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

程序名稱:32x64LED點陣上顯示32X32的漢字

日期    :2006.11.25

程序說明:一個漢字占128個字節，點陣每一行數據占4個字節

作者	:liuanggh	

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

#include <reg52.h>

#include "P1.h"



sbit  	LOAD 	=P3^2;	//74LS595鎖存

sbit  	RST 	=P3^3;  //

sbit 	SLECET 	=P2^3;  //74LS138譯碼器使能端,低電平有效



uchar code line[] = {   //行掃描段碼

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

					};

uchar line_count;			//行計數器

uchar move_count;			//移位計數器

uchar font_count;			//字計數器

uchar buff[16] = {0x00};				//一行有64列,每8列數據占一個字節，所以緩沖區需要8個字節



void transform_data();  //數據轉換

void send_data();  		//串行發送8個字節的數據



main()

{

	uchar i;

	uchar j = 0;

	SCON = 0;			//串口工作在方式0下

	SLECET = 1;     	//138譯碼器無效

	RST = 0;        

	RST = 1;			//595復位

	/*

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

	{

		LOAD = 0;

		send_data();

		LOAD = 1;

		P2 = line[j%8];  
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0};

	uchar i;

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

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

	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()  			//串行發送8個字節的數據

{

	uchar i;

	transform_data();			//數據轉換



	//顯示"陣點"

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

	{

		//SBUF = 0xff;

      SBUF = buff[i];

		while(!TI);

		TI = 0;

	} 



	/*

	//顯示"點陣"

	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;

	} 

	*/

}