315 lines
8.9 KiB
C
315 lines
8.9 KiB
C
/*
|
||
* Copyright (c) 2006-2018, RT-Thread Development Team
|
||
*
|
||
* SPDX-License-Identifier: Apache-2.0
|
||
*
|
||
* Change Logs:
|
||
* Date Author Notes
|
||
* 2017-04-05 lizhen9880 the first version for STM32F429
|
||
*/
|
||
|
||
/* Includes ------------------------------------------------------------------*/
|
||
#include "board.h"
|
||
#include "drv_rtc.h"
|
||
#include <rtdevice.h>
|
||
|
||
#if defined(RT_USING_RTC)
|
||
/* Private typedef -----------------------------------------------------------*/
|
||
/* Private define ------------------------------------------------------------*/
|
||
/* Private macro -------------------------------------------------------------*/
|
||
#ifdef RT_RTC_DEBUG
|
||
#define rtc_debug(format,args...) rt_kprintf(format, ##args)
|
||
#else
|
||
#define rtc_debug(format,args...)
|
||
#endif
|
||
|
||
/* Private variables ---------------------------------------------------------*/
|
||
static struct rt_device rtc;
|
||
|
||
RTC_HandleTypeDef RTC_Handler; //RTC句柄
|
||
|
||
|
||
//RTC初始化
|
||
//返回值:0,初始化成功;
|
||
// 2,进入初始化模式失败;
|
||
rt_uint8_t RTC_Init(void)
|
||
{
|
||
|
||
|
||
RTC_Handler.Instance=RTC;
|
||
RTC_Handler.Init.HourFormat=RTC_HOURFORMAT_24;//RTC设置为24小时格式
|
||
RTC_Handler.Init.AsynchPrediv=0X7F; //RTC异步分频系数(1~0X7F)
|
||
RTC_Handler.Init.SynchPrediv=0XFF; //RTC同步分频系数(0~7FFF)
|
||
RTC_Handler.Init.OutPut=RTC_OUTPUT_DISABLE;
|
||
RTC_Handler.Init.OutPutPolarity=RTC_OUTPUT_POLARITY_HIGH;
|
||
RTC_Handler.Init.OutPutType=RTC_OUTPUT_TYPE_OPENDRAIN;
|
||
if(HAL_RTC_Init(&RTC_Handler)!=HAL_OK) return 2;
|
||
|
||
if(HAL_RTCEx_BKUPRead(&RTC_Handler,RTC_BKP_DR0)!=0X5050)//是否第一次配置
|
||
{
|
||
// RTC_Set_Time(23,59,56,RTC_HOURFORMAT12_PM); //设置时间 ,根据实际时间修改
|
||
// RTC_Set_Date(15,12,27,7); //设置日期
|
||
HAL_RTCEx_BKUPWrite(&RTC_Handler,RTC_BKP_DR0,0X5050);//标记已经初始化过了
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
//RTC底层驱动，时钟配置
|
||
//此函数会被HAL_RTC_Init()调用
|
||
//hrtc:RTC句柄
|
||
void HAL_RTC_MspInit(RTC_HandleTypeDef* hrtc)
|
||
{
|
||
RCC_OscInitTypeDef RCC_OscInitStruct;
|
||
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
|
||
|
||
__HAL_RCC_PWR_CLK_ENABLE();//使能电源时钟PWR
|
||
HAL_PWR_EnableBkUpAccess();//取消备份区域写保护
|
||
|
||
RCC_OscInitStruct.OscillatorType=RCC_OSCILLATORTYPE_LSE;//LSE配置
|
||
RCC_OscInitStruct.PLL.PLLState=RCC_PLL_NONE;
|
||
RCC_OscInitStruct.LSEState=RCC_LSE_ON; //RTC使用LSE
|
||
HAL_RCC_OscConfig(&RCC_OscInitStruct);
|
||
|
||
PeriphClkInitStruct.PeriphClockSelection=RCC_PERIPHCLK_RTC;//外设为RTC
|
||
PeriphClkInitStruct.RTCClockSelection=RCC_RTCCLKSOURCE_LSE;//RTC时钟源为LSE
|
||
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
|
||
|
||
__HAL_RCC_RTC_ENABLE();//RTC时钟使能
|
||
}
|
||
|
||
//设置闹钟时间(按星期闹铃,24小时制)
|
||
//week:星期几(1~7) @ref RTC_WeekDay_Definitions
|
||
//hour,min,sec:小时,分钟,秒钟
|
||
void RTC_Set_AlarmA(rt_uint8_t week,rt_uint8_t hour,rt_uint8_t min,rt_uint8_t sec)
|
||
{
|
||
RTC_AlarmTypeDef RTC_AlarmSturuct;
|
||
|
||
RTC_AlarmSturuct.AlarmTime.Hours=hour; //小时
|
||
RTC_AlarmSturuct.AlarmTime.Minutes=min; //分钟
|
||
RTC_AlarmSturuct.AlarmTime.Seconds=sec; //秒
|
||
RTC_AlarmSturuct.AlarmTime.SubSeconds=0;
|
||
RTC_AlarmSturuct.AlarmTime.TimeFormat=RTC_HOURFORMAT12_AM;
