lcd液晶12232f的串口c51程序.asm

LCD12232f的串口C51程序,可供参考

#include <AT89X52.H>
#include <intrins.h>



#define uint unsigned int
#define uchar unsigned char



/*12232f pins define*/
sbit CS=P1^5;
sbit SID=P1^6;
sbit SCLK=P1^7;



void delay_1ms(uint x)
{
uint j;
uchar i;
for(j=0;j<x;j++)
{
for(i=0;i<120;i++);
}
}



void send_command(uchar command_data)
{
uchar i;
uchar i_data,temp_data1,temp_data2;
i_data=0xf8;
delay_1ms(10);
CS=1;
SCLK=0;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
i_data=command_data;
i_data&=0xf0;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
i_data=command_data;
temp_data1=i_data&0xf0;
temp_data2=i_data&0x0f;
temp_data1>>=4;
temp_data2<<=4;
i_data=temp_data1|temp_data2;
i_data&=0xf0;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
CS=0;
}

void send_data(uchar command_data)
{
uchar i;
uchar i_data,temp_data1,temp_data2;
i_data=0xfa;
delay_1ms(10);
CS=1;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
i_data=command_data;
i_data&=0xf0;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
i_data=command_data;
temp_data1=i_data&0xf0;
temp_data2=i_data&0x0f;
temp_data1>>=4;
temp_data2<<=4;
i_data=temp_data1|temp_data2;
i_data&=0xf0;
for(i=0;i<8;i++)
{
SID=(bit)(i_data&0x80);
SCLK=0;
SCLK=1;
i_data=i_data<<1;
}
CS=0;
}



void lcd_init()
{
uchar command_data;
delay_1ms(100);
command_data=0x30;
send_command(command_data); /*功能设置:一次送8位数据,基本指令集*/
command_data=0x04;
send_command(command_data); /*点设定:显示字符/光标从左到右移位,DDRAM地址加1*/
command_data=0x0f;
send_command(command_data); /*显示设定:开显示,显示光标,当前显示位反白闪动*/
command_data=0x01;
send_command(command_data); /*清DDRAM*/
command_data=0x02;
send_command(command_data); /*DDRAM地址归位*/
command_data=0x80;
send_command(command_data); /*把显示地址设为0X80，即为第一行的首位*/
}



void display_cpubbs()
{
uchar command_data;
while(1)
{
command_data=0x01;
send_command(command_data); /*清DDRAM*/
command_data=0x80;
send_command(command_data); /*把显示地址设为0X80，即为第一行的首位*/
command_data=0x68; /*“h”字的编码*/
send_data(command_data);
command_data=0x74;
send_data(command_data); /*“t”字的编码*/
command_data=0x74;
send_data(command_data); /*“t”字的编码*/
command_data=0x70;
send_data(command_data); /*“p”字的编码*/
command_data=0x3a;
send_data(command_data); /*“:”字的编码*/
command_data=0x2f;
send_data(command_data); /*“/”字的编码*/
command_data=0x2f;
send_data(command_data); /*“/”字的编码*/
command_data=0x57;
send_data(command_data); /*“w”字的编码*/
command_data=0x57;
send_data(command_data); /*“w”字的编码*/
command_data=0x57;
send_data(command_data); /*“w”字的编码*/
command_data=0x2e;
send_data(command_data); /*“.”字的编码*/
command_data=0x63;
send_data(command_data); /*“c”字的编码*/
command_data=0x70;
send_data(command_data); /*“p”字的编码*/
command_data=0x75;
send_data(command_data); /*“u”字的编码*/
command_data=0x62;
send_data(command_data); /*“b”字的编码*/

command_data=0x90;
send_command(command_data); /*把显示地址设为0X90，即为第二行的首位，因为第一行已经满了*/
command_data=0x62;
send_data(command_data); /*“b”字的编码*/
command_data=0x73;
send_data(command_data); /*“s”字的编码*/
command_data=0x2e;
send_data(command_data); /*“.”字的编码*/
command_data=0x63;
send_data(command_data); /*“c”字的编码*/
command_data=0x6f;
send_data(command_data); /*“o”字的编码*/
command_data=0x6d;
send_data(command_data); /*“m”字的编码*/

delay_1ms(3000);

command_data=0x01;
send_command(command_data); /*清DDRAM*/
command_data=0x80;
send_command(command_data); /*把显示地址设为0X80，即为第一行的首位*/

command_data=0xbb;
send_data(command_data);
command_data=0xb6;
send_data(command_data); /*“欢”字的编码*/
command_data=0xd3;
send_data(command_data);
command_data=0xad;
send_data(command_data); /*“迎”字的编码*/
command_data=0xb7;
send_data(command_data);
command_data=0xc3;
send_data(command_data); /*“访”字的编码*/
command_data=0xce;
send_data(command_data);
command_data=0xca;
send_data(command_data); /*“问”字的编码*/
command_data=0x90;
send_command(command_data); /*把显示地址设为0X90，即为第二行的首位，因为第一行已经满了*/
command_data=0x63;
send_data(command_data); /*“c”字的编码*/
command_data=0x70;
send_data(command_data); /*“p”字的编码*/
command_data=0x75;
send_data(command_data); /*“u”字的编码*/
command_data=0x62;
send_data(command_data); /*“b”字的编码*/
command_data=0x62;
send_data(command_data); /*“b”字的编码*/
command_data=0x73;
send_data(command_data); /*“s”字的编码*/
command_data=0xc2;
send_data(command_data);
command_data=0xdb;
send_data(command_data); /*“论”字的编码*/
command_data=0xcc;
send_data(command_data);
command_data=0xb3;
send_data(command_data); /*“坛”字的编码*/
delay_1ms(3000);
}
}



main()
{
uchar command_data;
lcd_init();
display_cpubbs();
while(1);
}