keyboard.c

来自「实现了在S3C44B0开发版上的LED8位数码管的交通灯模拟。」· C语言 代码 · 共 30 行

#include "44b.h"
#include "def.h"
#include "Zlg7289.h"
unsigned char KeyBoard_Map[]={7,4,1,0,0,0,0,0,8,5,
								2,00,1,0,0,0,9,6,3,16,
								15,10,0,0,11,0,12,0,0,0,
								0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,
								0,0,0,0,0,0,0,0,0,0,
								0,0,0,0
								}; //64,键值映射表
U32 GetKey()
{
	U16 key;
	while(1)
	{
		while((rPDATG&ZLG7289_KEY));//有键按下
		key=Zlg7289_ReadKey();//得到按键扫描码
		Uart_Printf("\n%d",key);
		if(key<=64)
		{//按键值有效
			key=KeyBoard_Map[key];//通过键盘映射表得到按键值
			break;
		}
		Delay(1000);
	}
	return key;
}