|
||
|
||
RTC_AlarmSturuct.AlarmMask=RTC_ALARMMASK_NONE;//精确匹配星期，时分秒
|
||
RTC_AlarmSturuct.AlarmSubSecondMask=RTC_ALARMSUBSECONDMASK_NONE;
|
||
RTC_AlarmSturuct.AlarmDateWeekDaySel=RTC_ALARMDATEWEEKDAYSEL_WEEKDAY;//按星期
|
||
RTC_AlarmSturuct.AlarmDateWeekDay=week; //星期
|
||
RTC_AlarmSturuct.Alarm=RTC_ALARM_A; //闹钟A
|
||
HAL_RTC_SetAlarm_IT(&RTC_Handler,&RTC_AlarmSturuct,RTC_FORMAT_BIN);
|
||
|
||
HAL_NVIC_SetPriority(RTC_Alarm_IRQn,0x01,0x02); //抢占优先级1,子优先级2
|
||
HAL_NVIC_EnableIRQ(RTC_Alarm_IRQn);
|
||
}
|
||
|
||
//周期性唤醒定时器设置
|
||
/*wksel: @ref RTCEx_Wakeup_Timer_Definitions
|
||
#define RTC_WAKEUPCLOCK_RTCCLK_DIV16 ((uint32_t)0x00000000)
|
||
#define RTC_WAKEUPCLOCK_RTCCLK_DIV8 ((uint32_t)0x00000001)
|
||
#define RTC_WAKEUPCLOCK_RTCCLK_DIV4 ((uint32_t)0x00000002)
|
||
#define RTC_WAKEUPCLOCK_RTCCLK_DIV2 ((uint32_t)0x00000003)
|
||
#define RTC_WAKEUPCLOCK_CK_SPRE_16BITS ((uint32_t)0x00000004)
|
||
#define RTC_WAKEUPCLOCK_CK_SPRE_17BITS ((uint32_t)0x00000006)
|
||
*/
|
||
//cnt:自动重装载值.减到0,产生中断.
|
||
void RTC_Set_WakeUp(rt_uint32_t wksel,rt_uint16_t cnt)
|
||
{
|
||
__HAL_RTC_WAKEUPTIMER_CLEAR_FLAG(&RTC_Handler, RTC_FLAG_WUTF);//清除RTC WAKE UP的标志
|
||
|
||
HAL_RTCEx_SetWakeUpTimer_IT(&RTC_Handler,cnt,wksel); //设置重装载值和时钟
|
||
|
||
HAL_NVIC_SetPriority(RTC_WKUP_IRQn,0x02,0x02); //抢占优先级1,子优先级2
|
||
HAL_NVIC_EnableIRQ(RTC_WKUP_IRQn);
|
||
}
|
||
|
||
//RTC闹钟中断服务函数
|
||
void RTC_Alarm_IRQHandler(void)
|
||
{
|
||
HAL_RTC_AlarmIRQHandler(&RTC_Handler);
|
||
}
|
||
|
||
//RTC闹钟A中断处理回调函数
|
||
void HAL_RTC_AlarmAEventCallback(RTC_HandleTypeDef *hrtc)
|
||
{
|
||
rt_kprintf("ALARM A!\r\n");
|
||
}
|
||
|
||
//RTC WAKE UP中断服务函数
|
||
void RTC_WKUP_IRQHandler(void)
|
||
{
|
||
HAL_RTCEx_WakeUpTimerIRQHandler(&RTC_Handler);
|
||
}
|
||
time_t GetRTCTimeStamp(void)
|
||
{
|
||
RTC_TimeTypeDef RTC_TimeStruct;
|
||
RTC_DateTypeDef RTC_DateStruct;
|
||
struct tm tm_new;
|
||
|
||
HAL_RTC_GetTime(&RTC_Handler,&RTC_TimeStruct,RTC_FORMAT_BIN);
|
||
HAL_RTC_GetDate(&RTC_Handler,&RTC_DateStruct,RTC_FORMAT_BIN);
|
||
tm_new.tm_sec = RTC_TimeStruct.Seconds;
|
||
tm_new.tm_min = RTC_TimeStruct.Minutes;
|
||
tm_new.tm_hour = RTC_TimeStruct.Hours;
|
||
tm_new.tm_mday = RTC_DateStruct.Date;
|
||
tm_new.tm_mon = RTC_DateStruct.Month-1;
|
||
tm_new.tm_year = RTC_DateStruct.Year+100;
|
||
return mktime(&tm_new);
|
||
|
||
}
|
||
rt_err_t SetRTCTimeStamp(time_t time_stamp)
|
||
{
|
||
RTC_TimeTypeDef RTC_TimeStruct;
|
||
RTC_DateTypeDef RTC_DateStruct;
|
||
struct tm *p_tm;
|
||
p_tm = localtime(&time_stamp);
|
||
if(p_tm->tm_year<100)
|
||
{
|
||
return RT_ERROR;
|
||
}
|
||
RTC_TimeStruct.Seconds = p_tm->tm_sec ;
|
||
RTC_TimeStruct.Minutes = p_tm->tm_min ;
|
||
RTC_TimeStruct.Hours = p_tm->tm_hour;
|
||
RTC_DateStruct.Date = p_tm->tm_mday;
|
||
RTC_DateStruct.Month = p_tm->tm_mon+1 ;
|
||
RTC_DateStruct.Year = p_tm->tm_year-100;
|
||
RTC_DateStruct.WeekDay = p_tm->tm_wday+1;
|
||
HAL_RTC_SetTime(&RTC_Handler,&RTC_TimeStruct,RTC_FORMAT_BIN);
|
||
HAL_RTC_SetDate(&RTC_Handler,&RTC_DateStruct,RTC_FORMAT_BIN);
|
||
|
||
return RT_EOK;
|
||
}
|
||
/* Private function prototypes -----------------------------------------------*/
|
||
/* Private functions ---------------------------------------------------------*/
|
