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嵌入式你好08

菜鸟

2014-10-22 14:16:34 打赏

11楼

GPIO_SetBits用得太多了，所以试一下GPIO_WriteBit，效果是一样的~

评论

嵌入式你好08

菜鸟

2014-10-30 22:33:05 打赏

12楼

/**
  ******************************************************************************
  * @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.
  *
  * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  ******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32_eval.h"

u8 flag=0;//u8=unsigned char
void delayms(u16 time)//延时函数 延时1ms
{
	u16 i=0;
	while(time--)
	{
		i=12000;
		while(i--);

	}
}

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);
  
}


void delay_us(u32 n)
{
	u8 j;
	while(n--)
	for(j=0;j<10;j++);
}

void  delay_ms(u32 n)
{
	while(n--)
	delay_us(1000);
}

void  display(u8 n)//显示数码管函数
{
     u8 j0,j1;
	 j0=n/10;
	 j1=n%10;
     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(j1)
	 {
		 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;

	 }

  	    delay_ms(5);
		GPIO_ResetBits(GPIOB,GPIO_Pin_1);
		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);
	    
		GPIO_ResetBits(GPIOB,GPIO_Pin_15);
	    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(j0)
	 {
		 case 0 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_15);
			 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_15);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12);
		     break;
			case 2 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_15);
			 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_15);
			 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_15);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_8|GPIO_Pin_5);
			break;
			case 5 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_15);
			 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_15);
			 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_15);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_7|GPIO_Pin_9|GPIO_Pin_12);
			break;
			case 8 : 
			 GPIO_SetBits(GPIOB,GPIO_Pin_15);
			 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_15);
			 GPIO_ResetBits(GPIOB,GPIO_Pin_5|GPIO_Pin_7|GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_12|GPIO_Pin_14);
			break;

	 }
		delay_ms(5);
		GPIO_ResetBits(GPIOB,GPIO_Pin_15);
		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);

}

int main(void)
{


    char i=0;
	RCC_Configuration();
	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init(GPIOD, &GPIO_InitStructure);

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8|GPIO_Pin_9|GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
	GPIO_Init(GPIOC, &GPIO_InitStructure);

    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);

	GPIO_SetBits(GPIOD,GPIO_Pin_2);
	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_8))  //s1
      {
	     delay_ms(50);
         if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_8))
		 { 
		   if(flag==0){i++;}
		   if(i>30){i=0;}
		   delay_ms(100);
		   display(i);
		 }
	  }

		if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_9))  //s2
      {
	     delay_ms(30);
         if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_9))
		  {
		   if(flag==1){i++;}
		   	 if(i>30){i=0;}
		     display(i);
		  }
	   }
	   
		if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_10))  //s3
      {
	     delay_ms(50);
         if(!GPIO_ReadInputDataBit(GPIOC,GPIO_Pin_10)){flag=!flag;}

	  }

	  display(i);

  }
}

视频地址：http://player.youku.com/player.php/sid/XODE1MTEyNDMy/v.swf

评论

高工

2014-10-30 23:03:56 打赏

13楼

鼓励多尝试外设库的函数

坏不了的

P.S.楼主的头像很彪悍啊是越狱里的那个gay吗？

评论

买西瓜送熙熙

菜鸟

2014-10-31 08:52:26 打赏

14楼

楼主就是个腐女

评论

嵌入式你好08

菜鸟

2014-11-09 17:51:04 打赏

15楼

借鉴+理解+修改

#include "stm32f10x.h"  
#include "stm32_eval.h"  
#include    "stdio.h"  
#define buff_size  16;   
  
GPIO_InitTypeDef GPIO_InitStructure;  
USART_InitTypeDef USART_InitStructure;  
NVIC_InitTypeDef NVIC_InitStructure;	
USART_ClockInitTypeDef  USART_ClockInitStructure;  
char rx_buff[],rx_buff_count=0;  
  
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()  
{  
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);  
     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; //LED D1-D8
     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);  
}  
void delay_us(u32 n)  
{  
    u8 j;  
    while(n--)  
    for(j=0;j<10;j++);  
}  
void  delay_ms(u32 n)  
{  
    while(n--)  
    delay_us(1000);  
}  
  
