dpy.c

51单片机的键盘扫描程序,当有键盘输入是,将在LED上显示,且蜂鸣器将发出相应的响声.

//dpy.c
#include"general.h"
#include"sys12M.h"
BYTE code dpy_code[11] = 
{0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xFF};
//*************************************
void print_n(BYTE value,BYTE pos)
{
	BYTE temp;
	temp = 0xFE;
	temp = _crol_(temp,pos);
	EAIO = temp;
	DATA = dpy_code[value];
	delay(3);
}
//*************************************
void print_led(BYTE cod)
{
	EAIO = 0x8F;
	DATA = cod;
	delay(3);
}
//*************************************
void print_num(WORD value)
{
	
}