counter.c

主要实现FPGA和总线模式下的通信可以实现8051对FPGA的读写操作

#include<reg51.h>
#include<absacc.h>
#define FPGA XBYTE[0xb000]
#define uchar unsigned char 
#define uint unsigned int
uchar code dispbitcode[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};	 //片选
uchar code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00};	//数码管显示
uchar led[3];
uchar Data;
void Delay()
{
	uchar i,j,k;
	for(i=0;i<24;i++)
	for(j=0;j<128;j++)
	for(k=0;k<200;k++);
}
void main(void)
{	
//	uchar i;
 	while(1)
 	{
	//	i=0;
 	 	FPGA=Data;
		Delay();
		Data++;
	/*	led[2]=Data/100;
		Data=Data%100;
		led[1]=Data/10;
		Data=Data%10;
		led[0]=Data;
		while(i<3)
		{
			XBYTE[0x8000+dispbitcode[i+1]]=dispcode[led[i+1]];
			i++;
		}
	  */
 	}
}