32

32 * 32 dot-matrix program, set up the typewriter font size type 32 * 32 dot-matrix program, set up

文件头:
/*************************************************

程序名称:32x64LED点阵上显示32X32的汉字

日期    :2006.11.25

程序说明:一个汉字占128个字节，点阵每一行数据占4个字节

作者	:liuanggh	

*************************************************/

#include <reg52.h>

#include "P1.h"



sbit  	LOAD 	=P3^2;	//74LS595锁存

sbit  	RST 	=P3^3;  //

sbit 	SLECET 	=P2^3;  //74LS138译码器使能端,低电平有效



uchar code line[] = {   //行扫描段码

						0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07

					};

uchar line_count;			//行计数器

uchar move_count;			//移位计数器

uchar font_count;			//字计数器

uchar buff[16] = {0x00};				//一行有64列,每8列数据占一个字节，所以缓冲区需要8个字节



void transform_data();  //数据转换

void send_data();  		//串行发送8个字节的数据



main()

{

	uchar i;

	uchar j = 0;

	SCON = 0;			//串口工作在方式0下

	SLECET = 1;     	//138译码器无效

	RST = 0;        

	RST = 1;			//595复位

	/*

	for(i = 0; i < 32; i++)

	{

		LOAD = 0;

		send_data();

		LOAD = 1;

		P2 = line[j%8];  
文件尾:
0};

	uchar i;

	for( i = 0; i < 4; i++)

	temp[i] = font[(font_count + i) * 8 + line_count]; //取第i行数据

	for( i = 0; i < 4; i++)

	buff[i] = ( temp[ i ] >> move_count )|( temp[ i + 1] << ( 7 - move_count ) );

	*/

	uchar i;

	for(i = 0; i < 4; i++)

	{

		buff[i] = hanzi[ line_count*4 + i];

	}



	for(i = 4; i < 8; i++)

	{

		buff[i] = hanzi[ line_count*4 + i + 128];

	}



	for(i = 8; i < 12; i++)

	{

		buff[i] = hanzi[ line_count*4 + i + 256];

	}



	for(i = 12; i < 16; i++)

	{

		buff[i] = hanzi[ line_count*4 + i + 384];

	}



}





void send_data()  			//串行发送8个字节的数据

{

	uchar i;

	transform_data();			//数据转换



	//显示"阵点"

	for( i = 0; i < 16; i++)

	{

		//SBUF = 0xff;

      SBUF = buff[i];

		while(!TI);

		TI = 0;

	} 



	/*

	//显示"点阵"

	for( i = 4; i < 8; i++)

	{

		//SBUF = 0xff;

      SBUF = buff[i];

		while(!TI);

		TI = 0;

	} 

	for( i = 0; i < 4; i++)

	{

		//SBUF = 0xff;

      SBUF = buff[i];

		while(!TI);

		TI = 0;

	} 

	*/

}