2*16*16汉字点阵滚动显示单片机源码及仿真电路图等资料

ID:275479 · 发表于 2018-2-3 07:53

源码和电路图都在压缩包中，滚动显示最关键的就在于不同8*8点阵块中如何衔接与字模数据如何传入到595芯片当中。

一、点阵测试说明
一、单组点阵原理图

电路采用H1～H16用2个138组成4译16电路驱动，L1～L16用2个74HC595的串并转换驱动

ABCDG 为16行译码控制信号。
ABCD 为H0～H16的4-16（两个138组成）的译码输入信号。G为两个138译码控制脚，低电平有效。
CLK 为列信号控制的时钟信号
DATA 为串行数据信号
LATCH 为信号锁定，上升沿时移位寄存器的数据进入数据存储寄存器，下降沿时存储寄存器数据不变。(通常将LATCH置为低电平，)当移位结束后，在LATCH端产生一个正脉冲（5V时，大于几十纳秒就行了。通常都选微秒级），更新显示数据
DATAOUT 为级联时数据串出信号。
IN针定义（从上到下）依次为LATCH、CLK、DATA、G、A、B、C、D
OUT针定义（从上到下）依次为LATCH、CLK、DATAOUT、G、A、B、C、D
级联使用时OUT针和IN针用短路片连接。

二、实验方式：
可单个点阵显示，也通过短路片连接可接联控制。

三、实验接线：
P1.0接D
P1.1接C
P1.2接B
P1.3接A
P1.4接G
P1.5接DATA
P1.6接CLK
P1.7接LATCH

四、实验程序
程序1 LED3J.C 三字静态显示
程序2 LED3D.C 二屏（左边二屏）六字左移显示。（如三屏接联，最右屏同最左屏的字，且字向下偏移一个位）
调试时，按调试按钮传送结束后，在反汇编窗口点击0000起始地址，让程序从0000开始运行。或直接在键盘上运行起始地址为0000。

字模设置选项

仿真图：

单片机源程序如下:

