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			583 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			583 lines
		
	
	
		
			24 KiB
		
	
	
	
		
			C
		
	
	
		
			Executable File
		
	
	
	
	
| /**
 | |
|   ******************************************************************************
 | |
|   * @file    py32f0xx_ll_adc.c
 | |
|   * @author  MCU Application Team
 | |
|   * @brief   ADC LL module driver.
 | |
|   ******************************************************************************
 | |
|   * @attention
 | |
|   *
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|   * <h2><center>© Copyright (c) Puya Semiconductor Co.
 | |
|   * All rights reserved.</center></h2>
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|   *
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|   * <h2><center>© Copyright (c) 2016 STMicroelectronics.
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|   * All rights reserved.</center></h2>
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|   *
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|   * This software component is licensed by ST under BSD 3-Clause license,
 | |
|   * the "License"; You may not use this file except in compliance with the
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|   * License. You may obtain a copy of the License at:
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|   *                        opensource.org/licenses/BSD-3-Clause
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|   *
 | |
|   ******************************************************************************
 | |
|   */
 | |
| #if defined(USE_FULL_LL_DRIVER)
 | |
| 
 | |
| /* Includes ------------------------------------------------------------------*/
 | |
| #include "py32f0xx_ll_adc.h"
 | |
| #include "py32f0xx_ll_bus.h"
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| 
 | |
| 
 | |
| #ifdef  USE_FULL_ASSERT
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| #include "PY32_assert.h"
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| #else
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| #define assert_param(expr) ((void)0U)
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| #endif
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| 
 | |
| /** @addtogroup PY32F0xx_LL_Driver
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|   * @{
 | |
|   */
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| 
 | |
| #if defined (ADC1)
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| 
 | |
| /** @addtogroup ADC_LL ADC
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|   * @{
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|   */
 | |
| 
 | |
| /* Private types -------------------------------------------------------------*/
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| /* Private variables ---------------------------------------------------------*/
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| /* Private constants ---------------------------------------------------------*/
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| /** @addtogroup ADC_LL_Private_Constants
 | |
|   * @{
 | |
|   */
 | |
| 
 | |
| /* Definitions of ADC hardware constraints delays */
 | |
| /* Note: Only ADC IP HW delays are defined in ADC LL driver driver,           */
 | |
| /*       not timeout values:                                                  */
 | |
| /*       Timeout values for ADC operations are dependent to device clock      */
 | |
| /*       configuration (system clock versus ADC clock),                       */
 | |
| /*       and therefore must be defined in user application.                   */
 | |
| /*       Refer to @ref ADC_LL_EC_HW_DELAYS for description of ADC timeout     */
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| /*       values definition.                                                   */
 | |
| /* Unit: CPU cycles.                                                          */
 | |
| #define ADC_CLOCK_RATIO_VS_CPU_HIGHEST          ((uint32_t) 512U * 16U * 4U)
 | |
| #define ADC_TIMEOUT_DISABLE_CPU_CYCLES          (ADC_CLOCK_RATIO_VS_CPU_HIGHEST * 1U)
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| #define ADC_TIMEOUT_STOP_CONVERSION_CPU_CYCLES  (ADC_CLOCK_RATIO_VS_CPU_HIGHEST * 1U)
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| 
 | |
| /**
 | |
|   * @}
 | |
|   */
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| 
 | |
| /* Private macros ------------------------------------------------------------*/
 | |
| 
 | |
| /** @addtogroup ADC_LL_Private_Macros
 | |
|   * @{
 | |
|   */
 | |
| 
 | |
| /* Check of parameters for configuration of ADC hierarchical scope:           */
 | |
| /* common to several ADC instances.                                           */
 | |
| /* Check of parameters for configuration of ADC hierarchical scope:           */
 | |
| /* ADC instance.                                                              */
 | |
| #define IS_LL_ADC_CLOCK(__CLOCK__)                                             \
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|   (   ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV64)                            \
 | |
|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV32)                            \
 | |
|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV16)                            \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV8)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV4)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV2)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_SYNC_PCLK_DIV1)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV64)                            \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV32)                            \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV16)                            \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV8)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV4)                             \
