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53 lines
1.3 KiB
53 lines
1.3 KiB
#ifndef __LCD_H_ |
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#define __LCD_H_ |
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/********************************** |
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当使用的是4位数据传输的时候定义， |
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使用8位取消这个定义 |
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**********************************/ |
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//#define LCD1602_4PINS |
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/********************************** |
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包含头文件 |
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**********************************/ |
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#include <reg51.h> |
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//---重定义关键词---// |
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#ifndef uchar |
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#define uchar unsigned char |
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#endif |
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#ifndef uint |
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#define uint unsigned int |
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#endif |
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/********************************** |
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PIN口定义 |
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**********************************/ |
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//#define LCD1602_DB P0 //data bus 数据总线 |
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//sbit LCD1602_RS = P2^6; |
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//sbit LCD1602_RW = P2^5; |
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//sbit LCD1602_EN = P2^7; |
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#define LCD1602_DB P2 //data bus 数据总线 |
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sbit LCD1602_RS=P0^7; |
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sbit LCD1602_RW=P0^6; |
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sbit LCD1602_EN=P0^5; |
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/********************************** |
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函数声明 |
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**********************************/ |
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/*在51单片机12MHZ时钟下的延时函数*/ |
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void Lcd1602_Delay1ms(uint c); //误差 0us |
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void Read_Busy(); //忙检测函数，判断bit7是0，允许执行；1禁止 |
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void Lcd1602_Write_Cmd(unsigned char cmd); //写命令 |
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void Lcd1602_Write_Data(unsigned char dat); //写数据 |
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void LcdSetCursor(unsigned char x,unsigned char y); //坐标显示 |
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void LcdShowStr(unsigned char x,unsigned char y,unsigned char *str); //显示字符串 |
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void InitLcd1602(); //1602初始化 |
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void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData); |
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#endif
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