_param(IS_ADC_MODE(multimode->Mode));
assert_param(IS_ADC_DMA_ACCESS_MODE(multimode->DMAAccessMode));
assert_param(IS_ADC_SAMPLING_DELAY(multimode->TwoSamplingDelay));
/* Process locked */
__HAL_LOCK(hadc);
/* Pointer to the common control register to which is belonging hadc */
/* (Depending on STM32F4 product, there may be up to 3 ADC and 1 common */
/* control register) */
tmpADC_Common = ADC_COMMON_REGISTER(hadc);
/* Set ADC mode */
tmpADC_Common->CCR &= ~(ADC_CCR_MULTI);
tmpADC_Common->CCR |= multimode->Mode;
/* Set the ADC DMA access mode */
tmpADC_Common->CCR &= ~(ADC_CCR_DMA);
tmpADC_Common->CCR |= multimode->DMAAccessMode;
/* Set delay between two sampling phases */
tmpADC_Common->CCR &= ~(ADC_CCR_DELAY);
tmpADC_Common->CCR |= multimode->TwoSamplingDelay;
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return HAL_OK;
}
