点阵屏扫描问题请教

shqi2003

点阵屏扫描问题请教
一般经常用的点阵屏，在16X64的屏上，行扫描通过2片138完成16行的，由8片595以16X8的方式，一根数据线完成64列扫描。现在有一款点阵屏，是有2组8片595以8X8的方式方式完成64列扫描。这样就有2根数据线输入，如果用下面的程序显示出来的就是上面8X8的内容和下面8X8的内容是一样的，下面的程序是不是可以改成在这块屏上正常显示呢？？谢谢先！！
显示如图，文字应该是【同济物业】


这是部分程序，如果需要全部程序可以提供。
/*******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;
return temp;
}
/****************************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
                         P1_4=1;//消影。
                         P1_7= 1;   // 点亮屏幕                          
                         P1=tab[disrow];                        
                         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+1，4字是for(s=0;s<5;s++) ，8字是for(s=0;s<9;s++)
        {
        BUFF[2*s]=HZ[word+32*s+2*disrow];
        BUFF[2*s+1]=HZ[word+1+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=9+inc;s>=0+inc;s--)//4字是for(s=9+inc;s>=0+inc;s--)，8字是for(s=17+inc;s>=0+inc;s--)
        {
        SBUF=two_onebyte(BUFF,BUFF[s+1]);
        while(!TI);TI=0;
        }
}

yanjian

列扫描好像没问题

感觉是行扫描时序不对,
就是74ls138的数据不对

yanjian

沈老师你最好提供一个完整的程序.
其它人改好了可以直接编译给你hex文件,方便调试

shqi2003

列扫描好像没问题

感觉是行扫描时序不对,
就是74ls138的数据不对
yanjian 发表于 2010-5-11 01:33 https://www.yleee.com.cn/images/common/back.gif

这个屏怎么说明比较清楚有点晕。
实际这个屏是这样
16X64屏应该是上面8个模块+下面8个模块=16X64屏，一般屏上面8个模块和下面8个模块的列是并连的，只要一片595就可以控制了，我这个屏区别在于上面一个8X8模块用一片595，下面8X8模块也用一片595，这样595的数量比一般的屏多一倍，而且上下595的数据线是分开的，所以要显示16X16的文字必须上下595的数据线都要输入信号。
现在这个程序因为只有一个数据线输入，所以只显示一半，我把二个数据线连接在一起，所以显示上下一样了。
完整程序

