12864显示求助

只看该作者 · 2014-7-18 23:05

12864显示一直出问题，背景能亮，但是无法显示。忙检测无法跳出，就算屏蔽了不执行忙检测也没有显示。刚从51转到430.求教

只看该作者 · 2014-7-18 23:11

这是我写的12864的C文件。这个文件在51上执行没有任何问题。真心不明白啊
#include "msp430x54x.h"
#include <stdlib.h>
#include <stdio.h>
#include "PIN_DEF.H"
#include "12864.h"
#define unchar unsigned char
#define unint unsigned int

//12864初始化控制端口置为输出
void _12864_init()
{
  P3DIR|=BIT7;
  P3OUT|=BIT7;
  P1DIR|=BIT2;
  P1OUT&=~BIT2;
  RW_OUT_MOD;
  E_OUT_MOD;
  RS_OUT_MOD;
}
//检测忙信号
unchar busy()
{
  unchar result;
  unchar record;
  data_in_mod;
  RS_OUT_MOD;
  RW_OUT_MOD;
  E_OUT_MOD;
  RW_H;
  RS_L;
  E_H;
  __delay_cycles(100);
  record=P4IN;
  result=(unchar)(record&0x80);
  E_L;
  return(result);
}
//写指令
void write(unchar cmd)
{
  while(busy());
  RS_OUT_MOD;
  RW_OUT_MOD;
  E_OUT_MOD;
  RS_L;
  RW_L;
  E_L;
  __delay_cycles(100);
  data_out_mod;
  P4OUT=cmd;
  __delay_cycles(100);
  E_H;
  __delay_cycles(100);
  E_L;
}
//写数据
void write_data(unchar data)
{
  RS_OUT_MOD;
  RW_OUT_MOD;
  E_OUT_MOD;
  RS_H;
  RW_L;
  E_L;
  __delay_cycles(100);
  data_out_mod;
  P4OUT=data;
  __delay_cycles(100);
  E_H;
  __delay_cycles(100);
  E_L;
}
//读数据
unchar read_data()
{
  RS_OUT_MOD;
  RW_OUT_MOD;
  E_OUT_MOD;
  unchar data;
  while(busy());
  data_in_mod;
  RS_H;
  RW_L;
  __delay_cycles(100);
  data=P4IN;
  E_L;
  return(data);
}
//确定基本参数如基本动作还是高级动作
void LCD_init()
{
  write(0x30);
  __delay_cycles(100);
  write(0x0c);
  __delay_cycles(100);
  write(0x01);
  __delay_cycles(100);
}
//基本动作显示字符的显示位子
void lcd_pos(unchar X,unchar Y)
{
  unchar pos;
  if(X==0)
  {X=0x80;}
  else if(X==1)
  {X=0x90;}
  else if(X==2)
  {X=0x88;}
  else if(X==3)
  {X=0x98;}
  pos=X+Y;
  write(pos);
}
//清屏
void LCD_clear()
{
  unchar hang,lie;
write(0x34);//开扩充指令集

for(hang=0;hang<32;hang++)
{

write(0x80+hang);//先写Y坐标
write(0x80);//写X坐标

for(lie=0;lie<16;lie++)
{
write_data(0X00);
}
}

for(hang=0;hang<32;hang++)
{
   write(0x80+hang);//先写Y坐标
   write(0x88);//写X坐标
//X范围0~7
   for(lie=0;lie<16;lie++)
{
write_data(0X00);
}
}
write(0x36);
write(0x30);
}