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#ifndef _TM1638_H
#define _TM1638_H
#include <REGX51.H>
#define DATA_COMMAND 0X40
#define DISP_COMMAND 0x80
#define ADDR_COMMAND 0XC0
//TM1638模塊引腳定義
sbit DIO=P1^0;
sbit CLK=P1^1;
sbit STB=P1^2;
//共陰數(shù)碼管顯示代碼
unsigned char code tab[]={0x3F,0x06,0x5B,0x4F,0x66,0x6D,0x7D,0x07,
0x7F,0x6F,0x77,0x7C,0x39,0x5E,0x79,0x71};
void TM1638_Write(unsigned char DATA) //寫數(shù)據(jù)函數(shù)
{
unsigned char i;
for(i=0;i<8;i++)
{
CLK=0;
if(DATA&0X01)
DIO=1;
else
DIO=0;
DATA>>=1;
CLK=1;
}
}
unsigned char TM1638_Read(void) //讀數(shù)據(jù)函數(shù)
{
unsigned char i;
unsigned char temp=0;
DIO=1; //設(shè)置為輸入
for(i=0;i<8;i++)
{
temp>>=1;
CLK=0;
if(DIO)
temp|=0x80;
CLK=1;
}
return temp;
}
void Write_COM(unsigned char cmd) //發(fā)送命令字
{
STB=0;
TM1638_Write(cmd);
STB=1;
}
unsigned char Read_key(void)
{
unsigned char c[4],i,key_value=0;
STB=0;
TM1638_Write(0x42); //讀鍵掃數(shù)據(jù) 命令
for(i=0;i<4;i++)
c[i]=TM1638_Read();
STB=1; //4個字節(jié)數(shù)據(jù)合成一個字節(jié)
for(i=0;i<4;i++)
key_value|=c[i]<<i;
for(i=0;i<8;i++)
if((0x01<<i)==key_value)
break;
return i;
}
void Write_DATA(unsigned char add,unsigned char DATA) //指定地址寫入數(shù)據(jù)
{
Write_COM(0x44);
STB=0;
TM1638_Write(0xc0|add);
TM1638_Write(DATA);
STB=1;
}
/*
void Write_oneLED(unsigned char num,unsigned char flag) //單獨控制一個LED函數(shù)，num為需要控制的led序號，flag為0時熄滅，不為0時點亮
{
if(flag)
Write_DATA(2*num+1,1);
else
Write_DATA(2*num+1,0);
} */
void Write_allLED(unsigned char LED_flag) //控制全部LED函數(shù)，LED_flag表示各個LED狀態(tài)
{
unsigned char i;
for(i=0;i<8;i++)
{
if(LED_flag&(1<<i))
//Write_DATA(2*i+1,3);
Write_DATA(2*i+1,1);
else
Write_DATA(2*i+1,0);
}
}
//TM1638初始化函數(shù)
void init_TM1638(void)
{
unsigned char i;
Write_COM(0x8b); //亮度 (0x88-0x8f)8級亮度可調(diào)
Write_COM(0x40); //采用地址自動加1
STB=0; //
TM1638_Write(0xc0); //設(shè)置起始地址
for(i=0;i<16;i++) //傳送16個字節(jié)的數(shù)據(jù)
TM1638_Write(0x00);
STB=1;
}
#endif

復(fù)制代碼

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