  
  
  void USART_int(long BaudRate)  
{  
     RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_USART1,ENABLE);//使能PA USART1  
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;//TX位于PA9   
   GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;  
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推挽输出  
   GPIO_Init(GPIOA, &GPIO_InitStructure);//TX初始化 PA9   
   GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//RX位于PA10   
   GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;//悬空输入  
   GPIO_Init(GPIOA, &GPIO_InitStructure);//RX初始化 PA10   
  /* 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;//传输速率  
    USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长8比特  
    USART_InitStructure.USART_StopBits = USART_StopBits_1;//停止位1   
    USART_InitStructure.USART_Parity = USART_Parity_No;//  
    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//流控位none  
    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;//接收和发送模式  
    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);//初始化USART1时钟  
    USART_Init(USART1, &USART_InitStructure);//初始化USART1   
    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);//优先级  
  /* Enable the USART1 Interrupt */  
    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn; //选择USART1中断通道  
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 15;  
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;  
    NVIC_Init(&NVIC_InitStructure);//初始化中断  
}  
  
void USART_SendStr(char *str)  
{  
   while((*str)!='\0')  
{USART_SendData(USART1,*str++);  
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);  
}  
}  
  
char strcmp(char *S,char *C,char LEN)//比较字符  
{ char count;  
  for(count=0;count>=1;  //变量i右移一位 
                   GPIO_ResetBits(GPIOC,i);             
                   delay_ms(50);    
                   GPIO_SetBits(GPIOC,i);  
                  }   
		i=0x0008;//D5
         for(j=1;j<=4;j++)   
                 {    
                   i<<=1;  //变量i左移一位 
                   GPIO_ResetBits(GPIOC,i);             
                   delay_ms(50);    
                   GPIO_SetBits(GPIOC,i);  
                  } 									
                  }  
                  break;   
                  }  
                 }  
                                            
     case 8:  
             {  
              flag = strcmp(S,"time=100",8);  
              if(flag==1)  
             {  
              for(i=0;i<=18;i++)  
              {

 i=0x0010; //D1

           for(j=1;j<=4;j++)   
              {
	    i>>=1;   //右移一位
            GPIO_ResetBits(GPIOC,i);             
            delay_ms(100);    
            GPIO_SetBits(GPIOC,i);  
               }  
	 i=0x0008; //D8 
           for(j=1;j<=4;j++)   
              {
	i<<=1;   //左移一位
            GPIO_ResetBits(GPIOC,i);             
            delay_ms(100);    
            GPIO_SetBits(GPIOC,i);  
               } 							 
                    }  
                 break;  
                 }   
                 }  
     case 9:        
             {  
            flag = strcmp(S,"time=1000",9);  
            if(flag==1)  
             {  
              for(i=0;i<=18;i++)  
             {  
              GPIO_SetBits(GPIOC,0x000000ff);
                 i=0x0010; 
              for(j=1;j<=4;j++)   
              {    
                      i>>=1; //右移1位  
                     GPIO_ResetBits(GPIOC,i);             
                      delay_ms(1000);    
                     GPIO_SetBits(GPIOC,i); 
							}								
		i=0x0008;
		 for(j=1;j<=4;j++)   
              {    
		i<<=1; //左移动1位  
                     GPIO_ResetBits(GPIOC,i);             
                      delay_ms(1000);    
                     GPIO_SetBits(GPIOC,i); 
                               }    
                                               
                          }  
                                                                      
                      break;  
											
                 }  
               }       
                 }  
             }  
 }  
 
          
void input_ASK()  
{     
    char j;  
    commcmp(rx_buff,rx_buff_count);  
     rx_buff_count=0;  
      for (j=0;j");  
}  
  
int main(void)  
{   
          
    RCC_Configuration();  
    GPIO_INIT();  
    USART_int(9600); 
    GPIO_ResetBits(GPIOC,0x000000ff); //LED
    delay_ms(500);  
    GPIO_SetBits(GPIOC,0x000000ff); 	
    USART_SendStr("SyStem booting......\r\n");  
 while(1){}         
}  
  
  
  
void USART1_IRQHandler(void)   
{   
  
  while(USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET)  
  {   
  }   
if(USART_ReceiveData(USART1)==0x0d)  
{input_ASK();}  
else  
{  
USART_SendData(USART1,USART_ReceiveData(USART1));  
rx_buff[rx_buff_count]= USART_ReceiveData(USART1);  
    rx_buff_count++;  
}  
  USART_ClearFlag(USART1, USART_FLAG_RXNE);  
  
