lcd1602.c

来自「驱动ADUC845进行AD采样」· C语言 代码 · 共 65 行

#include "lcd1602.h"
/*void checkbusy(void)
{lcd=0xff;
 enable=0;
 rw=1;
 rs=0;
 enable=1;
 delay(100);
 while(lcd&busy);
 enable=0;
}*/
/************延时函数*/
void Delay(uint i)
{
  while(i--);
}
/*写指令函数*/
void Write_Instruction(uchar x)
{
 Delay(1000);
 E=0;
 RW=0;
 RS=0;
 LCDData=x;
 E=1;
 Delay(20);
 E=0;
 }
/*写单个数据的函数*/
void Write_Data(uchar x)
{
 Delay(1000);
 E=0;
 RW=0;
 RS=1;
 E=1;
 LCDData=x;
 E=0;
}
/*清屏函数*/
void Cls(void)
{
  Write_Instruction(0x01);
}
/*写入一串字符串函数*/
void Write_String(uchar x,uchar *p)
{ Write_Instruction(x);
  while(*p!=0x00)
 {Write_Data(*p);
  p++;
  if (x++==0x8f)
  {Write_Instruction(0xc0);}
 }
}
/*初始化函数*/
void InitLCD(void)
{Write_Instruction(0x38);
 Delay(200);
 Write_Instruction(0x0e);
 Delay(200);
 Write_Instruction(0x06);
 Delay(200);
}