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標題: 求助STC90C514AD的12864顯示移植STC15W408AS單片機問題 [打印本頁]

作者: herui2128 時間: 2022-7-11 14:17
標題: 求助STC90C514AD的12864顯示移植STC15W408AS單片機問題
最近在學STC15W408AS單片機，以前使用及顯示正常的STC90C514AD和12864點陣液晶程序移植過來后，出現顯示異常，求指導。

單片機源程序如下:
#include "stc15.h"
#include <intrins.h>
#include "LCD_12864.h"

void main()
{
      P3M1 = 0x00;
      P3M0 = 0x00;
      LCD_Init( );                                     //初始化
      LCD_ClearTXT( );                               //文本區清RAM函數
      LCD_ClearBMP( );

      LCD_Ascii(1,0,"12345678       ");

      while (1);
}

#define uint unsigned int
#define uchar unsigned char
////***********12864***************
//sbit CS=P3^5;  //開發版引腳聲明
//sbit SID=P3^6;
//sbit SCK1=P3^4;

sbit CS=P3^7;
sbit SID=P3^6;
sbit SCK1=P3^5;

unsigned char code bmp1[],bmp2[];

//串口發送一個字節
void LCD_SendByte(unsigned char Dbyte)
{
   unsigned char i;
   for(i=0;i<8;i++)
   {
         SCK1 = 0;
         Dbyte=Dbyte<<1;    //左移一位
         SID = CY;          //移出的位給SID
         SCK1 = 1;
         SCK1 = 0;
   }
}

//****************送命令********************
void LCD_WriteCommand( unsigned char Cbyte )
{
   CS = 1;
   LCD_SendByte(0xf8);          //11111,RW(0),RS(0),0
   LCD_SendByte(0xf0&Cbyte);    //高四位
   LCD_SendByte(0xf0&Cbyte<<4); //低四位(先執行<<)
   CS = 0;
}

//****************送數據********************
void LCD_WriteData( unsigned char Dbyte )
{
   CS = 1;
   LCD_SendByte(0xfa);          //11111,RW(0),RS(1),0
   LCD_SendByte(0xf0&Dbyte);    //高四位
   LCD_SendByte(0xf0&Dbyte<<4); //低四位(先執行<<)
      CS = 0;
}

//****************初始化********************
void LCD_Init( void )
{
   LCD_WriteCommand(0x34);    //8BitMCU,基本指令集合
   LCD_WriteCommand(0x30);    //AC歸0,不改變DDRAM內容
   LCD_WriteCommand(0x01);    //顯示ON,游標OFF,游標位反白OFF
   LCD_WriteCommand(0x06);    //清屏,AC歸0
   LCD_WriteCommand(0x0c);    //寫入時,游標右移動
}

void LCD_pos(uchar X,uchar Y)
{
uchar  pos;
LCD_WriteCommand(0x30); //顯示文本命令
if    (X==1) {X=0x80;}                //第一行
else if (X==2) {X=0x90;}
else if (X==3) {X=0x88;}
else if (X==4) {X=0x98;}
pos = X+Y ;
LCD_WriteCommand(pos);    //顯示地址
}

//***************文本區清RAM函數****************************
void LCD_ClearTXT( void )
{
         LCD_WriteCommand(0x01);
            LCD_WriteCommand(0x34);
         LCD_WriteCommand(0x30);
}

//**************圖形區清RAM函數****************************************
void LCD_ClearBMP( void )
{
   unsigned char i,j;
   LCD_WriteCommand(0x34);    //8Bit擴充指令集,即使是36H也要寫兩次
   for(i=0;i<32;i++)          //12864實際為256x32
   {
         LCD_WriteCommand(0x80|i); //行位置
         LCD_WriteCommand(0x80);    //列位置
         for(j=0;j<32;j++)  //256/8=32 byte
         LCD_WriteData(0);
   }
      LCD_WriteCommand(0x36);  //數據送完后最后開顯示
}

