问题:
BUFF[12]装入tab[]的数据为什么要相隔32，这个32也好理解一个汉字转换过来就是32个数据，载入下一个汉字也正好是tab[32]开始，，但从里面的程序来看，一个汉字的32个数据我只看见BUFF[]去载入它的前两个数据，其余的30个数据是怎么送出去显示的呢？
这是一个LED点阵显示屏,可同时显示四个字,并实现按象素点左移
,其中某些和硬件相关的语句暂可以不去管它,只想知道上面问题的答案,这个程序是51的我准备用AVR来控制……
字模：横向取模，高位在左
#include <AT89x52.H>
#include <regx52.h>
#define uchar unsigned char
#define uint unsigned int
#define SPEED 1 //定义速度
#define light 3 //定义亮度
uchar col,disrow; //col为位移变量,disrow为行变量
uint word;
uchar code tab[];
uchar BUFF[12];
void loadoneline(void);
void sendoneline(void);
/****************************主函数***************************/
void main(void)
{
uchar i;
col=0;word=0;
while(1)
{
while(col<16)// 循环16次，点亮并移动一个汉字
{
for(i=0;i<SPEED;i++)//汉字在屏幕上的停留时间（即移动速度快慢）
{
for(disrow=0;disrow<16;disrow++)//扫描16行
{
loadoneline();//装载一线点阵数据
sendoneline();//发送一线点阵数据
P2=(0x10+disrow)^0x60;// 点亮屏幕
P2=(0x20+disrow)^0x60;
P2_5= 1; // 点亮屏幕
P3_1=1; //(CLK=P3_1)上升沿595输出
}
}
col++; //列指针递增
}
col=0;
word=word+32;// 一个汉字移动后，指向下一个汉字
if(word>=1024)
word=0;// 移动28个汉字后，重新开始
}
}
/**************装载一线点阵数据****************/
void loadoneline(void)
{
uchar s;
for(s=0;s<5;s++) //s为要显示的数字+1
{
BUFF[2*s]=tab[word+1+32*s+2*disrow];//~
BUFF[2*s+1]=tab[word+32*s+2*disrow];//~
}
}
/***************发送一线点阵数据*******************/
void sendoneline(void)
{
char s; uchar inc;
if(col<8)
inc=0;
else
inc=1;
for(s=0+inc;s<=7+inc;s++)
{
SBUF=two_onebyte(BUFF,BUFF[s+1]);
while(!TI);
TI=0;
}
}
/*******根据列指针，由双字节合并为单字节的子程序模块12MHZ************/
uchar two_onebyte(uchar h1,uchar h2)
{
uchar temp,tempcol;
if(col<8)
tempcol=col;
else
tempcol=col-8;
temp=(h1>>tempcol)|(h2<<(8-tempcol));
temp=255-temp;//用来取反，由屏的是共阳是共阴决定
return temp;
}
/***********************汉字点阵码*************************/
uchar code tab[]=
{
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//=============================================================================
/*-- 同 -- ** 宋体, 12 *32个数据*/
0x00,0x00,
0x3F,0xFE,
0x20,0x02,
0x20,0x02,
0x2F,0xFA,
0x20,0x02,
0x20,0x02,
0x27,0xF2,
0x24,0x12,
0x24,0x12,
0x24,0x12,
0x27,0xF2,
0x24,0x12,
0x20,0x02,
0x28,0x02,
0x10,0x02,
/*-- 济 -- ** 宋体, 12 **/
0x01,0x02,0x02,0x04,0x7F,0xE4,0x08,0x80,0x05,0x11,0x02,0x12,0x0D,0x8A,0x70,0x68,
0x08,0x88,0x08,0x84,0x08,0x87,0x08,0x84,0x08,0x44,0x08,0x44,0x08,0x24,0x08,0x14,
/*-- 物 -- ** 宋体, 12 **/
0x01,0x08,0x01,0x08,0x01,0x0A,0x3F,0x8A,0x2A,0xBE,0x2A,0x4A,0x29,0x29,0x29,0x28,
