keyboard.c

来自「BOOT实验SDT」· C语言 代码 · 共 67 行

#include "..\inc\44b.h"
#include "..\inc\def.h"
#include "Zlg7289.h"
#include "Keyboard.h"

U16 FunctionKey=0xffff;//功能键扫描吗,0有效
U8 keyBoard_KeyMap[]={'7','4','1',0,'N',0,0,0,'8','5','2','0','/',0,0,0,'9','6','3','D','*','-',0,0,'+',0,'E'};

U32 GetKey()
{
	while((rPDATG&ZLG7289_KEY));

	return Zlg7289_ReadKey();
}

void SetFunctionKey(U16 Fnkey)	//设定功能键扫描码,1有效 比如ctrl alt
{
	FunctionKey&=~Fnkey;
}

int IsKeyDown()
{
	return (!(rPDATG&ZLG7289_KEY));
}

void GetKey_poll()
{
	static int lastkey=0;
	static int count=0;
	unsigned int key;

	if(rPDATG&ZLG7289_KEY){
		lastkey=0;
		return;
	}

	if(lastkey==1)
		return;

	if((key=Zlg7289_ReadKey())==0xff){
		lastkey=0;
		return;
	}

	lastkey=1;
	Uart_Printf("%c,  ",keyBoard_KeyMap[key]);
	count++;

	if(count==12){
		count=0;
		Uart_Printf("\n");
	}
}


void Key_Test()
{
	int index;

	Uart_Printf("\nPress the keyboard.\n");

	index=Set_UartLoopFunc(GetKey_poll);
	Uart_Getch(0);
	Clear_UartLoopFunc(index);
}