小弟有个问题.这是我的程序,行地址和列地址我想修改,但是就是改不了,而且但我改了列地址y_address的初值时,显示还会出错.这是为什么?要怎样才能修改到行地址和列地址呢
#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
#define true 1
uchar bw[61]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
uchar *p;
uchar uci;
uchar ucd;
uchar ucc; //页地址加
uchar ucf; //列地址加
sbit E2=P3^7; //LCD右半屏使能端
sbit E1=P3^6; //LCD白箅屏使能端
sbit R_W=P3^5; //LCD的R/W端
sbit A0=P3^4; //LCD的A0端,1/0为:写数据/指令
uchar x_address; //LCD页地址
uchar y_address; //LCD列地址
void delay(uint x)
{
uchar ucy=125;
while(x--)
{for(ucy;ucy>0;ucy++);
}
}
void WRI(uci) //写指令
{
E1=0;
E2=0;
A0=0;
P2=uci;
E1=1;
E2=1;
delay(2);
E1=0;
E2=0;
}
void WRD(ucd) //写数据
{
//E1=0;
E2=0;
A0=1;
P2=ucd;
//E1=1;
E2=1;
delay(2);
//E1=0;
E2=0;
}
void Display_all(uchar LCD_data)//显示或熄灭全屏
{
//WRI(0xe2); //复位
for(ucc=4;ucc>0;ucc--)
{
WRI(0xe2); //复位
WRI(x_address); //页地址
WRI(y_address); //列地址
WRI(0xe0); //“读-修改-写”模式设置,列地址加一
for(ucf=61;ucf>0;ucf--)//列地址加61次,满足一屏的列数
{
WRD(LCD_data); //写数据
}
WRI(0xee); //end
x_address++;
}
}
void black_white()
{
//x_address=0xb8; //页地址 初址0xb8
//y_address=0x00; //列地址 初址0x00 (设置出现问题)
for(ucc=4;ucc>0;ucc--)
{
WRI(0xe2); //复位
WRI(x_address); //页地址
WRI(y_address); //列地址
WRI(0xe0); //“读-修改-写”模式设置,列地址加一
p=bw;
for(ucf=61;ucf>0;ucf--)//列地址加61次,满足一屏的列数
{
WRD(*p);
delay(2);//延时２ms
p++;
//y_address++;
}
WRI(0xee); //end
x_address++;
}
}
main()
{
x_address=0xb8; //页地址 初址0xb8
y_address=0x00; //列地址 初址0x00 (设置出现问题)
R_W=0; //写有效
WRI(0xaf); //显示模式设置
//WRI(0xcf); //START = 0 设置显示起始行（行地址设置出现问题）
WRI(0xc0);
WRI(0xa4); //静态驱动关
WRI(0xa9); //duty=1/32
WRI(0xa0); //反向显示(正向为0a0H)与原来成镜像
WRI(0xe2); //reset,从第一页开始显示，如果不是就从第三页开始显示
while(1)
{
//Display_all(0xff);//显示全屏
delay(5000);
delay(5000);
delay(5000);
delay(5000);
delay(5000);
delay(5000);
//
//delay(200);
black_white(); //显示黑和白
delay(5000);
delay(5000);
delay(5000);
delay(5000);
delay(5000);
//Display_all(0x00);//熄灭全屏
}
}
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