0x24,0x98,0x24,0x4C,0x22,0x2B,0x21,0x08,0x20,0x88,0x20,0x48,0x14,0x28,0x08,0x00,
/*-- 业 -- ** 宋体, 12 **/
0x02,0x20,0x02,0x20,0x02,0x20,0x22,0x20,0x62,0x22,0x32,0x24,0x12,0x24,0x0A,0x28,
0x0A,0x38,0x06,0x28,0x02,0x20,0x02,0x20,0x22,0x20,0x7F,0xFF,0x00,0x00,0x00,0x00,
/*-- 质 -- ** 宋体, 12 **/
0x3E,0x00,0x01,0xFC,0x01,0x04,0x1F,0xF4,0x01,0x04,0x00,0x84,0x0F,0xE4,0x08,0x24,
0x09,0x24,0x09,0x24,0x09,0x24,0x09,0x24,0x02,0x84,0x0C,0x42,0x18,0x22,0x08,0x11,
/*-- 量 -- ** 宋体, 12 **/
0x0F,0xF8,0x08,0x08,0x0F,0xF8,0x08,0x08,0x0F,0xF8,0x00,0x00,0x7F,0xFF,0x08,0x88,
0x0F,0xF8,0x08,0x88,0x0F,0xF8,0x00,0x80,0x1F,0xF8,0x00,0x80,0x7F,0xFF,0x00,0x00,
/*-- 方 -- ** 宋体, 12 **/
0x00,0x40,0x00,0x80,0x01,0x00,0x7F,0xFF,0x00,0x40,0x00,0x40,0x0F,0xC0,0x08,0x40,
0x08,0x20,0x08,0x20,0x08,0x10,0x08,0x10,0x08,0x08,0x09,0x04,0x06,0x03,0x00,0x00,
/*-- 针 -- ** 宋体, 12 **/
0x04,0x08,0x04,0x08,0x04,0x04,0x04,0x7C,0x04,0x02,0x04,0x3E,0x7F,0x89,0x04,0x08,
0x04,0x7F,0x04,0x08,0x04,0x08,0x04,0x48,0x04,0x28,0x04,0x18,0x04,0x08,0x04,0x00,
/*-- ： -- ** 宋体, 12 **/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x0C,0x00,0x0C,0x00,0x00,0x00,0x0C,0x00,0x0C,0x00,0x00,0x00,0x00,
//*规范服务**/
/*-- 规 -- ** 宋体, 12 **/
0x00,0x08,0x3F,0x88,0x20,0x88,0x24,0xBE,0x24,0x88,0x24,0x88,0x24,0x88,0x24,0xFF,
0x24,0x88,0x0A,0x14,0x0A,0x24,0x49,0x64,0x49,0x22,0x48,0x82,0x70,0x41,0x00,0x20,
/*-- 范 -- ** 宋体, 12 **/
0x04,0x20,0x04,0x20,0x7F,0xFF,0x06,0x20,0x00,0x02,0x1F,0x8C,0x10,0x89,0x10,0x86,
0x10,0x92,0x1C,0x90,0x08,0x88,0x00,0x87,0x20,0x84,0x20,0x84,0x3F,0x04,0x00,0x04,
/*-- 服 -- ** 宋体, 12 **/
0x3F,0x3C,0x21,0x24,0x21,0x24,0x29,0x24,0x11,0x3C,0x01,0x24,0x3F,0x24,0x23,0x3C,
0x23,0x24,0x15,0x24,0x15,0x24,0x09,0x24,0x15,0x22,0x73,0x2A,0x21,0x11,0x00,0x00,
/*-- 务 -- ** 宋体, 12 **/
0x00,0x20,0x0F,0xE0,0x08,0x30,0x04,0x28,0x02,0x46,0x01,0x81,0x06,0x60,0x78,0x98,
0x20,0x86,0x0F,0xF8,0x08,0x40,0x08,0x40,0x08,0x20,0x08,0x10,0x0A,0x0C,0x04,0x03,
/*-- 空格 -- ** 宋体, 12 **/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//*有呼必应**/
/*-- 有 -- ** 宋体, 12 **/
0x00,0x80,0x00,0x80,0x7F,0xFE,0x00,0x40,0x00,0x20,0x0F,0xF0,0x08,0x18,0x08,0x14,
0x0F,0xF2,0x08,0x11,0x08,0x10,0x0F,0xF0,0x08,0x10,0x09,0x10,0x0E,0x10,0x04,0x10,
/*-- 呼 -- ** 宋体, 12 **/
0x00,0x00,0x3C,0x00,0x03,0xFF,0x12,0x11,0x32,0x51,0x12,0x91,0x0A,0x91,0x02,0x11,