 | |
|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV2)                             \
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|    || ((__CLOCK__) == LL_ADC_CLOCK_ASYNC_HSI_DIV1)                             \
 | |
|   )
 | |
| 
 | |
| #define IS_LL_ADC_RESOLUTION(__RESOLUTION__)                                   \
 | |
|   (   ((__RESOLUTION__) == LL_ADC_RESOLUTION_12B)                              \
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|    || ((__RESOLUTION__) == LL_ADC_RESOLUTION_10B)                              \
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|    || ((__RESOLUTION__) == LL_ADC_RESOLUTION_8B)                               \
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|    || ((__RESOLUTION__) == LL_ADC_RESOLUTION_6B)                               \
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|   )
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| 
 | |
| #define IS_LL_ADC_DATA_ALIGN(__DATA_ALIGN__)                                   \
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|   (   ((__DATA_ALIGN__) == LL_ADC_DATA_ALIGN_RIGHT)                            \
 | |
|    || ((__DATA_ALIGN__) == LL_ADC_DATA_ALIGN_LEFT)                             \
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|   )
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| 
 | |
| #define IS_LL_ADC_LOW_POWER(__LOW_POWER__)                                     \
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|   (   ((__LOW_POWER__) == LL_ADC_LP_MODE_NONE)                                 \
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|    || ((__LOW_POWER__) == LL_ADC_LP_AUTOWAIT)                                  \
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|   )
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| 
 | |
| /* Check of parameters for configuration of ADC hierarchical scope:           */
 | |
| /* ADC group regular                                                          */
 | |
| #define IS_LL_ADC_REG_TRIG_SOURCE(__REG_TRIG_SOURCE__)                         \
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|   (   ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_SOFTWARE)                      \
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|    || ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_TRGO)                 \
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|    || ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM1_CH4)                  \
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|    || ((__REG_TRIG_SOURCE__) == LL_ADC_REG_TRIG_EXT_TIM3_TRGO)                 \
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|   )
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| 
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| #define IS_LL_ADC_REG_CONTINUOUS_MODE(__REG_CONTINUOUS_MODE__)                 \
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|   (   ((__REG_CONTINUOUS_MODE__) == LL_ADC_REG_CONV_SINGLE)                    \
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|    || ((__REG_CONTINUOUS_MODE__) == LL_ADC_REG_CONV_CONTINUOUS)                \
 | |
|   )
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| 
 | |
| #if (defined(DMA) || defined(DMA1))
 | |
| #define IS_LL_ADC_REG_DMA_TRANSFER(__REG_DMA_TRANSFER__)                       \
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|   (   ((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_NONE)                 \
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|    || ((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_LIMITED)              \
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|    || ((__REG_DMA_TRANSFER__) == LL_ADC_REG_DMA_TRANSFER_UNLIMITED)            \
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|   )
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| #endif
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| 
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| #define IS_LL_ADC_REG_OVR_DATA_BEHAVIOR(__REG_OVR_DATA_BEHAVIOR__)             \
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|   (   ((__REG_OVR_DATA_BEHAVIOR__) == LL_ADC_REG_OVR_DATA_PRESERVED)           \
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|    || ((__REG_OVR_DATA_BEHAVIOR__) == LL_ADC_REG_OVR_DATA_OVERWRITTEN)         \
 | |
|   )
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| 
 | |
| #define IS_LL_ADC_REG_SEQ_SCAN_DISCONT_MODE(__REG_SEQ_DISCONT_MODE__)          \
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|   (   ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_DISABLE)           \
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|    || ((__REG_SEQ_DISCONT_MODE__) == LL_ADC_REG_SEQ_DISCONT_1RANK)             \
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|   )
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| 
 | |
| /**
 | |
|   * @}
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|   */
 | |
| 
 | |
| 
 | |
| /* Private function prototypes -----------------------------------------------*/
 | |
| 
 | |
| /* Exported functions --------------------------------------------------------*/
 | |
| /** @addtogroup ADC_LL_Exported_Functions
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|   * @{
 | |
|   */
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| 
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| /** @addtogroup ADC_LL_EF_Init
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|   * @{
 | |
|   */
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| 
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| /**
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|   * @brief  De-initialize registers of all ADC instances belonging to
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|   *         the same ADC common instance to their default reset values.
