基于STM32F103的—DS3231+OLED0.96_IIC万年历时钟程序 -

#include "DS3231.h"
#include "i2c_soft.h"
#include "delay.h"
Calendar_OBJ calendar;
#define DS3231_WriteAddress 0xD0
#define DS3231_ReadAddress 0xD1
//bcd转hex
u8 BCD2HEX(u8 val)
{
u8 i;
i= val&0x0f;
val >>= 4;
val &= 0x0f;
val *= 10;
i += val;
return i;
}
u16 B_BCD(u8 val)
{
u8 i,j,k;
i=val/10;
j=val%10;
k=j+(i<<4);
return k;
}
void DS3231_WR_Byte(u8 addr,u8 bytedata)
{
I2C_Start();
I2C_SendByte(DS3231_WriteAddress);
I2C_WaitAck();
I2C_SendByte(addr);
I2C_WaitAck();
I2C_SendByte(bytedata);
I2C_WaitAck();
I2C_Stop();
}
u8 DS3231_RD_Byte(u8 addr)
{
u8 Dat=0;
I2C_Start();
I2C_SendByte(DS3231_WriteAddress);
I2C_WaitAck();
I2C_SendByte(addr);
I2C_WaitAck();
I2C_Start();
I2C_SendByte(DS3231_ReadAddress);
I2C_WaitAck();
Dat=I2C_ReceiveByte();
I2C_Stop();
return Dat;
}
//ds3231初始化函数
void DS3231_Init(void)
{
I2C_GPIO_Config();
DS3231_WR_Byte(0x0e,0);
delay_ms(2);
DS3231_WR_Byte(0x0f,0x0);
delay_ms(2);
}
//DS3231初始化设置函数（年月日时分秒周）
void Set_DS3231_Time(u8 yea,u8 mon,u8 da,u8 hou,u8 min,u8 sec,u8 week)
{
u8 temp=0;
temp=B_BCD(yea);
DS3231_WR_Byte(0x06,temp);
temp=B_BCD(mon);
DS3231_WR_Byte(0x05,temp);
temp=B_BCD(da);
DS3231_WR_Byte(0x04,temp);
temp=B_BCD(hou);
DS3231_WR_Byte(0x02,temp);
temp=B_BCD(min);
DS3231_WR_Byte(0x01,temp);
temp=B_BCD(sec);
DS3231_WR_Byte(0x00,temp);
temp=B_BCD(week);
DS3231_WR_Byte(0x03,temp);
}
void Get_DS3231_Time(void)
{
calendar.w_year=DS3231_RD_Byte(0x06);
calendar.w_year=BCD2HEX(calendar.w_year);
calendar.w_month=DS3231_RD_Byte(0x05);
calendar.w_month=BCD2HEX(calendar.w_month);
calendar.w_date=DS3231_RD_Byte(0x04);
calendar.w_date=BCD2HEX(calendar.w_date);
calendar.hour=DS3231_RD_Byte(0x02);
calendar.hour&=0x3f;
calendar.hour=BCD2HEX(calendar.hour);
calendar.min=DS3231_RD_Byte(0x01);
calendar.min=BCD2HEX(calendar.min);
calendar.sec=DS3231_RD_Byte(0x00);
calendar.sec=BCD2HEX(calendar.sec);
calendar.week=DS3231_RD_Byte(0x03);
calendar.week=BCD2HEX(calendar.week);
DS3231_WR_Byte(0x0e,0x20);
calendar.temper_H=DS3231_RD_Byte(0x11);
calendar.temper_L=(DS3231_RD_Byte(0x12)>>6)*25;
}

复制代码

#include "led.h"
#include "exti.h"
#include "oled.h"
#include "i2c_soft.h"
#include "DS3231.h"
#include "delay.h"
#include "sys.h"
#include "bmp.h"
int main(void)
{
u8 k=0;//*t=0,p=2,
delay_init(); //延时函数初始化
LED_Init(); //初始化与LED连接的硬件接口
I2C_GPIO_Config();
EXTI_KEY_Config();
DS3231_Init();
//Set_DS3231_Time(21,10,16,9,21,00,6);//21年10月16号21分00秒周六 .第1次初始化DS3231使用后注销
OLED_Init();
OLED_Clear();
//LED1_ON; //LED1 ON
while(1)
{
Get_DS3231_Time();
if(k!=calendar.sec)
{
k=calendar.sec;
//显示日期
OLED_ShowString(0,0,"2",16); //显示年的千位字符2
OLED_ShowString(10,0,"0",16); //显示年的百位字符0
OLED_ShowChar(20,0,calendar.w_year/10+48,16);
OLED_ShowChar(31,0,calendar.w_year%10+48,16);
OLED_ShowCHinese(40,0,0);//在2列6行显示”年“
OLED_ShowChar(59,0,calendar.w_month/10+48,16);
OLED_ShowChar(68,0,calendar.w_month%10+48,16);
OLED_ShowCHinese(78,0,1);//在2列6行显示”月“
OLED_ShowChar(96,0,calendar.w_date/10+48,16);
OLED_ShowChar(105,0,calendar.w_date%10+48,16);
OLED_ShowCHinese(113,0,14);//在2列6行显示”日“
//显示时间
OLED_Show16X32(0,2,calendar.hour/10);
OLED_Show16X32(17,2,calendar.hour%10);
OLED_Show16X32(33,2,10);
OLED_Show16X32(48,2,calendar.min/10);
OLED_Show16X32(64,2,calendar.min%10);
OLED_Show16X32(80,2,10);
OLED_Show16X32(96,2,calendar.sec/10);
OLED_Show16X32(111,2,calendar.sec%10);
//显示星期
// OLED_ShowCHinese(2,6,6);//在2列6行显示”星“
// OLED_ShowCHinese(18,6,7);//在18列6行显示”期“
OLED_ShowCHinese(0,6,2);//在2列6行显示”周“
OLED_ShowCHinese(20,6,calendar.week+7); //在34列6行显示”星期数“
//显示温度数据
//OLED_ShowChar(70,6,127,16); //温度计图标
OLED_ShowCHinese(46,6,4);//在2列6行显示”温“
OLED_ShowCHinese(64,6,5);//在18列6行显示”度“
OLED_ShowChar(80,6,calendar.temper_H/10+48,16);//显示温度十位
OLED_ShowChar(89,6,calendar.temper_H%10+48,16);//显示温度个位
OLED_ShowString(97,6,".",16);//.点
OLED_ShowChar(104,6,calendar.temper_L/10+48,16);//显示小数
OLED_ShowCHinese(113,6,3);//温度C
}
}
}

复制代码