/**
* @brief Configures the analog watchdog.
* @note Analog watchdog thresholds can be modified while ADC conversion is on going.
* In this case, some constraints must be taken into account: the programmed threshold
* values are effective from the next ADC EOC (end of unitary conversion).
* Considering that registers write delay may happen due to bus activity, this might cause
* an uncertainty on the effective timing of the new programmed threshold values.
* @param hadc: pointer to a ADC_HandleTypeDef structure that contains
* the configuration information for the specified ADC.
* @param AnalogWDGConfig : pointer to an ADC_AnalogWDGConfTypeDef structure
* that contains the configuration information of ADC analog watchdog.
* @retval HAL status
*/
HAL_StatusTypeDef HAL_ADC_AnalogWDGConfig(ADC_HandleTypeDef* hadc, ADC_AnalogWDGConfTypeDef* AnalogWDGConfig)
{
#ifdef USE_FULL_ASSERT
uint32_t tmp = 0;
#endif /* USE_FULL_ASSERT */
/* Check the parameters */
assert_param(IS_ADC_ANALOG_WATCHDOG(AnalogWDGConfig->WatchdogMode));
assert_param(IS_ADC_CHANNEL(AnalogWDGConfig->Channel));
assert_param(IS_FUNCTIONAL_STATE(AnalogWDGConfig->ITMode));
#ifdef USE_FULL_ASSERT
tmp = ADC_GET_RESOLUTION(hadc);
assert_param(IS_ADC_RANGE(tmp, AnalogWDGConfig->HighThreshold));
assert_param(IS_ADC_RANGE(tmp, AnalogWDGConfig->LowThreshold));
#endif /* USE_FULL_ASSERT */
/* Process locked */
__HAL_LOCK(hadc);
if(AnalogWDGConfig->ITMode == ENABLE)
{
/* Enable the ADC Analog watchdog interrupt */
__HAL_ADC_ENABLE_IT(hadc, ADC_IT_AWD);
}
else
{
/* Disable the ADC Analog watchdog interrupt */
__HAL_ADC_DISABLE_IT(hadc, ADC_IT_AWD);
}
/* Clear AWDEN, JAWDEN and AWDSGL bits */
hadc->Instance->CR1 &= ~(ADC_CR1_AWDSGL | ADC_CR1_JAWDEN | ADC_CR1_AWDEN);
/* Set the analog watchdog enable mode */
hadc->Instance->CR1 |= AnalogWDGConfig->WatchdogMode;
/* Set the high threshold */
hadc->Instance->HTR = AnalogWDGConfig->HighThreshold;
/* Set the low threshold */
hadc->Instance->LTR = AnalogWDGConfig->LowThreshold;
/* Clear the Analog watchdog channel select bits */
hadc->Instance->CR1 &= ~ADC_CR1_AWDCH;
/* Set the Analog watchdog channel */
hadc->Instance->CR1 |= (uint32_t)((uint16_t)(AnalogWDGConfig->Channel));
/* Process unlocked */
__HAL_UNLOCK(hadc);
/* Return function status */
return HAL_OK;
}
/**
* @brief Enables or disables the analog watchdog on single/all regular
* or injected channels
* @param ADCx: where x can be 1, 2 or 3 to select the ADC peripheral.
* @param ADC_AnalogWatchdog: the ADC analog watchdog configuration.
* This parameter can be one of the following values:
* @arg ADC_AnalogWatchdog_SingleRegEnable: Analog watchdog on a single regular channel
* @arg ADC_AnalogWatchdog_SingleInjecEnable: Analog watchdog on a single injected channel
* @arg ADC_AnalogWatchdog_SingleRegOrInjecEnable: Analog watchdog on a single regular or injected channel
* @arg ADC_AnalogWatchdog_AllRegEnable: Analog watchdog on all regular channel
* @arg ADC_AnalogWatchdog_AllInjecEnable: Analog watchdog on all injected channel
* @arg ADC_AnalogWatchdog_AllRegAllInjecEnable: Analog watchdog on all regular and injected channels
* @arg ADC_AnalogWatchdog_None: No channel guarded by the analog watchdog
* @retval None
*/
void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, uint32_t ADC_AnalogWatchdog)
{
uint32_t tmpreg = 0;
/* Check the parameters */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_ANALOG_WATCHDOG(ADC_AnalogWatchdog));
/* Get the old register value */
tmpreg = ADCx->CR1;
/* Clear AWDEN, AWDENJ and AWDSGL bits */
tmpreg &= CR1_AWDMode_Reset;
/* Set the analog watchdog enable mode */
tmpreg |= ADC_AnalogWatchdog;
/* Store the new register value */
ADCx->CR1 = tmpreg;
}
/*******************************************************************************
* 函数名称: ADC_AnalogWatchdogCmd
* 功能描述: 使能/禁止一个/所有常规信道或者注入信道的模拟看门狗。
* 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_AnalogWatchdog: ADC模拟看门狗配置
* 该参数可能的取值:
* - ADC_AnalogWatchdog_SingleRegEnable: 单常规信道上的模拟看门狗
* - ADC_AnalogWatchdog_SingleInjecEnable: 单注入信道上的模拟看门狗
* - ADC_AnalogWatchdog_SingleRegOrInjecEnable: 单常规信道或者注入信道的模拟看门狗
* - ADC_AnalogWatchdog_AllRegEnable: 所有常规信道上的模拟看门狗
* - ADC_AnalogWatchdog_AllInjecEnable: 所有注入信道上的模拟看门狗
* - ADC_AnalogWatchdog_AllRegAllInjecEnable: 所有常规信道和注入信道上的模拟看门狗
* - ADC_AnalogWatchdog_无: 没有信道需要模拟看门狗监视
* 输出参数: 无
* 返回参数: 无
*******************************************************************************/
void ADC_AnalogWatchdogCmd(ADC_TypeDef* ADCx, u32 ADC_AnalogWatchdog)
{
u32 tmpreg = 0;
/* Check the parameters [检查参数] */
assert_param(IS_ADC_ALL_PERIPH(ADCx));
assert_param(IS_ADC_ANALOG_WATCHDOG(ADC_AnalogWatchdog));
/* Get the old register value [取得旧的寄存器值]*/
tmpreg = ADCx->CR1;
/* Clear AWDEN, AWDENJ and AWDSGL bits [清除AWDEN,AWDENJ和AWDSGL位]*/
tmpreg &= CR1_AWDMode_Reset;
/* Set the analog watchdog enable mode [置位模拟看门狗允许模式]*/
tmpreg |= ADC_AnalogWatchdog;
/* Store the new register value [存储新的寄存器值]*/
ADCx->CR1 = tmpreg;
}