key.c

来自「ARM7下用图形用户界面实现LED,KEY,MOTOR,AD功能」· C语言 代码 · 共 77 行

#include "stdio.h"
#include "hardware.h"
#include "sdio.h"
#include "zlg7289.h"
#include "message.h"
unsigned char keymap[]={7,4,1,0,0,0,0,0,8,5,
			2,0,11,0,0,0,9,6,3,16,
			12,13,0,0,14,0,15,0,0,0,
			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
			};
void Delay(int t)
{
        int i;
        for(;t>0;t--)
                for(i=0;i<400;i++);
}

char getkey()
{
	char key;
	INTMSK|=(0X1<<26);
	ZLG7289_ENABLE();
	sendsiodata(ZLG7289_CMD_RDKEY);
	key=readsiodata();
	ZLG7289_DISABLE();
	INTMSK&=(~0X1<<26);
	key=keymap[key];
	return key;

}




int led_showdata(unsigned int a)
{
	int i=0;
	INTMSK|=(0X1<<26);
	ZLG7289_ENABLE();
        sendsiodata(ZLG7289_CMD_RST);
	Delay(20);

	a%=100000000;
        for(i=0;i<8 && a !=0 ;i++)
        {
                sendsiodata(ZLG7289_CMD_DATA1|i); //
                sendsiodata(a%10);
                a/=10;
		Delay(10);
        }
        for(;i<8;i++)
        {
                sendsiodata(ZLG7289_CMD_DATA0|i);
                sendsiodata(0xf);     
		Delay(10);
        }

        ZLG7289_DISABLE();
        INTMSK&=(~0X1<<26);
        return 0;
}

int led_cmd(char cmd)
{
        INTMSK|=(0X1<<26);
        ZLG7289_ENABLE();
	sendsiodata(cmd);
        ZLG7289_DISABLE();
        INTMSK&=(~0X1<<26);

        return 0;
}