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|   * @note   This function is performing a hard reset, using high level
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|   *         clock source RCC ADC reset.
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|   * @param  ADCxy_COMMON ADC common instance
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|   *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_ADC_COMMON_INSTANCE() )
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|   * @retval An ErrorStatus enumeration value:
 | |
|   *          - SUCCESS: ADC common registers are de-initialized
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|   *          - ERROR: not applicable
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|   */
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| ErrorStatus LL_ADC_CommonDeInit(ADC_Common_TypeDef *ADCxy_COMMON)
 | |
| {
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|   /* Check the parameters */
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|   assert_param(IS_ADC_COMMON_INSTANCE(ADCxy_COMMON));
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| 
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|   /* Force reset of ADC clock (core clock) */
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|   LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_ADC1);
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| 
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|   /* Release reset of ADC clock (core clock) */
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|   LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_ADC1);
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| 
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|   return SUCCESS;
 | |
| }
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| 
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| /**
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|   * @brief  De-initialize registers of the selected ADC instance
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|   *         to their default reset values.
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|   * @note   To reset all ADC instances quickly (perform a hard reset),
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|   *         use function @ref LL_ADC_CommonDeInit().
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|   * @note   If this functions returns error status, it means that ADC instance
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|   *         is in an unknown state.
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|   *         In this case, perform a hard reset using high level
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|   *         clock source RCC ADC reset.
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|   *         Refer to function @ref LL_ADC_CommonDeInit().
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|   * @param  ADCx ADC instance
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|   * @retval An ErrorStatus enumeration value:
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|   *          - SUCCESS: ADC registers are de-initialized
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|   *          - ERROR: ADC registers are not de-initialized  
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|   */
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| ErrorStatus LL_ADC_DeInit(ADC_TypeDef *ADCx)
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| {
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|   ErrorStatus status = SUCCESS;
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| 
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|   __IO uint32_t timeout_cpu_cycles = 0U;
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| 
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|   /* Check the parameters */
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|   assert_param(IS_ADC_ALL_INSTANCE(ADCx));
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| 
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|   /* Disable ADC instance if not already disabled.                            */
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|   if(LL_ADC_IsEnabled(ADCx) == 1U)
 | |
|   {
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|     /* Set ADC group regular trigger source to SW start to ensure to not      */
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|     /* have an external trigger event occurring during the conversion stop    */
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|     /* ADC disable process.                                                   */
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|     LL_ADC_REG_SetTriggerSource(ADCx, LL_ADC_REG_TRIG_SOFTWARE);
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| 
