7279test.c

单片机控制按键显示芯片HD7279A

#include "7279.h"
uchar DATA_IN,sw,gw;
uint tmr;

main()
{
	P1=0xdb;
	for(tmr=0;tmr<0x2000;tmr++);
	send7279(CMD_RESET);
	write7279(SEGON,0x07);
	
	while(1)
	{
		if(!KEY)
		{
			DATA_IN=read7279(CMD_READ);
			send7279(RTL_UNCYL);//左移
			send7279(RTL_UNCYL);
			write7279(DECODE0+1,DATA_IN/10);
			write7279(DECODE0,DATA_IN%10);
			while(!KEY);
			/*send7279(0x15);
			DATA_IN=receive7279();
			CS=1;
			gw=DATA_IN%10;
			sw=DATA_IN/10;
			send7279(RTL_UNCYL);
			send7279(RTL_UNCYL);
			send7279(DECODE0+1);
			send7279(sw);
			send7279(DECODE0);
			send7279(gw);
			CS=1;
			while(KEY==0);*/
		}	
	}
}