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标题: 串行12864显示 [打印本页]

作者: 因为思念谁 时间: 2016-6-4 01:13
标题: 串行12864显示
串行12864显示:
#include <reg52.h>
#include <intrins.h>
#define uchar unsigned char
#define uint  unsigned int

sbit CS=P2^5;
sbit SID=P2^6;
sbit SCLK=P2^7;
sbit RST=P2^2;
sbit CH = P2^4;

void delay(unsigned int t)
{
      while(t--);
}

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

void sendbyte(unsigned char zdata)//发送数据
{
      unsigned int i;
      for(i=0; i<8; i++)
      {
            if((zdata << i) & 0x80)
            {
                     SID = 1;
            }
            else
            {
                     SID = 0;
            }
            SCLK = 0;
            SCLK = 1;
      }
}

//********************************************************************
void write_com(unsigned char cmdcode)//写串口指令
{
      CS = 1;
      sendbyte(0xf8);
      sendbyte(cmdcode & 0xf0);
      sendbyte((cmdcode << 4) & 0xf0);
      delay(2);
}

//********************************************************************
void write_data(unsigned char Dispdata)//写串口数据
{
      CS = 1;
      sendbyte(0xfa);
      sendbyte(Dispdata & 0xf0);
      sendbyte((Dispdata << 4) & 0xf0);
      delay(2);
}

//********************************************************************
void LEDinit()//初始化led
{
      RST = 0;
      delay(100);
      RST = 1;
      delay(20000);
      write_com(0x30);
      delay(50);
      write_com(0x0c);
      delay(50);
}

//********************************************************************
void stringPlay(unsigned char code *s)//显示字符串
{
      while(*s > 0)
{
            write_data(*s);
            s++;
            delay(50);
}
}

//********************************************************************
void Dislay()//显示子函数
{
      write_com(0x03);
      delay(50);
      write_com(0x81);
      stringPlay(" 白鹤依山尽，");
      write_com(0x91);
      stringPlay(" 黄河入海流。");
      write_com(0x89);
      stringPlay("  欲穷千里目， ");
      write_com(0x98);
      stringPlay("  更上一层楼。");
}

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

void Main()
{
      CH = 0;
      delay(1);
      LEDinit();
      delay(10);
      while(1)
      {
            Display();
            delay(5000);
      }
}

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