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|     /* Stop potential ADC conversion on going on ADC group regular.           */
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|     if(LL_ADC_REG_IsConversionOngoing(ADCx) != 0U)
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|     {
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|       if(LL_ADC_REG_IsStopConversionOngoing(ADCx) == 0U)
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|       {
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|         LL_ADC_REG_StopConversion(ADCx);
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|       }
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|     }
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|     else
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|     {
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|       (ADCx->CFGR1)|=(0x7<<6);
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|       (ADCx->CFGR1)|=(0x3<<10);
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|       __disable_irq();
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|       LL_ADC_REG_StartConversion(ADCx);
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|       LL_ADC_REG_StopConversion(ADCx);
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|       __enable_irq();
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|     }
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| 
 | |
|     /* Wait for ADC conversions are effectively stopped                       */
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|     timeout_cpu_cycles = ADC_TIMEOUT_STOP_CONVERSION_CPU_CYCLES;
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|     while (LL_ADC_REG_IsStopConversionOngoing(ADCx) == 1U)
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|     {
 | |
|       if(timeout_cpu_cycles-- == 0U)
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|       {
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|         /* Time-out error */
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|         status = ERROR;
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|       }
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|     }
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| 
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|     /* Wait for ADC instance is effectively disabled */
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|     timeout_cpu_cycles = ADC_TIMEOUT_DISABLE_CPU_CYCLES;
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|     while (LL_ADC_IsEnabled(ADCx) == 1U)
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|     {
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|       if(timeout_cpu_cycles-- == 0U)
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|       {
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|         /* Time-out error */
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|         status = ERROR;
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|       }
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|     }
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|   }
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| 
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|   /* Check whether ADC state is compliant with expected state */
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|   if(READ_BIT(ADCx->CR,(ADC_CR_ADSTP | ADC_CR_ADSTART | ADC_CR_ADEN ))== 0U)
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|   {
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|     /* ========== Reset ADC registers ========== */
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|     /* Reset register IER */
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|     CLEAR_BIT(ADCx->IER,
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|               (  LL_ADC_IT_EOC
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|                  | LL_ADC_IT_EOS
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|                  | LL_ADC_IT_OVR
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|                  | LL_ADC_IT_EOSMP
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|                  | LL_ADC_IT_AWD )
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|              );
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| 
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|     /* Reset register ISR */
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|     SET_BIT(ADCx->ISR,
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|             (  LL_ADC_FLAG_EOC
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|                | LL_ADC_FLAG_EOS
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|                | LL_ADC_FLAG_OVR
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|                | LL_ADC_FLAG_EOSMP
