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电子产品世界 » 论坛首页 » 高校专区 » 漓东e学堂 » 21号的作业，burden只能扔这里了。【更新：时钟嘀嗒和18B20】

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菜鸟

2014-10-26 23:08:18 打赏

11楼

我试着把按键记数在main函数计算好，然后通过一个形式参数传到void里面，解决了。

那老师我要不要把动态扫描弄慢点拍个新视频，顺便把新整理的代码再放上来？

评论

菜鸟

2014-10-27 13:15:14 打赏

12楼

视频地址：http://player.youku.com/player.php/sid/XODEyNDEzOTA0/v.swf

/**
  ******************************************************************************
  * @file    GPIO/IOToggle/main.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main program body.
  ******************************************************************************
  * @attention
  *
  * 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.
  *
  *

	© COPYRIGHT 2011 STMicroelectronics

******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
GPIO_InitTypeDef GPIO_InitStructure;

void RCC_Configuration(void)
{
  RCC_DeInit();
    
  RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
  
  RCC_HSEConfig(RCC_HSE_OFF);
  RCC_LSEConfig(RCC_LSE_OFF);
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz
  RCC_PLLCmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);
}

void GPIO_INIT()
{
  //GPIOB(数码管)初始化
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOB, &GPIO_InitStructure);
	
  //按键初始化 
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10|GPIO_Pin_11;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
}
//微秒延时
void delay_us(u32 n)
{
	u8 j;
	while(n--)
	for(j=0;j<10;j++);
}
//毫秒延时
void  delay_ms(u32 n)
{
	while(n--)
	delay_us(1000);
}


/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
void Mode1(int i){//S1按键次数
		if(i>15){i=0;}
		   GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		   GPIO_SetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14);
		switch(i){
		 case 0 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		 break;
		 case 1 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 2 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		 break;
		 case 3 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		 break;
		 case 4 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 5 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 6 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 7 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 8 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14);
		 break;
		 case 9 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14);
		 break;
		 case 10 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 11 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 12 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 13 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 14 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 15 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		}
	}

void Mode2(int i){//S2按键次数
		if(i>15){i=0;}
		   GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		   GPIO_SetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14);
		switch(i){
		 case 0 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		 break;
		 case 1 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 2 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		 break;
		 case 3 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		 break;
		 case 4 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 5 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 6 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8|GPIO_Pin_5);
		 break;
		 case 7 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 8 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14);
		 break;
		 case 9 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14);
		 break;
		 case 10 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_8);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 11 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 12 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_14|GPIO_Pin_13|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 13 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 14 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		 case 15 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_12|GPIO_Pin_14|GPIO_Pin_8|GPIO_Pin_5);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		                 delay_ms(200);
		                 GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		                 GPIO_SetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		 break;
		}
	}

int main(void)
{   
	  int i = 0;
           int count1 = 0, count2 = 0;//设置两个按键次数参数
	  RCC_Configuration();   
                  GPIO_INIT();
	  GPIO_SetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14);
	  while(1){
		    if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_10))//S3键按下
                {delay_ms(80);
               if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_10)){i++;}} //S3键处于按下时，i+1
		switch(i%2){  //i求余
		 case 0 : //i为偶数
			 {	 if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_8))//S1键按下
           {delay_ms(80);
           if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_8)){count1++;}}//S1键处于按下时，count1+1
			     if(count1>15){count1=0;}//如果S1按键次数超过15次，count2归0
			     Mode1(count1);}//进入S1按键记数
		 break;
		 case 1 : //i为奇数
			 {	 if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_9))//S2键按下
           {delay_ms(80);
           if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_9)){count2++;}}//S2键处于按下时，count2+1
			     if(count2>15){count2=0;}//如果S2按键次数超过15次，count2归0
			     Mode2(count2);}//进入S2按键记数
		 break;
		}
	}
}

新的代码把两个记数程序声明成两个函数模块，然后在main函数调用，看起来更加简洁。

同时也把S2键在按下次数为双位数时，数码管的动态扫描延时增加。

评论

菜鸟

2014-10-27 13:20:25 打赏

13楼

已更新

评论

菜鸟

2014-10-28 10:29:29 打赏

14楼

burden待的宿舍哪里会像学霸你那的安静。。有静音不关，反正不是我的锅

评论

菜鸟

2014-10-28 13:57:17 打赏

15楼

我这种博登哪里像你，可以用标识位，不用switch语句啊。

评论

菜鸟

2014-11-07 00:16:38 打赏

16楼

视频地址：http://player.youku.com/player.php/sid/XODIwODM1MDY0/v.swf

暂时只能实现数码管显示数字，但没法在不熄灭数码管状态下输入数据时变换。

代码先不放，再想想再想想。。头痛

评论

菜鸟

2014-11-12 15:00:25 打赏

17楼

试着把写个函数，通过返回参数，想在主函数里面读取

但数码管输入数据后只显示0

应该是主函数没读取到字符串，一直头痛在这里。

评论

菜鸟

2014-11-27 22:18:46 打赏

18楼

视频地址：http://player.youku.com/player.php/sid/XODM2NjEwMzQ4/v.swf

/**
  ******************************************************************************
  * @file    EXTI/EXTI_Config/main.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * 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.
  *
  *

