我调试不好12864（st7565)的驱动

只看该作者 · 2011-5-2 01:16

我写过ks0108的可以，这个就写不好，哪里错了啊aaaa?

#include <p30f4011.h>
#define RES LATBbits.LATB7
#define A0  LATBbits.LATB6
#define CLK LATBbits.LATB5
#define SDA LATBbits.LATB4
const unsigned char L[8]={0x00,0x42,0x7e,0x82,0x40,0x60,0x00};

//延时
void delay(int x)
{
int y;
for(;x>0;x--)
{
      for(y=0;y<1000;y++)
      {}

}
}

//写一个字节
void write(unsigned char byte)
{
unsigned char i,data;
CLK=1;
for(i=0;i<8;i++)
{
      CLK=0;
      data=byte&0x80;
      if(data)
      {
         SDA=1;
      }
      else
      {
         SDA=0;
      }

      asm("nop");
      asm("nop");
      CLK=1;
      asm("nop");
      asm("nop");
      byte<<=1;
}
}

//写命令
void writecommandlcd(unsigned char byte)
{
      A0=0;
      write(byte);

}

//写数据
void writebytelcd(unsigned char byte)
{
      A0=1;
      write(byte);

}

//设置页列
void lcdsetxy(unsigned char x,unsigned char y)
{
unsigned temp;
writecommandlcd(0xb0|x);
temp=y>>4;
writecommandlcd(0x10|temp);
temp=0x0f&y;
writecommandlcd(temp);
}

//显示一个字符
void display88(unsigned char x,unsigned y,const char *p)
{
unsigned i;
lcdsetxy(x,y);
for(i=0;i<8;i++)
{
      writebytelcd(*(p++));
}
}

//初始化
void lcdint()
{
      RES=0;复位
      delay(10);
      RES=1;
      delay(10);
      writecommandlcd(0xe2);内部复位
      writecommandlcd(0xaf);开显示
      writecommandlcd(0x2f);
      writecommandlcd(0x26);
      writecommandlcd(0x81);
      writecommandlcd(0x0f);
      writecommandlcd(0xa0);
      writecommandlcd(0xc0);
      writecommandlcd(0xa6);
      writecommandlcd(0xa4);
      writecommandlcd(0xac);
      writecommandlcd(0x00);
      writecommandlcd(0xf8);
      writecommandlcd(0x00);

      writecommandlcd(0x40);显示起始行
      display88(1,1,L);
}