stm32f103rb harici kesme

handybest06 · 20 Aralık 2013, 17:50:33

Merhaba stm32f103rb harici kesmeyi öğrenmeye çalışıyorum.Çalışan kodda harici kesme RA0 ile yapılmış.Ben bunu RA1 ile yapmayı denedim ama işin içinden çıkamadım.

/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "stm32f10x_gpio.h"
#include "stm32f10x_rcc.h"
#include "stm32f10x_usart.h"
#include "stm32f10x_exti.h"
#include "misc.h"
#include "hardware.h"
#include "usart.h"
#include <stdio.h>
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
const char menu[] =
   "\n\r"
   "*********************** MINI-STM32***********************\n\r"
   "*-------------------------------------------------------*\n\r";
/* Private function prototypes -----------------------------------------------*/
void GPIO_Configuration(void);
void NVIC_Configuration(void);
uint8_t KEY_Scan(void);
void Delay(uint16_t time);
/* Private functions ---------------------------------------------------------*/
EXTI_InitTypeDef EXTI_InitStructure;

/*****************************************************************************
** º¯ÊıÃû³Æ: main
** ¹¦ÄÜÃèÊö: Ö÷º¯ÊıÈë¿Ú
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
int main(void)
{
//	uint8_t key;			//¶¨ÒåÒ»¸ö¼üÖµ
	SystemInit();	   		//ÅäÖÃÏµÍ³Ê±ÖÓ72M(°üÀ¨clock, PLL and Flash configuration)
	GPIO_Configuration();	// Òı½ÅÅäÖÃ
	NVIC_Configuration();	//ÏµÍ³ÖĞ¶ÏÅäÖÃ
	USART_Configuration();	//Òì²½Í¨ĞÅ³õÊ¼»¯
	USART_Send_Str(menu);

  	/* Connect Key Button EXTI Line to Key Button GPIO Pin */
  	GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource1);

  	/* Configure Key Button EXTI Line to generate an interrupt on falling edge */  
  	EXTI_InitStructure.EXTI_Line = EXTI_Line1;			  //Íâ²¿ÖĞ¶Ï0
  	EXTI_InitStructure.EXTI_Mode = EXTI_Mode_Interrupt;	   	  //ÖĞ¶ÏÄ£Ê½
  	EXTI_InitStructure.EXTI_Trigger = EXTI_Trigger_Falling;	  //ÏÂ½µÑØ²úÉúÖĞ¶Ï
  	EXTI_InitStructure.EXTI_LineCmd = ENABLE;				  //Ê¹ÄÜÖĞ¶ÏÏß0ÉÏÖĞ¶Ï
  	EXTI_Init(&EXTI_InitStructure);  
  	while (1)
  	{	
		LED2 =!LED2;
		Delay(5000);
  	}
}
/*****************************************************************************
** º¯ÊıÃû³Æ: GPIO_Configuration
** ¹¦ÄÜÃèÊö: ÅäÖÃIO¿Ú
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
void GPIO_Configuration(void)
{
	GPIO_InitTypeDef GPIO_InitStructure;

	RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1
							, ENABLE);	// Ê¹ÄÜ¶Ë¿ÚÊ±ÖÓ£¬ÖØÒª£¡£¡£¡ 
	
	/* ÅäÖÃ LED1¡¢LED2Òı½ÅµÄ¹¦ÄÜ *********************/	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3;
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;		//Í¨ÓÃÍÆÍìÊä³öÄ£Ê½
  	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		//Êä³ö×î´óÆµÂÊÎª50MHz
  	GPIO_Init(GPIOA, &GPIO_InitStructure);					//³õÊ¼»¯PA2¡¢PA3

	/* ÅäÖÃ KEY1¡¢KEY2Òı½ÅµÄ¹¦ÄÜ *********************/	
	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;			//ÉÏÀÊäÈëÄ£Ê½
  	GPIO_Init(GPIOA, &GPIO_InitStructure);					//³õÊ¼»¯PA0¡¢PA1


   	/* ÅäÖÃ USART1 Tx (PA9) */
  	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;	 		//¸´ÓÃ¿ªÂ©Êä³öÄ£Ê½
  	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;		//Êä³ö×î´óÆµÂÊÎª50MHz
  	GPIO_Init(GPIOA, &GPIO_InitStructure);
    
  	/* ÅäÖÃ USART1 Rx (PA10)  */
  	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
  	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;	//¸¡¿ÕÊäÈëÄ£Ê½
  	GPIO_Init(GPIOA, &GPIO_InitStructure);