0x7F,0xF1,0x02,0x1F,0x02,0x11,0x02,0x00,0x02,0x00,0x02,0x00,0x02,0x80,0x01,0x00,
/*-- 必 -- ** 宋体, 12 **/
0x00,0x20,0x08,0x40,0x19,0x80,0x08,0x80,0x04,0x30,0x04,0x10,0x0A,0x14,0x12,0x14,
0x21,0x14,0x60,0x92,0x20,0x52,0x10,0x30,0x10,0x18,0x1F,0xF4,0x00,0x03,0x00,0x00,
/*-- 应 -- ** 宋体, 12 **/
0x00,0x80,0x01,0x00,0x3F,0xFC,0x00,0x04,0x00,0x44,0x10,0x84,0x31,0x0C,0x13,0x14,
0x09,0x24,0x09,0x24,0x04,0x64,0x04,0x22,0x02,0x02,0x7F,0xFA,0x00,0x01,0x00,0x00,
/*-- 空格 -- ** 宋体, 12 **/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//*风格亲和**/
/*-- 风 -- ** 宋体, 12 **/
0x00,0x00,0x1F,0xF8,0x10,0x08,0x12,0x08,0x16,0x28,0x12,0x48,0x12,0x88,0x11,0x08,
0x11,0x08,0x12,0x88,0x56,0x48,0x54,0x24,0x64,0x14,0x60,0x02,0x40,0x01,0x00,0x00,
/*-- 格 -- ** 宋体, 12 **/
0x01,0x08,0x01,0x08,0x1F,0x88,0x10,0xBF,0x09,0x48,0x0A,0x2C,0x04,0x1C,0x1B,0x2A,
0x60,0xEA,0x1F,0x89,0x10,0x88,0x10,0x88,0x10,0x88,0x10,0x88,0x1F,0x88,0x10,0x88,
/*-- 亲 -- ** 宋体, 12 **/
0x00,0x40,0x00,0x80,0x3F,0xFC,0x04,0x10,0x0C,0x20,0x02,0x20,0x7F,0xFE,0x00,0x80,
0x00,0x80,0x3F,0xFC,0x00,0x80,0x04,0x88,0x18,0x98,0x30,0x84,0x10,0xA2,0x00,0x40,
/*-- 和 -- ** 宋体, 12 **/
0x00,0x00,0x00,0xE0,0x00,0x1E,0x3E,0x10,0x22,0x10,0x22,0xFE,0x22,0x10,0x22,0x18,
0x22,0x38,0x22,0x54,0x22,0xD4,0x22,0x52,0x3E,0x11,0x22,0x10,0x00,0x10,0x00,0x10,
/*-- 空格 -- ** 宋体, 12 **/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
//**讲究诚信**/
/*-- 讲 -- ** 宋体, 12 **/
0x08,0x82,0x08,0x84,0x08,0x8C,0x08,0x84,0x3F,0xE0,0x08,0x80,0x08,0x87,0x08,0x84,
0x7F,0xF4,0x08,0x84,0x08,0x84,0x08,0x84,0x08,0x54,0x08,0x4C,0x08,0x24,0x08,0x10,
/*-- 究 -- ** 宋体, 12 **/
0x00,0x40,0x00,0x80,0x7F,0xFE,0x20,0x02,0x04,0x48,0x08,0x44,0x10,0x42,0x03,0xF8,
0x02,0x40,0x02,0x40,0x02,0x20,0x42,0x20,0x42,0x10,0x42,0x08,0x7C,0x04,0x00,0x00,
/*-- 诚 -- ** 宋体, 12 **/
0x04,0x02,0x14,0x0C,0x24,0x04,0x7F,0xF0,0x04,0x20,0x04,0x27,0x24,0x24,0x65,0xE4,
0x29,0x24,0x29,0x24,0x19,0x24,0x49,0x34,0x55,0x2C,0x63,0x54,0x40,0x90,0x00,0x08,
/*-- 信 -- ** 宋体, 12 **/
0x01,0x10,0x06,0x30,0x02,0x18,0x7F,0xE8,0x00,0x0C,0x1F,0xCC,0x00,0x0A,0x1F,0xC9,
0x00,0x08,0x1F,0xC8,0x10,0x48,0x10,0x48,0x10,0x48,0x1F,0xC8,0x10,0x48,0x00,0x00,
//============================================================================
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
}; |
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