#include <AT89x52.H>
//#include <regx52.h>
#define uchar unsigned char
#define uint unsigned int
#define SPEED 1                       //定义速度12M
#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[]=
{0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f};/*16行段码*/
//{0x0f,0x09,0x05,0x02,0x08,0x04,0x00,0x0c,0x03,0x0b,0x07,0x0d,0x01,0x0e,0x0a,0x06};
uchar code HZ[];
uchar BUFF[10];//4字是10，8字是18
void loadoneline(void);
void sendoneline(void);
/*******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;
return temp;
}
/****************************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
                         P1_4=1;//消影。
                         P1_7= 1;   // 点亮屏幕                          
                         P1=tab[disrow];                        
    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+1，4字是for(s=0;s<5;s++) ，8字是for(s=0;s<9;s++)
{
BUFF[2*s]=HZ[word+32*s+2*disrow];
BUFF[2*s+1]=HZ[word+1+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=9+inc;s>=0+inc;s--)//4字是for(s=9+inc;s>=0+inc;s--)，8字是for(s=17+inc;s>=0+inc;s--)
{
SBUF=two_onebyte(BUFF,BUFF[s+1]);
while(!TI);TI=0;
}
}
/***********************汉字点阵码阴逐行顺上下*************************/
uchar code HZ[]=
{
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,
//=============================================================================
0x40,0x08,0x40,0x14,0x40,0x04,0x48,0x24,0x4F,0xE4,0x48,0x24,0x48,0x24,0x48,0x24,
0x4F,0xE4,0x40,0x04,0x40,0x04,0x5F,0xF4,0x40,0x04,0x40,0x04,0x7F,0xFC,0x00,0x00,/*"同",0*/
0x28,0x10,0x24,0x10,0x22,0x10,0x22,0x10,0x21,0x10,0xE1,0x10,0x21,0x10,0x11,0x10,
0x16,0x0E,0x51,0xB0,0x48,0x40,0x88,0xA0,0x01,0x10,0x27,0xFE,0x20,0x40,0x40,0x80,/*"济",1*/
0x00,0x10,0x14,0x28,0x12,0x04,0x11,0x04,0x10,0x84,0xD4,0x44,0x32,0x24,0x19,0x24,
0x14,0x94,0x94,0x94,0x52,0x54,0x7D,0x54,0x51,0xFC,0x50,0x80,0x10,0x80,0x10,0x80,/*"物",2*/
0x00,0x00,0x00,0x00,0xFF,0xFE,0x04,0x44,0x04,0x40,0x04,0x40,0x14,0x60,0x1C,0x50,
0x14,0x50,0x24,0x48,0x24,0x4C,0x44,0x46,0x04,0x44,0x04,0x40,0x04,0x40,0x04,0x40,/*"业",3*/
0x88,0x10,0x44,0x18,0x42,0x30,0x21,0x40,0x24,0x90,0x24,0x90,0x24,0x90,0x24,0x90,
0x24,0x10,0x27,0xF0,0x21,0x00,0x20,0x80,0x2F,0xF8,0x20,0x80,0x3F,0x80,0x00,0x7C,/*"质",4*/
0x00,0x00,0xFF,0xFE,0x01,0x00,0x1F,0xF8,0x01,0x00,0x1F,0xF0,0x11,0x10,0x1F,0xF0,
0x11,0x10,0xFF,0xFE,0x00,0x00,0x1F,0xF0,0x10,0x10,0x1F,0xF0,0x10,0x10,0x1F,0xF0,/*"量",5*/
0x00,0x00,0xC0,0x60,0x20,0x90,0x10,0x10,0x08,0x10,0x08,0x10,0x04,0x10,0x04,0x10,
0x02,0x10,0x03,0xF0,0x02,0x00,0x02,0x00,0xFF,0xFE,0x00,0x80,0x01,0x00,0x02,0x00,/*"方",6*/
0x00,0x20,0x10,0x20,0x18,0x20,0x14,0x20,0x12,0x20,0x10,0x20,0x10,0x20,0xFE,0x20,
0x10,0x20,0x91,0xFE,0x7C,0x20,0x40,0x20,0x3E,0x20,0x20,0x20,0x10,0x20,0x10,0x20,/*"针",7*/
0x00,0x00,0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,0x30,0x00,0x30,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*"：",8*/
0x04,0x00,0x82,0x0E,0x41,0x12,0x44,0x92,0x26,0x92,0x24,0x50,0x28,0x50,0x11,0x24,
0xFF,0x24,0x11,0x24,0x11,0x24,0x11,0x24,0x7D,0x24,0x11,0x04,0x11,0xFC,0x10,0x00,/*"规",9*/
0x20,0x00,0x20,0xFC,0x21,0x04,0x21,0x04,0xE1,0x00,0x11,0x10,0x09,0x38,0x49,0x08,
0x61,0x08,0x91,0x08,0x31,0xF8,0x40,0x00,0x04,0x60,0xFF,0xFE,0x04,0x20,0x04,0x20,/*"范",10*/
0x00,0x00,0x88,0x84,0x54,0xCE,0x44,0xA8,0x24,0x90,0x24,0xA8,0x24,0xA8,0x24,0xC4,
0x3C,0xC4,0x24,0xFC,0x24,0x80,0x3C,0x88,0x24,0x94,0x24,0x84,0x24,0x84,0x3C,0xFC,/*"服",11*/
0xC0,0x20,0x30,0x50,0x08,0x10,0x04,0x10,0x02,0x10,0x02,0x10,0x1F,0xF0,0x61,0x04,
0x19,0x1E,0x06,0x60,0x81,0x80,0x62,0x40,0x14,0x20,0x0C,0x10,0x07,0xF0,0x04,0x00,/*"务",12*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",13*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",14*/
0x08,0x20,0x08,0x70,0x08,0x90,0x08,0x10,0x0F,0xF0,0x08,0x10,0x88,0x10,0x4F,0xF0,
0x28,0x10,0x18,0x10,0x0F,0xF0,0x04,0x00,0x02,0x00,0x7F,0xFE,0x01,0x00,0x01,0x00,/*"有",15*/
0x00,0x80,0x01,0x40,0x00,0x40,0x00,0x40,0x00,0x40,0x88,0x40,0xF8,0x40,0x8F,0xFE,
0x88,0x40,0x89,0x50,0x89,0x48,0x8A,0x4C,0x88,0x48,0xFF,0xC0,0x00,0x3C,0x00,0x00,/*"呼",16*/
0x00,0x00,0xC0,0x00,0x2F,0xF8,0x18,0x08,0x0C,0x08,0x4A,0x04,0x49,0x06,0x28,0x84,
0x28,0x48,0x28,0x50,0x08,0x20,0x0C,0x20,0x01,0x10,0x01,0x98,0x02,0x10,0x04,0x00,/*"必",17*/
0x00,0x00,0x80,0x00,0x5F,0xFE,0x40,0x40,0x44,0x20,0x26,0x20,0x24,0x90,0x24,0x90,
0x28,0xC8,0x30,0x8C,0x21,0x08,0x22,0x00,0x20,0x00,0x3F,0xFC,0x00,0x80,0x01,0x00,/*"应",18*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",19*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",20*/
0x00,0x00,0x80,0x02,0x40,0x06,0x28,0x26,0x24,0x2A,0x12,0x6A,0x11,0x48,0x10,0x88,
0x10,0x88,0x11,0x48,0x12,0x48,0x14,0x68,0x10,0x48,0x10,0x08,0x1F,0xF8,0x00,0x00,/*"风",21*/
0x11,0x08,0x11,0xF8,0x11,0x08,0x11,0x08,0x11,0x08,0x11,0x08,0x91,0xF8,0x57,0x06,
0x54,0xD8,0x38,0x20,0x34,0x50,0x12,0x90,0xFD,0x08,0x11,0xF8,0x10,0x80,0x10,0x80,/*"格",22*/
0x02,0x00,0x45,0x08,0x21,0x0C,0x19,0x18,0x11,0x20,0x01,0x00,0x3F,0xFC,0x01,0x00,
0x01,0x00,0x7F,0xFE,0x04,0x40,0x04,0x30,0x08,0x20,0x3F,0xFC,0x01,0x00,0x02,0x00,/*"亲",23*/
0x08,0x00,0x08,0x00,0x08,0x44,0x88,0x7C,0x4A,0x44,0x2B,0x44,0x2A,0x44,0x1C,0x44,
0x18,0x44,0x08,0x44,0x7F,0x44,0x08,0x44,0x08,0x7C,0x78,0x00,0x07,0x00,0x00,0x00,/*"和",24*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",25*/
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,/*" ",26*/
0x08,0x10,0x24,0x10,0x32,0x10,0x2A,0x10,0x21,0x10,0x21,0x10,0x21,0x10,0x2F,0xFE,
0x21,0x10,0xE1,0x10,0x01,0x10,0x07,0xFC,0x21,0x10,0x31,0x10,0x21,0x10,0x41,0x10,/*"讲",27*/
0x00,0x00,0x20,0x3E,0x10,0x42,0x08,0x42,0x04,0x42,0x04,0x40,0x02,0x40,0x02,0x40,
0x1F,0xC0,0x42,0x08,0x22,0x10,0x12,0x20,0x40,0x04,0x7F,0xFE,0x01,0x00,0x02,0x00,/*"究",28*/
0x10,0x00,0x09,0x02,0x2A,0xC6,0x34,0xAA,0x2C,0x92,0x24,0x98,0x24,0x94,0x24,0x94,
0x27,0xA6,0x24,0x24,0xE4,0x20,0x04,0x20,0x0F,0xFE,0x20,0x24,0x30,0x28,0x40,0x20,/*"诚",29*/
0x00,0x00,0x12,0x08,0x13,0xF8,0x12,0x08,0x12,0x08,0x12,0x08,0x13,0xF8,0x10,0x00,
0x93,0xF8,0x50,0x00,0x33,0xF8,0x30,0x00,0x17,0xFE,0x18,0x40,0x0C,0x60,0x08,0x80,/*"信",30*/

