基于STM32的_矩阵键盘运用

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1、//==========================keyboard.h===========================//#ifndef__KEYBOARD_H#define__KEYBOARD_H#include"stm32f10x_lib.h"//键盘选择扫描模式。#defineInterrupt_Scan  //中断扫描模式,要在NVIC在中打开对应中断。/*可以定义其它扫描方式*/#defineDELAY_COUNT   0x0FFFF/*键盘控制引脚定义*/#defineK

2、eyboard_Control_Port  GPIOD#defineKeyboard_Line_1   GPIO_Pin_0#defineKeyboard_Line_2   GPIO_Pin_1#defineKeyboard_Line_3   GPIO_Pin_2#defineKeyboard_Line_4   GPIO_Pin_3#defineKeyboard_Line_5   GPIO_Pin_4#defineKeyboard_Row_1   GPIO_Pin_5#defineKeyboar

3、d_Row_2   GPIO_Pin_6#defineKeyboard_Row_3   GPIO_Pin_7#defineKeyboard_Row_4   GPIO_Pin_8#defineKeyboard_LineBaseKeyboard_Line_1#defineKeyboard_RowBase Keyboard_Row_1#defineKeyboard_Line  (Keyboard_Line_1

4、Keyboard_Line_2

5、Keyboard_Line_3

6、Keyboard_Line_

7、4

8、Keyboard_Line_5)#defineKeyboard_Row  (Keyboard_Row_1

9、Keyboard_Row_2

10、Keyboard_Row_3

11、Keyboard_Row_4)#ifdefInterrupt_Scan  /*中断扫描模式宏定义*/#defineKeyboard_EXTI_Row1  EXTI_Line5#defineKeyboard_EXTI_Row2  EXTI_Line6#defineKeyboard_EXTI_Row3  EXTI_Line7#def

12、ineKeyboard_EXTI_Row4  EXTI_Line8#defineKeyboard_EXTI_PortSource GPIO_PortSourceGPIOD#defineKeyboard_EXTI_PinSource1GPIO_PinSource5#defineKeyboard_EXTI_PinSource2GPIO_PinSource6#defineKeyboard_EXTI_PinSource3GPIO_PinSource7#defineKeyboard_EXTI_PinSou

13、rce4GPIO_PinSource8#defineKeyboard_IRQ_Channel EXTI9_5_IRQChannel#defineKeyboard_EXTI_Line   (Keyboard_EXTI_Row1

14、Keyboard_EXTI_Row2

15、Keyboard_EXTI_Row3

16、Keyboard_EXTI_Row4)#endif /*中断扫描模式宏定义*//*键盘全局变量声明*/externunsignedintKeyboard_Val;   //当前键值externuns

17、ignedcharKeyboard_Change_Flag; //键值改变标志，读取新的键值后由主程序清零/*键盘接口函数声明*/#ifdefInterrupt_ScanexternvoidInit_Keyboard_Interrupt(void);//键盘初始化为键盘扫描模式#endifexternvoidDelay(vu32nCount); //用于延时消抖#endif/*KEYBOARD_H*///==============================================

18、==============////=========================Keyboard.c=============================//#include"stm32f10x_lib.h"#include"Keyboard.h"?????????????unsignedintKeyboard_Val=0;  //保存键值unsignedcharKeyboard_Change_Flag=0;//键值改变标志，读取键值后清零/**********************