initial commit

1 files changed, 257 insertions, 0 deletions

diff --git a/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_comp.c b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_comp.c
new file mode 100644
index 0000000..77c2f0b
--- /dev/null
+++ b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_comp.c
@@ -0,0 +1,257 @@
+/**
+  ******************************************************************************
+  * @file    stm32u0xx_ll_comp.c
+  * @author  MCD Application Team
+  * @brief   COMP LL module driver
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+
+#if defined(USE_FULL_LL_DRIVER)
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32u0xx_ll_comp.h"
+
+#ifdef  USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+/** @addtogroup STM32U0xx_LL_Driver
+  * @{
+  */
+
+#if defined (COMP1) || defined (COMP2)
+
+/** @addtogroup COMP_LL COMP
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+
+/** @addtogroup COMP_LL_Private_Macros
+  * @{
+  */
+
+/* Check of parameters for configuration of COMP hierarchical scope:          */
+/* COMP instance.                                                             */
+
+#define IS_LL_COMP_POWER_MODE(__POWER_MODE__)                                  \
+  (((__POWER_MODE__) == LL_COMP_POWERMODE_HIGHSPEED)                           \
+   || ((__POWER_MODE__) == LL_COMP_POWERMODE_MEDIUMSPEED)                      \
+  )
+
+#define IS_LL_COMP_INPUT_PLUS(__COMP_INSTANCE__, __INPUT_PLUS__)               \
+  (((__COMP_INSTANCE__) == COMP1)                                              \
+   ? (((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) ||                          \
+      ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) ||                          \
+      ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO3) ||                          \
+      ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO4) ||                          \
+      ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO5)   )                         \
+   :                                                                           \
+   (((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO1) ||                            \
+    ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO2) ||                            \
+    ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO3) ||                            \
+    ((__INPUT_PLUS__) == LL_COMP_INPUT_PLUS_IO4)   )                           \
+  )
+
+/* Note: On this STM32 series, comparator input minus parameters are          */
+/*       the same on all COMP instances.                                      */
+/*       However, comparator instance kept as macro parameter for             */
+/*       compatibility with other STM32 series.                               */
+#define IS_LL_COMP_INPUT_MINUS(__COMP_INSTANCE__, __INPUT_MINUS__)             \
+  (((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_4VREFINT)                       \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_1_2VREFINT)                    \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_3_4VREFINT)                    \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_VREFINT)                       \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_DAC1_CH1)                      \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO1)                           \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO2)                           \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO3)                           \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO4)                           \
+   || ((__INPUT_MINUS__) == LL_COMP_INPUT_MINUS_IO5)                           \
+  )
+
+#define IS_LL_COMP_INPUT_HYSTERESIS(__INPUT_HYSTERESIS__)                      \
+  (((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_NONE)                         \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_LOW)                       \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_MEDIUM)                    \
+   || ((__INPUT_HYSTERESIS__) == LL_COMP_HYSTERESIS_HIGH)                      \
+  )
+
+#define IS_LL_COMP_OUTPUT_POLARITY(__POLARITY__)                               \
+  (((__POLARITY__) == LL_COMP_OUTPUTPOL_NONINVERTED)                           \
+   || ((__POLARITY__) == LL_COMP_OUTPUTPOL_INVERTED)                           \
+  )
+
+#define IS_LL_COMP_OUTPUT_BLANKING_SOURCE(__OUTPUT_BLANKING_SOURCE__)                    \
+  (((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_NONE)                            \
+   || ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC4)                     \
+   || ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM1_OC5)                     \
+   || ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM2_OC3)                     \
+   || ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM3_OC3)                     \
+   || ((__OUTPUT_BLANKING_SOURCE__) == LL_COMP_BLANKINGSRC_TIM15_OC2)                    \
+  )
+/**
+  * @}
+  */
+
+
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup COMP_LL_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup COMP_LL_EF_Init
+  * @{
+  */
+
+/**
+  * @brief  De-initialize registers of the selected COMP instance
+  *         to their default reset values.
+  * @note   If comparator is locked, de-initialization by software is
+  *         not possible.
+  *         The only way to unlock the comparator is a device hardware reset.
