From 1a1312214a9d7e3b708e7bc0ac35de5f4f885af2 Mon Sep 17 00:00:00 2001
From: YunHorn Technology <dp.s@yunhorn.com>
Date: Fri, 16 May 2025 14:23:05 +0800
Subject: [PATCH] add iwdg source

---
 Core/Inc/iwdg.h | 56 +++++++++++++++++++++++++++++++++++++++++++++++++
 Core/Src/iwdg.c | 46 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 102 insertions(+)
 create mode 100644 Core/Inc/iwdg.h
 create mode 100644 Core/Src/iwdg.c

diff --git a/Core/Inc/iwdg.h b/Core/Inc/iwdg.h
new file mode 100644
index 0000000..7cc27c9
--- /dev/null
+++ b/Core/Inc/iwdg.h
@@ -0,0 +1,56 @@
+/**
+  ******************************************************************************
+  * File Name          : IWDG.h
+  * Description        : This file provides code for the configuration
+  *                      of the IWDG instances.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * 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
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __iwdg_H
+#define __iwdg_H
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_IWDG_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*__ iwdg_H */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/Core/Src/iwdg.c b/Core/Src/iwdg.c
new file mode 100644
index 0000000..738733d
--- /dev/null
+++ b/Core/Src/iwdg.c
@@ -0,0 +1,46 @@
+/**
+  ******************************************************************************
+  * File Name          : IWDG.c
+  * Description        : This file provides code for the configuration
+  *                      of the IWDG instances.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * 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
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+
+/* Includes ------------------------------------------------------------------*/
+#include "iwdg.h"
+extern IWDG_HandleTypeDef hiwdg;
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/* IWDG init function */
+void MX_IWDG_Init(void)
+{
+
+	hiwdg.Instance = IWDG;
+    hiwdg.Init.Prescaler = IWDG_PRESCALER_256;		// 32k -> 30 seconds
+    //hiwdg.Init.Window = 0x0FFF;
+    hiwdg.Init.Window = IWDG_WINDOW_DISABLE;
+    hiwdg.Init.Reload = 0x0FFF;
+    if (HAL_IWDG_Init(&hiwdg) != HAL_OK)
+    {
+      Error_Handler();
+    }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/