||
static rt_err_t rt_rtc_open(rt_device_t dev, rt_uint16_t oflag)
|
||
{
|
||
if (dev->rx_indicate != RT_NULL)
|
||
{
|
||
/* Open Interrupt */
|
||
}
|
||
|
||
return RT_EOK;
|
||
}
|
||
|
||
static rt_size_t rt_rtc_read(
|
||
rt_device_t dev,
|
||
rt_off_t pos,
|
||
void* buffer,
|
||
rt_size_t size)
|
||
{
|
||
|
||
return 0;
|
||
}
|
||
|
||
/***************************************************************************//**
|
||
* @brief
|
||
* Configure RTC device
|
||
*
|
||
* @details
|
||
*
|
||
* @note
|
||
*
|
||
* @param[in] dev
|
||
* Pointer to device descriptor
|
||
*
|
||
* @param[in] cmd
|
||
* RTC control command
|
||
*
|
||
* @param[in] args
|
||
* Arguments
|
||
*
|
||
* @return
|
||
* Error code
|
||
******************************************************************************/
|
||
static rt_err_t rt_rtc_control(rt_device_t dev, int cmd, void *args)
|
||
{
|
||
rt_err_t result;
|
||
RT_ASSERT(dev != RT_NULL);
|
||
switch (cmd)
|
||
{
|
||
case RT_DEVICE_CTRL_RTC_GET_TIME:
|
||
|
||
*(rt_uint32_t *)args = GetRTCTimeStamp();
|
||
rtc_debug("RTC: get rtc_time %x\n", *(rt_uint32_t *)args());
|
||
break;
|
||
|
||
case RT_DEVICE_CTRL_RTC_SET_TIME:
|
||
{
|
||
result = SetRTCTimeStamp(*(rt_uint32_t *)args);
|
||
rtc_debug("RTC: set rtc_time %x\n", *(rt_uint32_t *)args);
|
||
|
||
/* Reset counter */
|
||
|
||
}
|
||
break;
|
||
}
|
||
|
||
return result;
|
||
}
|
||
|
||
|
||
|
||
/***************************************************************************//**
|
||
* @brief
|
||
* Register RTC device
|
||
*
|
||
* @details
|
||
*
|
||
* @note
|
||
*
|
||
* @param[in] device
|
||
* Pointer to device descriptor
|
||
*
|
||
* @param[in] name
|
||
* Device name
|
||
*
|
||
* @param[in] flag
|
||
* Configuration flags
|
||
*
|
||
* @return
|
||
* Error code
|
||
******************************************************************************/
|
||
rt_err_t rt_hw_rtc_register(
|
||
rt_device_t device,
|
||
const char *name,
|
||
rt_uint32_t flag)
|
||
{
|
||
RT_ASSERT(device != RT_NULL);
|
||
|
||
device->type = RT_Device_Class_RTC;
|
||
device->rx_indicate = RT_NULL;
|
||
device->tx_complete = RT_NULL;
|
||
device->init = RT_NULL;
|
||
device->open = rt_rtc_open;
|
||
device->close = RT_NULL;
|
||
device->read = rt_rtc_read;
|
||
device->write = RT_NULL;
|
||
device->control = rt_rtc_control;
|
||
device->user_data = RT_NULL; /* no private */
|
||
|
||
/* register a character device */
|
||
return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | flag);
|
||
}
|
||
|
||
|
||
/***************************************************************************//**
|
||
* @brief
|
||
* Initialize all RTC module related hardware and register RTC device to kernel
|
||
*
|
||
* @details
|
||
*
|
||
* @note
|
||
******************************************************************************/
|
||
int rt_hw_rtc_init(void)
|
||
{
|
||
RTC_Init();
|
||
/* register rtc device */
|
||
rt_hw_rtc_register(&rtc, RT_RTC_NAME, 0);
|
||
return RT_EOK;
|
||
}
|
||
INIT_BOARD_EXPORT(rt_hw_rtc_init);
|
||
#endif
|
||
|
||
/***************************************************************************//**
|
||
* @}
|
||
******************************************************************************/
|
||
|