TM1638程序(AVR

TM1638键显测试程序（AVRGCC） 
  
//tm1638.h头文件

#ifndef _TM1638_H
#define _TM1638_H

#include <avr/io.h>
#include <util/delay.h>
#include <avr/pgmspace.h>
typedef struct
{
unsigned char bit0:1;
unsigned char bit1:1;
unsigned char bit2:1;
unsigned char bit3:1;
unsigned char bit4:1;
unsigned char bit5:1;
unsigned char bit6:1;
unsigned char bit7:1;
}bit_feild;

#define GET_BITSFIELD(addr)  (*((volatile bit_feild *)(addr)))
#define GET_BITFIELD(addr,n)  GET_BITSFIELD(addr).bit##n

#define DATA_COMMAND 0X40
#define DISP_COMMAND 0x80
#define ADDR_COMMAND 0XC0

/* #define SET_BIT(PORT,BIT) PORT|=(1<<BIT)

#define CLR_BIT(PORT,BIT) PORT&=~(1<<BIT)
#define BIT_IN(DDR,BIT)  DDR&=~(1<<BIT)
#define BIT_OUT(DDR,BIT) DDR|=(1<<BIT)
#define READ_BIT(PIN,BIT) (PIN&(1<<BIT)) */
//TM1638与MCU的连接关系
#define DIO  PD7
#define CLK  PD6
#define STB  PD4
#define  TM1638_DP   &PORTD    //数据端口，写
#define  TM1638_DDR  &DDRD   //方向控制
#define  TM1638_PIN  &PIND   //引脚端口，读


#define DIO_high  GET_BITFIELD(TM1638_DP,DIO)=1
#define DIO_low   GET_BITFIELD(TM1638_DP,DIO)=0
#define CLK_high  GET_BITFIELD(TM1638_DP,CLK)=1
#define CLK_low   GET_BITFIELD(TM1638_DP,CLK)=0
#define STB_high  GET_BITFIELD(TM1638_DP,STB)=1
#define STB_low   GET_BITFIELD(TM1638_DP,STB)=0

#define DIO_IN  GET_BITFIELD(TM1638_DDR,DIO)=0 //输入状态
#define DIO_OUT  GET_BITFIELD(TM1638_DDR,DIO)=1 //输出状态
#define DIO_READ GET_BITFIELD(TM1638_PIN,DIO) //读引脚电平

/*
#define DIO_IN DDRD&=~(1<<PD7)  //输入状态
#define DIO_OUT DDRD|=(1<<PD7)  //输出状态
#define DIO_READ PIND&(1<<PD7) //读引脚电平

//引脚定义