bak.c

来自「工控计数器ICCAVR的MAGE8程序LED数码显示+4键」· C语言 代码 · 共 34 行

void display (void)  //--------------------------------------------------------------------------数码管显示扫描
{   //pc0=ds,,pc1=shcp,,pc2=pdata,,pc3=hiport,,pc4=loport,,
    unsigned char e,n,c;
	unsigned char u,x=255;
    unsigned char sela = 0x01;
	unsigned char selb = 0x10;
	c=0;
    for(e=0;e<6;e++)
    {
        ConPort_hi = ~sela;
        OutPort = table[p[e]];
		if((PINB&0XF0) != 0xf0) goto end_dis;
        delay_nms(1);
        sela = sela<<1;
    }
	    ConPort_hi = 0xbf;
		OutPort = table[o[0]];
		if((PINB&0XF0) != 0xf0) goto end_dis;
		delay_nms(1);
		ConPort_hi = 0x7f;
		OutPort = table[o[1]];
		if((PINB&0XF0) != 0xf0) goto end_dis;
		delay_nms(1);
	    ConPort_hi = 0xff;
	for(e=2;e<7;e++)
	{
	    ConPort_lo = ~selb;
		OutPort = table[o[e]];
		if((PINB&0XF0) != 0xf0) goto end_dis;
		delay_nms(1);
        selb = selb<<1;
    }
end_dis:              ;
}