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|                | LL_ADC_FLAG_AWD )
 | |
|            );
 | |
| 
 | |
|     /* Reset register CR */
 | |
|     /* Bits ADC_CR_ADCAL, ADC_CR_ADSTP, ADC_CR_ADSTART are in access mode     */
 | |
|     /* "read-set": no direct reset applicable.                                */
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|     /* No action on register CR */
 | |
| 
 | |
|     /* Reset register CFGR1 */
 | |
| #if (defined(DMA) || defined(DMA1))
 | |
|     CLEAR_BIT(ADCx->CFGR1,
 | |
|               (  ADC_CFGR1_AWDCH   | ADC_CFGR1_AWDEN  | ADC_CFGR1_AWDSGL  | ADC_CFGR1_DISCEN
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|                  | ADC_CFGR1_WAIT   | ADC_CFGR1_CONT    | ADC_CFGR1_OVRMOD
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|                  | ADC_CFGR1_EXTEN   | ADC_CFGR1_EXTSEL | ADC_CFGR1_ALIGN   | ADC_CFGR1_RESSEL
 | |
|                  | ADC_CFGR1_SCANDIR | ADC_CFGR1_DMACFG | ADC_CFGR1_DMAEN                     )
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|              );
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| #else
 | |
|     CLEAR_BIT(ADCx->CFGR1,
 | |
|               (  ADC_CFGR1_AWDCH   | ADC_CFGR1_AWDEN  | ADC_CFGR1_AWDSGL  | ADC_CFGR1_DISCEN
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|                  | ADC_CFGR1_WAIT   | ADC_CFGR1_CONT    | ADC_CFGR1_OVRMOD
 | |
|                  | ADC_CFGR1_EXTEN   | ADC_CFGR1_EXTSEL | ADC_CFGR1_ALIGN   | ADC_CFGR1_RESSEL
 | |
|                  | ADC_CFGR1_SCANDIR                     )
 | |
|              );
 | |
| #endif
 | |
| 
 | |
|     /* Reset register CFGR2 */
 | |
|     /* Note: Update of ADC clock mode is conditioned to ADC state disabled:   */
 | |
|     /*       already done above.                                              */
 | |
|     CLEAR_BIT(ADCx->CFGR2, ADC_CFGR2_CKMODE);
 | |
| 
 | |
|     /* Reset register SMPR */
 | |
|     CLEAR_BIT(ADCx->SMPR, ADC_SMPR_SMP);
 | |
| 
 | |
|     /* Reset register TR */
 | |
|     MODIFY_REG(ADCx->TR, ADC_TR_HT | ADC_TR_LT, ADC_TR_HT);
 | |
| 
 | |
|     /* Reset register CHSELR */
 | |
| 
 | |
|     CLEAR_BIT(ADCx->CHSELR,
 | |
|               ( ADC_CHSELR_CHSEL12  | ADC_CHSELR_CHSEL11 | ADC_CHSELR_CHSEL9  | ADC_CHSELR_CHSEL8
 | |
|                 | ADC_CHSELR_CHSEL7  | ADC_CHSELR_CHSEL6  | ADC_CHSELR_CHSEL5  | ADC_CHSELR_CHSEL4
 | |
|                 | ADC_CHSELR_CHSEL3  | ADC_CHSELR_CHSEL2  | ADC_CHSELR_CHSEL1  | ADC_CHSELR_CHSEL0 )
 | |
|              );
 | |
| 
 | |
|     /* Reset register CCR */
 | |
|     CLEAR_BIT(__LL_ADC_COMMON_INSTANCE(ADC1)->CCR,ADC_CCR_TSEN | ADC_CCR_VREFEN);
 | |
| 
 | |
|     /* Reset register DR */
 | |
|     /* bits in access mode read only, no direct reset applicable */
 | |
| 
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     /* ADC instance is in an unknown state */
 | |
|     /* Need to performing a hard reset of ADC instance, using high level      */
 | |
|     /* clock source RCC ADC reset.                                            */
 | |
|     /* Caution: On this PY32 serie, if several ADC instances are available    */
 | |
|     /*          on the selected device, RCC ADC reset will reset              */
 | |
|     /*          all ADC instances belonging to the common ADC instance.       */
 | |
|     status = ERROR;
 | |
|   }
 | |
| 
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| 
 | |
| /**
 | |
|   * @brief  Initialize some features of ADC instance.
 | |
|   * @note   These parameters have an impact on ADC scope: ADC instance.
 | |
|   *         Refer to corresponding unitary functions into
 | |
|   *         @ref ADC_LL_EF_Configuration_ADC_Instance .
 | |
|   * @note   The setting of these parameters by function @ref LL_ADC_Init()
 | |
|   *         is conditioned to ADC state:
 | |
|   *         ADC instance must be disabled.
 | |
|   *         This condition is applied to all ADC features, for efficiency
 | |
|   *         and compatibility over all PY32 families. However, the different
 | |
|   *         features can be set under different ADC state conditions
 | |
|   *         (setting possible with ADC enabled without conversion on going,
 | |
|   *         ADC enabled with conversion on going, ...)
 | |
|   *         Each feature can be updated afterwards with a unitary function
 | |
|   *         and potentially with ADC in a different state than disabled,
 | |
|   *         refer to description of each function for setting
 | |
|   *         conditioned to ADC state.
 | |
|   * @note   After using this function, some other features must be configured
 | |
|   *         using LL unitary functions.
 | |
|   *         The minimum configuration remaining to be done is:
 | |
|   *          - Set ADC group regular sequencer:
 | |
|   *            map channel on rank corresponding to channel number.
