first submission

2023-02-01 14:19:13 +08:00
parent d534aad004
commit b79c6ac80d
3711 changed files with 745432 additions and 2 deletions
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+/********************************** (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
+ MCO pin clock output routine:
+ MCO(PA8)
+ This example demonstrates that the MCO(PA8) pin outputs the system clock.
+
+*/
+
+#include "debug.h"
+
+/*********************************************************************
+ * @fn      main
+ *
+ * @brief   Main program.
+ *
+ * @return  none
+ */
+int main(void)
+{
+  GPIO_InitTypeDef  GPIO_InitStructure={0};
+
+	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
+	USART_Printf_Init(115200);
+	printf("SystemClk:%d\r\n",SystemCoreClock);
+
+  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
+
+	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
+  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+  GPIO_Init(GPIOA, &GPIO_InitStructure);
+
+/* MCO Output GPIOA 8 */
+	RCC_MCOConfig( RCC_MCO_SYSCLK );
+
+	while(1);
+}