+  * @param  COMPx COMP instance
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: COMP registers are de-initialized
+  *          - ERROR: COMP registers are not de-initialized
+  */
+ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx)
+{
+  ErrorStatus status = SUCCESS;
+
+  /* Check the parameters */
+  assert_param(IS_COMP_ALL_INSTANCE(COMPx));
+
+  /* Note: Hardware constraint (refer to description of this function):       */
+  /*       COMP instance must not be locked.                                  */
+  if (LL_COMP_IsLocked(COMPx) == 0UL)
+  {
+    LL_COMP_WriteReg(COMPx, CSR, 0x00000000UL);
+
+  }
+  else
+  {
+    /* Comparator instance is locked: de-initialization by software is         */
+    /* not possible.                                                           */
+    /* The only way to unlock the comparator is a device hardware reset.       */
+    status = ERROR;
+  }
+
+  return status;
+}
+
+/**
+  * @brief  Initialize some features of COMP instance.
+  * @note   This function configures features of the selected COMP instance.
+  *         Some features are also available at scope COMP common instance
+  *         (common to several COMP instances).
+  *         Refer to functions having argument "COMPxy_COMMON" as parameter.
+  * @param  COMPx COMP instance
+  * @param  COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: COMP registers are initialized
+  *          - ERROR: COMP registers are not initialized
+  */
+ErrorStatus LL_COMP_Init(COMP_TypeDef *COMPx, const LL_COMP_InitTypeDef *COMP_InitStruct)
+{
+  ErrorStatus status = SUCCESS;
+
+  /* Check the parameters */
+  assert_param(IS_COMP_ALL_INSTANCE(COMPx));
+  assert_param(IS_LL_COMP_POWER_MODE(COMP_InitStruct->PowerMode));
+  assert_param(IS_LL_COMP_INPUT_PLUS(COMPx, COMP_InitStruct->InputPlus));
+  assert_param(IS_LL_COMP_INPUT_MINUS(COMPx, COMP_InitStruct->InputMinus));
+  assert_param(IS_LL_COMP_INPUT_HYSTERESIS(COMP_InitStruct->InputHysteresis));
+  assert_param(IS_LL_COMP_OUTPUT_POLARITY(COMP_InitStruct->OutputPolarity));
+  assert_param(IS_LL_COMP_OUTPUT_BLANKING_SOURCE(COMP_InitStruct->OutputBlankingSource));
+
+  /* Note: Hardware constraint (refer to description of this function)        */
+  /*       COMP instance must not be locked.                                  */
+  if (LL_COMP_IsLocked(COMPx) == 0UL)
+  {
+    /* Configuration of comparator instance :                                 */
+    /*  - PowerMode                                                           */
+    /*  - InputPlus                                                           */
+    /*  - InputMinus                                                          */
+    /*  - InputHysteresis                                                     */
+    /*  - OutputPolarity                                                      */
+    /*  - OutputBlankingSource                                                */
+    MODIFY_REG(COMPx->CSR,
+               COMP_CSR_PWRMODE
+               | COMP_CSR_INPSEL
+               | COMP_CSR_INMSEL
+               | COMP_CSR_HYST
+               | COMP_CSR_POLARITY
+               | COMP_CSR_BLANKSEL
+               ,
+               COMP_InitStruct->PowerMode
+               | COMP_InitStruct->InputPlus
+               | COMP_InitStruct->InputMinus
+               | COMP_InitStruct->InputHysteresis
+               | COMP_InitStruct->OutputPolarity
+               | COMP_InitStruct->OutputBlankingSource
+              );
+
+  }
+  else
+  {
+    /* Initialization error: COMP instance is locked.                         */
+    status = ERROR;
+  }
+
+  return status;
+}
+
+/**
+  * @brief Set each @ref LL_COMP_InitTypeDef field to default value.
+  * @param COMP_InitStruct Pointer to a @ref LL_COMP_InitTypeDef structure
+  *                        whose fields will be set to default values.
+  * @retval None
+  */
+void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct)
+{
+  /* Set COMP_InitStruct fields to default values */
+  COMP_InitStruct->PowerMode            = LL_COMP_POWERMODE_MEDIUMSPEED;
+  COMP_InitStruct->InputPlus            = LL_COMP_INPUT_PLUS_IO1;
+  COMP_InitStruct->InputMinus           = LL_COMP_INPUT_MINUS_VREFINT;
+  COMP_InitStruct->InputHysteresis      = LL_COMP_HYSTERESIS_NONE;
+  COMP_InitStruct->OutputPolarity       = LL_COMP_OUTPUTPOL_NONINVERTED;
+  COMP_InitStruct->OutputBlankingSource = LL_COMP_BLANKINGSRC_NONE;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* COMP1 || COMP2 */
+
+/**
+  * @}
+  */
+
+#endif /* USE_FULL_LL_DRIVER */