【赛元95F】+6.DIY拓展4：焊接Lcd屏，准备盖2楼啦！

//lcd1602.c代码

#include "lcd1602.h"



sbit rs = P2^7;

sbit rw = P2^6;

sbit en = P2^5;

#define  Lcd_Date  P3

/*****************************************************

*函数名称：Lcd1602_Delay(unsigned int c) 

*函数功能：lcd1602延时函数

*入口参数：unsigned int c

*出口参数：void

*****************************************************/

void Lcd1602_Delay(unsigned int c)   

{

  unsigned char a,b;

        for (; c>0; c--)

        {

                 for (b=199;b>0;b--)

                    for(a=4;a>0;a--);              

        }

            

}



/*****************************************************

*函数名称：void LcdWriteCom(unsigned char cmd)  

*函数功能：lcd1602写指令函数

*入口参数：unsigned char cmd

*出口参数：void

*****************************************************/

void LcdWriteCom(unsigned char cmd) 

{

   rs = 0;

         rw = 0;

         en = 0;

         Lcd_Date = cmd;

         Lcd1602_Delay(1);

         en = 1;

         Lcd1602_Delay(5);

         en = 0;

}

/*****************************************************

*函数名称：void LcdWriteData(unsigned char date)  

*函数功能：lcd1602写数据函数

*入口参数：unsigned char date

*出口参数：void

*****************************************************/

void LcdWriteData(unsigned char date)

{

         rs = 1;

         rw = 0;

         en = 0;

         Lcd_Date = date;

         Lcd1602_Delay(1);

         en = 1;

         Lcd1602_Delay(5);

         en = 0;

}



/*****************************************************

*函数名称：void LcdInit(void)   

*函数功能：lcd1602初始化函数

*入口参数：void

*出口参数：void

*****************************************************/

void LcdInit(void) 

{

        LcdWriteCom(0x38);  //开显示

        Lcd1602_Delay(5);

        LcdWriteCom(0x0c);  //不显示光标

        Lcd1602_Delay(5);

        LcdWriteCom(0x06);  //写1个指针加1

        Lcd1602_Delay(5);

        LcdWriteCom(0x01);  //清屏

        Lcd1602_Delay(5);

        LcdWriteCom(0x80);  //设置数据指针起点

        Lcd1602_Delay(5);

}



/*****************************************************

*函数名称：void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)   

*函数功能：按指定位置显示一个字符

*入口参数：unsigned char X, unsigned char Y, unsigned char DData,限制X不能大于15，Y不能大于1

*出口参数：void

*****************************************************/

void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData)

{

         Y &= 0x1;

         X &= 0xF; //限制X不能大于15，Y不能大于1

         if (Y) X |= 0x40; //当要显示第二行时地址码+0x40;

         X |= 0x80; // 算出指令码

         LcdWriteCom(X); //这里不检测忙信号，发送地址码

         LcdWriteData(DData);

}

/*****************************************************

*函数名称：void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData) 

*函数功能：按指定位置显示一个字符串

*入口参数：unsigned char X, unsigned char Y, unsigned char code *DData,限制X不能大于15，Y不能大于1

*出口参数：void

*****************************************************/

void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData)

{

  unsigned char ListLength;

  ListLength = 0;

  Y &= 0x1;

  X &= 0xF; //限制X不能大于15，Y不能大于1

  while (DData[ListLength]>=0x20) //若到达字串尾则退出

  {

                 if (X <= 0xF) //X坐标应小于0xF

                        {

                         DisplayOneChar(X, Y, DData[ListLength]); //显示单个字符

                         ListLength++;

                         X++;

                        }

  }

}

/****************************************************************************/

//lcd1602.h代码

#ifndef _LCD1602_H

#define _LCD1602_H

#include "H/SC95F861x_C.H"

void Lcd1602_Delay(unsigned int c);

void LcdWriteCom(unsigned char cmd);

void LcdWriteData(unsigned char date);

void LcdInit(void); 

void DisplayOneChar(unsigned char X, unsigned char Y, unsigned char DData);

void DisplayListChar(unsigned char X, unsigned char Y, unsigned char code *DData);

#endif

/****************************************************************************/

//main.c测试代码



IO_Init();

Uart_Init(32,9600);

Uart_Send_String("\r\n串口初始化..............OK!\n");

Timer_Init();

Uart_Send_String("定时器初始化..............OK!\n");

LcdInit();

Uart_Send_String("Lcd初始化..............OK!\n");

DisplayListChar(0, 0, "SC 95F8617 Demo!");

DisplayListChar(9, 1, "--21ic");