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本帖最后由 zhou__mi 于 2020-6-22 19:21 编辑
程序代码：
//Pass at AS-07 V2.0,ZhouYinxiang,1881003@qq.com,20171009,9:55
//Pass at PROTEUS 8.7,ZhouYinxiang,1881003@qq.com,20181118,11:31
//实验内容和现象：
//（1）配置时钟RCC；
//（2）配置中断NVIC；
//（3）设置全部GPIO为Analog Input mode，降低功耗和提高EMI/EMC；
//（4）使能GPIOA的时钟，设置PA5为GPIO_Mode_Out_PP 50MHz;使能GPIOC的时钟，设置PC6和PC7为GPIO_Mode_Out_PP 50MHz；
//（5）LCD显示实验信息，没有学习LCD之前，请忽略；
//（5）流水灯程序：PC6驱动LED1、PC7驱动LED2、PA5驱动LED3依次点亮、延时、熄灭，形成亮流水效果。
// 说明：程序源于STM3210E-EVAL，请看本project的readme.txt
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
* File Name : main.c
* Author : MCD Application Team
* Version : V2.0.1
* Date : 06/13/2008
* Description : Main program body.
********************************************************************************
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
* CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
*******************************************************************************/
/* Includes ------------------------------------------------------------------*/
#include "stm32f10x_lib.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
GPIO_InitTypeDef GPIO_InitStructure;
ErrorStatus HSEStartUpStatus;
/* Private function prototypes -----------------------------------------------*/
void RCC_Configuration(void);
void NVIC_Configuration(void);
void Delay(vu32 nCount);
/* Private functions ---------------------------------------------------------*/
/*******************************************************************************
* Function Name : main
* Description : Main program.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
#ifdef DEBUG
debug();
#endif
//（1）配置时钟RCC；
/* System Clocks Configuration **********************************************/
RCC_Configuration();
//（2）配置中断NVIC；
/* NVIC Configuration *******************************************************/
NVIC_Configuration();
////（3）设置全部GPIO为Analog Input mode，降低功耗和提高EMI/EMC；
// /* Configure all unused GPIO port pins in Analog Input mode (floating input
// trigger OFF), this will reduce the power consumption and increase the device
// immunity against EMI/EMC *************************************************/
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
// RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD |
// RCC_APB2Periph_GPIOE, ENABLE); //使能所有的端口时钟
//
// GPIO_InitStructure.GPIO_Pin = GPIO_Pin_All; //选择设置所有的端口位
// GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; //模拟输入模式
// GPIO_Init(GPIOA, &GPIO_InitStructure); //初始化端口GPIOA
// GPIO_Init(GPIOB, &GPIO_InitStructure); //初始化端口GPIOB
// GPIO_Init(GPIOC, &GPIO_InitStructure); //初始化端口GPIOC
// GPIO_Init(GPIOD, &GPIO_InitStructure); //初始化端口GPIOD
// GPIO_Init(GPIOE, &GPIO_InitStructure); //初始化端口GPIOE
//
// RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB |
// RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD |
// RCC_APB2Periph_GPIOE, DISABLE); //失能(关闭)所有的端口时钟
//（4）使能GPIOA的时钟，设置PA5为GPIO_Mode_Out_PP 50MHz;使能GPIOC的时钟，设置PC6和PC7为GPIO_Mode_Out_PP 50MHz；
/* Configure IO connected to LED1, LED2, LED3 leds *********************/
/* Enable GPIOC clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); //使能GPIOA的时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); //使能GPIOC的时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_7;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOC, &GPIO_InitStructure); //初始化PC6和PC7为50MHz推拉输出
//（5）流水灯程序：PC6驱动LED1、PC7驱动LED2、PA5驱动LED3依次点亮、延时、熄灭，形成亮流水效果。
while (1)
{
/* Turn on LED1 */
GPIO_SetBits(GPIOC, GPIO_Pin_6); //PC6输出高电平1，驱动LED1点亮
/* Insert delay */
Delay(0xAFFFF); //延时一会儿（0.05038140-0.00031892 = 0.05006248s = 50ms）
/* Turn off LED1 */
GPIO_ResetBits(GPIOC, GPIO_Pin_6); //PC6输出低电平0，驱动LED1熄灭
/* Insert delay */
Delay(0xAFFFF); //延时一会儿（0.10044386-0.05038154 = 0.05006263s = 50ms）
/* Turn on LED2 */
GPIO_SetBits(GPIOC, GPIO_Pin_7); //PC7输出高电平1，驱动LED2点亮
/* Insert delay */
Delay(0xAFFFF); //延时一会
/* Turn off LED2*/
GPIO_ResetBits(GPIOC, GPIO_Pin_7); //PC7输出低电平0，驱动LED2熄灭
/* Insert delay */
Delay(0xAFFFF); //延时一会
/* Turn on LED3 */
GPIO_SetBits(GPIOA, GPIO_Pin_5); //PA5输出高电平1，驱动LED3点亮
/* Insert delay */
Delay(0xAFFFF); //延时一会
/* Turn off LED3 */
GPIO_ResetBits(GPIOA, GPIO_Pin_5); //PA5输出低电平0，驱动LED3熄灭
/* Insert delay */
Delay(0xAFFFF); //延时一会
}
}
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