#include "main.h"
#include <intrins.h>
//char code STT516[3] _at_ 0x003b;
#define Display_Num_Word 2 //液晶能显示的汉字个数
unsigned char Display_Buffer[4];
unsigned char Display_Swap_Buffer[Display_Num_Word][32]={0}; //显示缓冲区
bit Shift_Bit = 0;
bit Flag_Shift = 0;
#define Shift_Speed 5 //移动速度
unsigned char Timer0_Count = 0;
unsigned char temp = 0x80;
unsigned char Shift_Count = 0;
unsigned char Display_Word_Count = 0;
#define Num_Of_Word 6
unsigned char code Word[Num_Of_Word][32] =
{
0xFE,0xFE,0xFE,0xFE,0xFE,0xE0,0xEF,0xEF,0xEF,0xE0,0xEF,0xFE,0xD7,0xDB,0xBB,0xFF,
0xFF,0xFF,0x07,0xFF,0xEF,0x07,0xEF,0xEF,0xEF,0x0F,0xEF,0xEF,0x77,0xBB,0xBB,0xFF,/*"点",0*/
0xFF,0x07,0x77,0x68,0x5E,0x6E,0x75,0x70,0x77,0x57,0x68,0x7F,0x7F,0x7F,0x7F,0x7F,
0x7F,0x7F,0x7F,0x03,0xFF,0xBF,0xBF,0x03,0xBF,0xBF,0x01,0xBF,0xBF,0xBF,0xBF,0xBF,/*"阵",1*/
0xBF,0xD8,0xDB,0x7B,0xBA,0xAA,0xEA,0xDA,0xDA,0xDA,0x3A,0xBE,0xBD,0xBD,0xBB,0xB7,
0xFD,0x3D,0xBD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xAD,0xFD,0x7D,0xBD,0xB5,0xFB,/*"测",2*/
0xFF,0xBF,0xDF,0xCF,0xD8,0xFF,0x1F,0xD8,0xDE,0xDE,0xDE,0xDE,0xD6,0xC9,0xDF,0xFF,
0xDF,0xD7,0xDB,0xDB,0x01,0xDF,0xDF,0x1F,0xDF,0xEF,0xEF,0xF5,0x35,0xF9,0xFD,0xFF,/*"试",3*/
0xBF,0xDE,0xCE,0xDE,0xFE,0xFE,0x1D,0xDA,0xDE,0xDE,0xDF,0xDF,0xD7,0xCF,0xDC,0xF3,
0xFF,0x0F,0xEF,0xEF,0xEF,0xEF,0xF1,0x07,0xF7,0xF7,0x6F,0x6F,0x9F,0x6F,0xF1,0xFB,/*"设",4*/
0xBF,0xDF,0xCF,0xDF,0xFF,0x0C,0xEF,0xEF,0xEF,0xEF,0xEF,0xED,0xEB,0xE7,0xEF,0xFF,
0xDF,0xDF,0xDF,0xDF,0xDF,0x01,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,0xDF,/*"计",5*/
};
//************************************************************
//主函数
//************************************************************
void main()
{
Init_Timer0();
Clear_Display();
while(1)
{
Display(Display_Swap_Buffer);
if(Flag_Shift == 1)
{
Flag_Shift = 0;
Display_Word_Count = Shift_Count/16; //计算当前显示第几个字
Calc_Shift();
Shift_Count++;
if(Shift_Count == (Num_Of_Word+Display_Num_Word)*16 ) //移动次数
{
Shift_Count = 0;
}
}
}
}
//****************************************************
//初始化定时器0
//****************************************************
void Init_Timer0()
{
TMOD = 0X01; //T0, 工作模式1
TH0 = (65536 - 50000)/256;
TL0 = (65536 - 50000)%256;
TR0 = 1; //开启定时器
ET0 = 1; //开启定时器中断
EA = 1; //开启总中断
}
//****************************************************
//中断函数
//****************************************************
void Timer0() interrupt 1
{
TH0 = (65536 - 50000)/256;
TL0 = (65536 - 50000)%256;
TF0 = 0;
Timer0_Count++;
if(Timer0_Count >= Shift_Speed)
{
Timer0_Count = 0;
Flag_Shift = 1;
}
}
//************************************************************
//计算移动数据，存在在缓冲器
//************************************************************
void Calc_Shift()
{
unsigned char i;
for(i = 0;i < 16;i++)
{
if((Display_Swap_Buffer[0][16+i]&0x80) == 0) //每行第一个字节移位
{
Display_Swap_Buffer[0][i] = (Display_Swap_Buffer[0][i] << 1)&0xfe; //最低位清零
}
else
{
Display_Swap_Buffer[0][i] = (Display_Swap_Buffer[0][i] << 1)|0x01; //最低位置一
}
if((Display_Swap_Buffer[1][i]&0x80) == 0) //每行第二个字节移位
{
Display_Swap_Buffer[0][16+i] = (Display_Swap_Buffer[0][16+i] << 1)&0xfe; //最低位清零
}
else
{
Display_Swap_Buffer[0][16+i] = (Display_Swap_Buffer[0][16+i] << 1)|0x01; //最低位置一
}
