51单片机代码.zip

#include<reg52.h> #include<INTRINS.H> sbit SCL = P0^6; sbit SDA = P0^7; sbit HC595_SCK = P1^1; sbit HC595_RCK = P1^0; sbit HC595_DATA = P1^4; unsigned char addr = 0x01,read_data; unsigned char second = 59,minute = 59,hour = 11,day = 25,month = 11,week = 3,year = 16; unsigned char time[] = {50,59,23,31,12,3,16};//定义ds1302初始化的时间 code unsigned char Duan_choose[16]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; code unsigned char Wei_choose[8]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; /***************************************************************************** ** 函数名称：Delay_I2C ** 功能描述：延时子程序 ******************************************************************************/ void Delay_i2c(void) { _nop_(); _nop_(); _nop_(); _nop_(); } void Delay(unsigned int i) { unsigned char j; for(;i>0;i--) { for(j = 0;j < 110;j++) {} } } void InitI2C(void) { SDA = 1; SCL = 1; } /*I2C起始信号*/ void i2c_start_fun() { SDA = 1; Delay_i2c(); SCL = 1; Delay_i2c(); SDA = 0; Delay_i2c(); SCL = 0; } /*i2c停止信号*/ void i2c_stop_fun() { SCL = 0; Delay_i2c(); SDA = 0; Delay_i2c(); SCL = 1; Delay_i2c(); SDA = 1; Delay_i2c(); } /*i2c向器件即eeprom中写入数据*/ void i2c_write_data(unsigned char byte)//i2c先发送高位再发送低位 { unsigned char i; unsigned char j; unsigned char mask = 0x80; for(i = 0;i < 8;i++) { SCL = 0; //只有在scl为低电平的时候，sda的状态才能发生变化 Delay_i2c(); if(0 == (mask&byte)) //必须得是判断0 == (mask&byte),如果是判断1 == (mask&byte)的话，那么会出错 { SDA = 0; } else { SDA = 1; } mask >>= 1; Delay_i2c(); SCL = 1; //在sda发送数据时，scl必须保持高电平 Delay_i2c(); } SCL = 0; //最后SCL经历了一个从低电平到高电平再到低电平的变化,而SDA的状态一直不变 SDA = 1; Delay_i2c(); //还缺少接受从机应答位的语句 SCL = 1; j = SDA; Delay_i2c(); SCL = 0; } unsigned char i2c_read_data() { unsigned char i; unsigned char byte = 0; for(i = 0;i < 8;i++) { SCL = 0; SDA = 1;//每一次必须先将SDA置高电平 Delay_i2c(); SCL = 1; Delay_i2c(); byte <<= 1; //先左移一位,如果左移放在if语句后面的话，当i=7的时候，最后还会执行一句左移，那么最高位将会被移出去 if(1 == SDA) { byte = byte | 0x01; } Delay_i2c(); } SCL = 0; SDA = 1; Delay_i2c(); SCL = 1; Delay_i2c(); SCL = 0; return byte; } /*i2c向eeprom中写入数据*/ void i2c_write_eeprom(unsigned char addr,unsigned char databyte) { i2c_start_fun();//在写函数的开始需要一个起始信号 i2c_write_data(0xa0);//先写入器件即eeprom的地址 i2c_write_data(addr);//再写入数据存储地址 i2c_write_data(databyte);//最后写入要发送的数据 i2c_stop_fun();//在写函数的最后需要一个停止信号 } /*i2c从eeprom中读取数据*/ unsigned char i2c_read_eeprom(unsigned char addr) { unsigned char databyte; i2c_start_fun(); i2c_write_data(0xa0); i2c_write_data(addr); i2c_start_fun(); i2c_write_data(0xa1); databyte = i2c_read_data(); i2c_stop_fun(); return databyte; } /*定时器初始化 中断初始化 串口控制寄存器SCON初始化*/ void UART_init(void) { SCON = 0x50; TMOD = 0x20; TH1 = 0xFD; TL1 = 0xFD; TR1 = 1; ET1 = 0; //禁止定时器1中断 EA = 1; ES = 1; } /*void UART_Send_Byte(unsigned char dat) { SBUF = dat; while(!TI); TI = 0; } */ void Send_data(unsigned char duan,unsigned char wei) { unsigned char i; //还是用hc595移位寄存器来进行操作，参照着数码管的原理与时序来写程序 HC595_RCK = 0; for(i = 0;i < 8;i++) { HC595_SCK = 0; if(0 != (duan&0x80)) { HC595_DATA = 1; } else { HC595_DATA = 0; } HC595_SCK = 1; duan = duan << 1; } for(i = 0;i < 8;i++) { HC595_SCK = 0; if(0 != (wei&0x80)) { HC595_DATA = 1; } else { HC595_DATA = 0; } HC595_SCK = 1; wei = wei << 1; } HC595_RCK = 1; } void main() { unsigned char i,j; UART_init(); InitI2C(); i2c_write_eeprom(0x01,time[0]); i2c_write_eeprom(0x02,time[1]); i2c_write_eeprom(0x03,time[2]); i2c_write_eeprom(0x04,time[3]); i2c_write_eeprom(0x05,time[4]); i2c_write_eeprom(0x06,time[5]); i2c_write_eeprom(0x06,time[6]); /*while(1) { for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[second1],Wei_choose[0]); Send_data(Duan_choose[second2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[minute1],Wei_choose[0]); Send_data(Duan_choose[minute2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[hour1],Wei_choose[0]); Send_data(Duan_choose[hour2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[day1],Wei_choose[0]); Send_data(Duan_choose[day2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[month1],Wei_choose[0]); Send_data(Duan_choose[month2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[week1],Wei_choose[0]); Send_data(Duan_choose[week2],Wei_choose[1]); } } Delay(1000); for(i = 10000;i>0;i--) { for(j = 0;j < 110;j++) { Send_data(Duan_choose[year1],Wei_choose[0]); Send_data(Duan_choose[year2],Wei_choose[1]); } } Delay(1000); } */ /* UART_Send_Byte(i2c_read_eeprom(0x01)+'0'); UART_Send_Byte(i2c_read_eeprom(0x02)+'0'); UART_Send_Byte(i2c_read_eeprom(0x03)+'0'); UART_Send_Byte(i2c_read_eeprom(0x04)+'0'); UART_Send_Byte(i2c_read_eeprom(0x05)+'0'); UART_Send_Byte(i2c_read_eeprom(0x06)+'0'); UART_Send_Byte(i2c_read_eeprom(0x08)+'0'); UART_Send_Byte(i2c_read_eeprom(0x09)+'0'); UART_Send_Byte(i2c_read_eeprom(0x0a)+'0'); UART_Send_Byte(i2c_read_eeprom(0x0b)+'0'); UART_Send_Byte(i2c_read_eeprom(0x0c)+'0'); UART_Send_Byte(i2c_read_eeprom(0x0d)+'0'); */ }