 | |
|   *            Refer to function @ref LL_ADC_REG_SetSequencerChannels();
 | |
|   *          - Set ADC channel sampling time
 | |
|   *            Refer to function LL_ADC_SetChannelSamplingTime();
 | |
|   * @param  ADCx ADC instance
 | |
|   * @param  ADC_InitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
 | |
|   * @retval An ErrorStatus enumeration value:
 | |
|   *          - SUCCESS: ADC registers are initialized
 | |
|   *          - ERROR: ADC registers are not initialized
 | |
|   */
 | |
| ErrorStatus LL_ADC_Init(ADC_TypeDef *ADCx, LL_ADC_InitTypeDef *ADC_InitStruct)
 | |
| {
 | |
|   ErrorStatus status = SUCCESS;
 | |
| 
 | |
|   /* Check the parameters */
 | |
|   assert_param(IS_ADC_ALL_INSTANCE(ADCx));
 | |
| 
 | |
|   assert_param(IS_LL_ADC_CLOCK(ADC_InitStruct->Clock));
 | |
|   assert_param(IS_LL_ADC_RESOLUTION(ADC_InitStruct->Resolution));
 | |
|   assert_param(IS_LL_ADC_DATA_ALIGN(ADC_InitStruct->DataAlignment));
 | |
|   assert_param(IS_LL_ADC_LOW_POWER(ADC_InitStruct->LowPowerMode));
 | |
| 
 | |
|   /* Note: Hardware constraint (refer to description of this function):       */
 | |
|   /*       ADC instance must be disabled.                                     */
 | |
|   if(LL_ADC_IsEnabled(ADCx) == 0U)
 | |
|   {
 | |
|     /* Configuration of ADC hierarchical scope:                               */
 | |
|     /*  - ADC instance                                                        */
 | |
|     /*    - Set ADC data resolution                                           */
 | |
|     /*    - Set ADC conversion data alignment                                 */
 | |
|     /*    - Set ADC low power mode                                            */
 | |
|     MODIFY_REG(ADCx->CFGR1,
 | |
|                ADC_CFGR1_RESSEL
 | |
|                | ADC_CFGR1_ALIGN
 | |
|                | ADC_CFGR1_WAIT
 | |
|                ,
 | |
|                ADC_InitStruct->Resolution
 | |
|                | ADC_InitStruct->DataAlignment
 | |
|                | ADC_InitStruct->LowPowerMode
 | |
|               );
 | |
| 
 | |
|     MODIFY_REG(ADCx->CFGR2,
 | |
|                ADC_CFGR2_CKMODE
 | |
|                ,
 | |
|                ADC_InitStruct->Clock
 | |
|               );
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     /* Initialization error: ADC instance is not disabled. */
 | |
|     status = ERROR;
 | |
|   }
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   * @brief  Set each @ref LL_ADC_InitTypeDef field to default value.
 | |
|   * @param  ADC_InitStruct Pointer to a @ref LL_ADC_InitTypeDef structure
 | |
|   *                        whose fields will be set to default values.
 | |
|   * @retval None
 | |
|   */
 | |
| void LL_ADC_StructInit(LL_ADC_InitTypeDef *ADC_InitStruct)
 | |
| {
 | |
|   /* Set ADC_InitStruct fields to default values */
 | |
|   /* Set fields of ADC instance */
 | |
|   ADC_InitStruct->Clock         = LL_ADC_CLOCK_SYNC_PCLK_DIV2;
 | |
|   ADC_InitStruct->Resolution    = LL_ADC_RESOLUTION_12B;
 | |
|   ADC_InitStruct->DataAlignment = LL_ADC_DATA_ALIGN_RIGHT;
 | |
|   ADC_InitStruct->LowPowerMode  = LL_ADC_LP_MODE_NONE;
 | |
| }
 | |
| 
 | |
| 
 | |
| /**
 | |
|   * @brief  Initialize some features of ADC group regular.
 | |
|   * @note   These parameters have an impact on ADC scope: ADC group regular.
 | |
|   *         Refer to corresponding unitary functions into
 | |
|   *         @ref ADC_LL_EF_Configuration_ADC_Group_Regular
 | |
|   *         (functions with prefix "REG").