	© COPYRIGHT 2011 STMicroelectronics

******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include 
/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */

/** @addtogroup EXTI_Config
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
EXTI_InitTypeDef   EXTI_InitStructure;
GPIO_InitTypeDef   GPIO_InitStructure;
NVIC_InitTypeDef   NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
/* Private function prototypes -----------------------------------------------*/
void EXTIkeyS1_Config(void);
void EXTIkeyS2_Config(void);
void EXTIkeyS3_Config(void);
void EXTIkeyS4_Config(void);
void RCC_Configuration(void)
{
  RCC_DeInit();
    
  RCC_HSICmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_HSIRDY) == RESET);
  
  RCC_SYSCLKConfig(RCC_SYSCLKSource_HSI);
  
  RCC_HSEConfig(RCC_HSE_OFF);
  RCC_LSEConfig(RCC_LSE_OFF);
  RCC_PLLConfig(RCC_PLLSource_HSI_Div2,RCC_PLLMul_9); //  72HMz
  RCC_PLLCmd(ENABLE);
  while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET);
  RCC_ADCCLKConfig(RCC_PCLK2_Div4);
  RCC_PCLK2Config(RCC_HCLK_Div1);
  RCC_PCLK1Config(RCC_HCLK_Div2);
  RCC_HCLKConfig(RCC_SYSCLK_Div1);
  RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
  while(RCC_GetSYSCLKSource() != 0x08);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
}

void USART_int(long BaudRate)
{
	  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//??????
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????1
  USART_InitStructure.USART_Parity = USART_Parity_No;//????
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????none
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//??????????
	USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;     
  USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      
  USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;      
  USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
  USART_ClockInit(USART1, &USART_ClockInitStructure);
  USART_Init(USART1, &USART_InitStructure);
  USART_Cmd(USART1, ENABLE);
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
  USART_Cmd(USART1, ENABLE);
 
  /* Configure four bit for preemption priority */
  NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);
  /* Enable the USART1 Interrupt */
  NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; //
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

void EXTIkeyS1_Config(void)
{
  /* Enable GPIOA clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
  
  /* Configure PA.00 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOA, &GPIO_InitStructure);

  /* Enable AFIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);

  /* Connect EXTI0 Line to PA.00 pin */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource8);

  /* Configure EXTI0 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line8;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;  
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  /* Enable and set EXTI0 Interrupt to the lowest priority */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
  NVIC_Init(&NVIC_InitStructure);
}

/**
  * @brief  Configure PB.09 or PG.08 in interrupt mode
  * @param  None
  * @retval None
  */
void EXTIkeyS2_Config(void)
{
  /* Enable GPIOB clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

  /* Configure PB.09 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* Enable AFIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
  /* Connect EXTI9 Line to PB.09 pin */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource9);

  /* Configure EXTI9 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line9;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  /* Enable and set EXTI9_5 Interrupt to the lowest priority */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI9_5_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

  NVIC_Init(&NVIC_InitStructure);
}

void EXTIkeyS3_Config(void)
{
  /* Enable GPIOB clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

  /* Configure PB.10 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* Enable AFIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
  /* Connect EXTI9 Line to PB.10 pin */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource10);

  /* Configure EXTI10 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line10;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  /* Enable and set EXTI15_10 Interrupt to the lowest priority */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

  NVIC_Init(&NVIC_InitStructure);
}

void EXTIkeyS4_Config(void)
{
  /* Enable GPIOB clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);

  /* Configure PB.11 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOC, &GPIO_InitStructure);

  /* Enable AFIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
  /* Connect EXTI11 Line to PB.11 pin */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, GPIO_PinSource11);

  /* Configure EXTI11 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line11;
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);

  /* Enable and set EXTI15_10 Interrupt to the lowest priority */
  NVIC_InitStructure.NVIC_IRQChannel = EXTI15_10_IRQn;
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

  NVIC_Init(&NVIC_InitStructure);
}

/* Private functions ---------------------------------------------------------*/

/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{
  RCC_Configuration();
  EXTIkeyS1_Config();
  EXTIkeyS2_Config();
	EXTIkeyS3_Config();
	EXTIkeyS4_Config();
  USART_int(115200);
	printf(" 请进行中断
\n");
          
  while (1)
  {
  }
}

/**
  * @brief  Configure PA.00 in interrupt mode
  * @param  None
  * @retval None
  */

