📄 led条屏控制器.c
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#include <reg52.h>
#include <intrins.h>
#include <absacc.h>
#include "I2C.h"
#define uchar unsigned char
#define uint unsigned int
sbit Rclk = P1^4; //595储存寄存器时钟输入
sbit A138 = P1^3; //74ls138数据输入A端
sbit B138 = P1^2; //74ls138数据输入B端
sbit C138 = P1^1; //74ls138数据输入C端
sbit E138 = P1^0; //74ls138使能端（低电平1，3有效高电平2，4有效）
sbit XY = P1^7; //控制整个屏幕的显示（0为显示，1为熄灭）
sbit CE_RAM = P3^5; //低电平汉字库有效，高电平RAM6264有效
sbit A17 = P1^6; //汉字库高位地址
sbit A16 = P1^5; //汉字库高位地址
sbit Sdata = P3^0; //595数据
sbit Sclk = P3^1; //595时钟端口
bit LeftMoveSign=0; //左移动标志
bit UpMoveSign=0; //上移动标志位
bit DownMoveSign=0; //下移动标志位
bit StopFlag=0; //显示停顿标志位
unsigned int FirstAddress=0; //移动数据的首地址
unsigned int RamAddress=0x6000; //RAM首地址
unsigned char Col=0; //移动行数
unsigned int Order=0; //汉字顺序数
unsigned char PingCan=0;//一屏显示的汉字数目
unsigned char Speed=0; //移动速度控制
unsigned char ChangeNum=0; //改变显示方式的次数
unsigned char ChangeTab=0; //移动方式
unsigned char PingData=0;//2*PingCan
unsigned int AllMoveWord=0; //记录总显示字符的长度
unsigned int MoveWord=0;//记录每一条显示信息的长度
unsigned int StopTime=0; //停顿时间标志位
unsigned char code RowTab[8]={0x00,0x08,0x04,0x0c,0x02,0x0a,0x06,0x0e}; //138行选信号
unsigned char data ReadEepRomBuff[5]={0x00,0x00,0x00,0x00,0x00}; //接收数据缓冲数组
unsigned int data HangData[16];
/*//////////////////函数声明//////////////////////////*/
void Delay(uint i); //延时程序
void GetRowTabData(void); //行数据选择程序
void getdata(void); //从24C08中取基内码到RAM6264中
unsigned char DataTreatWith(unsigned char src); //对数据倒序和取反
void GetData_To_Ram(uint address); //汉字库点阵数据存到RAM中
unsigned int GetAddress(uint Num); //根据机内码算汉字库地址
void Data_To_Ram(void); //把数据按顺序存放到RAM中
void MoveLeftDisplay(void); //左移显示
void MoveUpDisplay(void); //上移显示
void GetHangDate(void);
/*//////////////////////////////////////////////////////*/
void Delay(uint i) //延时程序
{
while(i--);
}
/*//////////////////////////////////////////////////////*/
void GetHangDate(void)
{
uchar i=0;
for(i=0;i<16;i++)
{
HangData[i]=i*AllMoveWord;
}
}
/*//////////////////////////////////////////////////////*/
void getdata(void) //从24C08中取基内码到RAM6264中
{
unsigned int i=0;
for(i=0;i<AllMoveWord;i=i+2)
{
if(i<=255)
{
ReadFromRom(0xa0,ReadEepRomBuff,(0x00+i),2);
}
else if(255<i<=512)
{
ReadFromRom(0xa2,ReadEepRomBuff,(0x00+i-256),2);
}
else
{
ReadFromRom(0xa4,ReadEepRomBuff,(0x00+i-512),2);
}
CE_RAM=1;
XBYTE[0x7e01+i]=ReadEepRomBuff[0];
XBYTE[0x7e01+i+1]=ReadEepRomBuff[1];
WDTRST=0x1e;
WDTRST=0xe1;
CE_RAM=0;
}
}
/*//////////////////////////////////////////////////////*/
unsigned char DataTreatWith(unsigned char src) //将27C020发来的数据取反和倒序
{
unsigned char tmp;
tmp=(src&0x33)<<2;
src=(src&0xcc)>>2;
tmp=src|tmp;
src=(tmp&0xaa)>>1;
tmp=(tmp&0x55)<<1;
src=tmp|src;
src=(src>>4)|(src<<4);
src=~src;
return src;
}
/*//////////////////////////////////////////////////////*/
void GetData_To_Ram(uint address) //从字库中提取数据并按照行的顺序存放
{
uchar i=0;
uchar temp=0,TreatWith=0;
uchar xdata *data p;
p=&XBYTE[address];
P0=0xff;
P2=0xff;
RamAddress=0x6000; //RAM存数据的地址
for(i=0;i<16;i++)
{
CE_RAM=0;
temp= *p;
p++;
TreatWith=DataTreatWith(temp);
CE_RAM=1;
XBYTE[0x6000+Order+i*AllMoveWord]=TreatWith;
CE_RAM=0;
temp= *p;
p++;
TreatWith=DataTreatWith(temp);
CE_RAM=1;
XBYTE[0x6000+Order+1+i*AllMoveWord]=TreatWith;
CE_RAM=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
/*//////////////////////////////////////////////////////*/
unsigned int GetAddress(uint Num) //区位码转换成地址
{
unsigned int wm;
unsigned int rw;
unsigned int gw;
unsigned long int qm;
unsigned long int offset=0;
CE_RAM=1;
qm=(XBYTE[0x7e01+Num]-0xa0-1)*(unsigned long)3008; //必须加入（unsigned long）不然qm和wm的结果存放在一个int单元内，数据回溢出
wm=(XBYTE[0x7e01+Num+1]-0xa0-1)*32;
offset=qm+wm;
gw=(unsigned int)(offset/65536);
if(gw==0x00)
{A17=0;A16=0;}
if(gw==0x01)
{A17=0;A16=1;}
if(gw==0x02)
{A17=1;A16=0;}
if(gw==0x03)
{A17=1;A16=1;}
rw=(unsigned int)(offset&0x0000ffff);
WDTRST=0x1e;
WDTRST=0xe1;
