关于STM8外部中断的一些问题请教请教

1万 · 2020-10-14 23:04

用的STM8S208（UM0482）的开发板学习的时候用的风驰的STM8的教程在学但是学到中断的时候发现按风驰的例子我修改对应的IO来调的时候不行像教程那样。

1万 · 2020-10-14 23:08

楼主程序可以公开吗？贴程序看下吧，这么说看不出什么原因

1万 · 2020-10-14 23:14

key_exti.h

#include "key_exti.h"
void Buttom_Init(void)
{
GPIO_Init(GPIOC,Buttom0|Buttom1|Buttom2,GPIO_MODE_IN_PU_IT);
EXTI_SetExtIntSensitivity(EXTI_PORT_GPIOC, EXTI_SENSITIVITY_FALL_ONLY);
}

key_exti.c

#ifndef  __KEY_EXTI_H
#define  __KEY_EXTI_H
#include "stm8s.h"

#define Buttom0 GPIO_PIN_0
#define Buttom1 GPIO_PIN_1
#define Buttom2 GPIO_PIN_2

void Buttom_Init(void);
#endif

led.c

#include "led.h"

void LED_Init(void)
{
GPIO_Init(GPIOH,(led1|led2|led3|led4),\
GPIO_MODE_OUT_PP_HIGH_FAST);//定义LED的管脚的模式
}

void SetLedOFF(void)
{
GPIO_Write(GPIOH, 0xff);
}

void Led_Reverse(GPIO_Pin_TypeDef LedPins)
{
GPIO_WriteReverse(GPIOH, LedPins);
}

led.h

#ifndef __LED_H
#define __LED_H
#include "stm8s_gpio.h"

#define ON  0
#define OFF 1
#define bit_set 1
#define bit_reset 0

#define led1 GPIO_PIN_0
#define led2 GPIO_PIN_1
#define led3 GPIO_PIN_2
#define led4 GPIO_PIN_3

#define LED1(ON_OFF)  if(ON_OFF==ON)GPIO_WriteLow(GPIOH,led1);\
                  else GPIO_WriteHigh(GPIOH, led1)

#define LED2(ON_OFF)  if(ON_OFF==ON)GPIO_WriteLow(GPIOH, led2);\
                  else GPIO_WriteHigh(GPIOH, led2)

#define LED3(ON_OFF)  if(ON_OFF==ON)GPIO_WriteLow(GPIOC,led3);\
                  else GPIO_WriteHigh(GPIOH, led3)

#define LED4(ON_OFF)  if(ON_OFF==ON)GPIO_WriteLow(GPIOH, led4);\
                  else GPIO_WriteHigh(GPIOH, led4)
void LED_Init(void);
void SetLedOFF(void);
void Led_Reverse(GPIO_Pin_TypeDef LedPins);

main.c

#include "stm8s.h"
#include "intrinsics.h"
#include "uart.h"
#include "led.h"
#include "key_exti.h"
void Delay(u32 nCount);

/* Private defines -----------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/

int main(void)
{

  /* Infinite loop */

  /*设置内部时钟16M为主时钟*/

  CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
/*!<Set High speed internal clock  */
Buttom_Init();
Uart_Init();
LED_Init();
__enable_interrupt();
SetLedOFF();
UART1_SendString("Key_Exti外部中断---STM8 Development Board of FengChi Electron",\
         sizeof("Key_Exti外部中断---STM8 Development Board of FengChi Electron"));
Delay(0xffff);
UART1_SendByte('\n');
Delay(0xffff);
while (1)
{

}

  }

void Delay(u32 nCount)
{
  /* Decrement nCount value */
  while (nCount != 0)
  {
nCount--;
  }
}