/******************************************************************************/
/*            STM32F10x Peripherals Interrupt Handlers                        */
/******************************************************************************/

/**
  * @brief  This function handles External lines 9 to 5 interrupt request.
  * @param  None
  * @retval None
  */
void EXTI9_5_IRQHandler(void)
{
  if(EXTI_GetITStatus(EXTI_Line9) != RESET)
  {
     GPIO_SetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
     printf("S2键中断
\n");
    EXTI_ClearITPendingBit(EXTI_Line9);
  }
	if(EXTI_GetITStatus(EXTI_Line8) != RESET)
  {
     GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3);
     printf("S1键中断
\n");
    EXTI_ClearITPendingBit(EXTI_Line8);
  }
}

void EXTI15_10_IRQHandler(void)
{
			if(EXTI_GetITStatus(EXTI_Line10) != RESET)
  {
     GPIO_ResetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3);
     printf("S3键中断
\n");
    EXTI_ClearITPendingBit(EXTI_Line10);
  }
		if(EXTI_GetITStatus(EXTI_Line11) != RESET)
  {
     GPIO_ResetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
     printf("S4键中断
\n");
    EXTI_ClearITPendingBit(EXTI_Line11);
  }
}
#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/**
  * @}
  */ 

/**
  * @}
  */ 

#ifdef __GNUC__
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
     set to 'Yes') calls __io_putchar() */
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
  


/**
  * @brief  Retargets the C library printf function to the USART.
  * @param  None
  * @retval None
  */
PUTCHAR_PROTOTYPE
{
  /* Place your implementation of fputc here */
  /* e.g. write a character to the USART */
  USART_SendData(EVAL_COM1, (uint8_t) ch);

  /* Loop until the end of transmission */
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
  {}

  return ch;
}

#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

视频转码中

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菜鸟

2014-11-27 22:19:25 打赏

19楼

视频地址：http://player.youku.com/player.php/sid/XODM2NjEwMzQw/v.swf

/**
  ******************************************************************************
  * @file    EXTI/EXTI_Config/main.c 
  * @author  MCD Application Team
  * @version V3.5.0
  * @date    08-April-2011
  * @brief   Main program body
  ******************************************************************************
  * @attention
  *
  * 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.
  *
  *

	© COPYRIGHT 2011 STMicroelectronics

******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"
#include 
/** @addtogroup STM32F10x_StdPeriph_Examples
  * @{
  */

/** @addtogroup EXTI_Config
  * @{
  */ 

/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
EXTI_InitTypeDef   EXTI_InitStructure;
GPIO_InitTypeDef   GPIO_InitStructure;
NVIC_InitTypeDef   NVIC_InitStructure;
USART_InitTypeDef USART_InitStructure;
USART_ClockInitTypeDef USART_ClockInitStructure;
TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure;
TIM_OCInitTypeDef  TIM_OCInitStructure;
long flag1=0,flag2=0;
void RCC_Configuration(void)
{
	SystemInit();
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOD, &GPIO_InitStructure);
	GPIO_ResetBits(GPIOD,GPIO_Pin_2);
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_AFIO, ENABLE);
  GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable,ENABLE);//disable JTAG
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
	GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
}

void USART_int(long BaudRate)
{
	  RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; 
    GPIO_Init(GPIOA, &GPIO_InitStructure);
    /* PA10 USART1_Rx  */
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA, &GPIO_InitStructure);
  /* USARTx configured as follow:
        - BaudRate = 115200 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = BaudRate;//??????
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;//???????8bit
  USART_InitStructure.USART_StopBits = USART_StopBits_1;//????1
  USART_InitStructure.USART_Parity = USART_Parity_No;//????
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//??????none
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//??????????
	USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;     
  USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;      
  USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;      
  USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
  USART_ClockInit(USART1, &USART_ClockInitStructure);
  USART_Init(USART1, &USART_InitStructure);
  USART_Cmd(USART1, ENABLE);
	USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
  USART_Cmd(USART1, ENABLE);
}

void NVIC_Configuration(void)   
{   
  /* Enable the TIM2 global Interrupt */  
  NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;   
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;//??????   
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;//??????   
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;   
    NVIC_Init(&NVIC_InitStructure);   
    /* Enable the TIM3 global Interrupt */  
     NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;   
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;   
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;   
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;   
  NVIC_Init(&NVIC_InitStructure);   
}   
  /* Time base configuration */  
void TIM2_Configuration(void)//2s   
{   
  TIM_TimeBaseStructure.TIM_Period = 3999;//4s   
  TIM_TimeBaseStructure.TIM_Prescaler = 23999;//1ms   
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;   
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;   
  TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure); 
  TIM_ITConfig(TIM2, TIM_IT_Update, ENABLE);   
  TIM_Cmd(TIM2, ENABLE);//  
}   
void TIM3_Configuration(void)//1s   
{   
  TIM_TimeBaseStructure.TIM_Period = 1999;//2s   
  TIM_TimeBaseStructure.TIM_Prescaler = 23999;//1ms   
  TIM_TimeBaseStructure.TIM_ClockDivision = 0;   
  TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;   
  TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure);
  TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);   
  TIM_Cmd(TIM3, ENABLE);//	
}   
  
