initial commit

1 files changed, 198 insertions, 0 deletions

diff --git a/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_lptim.c b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_lptim.c
new file mode 100644
index 0000000..b6b7423
--- /dev/null
+++ b/Drivers/STM32U0xx_HAL_Driver/Src/stm32u0xx_ll_lptim.c
@@ -0,0 +1,198 @@
+/**
+  ******************************************************************************
+  * @file    stm32u0xx_ll_lptim.c
+  * @author  MCD Application Team
+  * @brief   LPTIM 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_lptim.h"
+#include "stm32u0xx_ll_bus.h"
+#include "stm32u0xx_ll_rcc.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 (LPTIM1) || defined (LPTIM2) || defined (LPTIM3)
+
+/** @addtogroup LPTIM_LL
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/** @addtogroup LPTIM_LL_Private_Macros
+  * @{
+  */
+#define IS_LL_LPTIM_CLOCK_SOURCE(__VALUE__) (((__VALUE__) == LL_LPTIM_CLK_SOURCE_INTERNAL) \
+                                             || ((__VALUE__) == LL_LPTIM_CLK_SOURCE_EXTERNAL))
+
+#define IS_LL_LPTIM_CLOCK_PRESCALER(__VALUE__) (((__VALUE__) == LL_LPTIM_PRESCALER_DIV1)   \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV2)   \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV4)   \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV8)   \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV16)  \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV32)  \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV64)  \
+                                                || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV128))
+
+#define IS_LL_LPTIM_WAVEFORM(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_PWM) \
+                                         || ((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_SETONCE))
+
+/**
+  * @}
+  */
+
+
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+/** @defgroup LPTIM_Private_Functions LPTIM Private Functions
+  * @{
+  */
+/**
+  * @}
+  */
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup LPTIM_LL_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup LPTIM_LL_EF_Init
+  * @{
+  */
+
+/**
+  * @brief  Set LPTIMx registers to their reset values.
+  * @param  LPTIMx LP Timer instance
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: LPTIMx registers are de-initialized
+  *          - ERROR: invalid LPTIMx instance
+  */
+ErrorStatus LL_LPTIM_DeInit(const LPTIM_TypeDef *LPTIMx)
+{
+  ErrorStatus result = SUCCESS;
+
+  /* Check the parameters */
+  assert_param(IS_LPTIM_INSTANCE(LPTIMx));
+
+  if (LPTIMx == LPTIM1)
+  {
+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM1);
+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM1);
+  }
+  else if (LPTIMx == LPTIM2)
+  {
+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM2);
+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM2);
+  }
+#if defined(LPTIM3)
+  else if (LPTIMx == LPTIM3)
+  {
+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM3);
+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM3);
+  }
+#endif /* LPTIM3 */
+  else
+  {
+    result = ERROR;
+  }
+
+  return result;
+}
+
+/**
+  * @brief  Set each fields of the LPTIM_InitStruct structure to its default
+  *         value.
+  * @param  LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
+  * @retval None
+  */
+void LL_LPTIM_StructInit(LL_LPTIM_InitTypeDef *LPTIM_InitStruct)
+{
+  /* Set the default configuration */
+  LPTIM_InitStruct->ClockSource = LL_LPTIM_CLK_SOURCE_INTERNAL;
+  LPTIM_InitStruct->Prescaler   = LL_LPTIM_PRESCALER_DIV1;
+  LPTIM_InitStruct->Waveform    = LL_LPTIM_OUTPUT_WAVEFORM_PWM;
+}
+
+/**
+  * @brief  Configure the LPTIMx peripheral according to the specified parameters.
+  * @note LL_LPTIM_Init can only be called when the LPTIM instance is disabled.
+  * @note LPTIMx can be disabled using unitary function @ref LL_LPTIM_Disable().
+  * @param  LPTIMx LP Timer Instance
+  * @param  LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: LPTIMx instance has been initialized
+  *          - ERROR: LPTIMx instance hasn't been initialized
+  */
+ErrorStatus LL_LPTIM_Init(LPTIM_TypeDef *LPTIMx, const LL_LPTIM_InitTypeDef *LPTIM_InitStruct)
+{
+  ErrorStatus result = SUCCESS;
+  /* Check the parameters */
+  assert_param(IS_LPTIM_INSTANCE(LPTIMx));
+  assert_param(IS_LL_LPTIM_CLOCK_SOURCE(LPTIM_InitStruct->ClockSource));
+  assert_param(IS_LL_LPTIM_CLOCK_PRESCALER(LPTIM_InitStruct->Prescaler));
+  assert_param(IS_LL_LPTIM_WAVEFORM(LPTIM_InitStruct->Waveform));
+
+  /* The LPTIMx_CFGR register must only be modified when the LPTIM is disabled
+     (ENABLE bit is reset to 0).
+  */
+  if (LL_LPTIM_IsEnabled(LPTIMx) == 1UL)
+  {
+    result = ERROR;
+  }
+  else
+  {
+    /* Set CKSEL bitfield according to ClockSource value */
+    /* Set PRESC bitfield according to Prescaler value */
+    /* Set WAVE bitfield according to Waveform value */
+    MODIFY_REG(LPTIMx->CFGR,
+               (LPTIM_CFGR_CKSEL | LPTIM_CFGR_PRESC | LPTIM_CFGR_WAVE),
+               LPTIM_InitStruct->ClockSource | \
+               LPTIM_InitStruct->Prescaler | \
+               LPTIM_InitStruct->Waveform);
+  }
+
+  return result;
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* LPTIM1 || LPTIM2 ||  LPTIM3 */
+
+/**
+  * @}
+  */
+
+#endif /* USE_FULL_LL_DRIVER */