From 86608c6770cf08c138a2bdab5855072f64be09ef Mon Sep 17 00:00:00 2001
From: joshua <joshua@joshuayun.com>
Date: Sat, 30 Dec 2023 23:54:31 -0500
Subject: initial commit

---
 .../STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c    | 111 +++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c

(limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c')

diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c
new file mode 100644
index 0000000..9b7979b
--- /dev/null
+++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_crc.c
@@ -0,0 +1,111 @@
+/**
+  ******************************************************************************
+  * @file    stm32h7xx_ll_crc.c
+  * @author  MCD Application Team
+  * @brief   CRC LL module driver.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2017 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 "stm32h7xx_ll_crc.h"
+#include "stm32h7xx_ll_bus.h"
+
+#ifdef  USE_FULL_ASSERT
+#include "stm32_assert.h"
+#else
+#define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+/** @addtogroup STM32H7xx_LL_Driver
+  * @{
+  */
+
+#if defined (CRC)
+
+/** @addtogroup CRC_LL
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private constants ---------------------------------------------------------*/
+/* Private macros ------------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @addtogroup CRC_LL_Exported_Functions
+  * @{
+  */
+
+/** @addtogroup CRC_LL_EF_Init
+  * @{
+  */
+
+/**
+  * @brief  De-initialize CRC registers (Registers restored to their default values).
+  * @param  CRCx CRC Instance
+  * @retval An ErrorStatus enumeration value:
+  *          - SUCCESS: CRC registers are de-initialized
+  *          - ERROR: CRC registers are not de-initialized
+  */
+ErrorStatus LL_CRC_DeInit(CRC_TypeDef *CRCx)
+{
+  ErrorStatus status = SUCCESS;
+
+  /* Check the parameters */
+  assert_param(IS_CRC_ALL_INSTANCE(CRCx));
+
+  if (CRCx == CRC)
+  {
+#if defined(LL_AHB4_GRP1_PERIPH_CRC)
+    /* Force CRC reset */
+    LL_AHB4_GRP1_ForceReset(LL_AHB4_GRP1_PERIPH_CRC);
+
+    /* Release CRC reset */
+    LL_AHB4_GRP1_ReleaseReset(LL_AHB4_GRP1_PERIPH_CRC);
+#else
+    /* Force CRC reset */
+    LL_AHB1_GRP1_ForceReset(LL_AHB1_GRP1_PERIPH_CRC);
+
+    /* Release CRC reset */
+    LL_AHB1_GRP1_ReleaseReset(LL_AHB1_GRP1_PERIPH_CRC);
+#endif /*LL_AHB4_GRP1_PERIPH_CRC)*/
+  }
+  else
+  {
+    status = ERROR;
+  }
+
+  return (status);
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#endif /* defined (CRC) */
+
+/**
+  * @}
+  */
+
+#endif /* USE_FULL_LL_DRIVER */
-- 
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