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|   * @note   The setting of these parameters by function @ref LL_ADC_Init()
 | |
|   *         is conditioned to ADC state:
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|   *         ADC instance must be disabled.
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|   *         This condition is applied to all ADC features, for efficiency
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|   *         and compatibility over all PY32 families. However, the different
 | |
|   *         features can be set under different ADC state conditions
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|   *         (setting possible with ADC enabled without conversion on going,
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|   *         ADC enabled with conversion on going, ...)
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|   *         Each feature can be updated afterwards with a unitary function
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|   *         and potentially with ADC in a different state than disabled,
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|   *         refer to description of each function for setting
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|   *         conditioned to ADC state.
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|   * @note   After using this function, other features must be configured
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|   *         using LL unitary functions.
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|   *         The minimum configuration remaining to be done is:
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|   *          - Set ADC group regular sequencer:
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|   *            map channel on rank corresponding to channel number.
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|   *            Refer to function @ref LL_ADC_REG_SetSequencerChannels();
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|   *          - Set ADC channel sampling time
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|   *            Refer to function LL_ADC_SetChannelSamplingTime();
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|   * @note   Depending on devices and packages, DMA may not be available.
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|   *         Refer to device datasheet for DMA availability.
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|   * @param  ADCx ADC instance
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|   * @param  ADC_REG_InitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
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|   * @retval An ErrorStatus enumeration value:
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|   *          - SUCCESS: ADC registers are initialized
 | |
|   *          - ERROR: ADC registers are not initialized
 | |
|   */
 | |
| ErrorStatus LL_ADC_REG_Init(ADC_TypeDef *ADCx, LL_ADC_REG_InitTypeDef *ADC_REG_InitStruct)
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| {
 | |
|   ErrorStatus status = SUCCESS;
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| 
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|   /* Check the parameters */
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|   assert_param(IS_ADC_ALL_INSTANCE(ADCx));
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|   assert_param(IS_LL_ADC_REG_TRIG_SOURCE(ADC_REG_InitStruct->TriggerSource));
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|   assert_param(IS_LL_ADC_REG_SEQ_SCAN_DISCONT_MODE(ADC_REG_InitStruct->SequencerDiscont));
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|   assert_param(IS_LL_ADC_REG_CONTINUOUS_MODE(ADC_REG_InitStruct->ContinuousMode));
 | |
| #if (defined(DMA) || defined(DMA1))
 | |
|   assert_param(IS_LL_ADC_REG_DMA_TRANSFER(ADC_REG_InitStruct->DMATransfer));
 | |
| #endif
 | |
|   assert_param(IS_LL_ADC_REG_OVR_DATA_BEHAVIOR(ADC_REG_InitStruct->Overrun));
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| 
 | |
|   /* Note: Hardware constraint (refer to description of this function):       */