return rw;
}
/*//////////////////////////////////////////////////////*/
void Data_To_Ram(void) //把数据存到RAM中
{
uchar i=0;
uchar code *P=0x1430;
Order=0;
while(Order<AllMoveWord)
{
CE_RAM=1;
if(XBYTE[0x7e01+Order]>0xa0 )
{
GetData_To_Ram(GetAddress(Order));
Order=Order+2;
}
else
{
CE_RAM=1;
P=(unsigned int)(XBYTE[0x7e01+Order]*16)+0x1430;
for(i=0;i<16;i++)
{
CE_RAM=1;
XBYTE[0x6000+Order+i*AllMoveWord]=DataTreatWith(*P);
P++;
WDTRST=0x1e;
WDTRST=0xe1;
}
Order++;
}
}
}
/*/////////////////////////////显示程序//////////////////////////////////*/
void MoveLeftDisplay(void) //汉字左移显示程序
{
unsigned char j=0,k=0,Value=0,temp=0;
unsigned int x=0;
unsigned char hang=0;
bit xflag=0;
FirstAddress=0;
while(FirstAddress<MoveWord+PingData)
{
for(Col=0;Col<16;Col++)
{
for(hang=0;hang<16;hang++)
{
for(j=0;j<PingData;j++)
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+HangData[hang]+FirstAddress];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
if(StopFlag==0)
{
Value=XBYTE[RamAddress+PingData+HangData[hang]+FirstAddress];
temp=Value;
if(Col<8)
{k=Col;}
else
{k=Col-8;}
while(k>0)
{
Sclk=0;
Sdata=(bit)(temp&0x01);
Sclk=1;
Sdata=1;
temp=temp>>1;
k--;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
XY=1;
if(hang<8)
{
P1=(P1&0xf1)|RowTab[hang];
E138=0;
}
else
{
P1=(P1&0xf1)|RowTab[hang-8];
E138=1;
}
Rclk=0;
Rclk=1;
Rclk=0;
XY=0;
WDTRST=0x1e;
WDTRST=0xe1;
if(StopFlag==1)
{
if(hang==15)
{
if(xflag==0)
{
x++;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
if(x==StopTime*60)
{
xflag=1;
if(Col==0)
{
StopFlag=0;
x=0;
xflag=0;
}
}
}
Delay(Speed*20);
}
if(StopFlag==0)
{
if(Col==7 || Col==15)
{
FirstAddress=FirstAddress+1;
if((FirstAddress)%PingData==0)
{
StopFlag=1;
x=0;
}
WDTRST=0x1e;
WDTRST=0xe1;
}
}
}
}
XY=1;
}
/*//////////////////////////////////////////////////////*/
void MoveUpDisplay(void) //汉字上移显示程序
{
unsigned char j=0,k=0,vaule=0;
unsigned int hang=0,x=0;
bit xflag=0;
FirstAddress=0;
while(FirstAddress<MoveWord+PingData)
{ for(Col=0;Col<16;Col++)
{
for(hang=0;hang<16;hang++)
{
for(j=0;j<PingData;j++)
{
if(StopFlag==0)
{
if(hang<=15-Col)
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+AllMoveWord*(hang+Col)+FirstAddress];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
else
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+AllMoveWord*(hang+Col-16)+FirstAddress+PingData];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
if(StopFlag==1)
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+HangData[hang]+FirstAddress];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
XY=1;
WDTRST=0x1e;
WDTRST=0xe1;
if(hang<8)
{
P1=(P1&0xf1)|RowTab[hang];
E138=0;
}
else
{
P1=(P1&0xf1)|RowTab[hang-8];
E138=1;
}
Rclk=0;
Rclk=1;
Rclk=0;
XY=0;
//Delay(Speed);
if(StopFlag==1)
{
if(hang==15)
{
if(xflag==0)
{
x++;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
if(x==StopTime*28)
{
xflag=1;
if(Col==0)
{
StopFlag=0;
x=0;
xflag=0;
}
}
}
}
WDTRST=0x1e;
WDTRST=0xe1;
}
if(StopFlag==0)
{
FirstAddress=FirstAddress+PingData;
}
StopFlag=1;
}
XY=1;
}
/*////////////////////////////////////////////////////////////////////////////////////*/
void MoveDownDisplay(void) //汉字下移显示程序
{
unsigned char j=0,k=0,vaule=0;
unsigned int hang=0,x=0;
bit xflag=0;
FirstAddress=0;
while(FirstAddress<MoveWord+PingData)
{ for(Col=0;Col<16;Col++)
{
for(hang=0;hang<16;hang++)
{
for(j=0;j<PingData;j++)
{
if(StopFlag==0)
{
if(hang<Col)
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+AllMoveWord*(16+hang-Col)+FirstAddress+PingData];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
else
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+AllMoveWord*(hang-Col)+FirstAddress];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
if(StopFlag==1)
{
CE_RAM=1;
SBUF=XBYTE[RamAddress+j+HangData[hang]+FirstAddress];
while(TI==0);
TI=0;
WDTRST=0x1e;
WDTRST=0xe1;
}
}
XY=1;
WDTRST=0x1e;
WDTRST=0xe1;
if(hang<8)
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