bstanwell/ch32v20x-examples
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update 1.8

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qiyongshuang
2023-09-06 10:08:11 +08:00
parent b79c6ac80d
commit 64be955461
760 changed files with 42517 additions and 30957 deletions
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EVT/EXAM/RCC/MCO/User/main.c
+17 -16
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@@ -4,19 +4,19 @@
* 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.
*******************************************************************************/
*********************************************************************************
* 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.
*/
*MCO pin clock output routine:
*MCO(PA8)
*This example demonstrates that the MCO(PA8) pin outputs the system clock.
*
*/
#include "debug.h"
@@ -29,18 +29,19 @@
*/
int main(void)
{
GPIO_InitTypeDef GPIO_InitStructure={0};
GPIO_InitTypeDef GPIO_InitStructure={0};
SystemCoreClockUpdate();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
USART_Printf_Init(115200);
printf("SystemClk:%d\r\n",SystemCoreClock);
printf( "ChipID:%08x\r\n", DBGMCU_GetCHIPID() );
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
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);
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 );