//============================================================================
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,
};

yanjian

应该可以改的.

我的想法:把16行分为两次扫描.
上8行时列数据往上面的595送.
下8行时列数据往下面的595送.

程序改动应该比较大

litchiate

那就是8扫的？应该很亮吧，

litchiate

应该可以改的.

我的想法:把16行分为两次扫描.
上8行时列数据往上面的595送.
下8行时列数据往下面的595 ...
yanjian 发表于 2010-5-11 02:26 https://www.yleee.com.cn/images/common/back.gif

要改几个函数了  回家后去看看。

shqi2003

那就是8扫的？应该很亮吧，
litchiate 发表于 2010-5-11 10:10 https://www.yleee.com.cn/images/common/back.gif

    这个是半室外屏，外观和3MM的模块一模一样，但是里面是用双管LED芯片。列驱动采用MBI5016芯片。

狗狗百里游

由8片595以16X8的方式，一根数据线完成64列扫描。现在有一款点阵屏，是有2组8片595以8X8的方式方式完成64列扫描，

你先在硬件上把595的输出输入连起来，这样扫描的顺序就变化了，怎么变化法，你根据你的硬件自己想，然后两种点阵屏还是十六选一。驱动接口应该一致。

在不改变字库格式的情况下，你想一下，另外做两个个函数：
一个是取【8片595以16X8】那块的，按一定方式读出字库行数据，然后十六选一发送出去。
一个是取【2组8片595以8X8的方式】那块的，按一定方式读出字库行数据，然后十六选一发送出去。
这样你的整个程序结构就没有改变。

点阵屏其实只要自己调试好一套程序，各种特效。我一般都是做好几个特效程序，发送显示三角形啊，逐行扫描，慢慢由上显示到下等等。全亮等等，好判断点阵屏的硬件结构。
以后有什么不同的板子，都很方便修改过去。

litchiate

8_scan.rar (21.06 KB, 下载次数: 433)

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试试这个..  原来是用串口的?  8扫不好用, 给改掉了.  

不知数据顺序对不对.