if((Display_Swap_Buffer[1][16+i]&0x80) == 0) //每行第三个字节移位
{
Display_Swap_Buffer[1][i] = (Display_Swap_Buffer[1][i] << 1)&0xfe; //最低位清零
}
else
{
Display_Swap_Buffer[1][i] = (Display_Swap_Buffer[1][i] << 1)|0x01; //最低位置一
}
if(Shift_Count%16 < 8 && Display_Word_Count < Num_Of_Word)
{
Shift_Bit = Word[Display_Word_Count][i]&temp;
}
else if(Shift_Count%16 < 16 && Display_Word_Count < Num_Of_Word)
{
Shift_Bit = Word[Display_Word_Count][16+i]&temp;
}
else
{
Shift_Bit = 1; //把字移出缓冲区
}
if( Shift_Bit == 0) //后8位移位
{
Display_Swap_Buffer[1][16+i] = (Display_Swap_Buffer[1][16+i] << 1)&0xfe; //最低位清零
}
else
{
Shift_Bit = 1;
Display_Swap_Buffer[1][16+i] = (Display_Swap_Buffer[1][16+i] << 1)|0x01; //最低位置一
}
}
temp = (temp>>1)&0x7f;
if(temp == 0x00)
{
temp = 0x80;
}
}
//************************************************************
//清空缓冲区
//************************************************************
void Clear_Display()
{
unsigned char i,j;
for(j = 0 ; j < Display_Num_Word; j++)
{
for(i = 0 ; i < 32 ;i++)
{
Display_Swap_Buffer[j][i] = 0xff; //0=显示 1=不显示
}
}
}
//************************************************************
//num为字数 dat[][32]为字模的名称
//*************************************************************
void Display(unsigned char dat[][32])
{
unsigned char i,j;
for( i = 0 ; i < 16 ; i++ )
{
LEDARRAY_G = 1; //更新数据时候关闭显示。等更新完数据，打开138显示行。防止重影。
Display_Buffer[0] = dat[0][i];
Display_Buffer[1] = dat[0][i+16];
Display_Buffer[2] = dat[1][i];
Display_Buffer[3] = dat[1][i+16];
Send(Display_Buffer[3]);
Send(Display_Buffer[2]);
Send(Display_Buffer[1]);
Send(Display_Buffer[0]);
LEDARRAY_LAT = 1; //锁存数据
_nop_();
LEDARRAY_LAT = 0;
_nop_();
Scan_Line(i); //选择第i行
LEDARRAY_G = 0;
for( j = 0 ; j < 30 ; j++); //延时一段时间，让LED亮起来。
}
}
//****************************************************
//扫描某一行
//****************************************************
void Scan_Line( unsigned char m)
{
switch(m)
{
case 0:
LEDARRAY_D = 0;LEDARRAY_C = 0;LEDARRAY_B = 0;LEDARRAY_A = 0;
break;
case 1:
LEDARRAY_D = 0;LEDARRAY_C = 0;LEDARRAY_B = 0;LEDARRAY_A = 1;
break;
case 2:
LEDARRAY_D = 0;LEDARRAY_C = 0;LEDARRAY_B = 1;LEDARRAY_A = 0;
break;
case 3:
LEDARRAY_D = 0;LEDARRAY_C = 0;LEDARRAY_B = 1;LEDARRAY_A = 1;
break;
case 4:
LEDARRAY_D = 0;LEDARRAY_C = 1;LEDARRAY_B = 0;LEDARRAY_A = 0;
break;
case 5:
LEDARRAY_D = 0;LEDARRAY_C = 1;LEDARRAY_B = 0;LEDARRAY_A = 1;
break;
case 6:
LEDARRAY_D = 0;LEDARRAY_C = 1;LEDARRAY_B = 1;LEDARRAY_A = 0;
break;
case 7:
LEDARRAY_D = 0;LEDARRAY_C = 1;LEDARRAY_B = 1;LEDARRAY_A = 1;
break;
case 8:
LEDARRAY_D = 1;LEDARRAY_C = 0;LEDARRAY_B = 0;LEDARRAY_A = 0;
break;
case 9:
LEDARRAY_D = 1;LEDARRAY_C = 0;LEDARRAY_B = 0;LEDARRAY_A = 1;
break;
case 10:
LEDARRAY_D = 1;LEDARRAY_C = 0;LEDARRAY_B = 1;LEDARRAY_A = 0;
break;
case 11:
LEDARRAY_D = 1;LEDARRAY_C = 0;LEDARRAY_B = 1;LEDARRAY_A = 1;
break;
case 12:
LEDARRAY_D = 1;LEDARRAY_C = 1;LEDARRAY_B = 0;LEDARRAY_A = 0;
break;
case 13:
LEDARRAY_D = 1;LEDARRAY_C = 1;LEDARRAY_B = 0;LEDARRAY_A = 1;
break;
case 14:
LEDARRAY_D = 1;LEDARRAY_C = 1;LEDARRAY_B = 1;LEDARRAY_A = 0;
break;
case 15:
LEDARRAY_D = 1;LEDARRAY_C = 1;LEDARRAY_B = 1;LEDARRAY_A = 1;
break;
default : break;
}
}
//****************************************************
……………………
…………限于本文篇幅余下代码请从51黑下载附件…………