dis7219.c

很有用的CYGNAL C语言程序,

#include "c8051f020.h"
//#include <reg52.h>
#include <intrins.h>
//#include "bjqmain.h"
/* Display define     */

#define Delay5() {	_nop_();\
					_nop_();\
					_nop_();\
					_nop_();\
					_nop_(); }

#define Delay3() {	_nop_();\
					_nop_();\
					_nop_(); }

#define DCodeSet 0x0f
#define DISet    0xff
#define ScanNum  0x07
#define ShutDown 0x01			 
#define DisplayT 0x00
/*
MAX7219 display code
0x0a -
0x0b E
0x0c H
0x0d L
0x0e P
*/
#define DCodeA      0x09
#define DISetA      0x0a
#define ScanNumA    0x0b
#define ShutDA      0x0c
#define DisTestA    0x0f



sbit DisCs 	 = P3^5;
sbit DisIn   = P1^2;
sbit DisClk  = P1^1;
extern bit TimeF5s;
/* Display define end */
extern uchar ;code CharTable[38];
void Dis8(uchar sbz,uchar data *DisBuf)
{
uchar i;
if (TimeF5s) {  sbz=sbz|0xff;}
for(i=8;i>0;i--){
if (sbz>=0x80) {Display(*DisBuf,i);} else{Display(0x00,i);}
                sbz<<=1;
                DisBuf--;
                }
}

void	Display(uchar DisData,uchar  DisComm)
{
uchar i;
DisClk=0;
Delay5();
DisCs=0;
for (i=8;i!=0;i--)
	{
	Delay5();
	DisClk=0;
	Delay3();
	DisComm<<=1;
	DisIn=CY;
	Delay3();
	DisClk=1;	
	}
for (i=8;i!=0;i--)
	{
	Delay5();
	DisClk=0;
	Delay3();
	DisData<<=1;
	DisIn=CY;
	Delay3();
	DisClk=1;	
	}
DisCs=1;
}