void LCD_DATA_3(uchar X,uchar Y,unsigned  long  DATA)
{
      LCD_pos(X,Y);
      if(DATA>=0 && DATA<10)
      {
               LCD_WriteData(DATA+0X30);
      }
      else if(DATA<100 && DATA>=10)
      {
               LCD_WriteData(DATA/10+0X30);
//             LCD_WriteData('C');
               LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<1000 && DATA>=100)
      {
               LCD_WriteData(DATA/100+0X30);
//             LCD_WriteData('.');
               LCD_WriteData(DATA%100/10+0X30);
               LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<10000 && DATA>=1000)
      {
               LCD_WriteData(DATA/1000+0X30);
               LCD_WriteData(DATA%1000/100+0X30);
               LCD_WriteData(DATA%100/10+0X30);
            LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<100000 && DATA>=10000)
      {
               LCD_WriteData(DATA/10000+0X30);
               LCD_WriteData(DATA%10000/1000+0X30);
            LCD_WriteData(DATA%1000/100+0X30);
               LCD_WriteData(DATA%100/10+0X30);
            LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<1000000 && DATA>=100000)
      {
               LCD_WriteData(DATA/100000+0X30);
               LCD_WriteData(DATA%100000/10000+0X30);
            LCD_WriteData(DATA%10000/1000+0X30);
               LCD_WriteData(DATA%1000/100+0X30);
            LCD_WriteData(DATA%100/10+0X30);
            LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<10000000 && DATA>=1000000)
      {
               LCD_WriteData(DATA/1000000+0X30);
               LCD_WriteData(DATA%1000000/100000+0X30);
            LCD_WriteData(DATA%100000/10000+0X30);
               LCD_WriteData(DATA%10000/1000+0X30);
            LCD_WriteData(DATA%1000/100+0X30);
            LCD_WriteData(DATA%100/10+0X30);
            LCD_WriteData(DATA%10+0X30);
      }
      else if(DATA<100000000 && DATA>=10000000)
      {
               LCD_WriteData(DATA/10000000+0X30);
               LCD_WriteData(DATA%10000000/1000000+0X30);
            LCD_WriteData(DATA%1000000/100000+0X30);
               LCD_WriteData(DATA%100000/10000+0X30);
            LCD_WriteData(DATA%10000/1000+0X30);
            LCD_WriteData(DATA%1000/100+0X30);
            LCD_WriteData(DATA%100/10+0X30);
            LCD_WriteData(DATA%10+0X30);
      }
}

//****************送字符串*********************************************
//1行顯示的是8個字符
//顯示8個修改參數即可
void LCD_Ascii(unsigned char row,unsigned char col,unsigned char *puts)
{

      LCD_WriteCommand(0x30);    //8BitMCU,基本指令集合
      LCD_pos(row,col);                         //確定顯示地址
   while(*puts != '\0')       //判斷字符串是否顯示完畢
   {
         if(col==8)          //判斷換行
         {                   //若不判斷,則自動從第一行到第三行
               col=0;
               row++;
         }
         if(row==5) row=0;       //一屏顯示完,回到屏左上角
               LCD_pos(row,col);                //確定顯示地址
         LCD_WriteData(*puts);    //一個漢字要寫兩次
         puts++;
         LCD_WriteData(*puts);
         puts++;
         col++;
   }
}
//**********字符反白顯示*************************************************
//輸入參數:CX=要反白字符的行(0-3)
//CY=要反白字符的列(0-7)
//width=要反白字符的長度(1-16)
//off_on開反白關反白

void LCD_convertChar (uchar CX, CY, width,off_on)
{
      uchar lcdPosX,lcdPosY ;
      uchar halfLineCnt,basicBlock;
//       EA=0;
      halfLineCnt = 16;
      if    (CX == 1){CX = 0x80;lcdPosY= 0x80;}
      else if (CX == 2){CX = 0x90;lcdPosY= 0x90;}
      else if (CX == 3){CX = 0x88;lcdPosY= 0x80;}
      else if (CX == 4){CX = 0x88;lcdPosY= 0x90;}
      lcdPosX = CX + CY;
for (; halfLineCnt != 0; halfLineCnt--)
      {
            basicBlock = width&0x1F; //低5位，主要是0到16
            LCD_WriteCommand(0x36);
            LCD_WriteCommand(lcdPosY);
            LCD_WriteCommand(lcdPosX);
            LCD_WriteCommand(0x30);

            for (;basicBlock != 0; basicBlock--)
            {
                     if(off_on==0)                      //關反白
                     {
                              LCD_WriteData(0x00);
                     }
                     else
                     {
                              LCD_WriteData(0xff);//開反白
                     }
            }
            lcdPosY++;
      }
      LCD_WriteCommand(0x36);
      LCD_WriteCommand(0x30);
}

【STC15W408AS】驅動12864液晶.rar

40.23 KB, 下載次數: 10

作者: zhb2004xp 時間: 2022-7-11 15:33
這種移植主要是因為芯片的運行速度不同導致的問題。需要查看12864數據時序，增加延時，或添加多個空函數達到延時效果！

作者: herui2128 時間: 2022-7-11 16:08
謝謝，已經增加延時2MS解決了

作者: caoxinri123 時間: 2022-7-11 16:09
時序不對

歡迎光臨 (http://www.zg4o1577.cn/bbs/)