基于stm32的智能万年历代码
时间: 2023-09-09 11:10:32 浏览: 75
以下是一个基于STM32的智能万年历代码的简单示例,仅供参考:
```
#include "stm32f10x.h"
#include "stdio.h"
#include "string.h"
void USART1_Init(void);
void USART1_Send_Char(char c);
void USART1_Send_String(char* str);
void RTC_Init(void);
void RTC_Set_Time(uint8_t hour, uint8_t min, uint8_t sec);
void RTC_Set_Date(uint8_t year, uint8_t month, uint8_t day, uint8_t week_day);
void RTC_Get_Time(char* time_str);
void RTC_Get_Date(char* date_str);
int main(void)
{
USART1_Init();
RTC_Init();
char time_str[20];
char date_str[20];
while(1)
{
RTC_Get_Time(time_str);
RTC_Get_Date(date_str);
USART1_Send_String(date_str);
USART1_Send_Char(' ');
USART1_Send_String(time_str);
USART1_Send_Char('\r');
USART1_Send_Char('\n');
for(int i=0; i<10000000; i++);
}
}
void USART1_Init(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Tx;
USART_Init(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);
}
void USART1_Send_Char(char c)
{
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
USART_SendData(USART1, c);
}
void USART1_Send_String(char* str)
{
while(*str)
{
USART1_Send_Char(*str++);
}
}
void RTC_Init(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR | RCC_APB1Periph_BKP, ENABLE);
PWR_BackupAccessCmd(ENABLE);
RCC_LSEConfig(RCC_LSE_ON);
while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET);
RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
RCC_RTCCLKCmd(ENABLE);
RTC_WaitForSynchro();
RTC_WaitForLastTask();
RTC_SetPrescaler(32767); // 1秒钟
}
void RTC_Set_Time(uint8_t hour, uint8_t min, uint8_t sec)
{
RTC_WaitForLastTask();
RTC_SetCounter(hour*3600 + min*60 + sec);
RTC_WaitForLastTask();
}
void RTC_Set_Date(uint8_t year, uint8_t month, uint8_t day, uint8_t week_day)
{
RTC_WaitForLastTask();
RTC_SetDate(day);
RTC_SetMonth(month);
RTC_SetYear(year);
RTC_SetWeekDay(week_day);
RTC_WaitForLastTask();
}
void RTC_Get_Time(char* time_str)
{
uint32_t time = RTC_GetCounter();
uint8_t hour = time / 3600;
uint8_t min = (time % 3600) / 60;
uint8_t sec = time % 60;
sprintf(time_str, "%02d:%02d:%02d", hour, min, sec);
}
void RTC_Get_Date(char* date_str)
{
uint8_t day = RTC_GetDate();
uint8_t month = RTC_GetMonth();
uint16_t year = RTC_GetYear();
uint8_t week_day = RTC_GetWeekDay();
sprintf(date_str, "%04d-%02d-%02d %02d", year, month, day, week_day);
}
```
在这个代码示例中,我们使用了STM32的USART1串口,将实时时钟和日期信息输出到终端上。
首先,我们需要初始化USART1串口,用于输出信息。然后,使用RTC_Init()函数初始化实时时钟。在主循环中,我们使用RTC_Get_Time()和RTC_Get_Date()函数获取当前时间和日期,并通过USART1输出到终端上。
RTC_Get_Time()和RTC_Get_Date()函数会返回一个字符串,包含格式化后的时间和日期信息。我们使用sprintf()函数将这些信息格式化为一个字符串,然后通过USART1输出到终端上。
当代码运行时,您将在终端上看到实时时钟和日期信息。
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