first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
@@ -0,0 +1,116 @@
+/********************************** (C) COPYRIGHT *******************************
+ * File Name          : main.c
+ * Author             : WCH
+ * Version            : V1.0.0
+ * Date               : 2021/06/06
+ * Description        : Main program body.
+*********************************************************************************
+* Copyright (c) 2021 Nanjing Qinheng Microelectronics Co., Ltd.
+* Attention: This software (modified or not) and binary are used for 
+* microcontroller manufactured by Nanjing Qinheng Microelectronics.
+*******************************************************************************/
+
+/*
+ *@Note
+ Independent watchdog routine:
+ This routine demonstrates the pull-down input of the PA0 pin. When the input is high,
+ it will feed the dog. If you don't feed the dog,Then trigger independent watchdog reset after 3.2s.
+
+*/
+
+#include "debug.h"
+
+#define KEY0 GPIO_ReadInputDataBit( GPIOA, GPIO_Pin_0)	//PA0
+
+/*********************************************************************
+ * @fn      KEY_Init
+ *
+ * @brief   Initializes KEY GPIO.
+ *
+ * @return  none
+ */
+void KEY_Init(void)
+{
+	GPIO_InitTypeDef GPIO_InitStructure={0};
+
+	RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA, ENABLE );
+
+	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
+	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD;
+	GPIO_Init( GPIOA, &GPIO_InitStructure);
+}
+
+/*********************************************************************
+ * @fn      KEY_PRESS
+ *
+ * @brief   Key processing funcation.
+ *
+ * @return  0 - Press the key.
+ *          1 - Release Key.
+ */
+u8 KEY_PRESS(void)
+{
+	if(KEY0 == 1)
+	{
+		Delay_Ms(10);
+		return 1;
+	}
+
+	return 0;
+}
+
+/*********************************************************************
+ * @fn      IWDG_Init
+ *
+ * @brief   Initializes IWDG.
+ *
+ * @param   IWDG_Prescaler: specifies the IWDG Prescaler value.
+ *            IWDG_Prescaler_4: IWDG prescaler set to 4.
+ *            IWDG_Prescaler_8: IWDG prescaler set to 8.
+ *            IWDG_Prescaler_16: IWDG prescaler set to 16.
+ *            IWDG_Prescaler_32: IWDG prescaler set to 32.
+ *            IWDG_Prescaler_64: IWDG prescaler set to 64.
+ *            IWDG_Prescaler_128: IWDG prescaler set to 128.
+ *            IWDG_Prescaler_256: IWDG prescaler set to 256.
+ *          Reload: specifies the IWDG Reload value.
+ *            This parameter must be a number between 0 and 0x0FFF.
+ *
+ * @return  none
+ */
+void IWDG_Feed_Init(u16 prer, u16 rlr)
+{
+	IWDG_WriteAccessCmd(IWDG_WriteAccess_Enable);
+	IWDG_SetPrescaler(prer);
+	IWDG_SetReload(rlr);
+	IWDG_ReloadCounter();
+	IWDG_Enable();
+}
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+	USART_Printf_Init(115200);
+	printf("SystemClk:%d\r\n",SystemCoreClock);
+
+  Delay_Init();
+	KEY_Init();
+	printf("IWDG test...\r\n");
+	Delay_Ms(1000);
+
+	IWDG_Feed_Init( IWDG_Prescaler_32, 4000 );   // 3.2s IWDG reset
+
+	while(1)
+	{
+		if( KEY_PRESS() == 1 )	//PA0
+		{
+			printf("Feed dog\r\n");
+	    IWDG_ReloadCounter();	//Feed dog
+			Delay_Ms(10);
+		}
+	}
+}