单片机ds3231+lcd1602库源程序下载

ID:370473 · 发表于 2020-3-3 23:52

已打包成库方便大家使用所有功能用法见main.c
注意h.h mhz.h mhz.c 3231.h 3231.c

程序适配机型 stc8a8k64s4a12
非1t单片机或其他低速机型需移植使用

单片机源程序如下:

#include "stc8.h"
#include "intrins.h"
#include "delay.h"
#define DS3231WriteAddress 0xd0
#define DS3231ReadAddress 0xd1
#define DS3231_Second 0x00
#define DS3231_TimeFirst 0x00
#define DS3231_Minute 0x01
#define DS3231_Hour 0x02
#define DS3231_Week 0x03
#define DS3231_Day 0x04
#define DS3231_Month 0x05
#define DS3231_Year 0x06
#define DS3231_Interrupt 0x0e
#define DS3231_Status 0x0f
//--------------------------秒-分-时-星期-日-月-年
unsigned int SetTime[7];
unsigned int CurrentT[7];
sbit DS3231_scl = P2^1; //DS3231 clock
sbit DS3231_sda = P2^0; //DS3231 data
char get_time(int i){
return CurrentT[i];
}
void DS3231_st(char i) {
if(i=='f'){
DS3231_sda = 0;
delay_us(5);
DS3231_scl = 1;
delay_us(5);
DS3231_sda = 1;
delay_us(5);
}
if(i=='o'){
DS3231_sda = 1;
DS3231_scl = 1;
delay_us(5);
DS3231_sda = 0;
delay_us(5);
}
}
unsigned char DS3231_WriteByte(unsigned char SendByte)
{ //向DS3231设备写一字节数据及8为二进制数据，高位在前
unsigned char i=8;
DS3231_scl = 0;
for(i=0; i<8; i++) {
if(SendByte&0x80){DS3231_sda = 1;}
else {DS3231_sda = 0;}
DS3231_scl = 0;
delay_us(5);
DS3231_scl = 1;
delay_us(5);
SendByte=SendByte<<1;
DS3231_scl = 0;
delay_us(5);
}
DS3231_sda = 1;
delay_us(5);
DS3231_scl = 0;
delay_us(5);
DS3231_scl = 1;
delay_us(5);
i = DS3231_sda;
delay_us(5);
DS3231_scl = 0;
delay_us(5);
return i;
}
unsigned char DS3231_ReceiveByte(unsigned char Response)
{ //接收DS3231发送的数据
unsigned char i=8;
unsigned char ReceiveByte=0;
DS3231_sda = 1;
delay_us(5);
DS3231_scl = 0;
delay_us(5);
for(i=0; i<8; i++){
DS3231_scl = 1;
delay_us(5);
ReceiveByte = ReceiveByte << 1;
ReceiveByte=ReceiveByte|(unsigned char)DS3231_sda;
DS3231_scl = 0;
delay_us(5);
}
if(Response) DS3231_sda = 1;
else DS3231_sda = 0;
delay_us(5);
DS3231_scl = 1;
delay_us(5);
DS3231_scl = 0;
delay_us(5);
DS3231_sda = 1;
delay_us(5);
return ReceiveByte;
}
void DS3231_ReadTime(unsigned int *Pointer){ //从DS3231中读出当前时间
unsigned char Number = 7;
unsigned char Time = 0x00;
DS3231_st('o'); //DS3231芯片IIC通信开始信号
DS3231_WriteByte(DS3231WriteAddress); //写入芯片IIC写地址
DS3231_WriteByte(DS3231_Status); //写入状态寄存器首地址
DS3231_WriteByte(0x00); //关闭闹钟中断标志位
DS3231_st('f'); //DS3231芯片IIC通信停止信号
DS3231_st('o'); //DS3231芯片IIC通信开始信号
DS3231_WriteByte(DS3231WriteAddress); //写入芯片IIC写地址
DS3231_WriteByte(DS3231_TimeFirst); //写入时间寄存器首地址
DS3231_st('o'); //DS3231芯片IIC通信开始信号
DS3231_WriteByte(DS3231ReadAddress); //写入芯片IIC读地址
for(Number=0; Number<6; Number++) {
Time = DS3231_ReceiveByte(0x00);
*Pointer++ = (Time/16*10+Time%16);
}
Time = DS3231_ReceiveByte(0x01);
*Pointer++ = (Time/16*10+Time%16);
DS3231_st('f'); //DS3231芯片IIC通信停止信号
}
void DS3231_SetTime(unsigned int *Pointer){ //向DS3231写入设置时间信息
unsigned char Number = 0x00;
unsigned char TransitionData = 0x00;
DS3231_st('o'); //DS3231芯片IIC通信开始信号
DS3231_WriteByte(DS3231WriteAddress); //写入芯片IIC写地址
DS3231_WriteByte(DS3231_TimeFirst); //写入时间寄存器首地址
for(Number=0; Number<7; Number++) {
TransitionData = *Pointer++;
DS3231_WriteByte((TransitionData/10)*16+TransitionData%10); //向DS3231写入设置时间信息
}
DS3231_st('f'); //DS3231芯片IIC通信停止信号
delay_us(5);
}
void DS3231_Initialization(){ //初始化时钟芯片DS3231,先选择要写入的寄存器，在写入需要设置的指令
DS3231_st('o'); //IIC通信起始信号
DS3231_WriteByte(DS3231WriteAddress); //写入芯片IIC写地址
DS3231_WriteByte(DS3231_Hour); //选择时寄存器为写入地址
DS3231_WriteByte(0x00); //写入指令，时钟范围为0-23，即24小时制式
DS3231_st('f');
DS3231_st('o'); //IIC通信起始信号
DS3231_WriteByte(DS3231WriteAddress); //写入芯片IIC写地址
DS3231_WriteByte(DS3231_Interrupt); //选择中断寄存器为写入地址
DS3231_WriteByte(0x04); //中断寄存器初始化,关闭方波信号，关闭闹钟中断
DS3231_WriteByte(0x00); //状态寄存器初始化,失效32KHz信号输出，不匹配闹钟
DS3231_st('f');
}
void fountion(char fountion,int year,int month,int day,int week,int hour,int min,int seconds)
{
//读/写时间
if(fountion=='s'){
SetTime[0]=seconds;
SetTime[1]=min;
SetTime[2]=hour;
SetTime[3]=week;
SetTime[4]=day;
SetTime[5]=month;
SetTime[6]=year;
DS3231_SetTime(SetTime);
DS3231_Initialization();
}
if(fountion=='r')
{DS3231_ReadTime(CurrentT);}
}