#include <reg52.h>
#include <string.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
void Initialize_LCD();
void ShowString(uchar,uchar,uchar *);
uchar code init[][80]=
{
"Current Number:",
};
uchar code line[][80]=
{
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"A",
"B",
"C",
"D",
"E",
"F"
};
uchar code KeyCodeTable[]=
{
0x11,0x12,0x14,0x18,0x21,0x22,0x24,0x28,0x41,0x42,0x44,0x48,0x81,0x82,0x84,0x88
};
void Delay()
{
uchar i;
for(i=0;i<200;i++);
}
uchar Keys_Scan()
{
uchar sCode,kCode,i,k;
P1 = 0xf0;
if((P1&0xf0)!=0xf0)
{
Delay();
if((P1&0xf0)!=0xf0)
{
sCode = 0xfe;
for(k=0;k<4;k++)
{
P1 = sCode;
if((P1&0xf0)!=0xf0)
{
kCode = ~P1;
for(i=0;i<16;i++)
{
if(kCode == KeyCodeTable[i])
return i;
}
}
else
sCode = _crol_(sCode,1);
}
}
}
return -1;
}
void main()
{
uint Count = 0;
uchar KeyNO = -1;
IE = 0x81;
IT0 = 1;
F0 = 0;
Initialize_LCD();
ShowString(0,0,init[0]);
while(1)
{
KeyNO = Keys_Scan();
if(KeyNO != -1)
{
ShowString(0,1,line[KeyNO]);
}
}
}
4x4键盘LCD1602显示.zip （31个子文件） 
4x4键盘LCD1602显示 
keyboard_display.uvgui.86158 70KB STARTUP.LST 14KB LCD1602.OBJ 5KB keyboard_display.M51 13KB keyboard_display.uvopt 6KB proteus keyboard_display.pdsprj.LAPTOP-GBCG324V.86158.workspace 3KB keyboard_display.pdsprj 20KB Project Backups New Project [20240421, 00-38-20].pdsprj 17KB New Project [20240421, 00-29-13].pdsprj 16KB New Project [20240420, 23-24-46].pdsprj 16KB New Project [20240420, 23-21-35].pdsprj 16KB New Project [Autosaved].pdsprj 20KB New Project [20240421, 19-20-18].pdsprj 17KB New Project [20240420, 23-40-02].pdsprj 16KB New Project [20240420, 23-45-10].pdsprj 16KB New Project [20240420, 23-39-44].pdsprj 16KB New Project [20240420, 23-15-32].pdsprj 16KB New Project [20240421, 20-40-07].pdsprj 20KB main.OBJ 7KB LCD1602.c 1KB keyboard_display.plg 177B STARTUP.A51 6KB LCD1602.LST 3KB main.LST 3KB keyboard_display.uvproj 13KB keyboard_display.uvgui_86158.bak 70KB STARTUP.OBJ 758B keyboard_display.lnp 69B main.c 1KB keyboard_display 11KB keyboard_display.hex 5KB资源评论