 | |
|   /*       ADC instance must be disabled.                                     */
 | |
|   if(LL_ADC_IsEnabled(ADCx) == 0U)
 | |
|   {
 | |
|     /* Configuration of ADC hierarchical scope:                               */
 | |
|     /*  - ADC group regular                                                   */
 | |
|     /*    - Set ADC group regular trigger source                              */
 | |
|     /*    - Set ADC group regular sequencer discontinuous mode                */
 | |
|     /*    - Set ADC group regular continuous mode                             */
 | |
|     /*    - Set ADC group regular conversion data transfer: no transfer or    */
 | |
|     /*      transfer by DMA, and DMA requests mode                            */
 | |
|     /*    - Set ADC group regular overrun behavior                            */
 | |
|     /* Note: On this PY32 serie, ADC trigger edge is set to value 0x0 by      */
 | |
|     /*       setting of trigger source to SW start.                           */
 | |
| 
 | |
| #if (defined(DMA) || defined(DMA1))
 | |
|     MODIFY_REG(ADCx->CFGR1,
 | |
|                ADC_CFGR1_EXTSEL
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|                | ADC_CFGR1_EXTEN
 | |
|                | ADC_CFGR1_DISCEN
 | |
|                | ADC_CFGR1_CONT
 | |
|                | ADC_CFGR1_DMAEN
 | |
|                | ADC_CFGR1_DMACFG
 | |
|                | ADC_CFGR1_OVRMOD
 | |
|                ,
 | |
|                ADC_REG_InitStruct->TriggerSource
 | |
|                | ADC_REG_InitStruct->SequencerDiscont
 | |
|                | ADC_REG_InitStruct->ContinuousMode
 | |
|                | ADC_REG_InitStruct->DMATransfer
 | |
|                | ADC_REG_InitStruct->Overrun
 | |
|               );
 | |
| #else
 | |
|     MODIFY_REG(ADCx->CFGR1,
 | |
|                ADC_CFGR1_EXTSEL
 | |
|                | ADC_CFGR1_EXTEN
 | |
|                | ADC_CFGR1_DISCEN
 | |
|                | ADC_CFGR1_CONT
 | |
|                | ADC_CFGR1_OVRMOD
 | |
|                ,
 | |
|                ADC_REG_InitStruct->TriggerSource
 | |
|                | ADC_REG_InitStruct->SequencerDiscont
 | |
|                | ADC_REG_InitStruct->ContinuousMode
 | |
|                | ADC_REG_InitStruct->Overrun
 | |
|               );
 | |
| #endif
 | |
|   }
 | |
|   else
 | |
|   {
 | |
|     /* Initialization error: ADC instance is not disabled. */
 | |
|     status = ERROR;
 | |
|   }
 | |
|   return status;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   * @brief  Set each @ref LL_ADC_REG_InitTypeDef field to default value.
 | |
|   * @note   Depending on devices and packages, DMA may not be available.
 | |
|   *         Refer to device datasheet for DMA availability.
 | |
|   * @param  ADC_REG_InitStruct Pointer to a @ref LL_ADC_REG_InitTypeDef structure
 | |
|   *                            whose fields will be set to default values.
 | |
|   * @retval None
 | |
|   */
 | |
| void LL_ADC_REG_StructInit(LL_ADC_REG_InitTypeDef *ADC_REG_InitStruct)
 | |
| {
 | |
|   /* Set ADC_REG_InitStruct fields to default values */
 | |
|   /* Set fields of ADC group regular */
 | |
|   /* Note: On this PY32 serie, ADC trigger edge is set to value 0x0 by       */
 | |
|   /*       setting of trigger source to SW start.                            */
 | |
|   ADC_REG_InitStruct->TriggerSource    = LL_ADC_REG_TRIG_SOFTWARE;
 | |
|   ADC_REG_InitStruct->SequencerDiscont = LL_ADC_REG_SEQ_DISCONT_DISABLE;
 | |
|   ADC_REG_InitStruct->ContinuousMode   = LL_ADC_REG_CONV_SINGLE;
 | |
| #if (defined(DMA) || defined(DMA1))
 | |
|   ADC_REG_InitStruct->DMATransfer      = LL_ADC_REG_DMA_TRANSFER_NONE;
 | |
| #endif
 | |
|   ADC_REG_InitStruct->Overrun          = LL_ADC_REG_OVR_DATA_OVERWRITTEN;
 | |
| }
 | |
| 
 | |
| /**
 | |
|   * @}
 | |
|   */
 | |
| 
 | |
| /**
 | |
|   * @}
 | |
|   */
 | |
| 
 | |
| /**
 | |
|   * @}
 | |
|   */
 | |
| 
 | |
| #endif /* ADC1 */
 | |
| 
 | |
| /**
 | |
|   * @}
 | |
|   */
 | |
| 
 | |
| #endif /* USE_FULL_LL_DRIVER */
 | |
| 
 | |
| /************************ (C) COPYRIGHT Puya *****END OF FILE****/
 | 