int main(void)   
{   
  /* System Clocks Configuration */  
  RCC_Configuration();   
  NVIC_Configuration();   
  USART_int(115200);   
  TIM2_Configuration();   
  TIM3_Configuration();   
  GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);   
       
  printf(" Config done...\r\n");   
  while (1)   
 {   
    if(flag1 == 0)   
    {   
        printf("TIM2中断\r\n");   
    GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3);   
   }   
    if(flag2 == 0)   
    {   
       printf("TIM3中断\r\n");   
       GPIO_SetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);   
   }   
 }   
}   
  
void TIM2_IRQHandler(void) //TIM2 ??   
{   
    if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET)    
    {   
        TIM_ClearITPendingBit(TIM2, TIM_IT_Update );    
        GPIO_ResetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2|GPIO_Pin_3);   
    }   
}   
  
void TIM3_IRQHandler(void) //TIM3 ??   
{   
    if (TIM_GetITStatus(TIM3, TIM_IT_Update) != RESET)    
    {   
        TIM_ClearITPendingBit(TIM3, TIM_IT_Update );    
        GPIO_ResetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7);   
    }   
}   


#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/**
  * @}
  */ 

/**
  * @}
  */ 

#ifdef __GNUC__
  /* With GCC/RAISONANCE, small printf (option LD Linker->Libraries->Small printf
     set to 'Yes') calls __io_putchar() */
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif /* __GNUC__ */
  


/**
  * @brief  Retargets the C library printf function to the USART.
  * @param  None
  * @retval None
  */
PUTCHAR_PROTOTYPE
{
  /* Place your implementation of fputc here */
  /* e.g. write a character to the USART */
  USART_SendData(EVAL_COM1, (uint8_t) ch);

  /* Loop until the end of transmission */
  while (USART_GetFlagStatus(EVAL_COM1, USART_FLAG_TC) == RESET)
  {}

  return ch;
}

#ifdef  USE_FULL_ASSERT

/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t* file, uint32_t line)
{ 
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* Infinite loop */
  while (1)
  {
  }
}

#endif

/******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/

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菜鸟

2014-11-27 23:57:46 打赏

20楼

视频已经上传好了

复杂还是不懂怎么用外部中断控制定时器中断

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打赏帖
【我踩过的那些坑】STM32的硬件通讯调试过程的“坑”被打赏50分
【我踩过的那些坑】晶振使用的问题被打赏100分
【我踩过的那些坑】电感选型错误导致的处理器连接不上被打赏50分
【我踩过的那些坑】工作那些年踩过的记忆深刻的坑被打赏10分
【我踩过的那些坑】DRC使用位置错误导致的问题被打赏100分
我踩过的那些坑之混合OTL功放与落地音箱被打赏50分
汽车电子中巡航控制系统的使用被打赏10分
【我踩过的那些坑】工作那些年踩过的记忆深刻的坑被打赏100分
分享汽车电子中巡航控制系统知识被打赏10分
分享安全气囊系统的检修注意事项被打赏10分

热门分类
STM32	MCU
通讯及无线技术	物联网技术
电子DIY	板卡试用
基础知识	软件与操作系统
我爱生活	小e食堂

- 嵌入式开发: STM32

MCU

FPGA

软件与操作系统

RISC-V

国产MCU

- 综合技术: 电源与模拟

通讯及无线技术

工业控制与自动化

物联网技术

PCB与EMC

测试测量

智能新技术

基础知识

- DIY与开源设计: 电子DIY

开源硬件

设计工具

- 行业应用: 汽车电子

机器人开发

- 活动中心: 板卡试用

研讨会

下载专区

合作大赛

视频专区

有奖活动

- 高校专区: 毕业设计专区

竞赛辅导

坤创E-Geek/天科大新电社

漓东e学堂

周师电子设计创新社区

岭南EE码农港

湖北理工TEA

东师科技爱好者

- 休闲专区: 话题讨论

我爱工作

我爱生活

- 企业专区: OpenVINO生态社区

英飞凌

ADI

Xilinx

TI

Mouser

Microchip

贝能国际

Atmel

GD32

Linear

Renesas

Cypress

机智云Gizwits

Micron

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