单片机独立按键控制显示

通过外部按钮 控制数码管数字显示

#include "StuNum.h"

void main(void)
{
	SysInit();
	while(1)
	{
		DisplayNum(StN);
		KeyScan();
	}
}

void SysInit(void)
{
	SegDa = AllL;
	SegBH = AllH;
	SegBL = AllH;
}

void DisplayNum(unsigned char *p)
{
	unsigned char i;
	for(i=0; i<10; i++)
	{
		if(i<2)
		{
			SegBH &= 0xfc;
			SegBH |= (SegBCod[i+6]&0x03);
			SegBL = AllH;
		}
		else 
		{
			SegBH |= 0x03;
			SegBL = SegBCod[i-2];
		}
		SegDa = SegDCod[*p++];
		Delay(10);
		SegBH |= 0x03;
		SegBL = AllH;
		SegDa = AllL;
		Delay(10);
	}
}

void Delay(unsigned char t)
{
	unsigned char i,j;
	for(i=0; i<20; i++)
	{
		for(j=0; j
			;
		}
	}
}



void KeyScan(void)
{
	if(KeyFlag==0)
	{
		if(Key1==0)
		{
			RightShift();
			KeyFlag = 1;
		}
		else
		{
			;
		}
	}
	else if(KeyFlag==1)
	{
		if(Key1==1)
		{
			KeyFlag = 0;
		}
	}
}

void RightShift(void)
{
	unsigned char i,j;
	j = StN[9];
	for(i=9; i>0; i--)
	{
		StN[i] = StN[i-1];
	}
	StN[0] = j;
}