97 lines
2.8 KiB
C++
97 lines
2.8 KiB
C++
/*
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* Copyright (C) EdgeTX
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*
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* Based on code named
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* opentx - https://github.com/opentx/opentx
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* th9x - http://code.google.com/p/th9x
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* er9x - http://code.google.com/p/er9x
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* gruvin9x - http://code.google.com/p/gruvin9x
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*
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* License GPLv2: http://www.gnu.org/licenses/gpl-2.0.html
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "opentx.h"
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void rtcSetTime(const struct gtm * t)
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{
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g_ms100 = 0; // start of next second begins now
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RTC_TimeTypeDef RTC_TimeStruct;
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RTC_DateTypeDef RTC_DateStruct;
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RTC_TimeStructInit(&RTC_TimeStruct);
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RTC_DateStructInit(&RTC_DateStruct);
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RTC_TimeStruct.RTC_Hours = t->tm_hour;
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RTC_TimeStruct.RTC_Minutes = t->tm_min;
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RTC_TimeStruct.RTC_Seconds = t->tm_sec;
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RTC_DateStruct.RTC_Year = t->tm_year - 100;
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RTC_DateStruct.RTC_Month = t->tm_mon + 1;
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RTC_DateStruct.RTC_Date = t->tm_mday;
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RTC_SetTime(RTC_Format_BIN, &RTC_TimeStruct);
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RTC_SetDate(RTC_Format_BIN, &RTC_DateStruct);
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}
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void rtcGetTime(struct gtm * t)
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{
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RTC_TimeTypeDef RTC_TimeStruct;
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RTC_DateTypeDef RTC_DateStruct;
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RTC_GetTime(RTC_Format_BIN, &RTC_TimeStruct);
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RTC_GetDate(RTC_Format_BIN, &RTC_DateStruct);
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t->tm_hour = RTC_TimeStruct.RTC_Hours;
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t->tm_min = RTC_TimeStruct.RTC_Minutes;
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t->tm_sec = RTC_TimeStruct.RTC_Seconds;
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t->tm_year = RTC_DateStruct.RTC_Year + 100; // STM32 year is two decimals only (so base is currently 2000), gtm is based on number of years since 1900
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t->tm_mon = RTC_DateStruct.RTC_Month - 1;
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t->tm_mday = RTC_DateStruct.RTC_Date;
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}
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void rtcInit()
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{
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RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
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PWR_BackupAccessCmd(ENABLE);
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RCC_LSEConfig(RCC_LSE_ON);
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// Prevent lockup in case of 32kHz oscillator failure
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uint32_t i = 0;
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while (RCC_GetFlagStatus(RCC_FLAG_LSERDY) == RESET) {
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if (++i > 1000000)
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return;
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}
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RCC_RTCCLKConfig(RCC_RTCCLKSource_LSE);
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RCC_RTCCLKCmd(ENABLE);
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RTC_WaitForSynchro();
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#if !defined(BOOT)
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RTC_InitTypeDef RTC_InitStruct;
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// RTC time base = LSE / ((AsynchPrediv+1) * (SynchPrediv+1)) = 1 Hz*/
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RTC_InitStruct.RTC_HourFormat = RTC_HourFormat_24;
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RTC_InitStruct.RTC_AsynchPrediv = 127;
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RTC_InitStruct.RTC_SynchPrediv = 255;
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RTC_Init(&RTC_InitStruct);
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struct gtm utm;
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rtcGetTime(&utm);
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g_rtcTime = gmktime(&utm);
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#endif
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#if defined(RTC_BACKUP_RAM) && !defined(BOOT)
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RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_BKPSRAM, ENABLE);
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PWR_BackupRegulatorCmd(ENABLE);
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#endif
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}
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