}

视频地址：http://player.youku.com/player.php/sid/XODIzMDg4MDg0/v.swf

评论

高工

2014-11-12 11:24:30 打赏

16楼

借鉴+理解+修改

不错

不过还是只能几种固定的速度啊

评论

嵌入式你好08

菜鸟

2014-11-24 12:47:09 打赏

17楼

在老师的基础上复制粘贴而已，S3、S4我用的是上升沿触发，感觉没什么变化。我也尝试用其他中断口，没调出来，革命尚未成功，同志仍需努力~


/**
*********************************************************
*********************
  * @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;//初始化
/* 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);//点亮LED
}
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;
  USART_InitStructure.USART_StopBits = USART_StopBits_1;
  USART_InitStructure.USART_Parity = USART_Parity_No;
  USART_InitStructure.USART_HardwareFlowControl = 
USART_HardwareFlowControl_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);
}
/* Private functions 
---------------------------------------------------------
*/
/**
  * @brief  Main program.
  * @param  None
  * @retval None
  */
int main(void)
{RCC_Configuration();
  /* Configure PA.00 in interrupt mode */
  EXTIkeyS1_Config();
  /* Configure PB.09 or PG.08 in interrupt mode */
  EXTIkeyS2_Config();
  EXTIkeyS3_Config();
  EXTIkeyS4_Config();
  USART_int(115200);
	printf("Config done,waiting for interrupt......
\r\n");
  while (1)
  {
  }
}
/**
  * @brief  Configure PA.00 in interrupt mode
  * @param  None
  * @retval None
  */
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;//S1
  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
  GPIO_Init(GPIOC, &GPIO_InitStructure);
  /* Enable AFIO clock */
  RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
  /* Connect EXTI0 Line to PA.00 pin */
  GPIO_EXTILineConfig(GPIO_PortSourceGPIOC, 
GPIO_PinSource8);//配置外部中断
  /* Configure EXTI0 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line8;//S1
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;//中断模式
  EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling; //下降沿触发 
  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;//使能按键所在的外部中断通道
  NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 
0x0F;//抢占优先级
  NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x0F;//
子优先级
  NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//使能外部中断通道
  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;//S2
  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);//配置外部中断
  /* Configure EXTI9 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line9;//S2
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = 
EXTI_Trigger_Falling;//下降沿触发
  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.09 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//S3
  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_PinSource10);
  /* Configure EXTI9 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line10;//S3
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = 
EXTI_Trigger_Rising;//上升沿触发
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);
  /* Enable and set EXTI9_5 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.09 pin as input floating */
  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;//S4
  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_PinSource11);
  /* Configure EXTI9 line */
  EXTI_InitStructure.EXTI_Line = EXTI_Line11;//S4
  EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;
  EXTI_InitStructure.EXTI_Trigger = 
EXTI_Trigger_Rising;//上升沿触发
  EXTI_InitStructure.EXTI_LineCmd = ENABLE;
  EXTI_Init(&EXTI_InitStructure);
  /* Enable and set EXTI9_5 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);
}
/********************************************************
**********************/
/*            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)//判断某个线上的中断是否发生    S2
  {
    /* Toggle LED2 */
     GPIO_SetBits(GPIOC,GPIO_Pin_4|GPIO_Pin_5);//熄灭D5-6
   printf("S2 interrupt ......\r\n");
    /* Clear the  EXTI line 9 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line9);//清除LINE9上的中断标志位
  }
	if(EXTI_GetITStatus(EXTI_Line8) != RESET)//                              S1
  {
    /* Toggle LED1 */
     GPIO_SetBits(GPIOC,GPIO_Pin_0|GPIO_Pin_1);//熄灭D1-2
   printf("S1 interrupt ......\r\n");
    /* Clear the  EXTI line 0 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line8);
  }
}
void EXTI15_10_IRQHandler(void)
{
  if(EXTI_GetITStatus(EXTI_Line11) != RESET)//                              S4
  {
    /* Toggle LED4 */
     GPIO_SetBits(GPIOC,GPIO_Pin_2|GPIO_Pin_3);//熄灭D3-4
    printf("S4 interrupt ......\r\n");
    /* Clear the  EXTI line 0 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line11);
  }
	if(EXTI_GetITStatus(EXTI_Line10) != RESET)//                             S3
  {
    /* Toggle LED3 */
     GPIO_SetBits(GPIOC,GPIO_Pin_6|GPIO_Pin_7);//熄灭D7-8
     printf("S3 interrupt ......\r\n");
    /* Clear the  EXTI line 0 pending bit */
    EXTI_ClearITPendingBit(EXTI_Line10);
  }
}
#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****/

视频地址：http://player.youku.com/player.php/sid/XODMzNDE3NjMy/v.swf

评论

菜鸟

2014-11-24 17:40:04 打赏

18楼

中断线一定要和PC脚对上，没记错的话，不能随便设置中断线

评论

高工

2014-11-25 21:37:13 打赏

19楼

你确定代码能用？再仔细看看

缺的一个按键，能焊上不，用镊子来短路。。。。。

评论

嵌入式你好08

菜鸟

2014-11-27 22:34:34 打赏

20楼

真的可以呀~不知道是不是复制上来会自动少一些，哭晕在厕所~

评论

共36条 2/4 ‹ 1 2 3 4 › 跳转至页

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