}
/*****************************************************************************
** º¯ÊıÃû³Æ: KEY_Scan
** ¹¦ÄÜÃèÊö: °´¼ü´¦Àíº¯Êı
				0£¬Ã»ÓĞÈÎºÎ°´¼ü°´ÏÂ	  1£¬KEY1°´ÏÂ 
				 2£¬KEY2°´ÏÂ 
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
uint8_t KEY_Scan(void)
{	 
	static uint8_t KEY_UP=1;	//°´¼ü°´ËÉ¿ª±êÖ¾	   
	if(KEY_UP&&(KEY1==0||KEY2==0))
	{
		Delay(10);				//È¥¶¶¶¯ 
		KEY_UP=0;
		if(KEY1==0)return 1;
		else if(KEY2==0)return 2;
	}else if(KEY1==1&&KEY2==1)KEY_UP=1; 	    
	return 0;					//ÎŞ°´¼ü°´ÏÂ
}
/*****************************************************************************
** º¯ÊıÃû³Æ: Delay
** ¹¦ÄÜÃèÊö: ÑÓÊ±Ò»¶ÎÊ±¼ä
				time <65536;
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
void Delay(uint16_t time)
{
	uint16_t i,j;
	for(i=time;i>0;i--)
	{
		for(j=500;j>0;j--);
	}
}
/*****************************************************************************
** º¯ÊıÃû³Æ: NVIC_Configuration
** ¹¦ÄÜÃèÊö: ÏµÍ³ÖĞ¶Ï¹ÜÀí
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
void NVIC_Configuration(void)
{
	   NVIC_InitTypeDef NVIC_InitStructure;
	    NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);

	    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);

	    NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;
	    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
	    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
	    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
	    NVIC_Init(&NVIC_InitStructure);
}
/*****************************************************************************
** º¯ÊıÃû³Æ: EXTI0_IRQHandler
** ¹¦ÄÜÃèÊö: Íâ²¿ÖĞ¶Ï0½øÈë¿Ú
				´¦ÀíÖĞ¶Ïº¯Êı
** ×÷  ¡¡Õß: Dream
** ÈÕ¡¡  ÆÚ: 2010Äê12ÔÂ17ÈÕ
*****************************************************************************/
void EXTI0_IRQHandler(void)
{ 
   
  	if(EXTI_GetITStatus(EXTI_Line1) != RESET)
  	{	 
		Delay(50); //ÑÓÊ±È¡Ïû¶¶

			LED1 =!LED1; //LED1·×ª

    	EXTI_ClearITPendingBit(EXTI_Line1);	 //Çå³ıLINE13ÉÏµÄÖĞ¶Ï±êÖ¾Î»
  	}
}


#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

/*******************************************************************************
** End of File
********************************************************************************/

Örnek kodda yaptığım değişiklikler
GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource0); -> GPIO_EXTILineConfig(GPIO_PortSourceGPIOA, GPIO_PinSource1);
EXTI_InitStructure.EXTI_Line = EXTI_Line0; -> EXTI_InitStructure.EXTI_Line = EXTI_Line1; yaptım.
NVIC_InitStructure.NVIC_IRQChannel = EXTI0_IRQn; -> NVIC_InitStructure.NVIC_IRQChannel = EXTI1_IRQn;

ve kesmedeki EXTI_Line0 ' ları EXTI_Line1 yaptım.Ama bi türlü çalışmıyor.

magnetron · 20 Aralık 2013, 18:06:49

RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);

AFIO clock'u enable ettin mi ? kodlarda göremedim

muhittin_kaplan · 20 Aralık 2013, 18:08:51

http://muhittinkaplan.com/2013/01/stm32f103rb-ile-exti10_15-kesmesi/

mesaj birleştirme:: 20 Aralık 2013, 18:09:23

http://muhittinkaplan.com/2012/11/external-interrupt-on-stm32vl-discovery/

handybest06 · 20 Aralık 2013, 18:56:22

@magnetron Baktığım örnekler AFIO kullanmamış.Ama bi değişiklik olmadı.

@muhittin hocam bu konuyu bakarkan ilk önce sizin örneklerle karşılaştırarak yapmaya çalıştım.Ama sizin örneğinizde de PA0 kullanılmıştı.

Sorunu çözdüm sıkıntı kesme fonksiyon adından kaynaklanıyormuş.
void EXTI0_IRQHandler(void) -> void EXTI1_IRQHandler(void)

sorunu düzeltti.

Picproje Elektronik Sitesi

Haberler:

stm32f103rb harici kesme

handybest06

magnetron

muhittin_kaplan

handybest06