单片机的最简单的几个编程

最新推荐文章于 2025-06-28 17:22:51 发布

JUST_HUA

最新推荐文章于 2025-06-28 17:22:51 发布

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本文链接：https://blog.youkuaiyun.com/JUST_HUA/article/details/53040659

本文介绍了如何使用单片机进行独立键盘和矩阵键盘的编程，包括显示部分的实现和按键扫描算法，同时展示了针对LCD显示屏的初始化及字符显示操作。

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独立键盘

#include <reg52.h>

sbit LED = P0^0;
sbit KEY = P1^0;

void main()
{
while(1)
{
if(0 == KEY)
{
LED = 0;
}
else
{
LED = 1;
}
}

}

矩阵键盘

#include <reg52.h>
#include "delay.h"

#define SEGPORT P0
#define KEYPORT P3
sbit wei_select = P1^0;
sbit duan_select = P1^1;
unsigned char segport[2] = {0xfe,0xfd};
unsigned char segdata[16] = {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
unsigned char TempData[2];

void display_seg()
{
static unsigned char i = 0;
SEGPORT = 0xff;
wei_select = 1;
wei_select = 0;

SEGPORT = 0x0;
duan_select = 1;
duan_select = 0;

SEGPORT = segport[i];
wei_select = 1;
wei_select = 0;

SEGPORT = TempData[i];
duan_select = 1;
duan_select = 0;

i++;
if(2 == i)