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[操作系统]STM32 按键输入

  

#include "stm32f10x.h"
#include "key.h"

//按键初始化函数
void KEY_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12|GPIO_Pin_13|GPIO_Pin_14|GPIO_Pin_15|GPIO_Pin_4|GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7|GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

 


#ifndef __KEY_H#define __KEY_H   #define KEY0 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_12)//读取按键0#define KEY1 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_13)//读取按键1#define KEY2 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_14)//读取按键2 #define KEY3 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_15)//读取按键3#define KEY4 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_4)//读取按键0#define KEY5 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_5)//读取按键1#define KEY6 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_6)//读取按键2 #define KEY7 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_7)//读取按键3#define KEY8 GPIO_ReadInputDataBit(GPIOB,GPIO_Pin_8)//读取按键3void KEY_Init(void);//IO初始化          #endif

#include "stm32f10x.h"#include <stdio.h>#include "sys.h"#include "delay.h"#include "oled.h"#include "24l01.h"#include "key.h" /* OLEDSCL-D0--PC15SDA-D1--PC14  RST---PC13  DC---PB4*//*    2401--SPI1     MISO-PA6 SCK-PA5   CE-PB3    IRQ-PA3 MOSI-PA7 CSN-PA2*/ // c8t6 u8 tmp_buf[1] ;int main(void){  Stm32_Clock_Init(9);//系统时钟设置为外部晶振,9倍频  delay_init(72);//系统SysTick初始化  JTAG_Set(JTAG_SWD_DISABLE);   //=====关闭JTAG接口  JTAG_Set(SWD_ENABLE);      //=====打开SWD接口 可以利用主板的SWD接口调试 OLED_Init();  KEY_Init();  //NRF24L01_Init();        //=====NRF24L01无线模块初始化 // NRF24L01_FindMyself();     //=====NRF24L01无线模块检查 检测不到就停在这边自检闪灯   //tmp_buf[0]= 1 ;  while (1)  {          // TX_Mode();                           //   OLED_ShowNumber(0,30,tmp_buf[0],5,12);        //  NRF24L01_TxPacket(tmp_buf);                   if(KEY0 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key0");           }     if(KEY1 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key1");     }     if(KEY2 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key2");     }     if(KEY3 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key3");     }            if(KEY4 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key4");     }                 if(KEY5 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key5");     }           if(KEY6 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key6");     }            if(KEY7 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key7");     }            if(KEY8 == 0)     {       delay_ms(10);       OLED_ShowString(0,20,"Key8");     }                 OLED_Refresh_Gram(); }          }