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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| #!/usr/bin/env python3 | ||
| # -*- coding: utf-8 -*- | ||
| # | ||
| # Copyright (c) 2023, Rasmus Kleist Hørlyck Sørensen | ||
| # | ||
| # This file is part of the modm project. | ||
| # | ||
| # This Source Code Form is subject to the terms of the Mozilla Public | ||
| # License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| # file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| # ----------------------------------------------------------------------------- | ||
|
|
||
| def init(module): | ||
| module.name = ":platform:rtc" | ||
| module.description = "Real Time Clock (RTC)" | ||
|
|
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| def prepare(module, options): | ||
| device = options[":target"] | ||
| if not device.has_driver("rtc:stm32*") or device.identifier.family in ["f1", "f2"]: | ||
| return False | ||
|
|
||
| module.depends( | ||
| ":cmsis:device", | ||
| ":platform:rcc", | ||
| ":architecture:register", | ||
| ":math:calendar", | ||
| ) | ||
|
|
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| return True | ||
|
|
||
| def build(env): | ||
| env.outbasepath = "modm/src/modm/platform/rtc" | ||
| env.copy(".") |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,25 @@ | ||
| /* | ||
| * Copyright (c) 2024, Niklas Hauser | ||
| * | ||
| * This file is part of the modm project. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
| // ---------------------------------------------------------------------------- | ||
|
|
||
| #include "rtc.hpp" | ||
| #include <sys/time.h> | ||
|
|
||
| /* | ||
| extern "C" int | ||
| _gettimeofday(struct timeval *tp, void *) | ||
| { | ||
| const auto milliseconds = Rtc::read(); | ||
| Rtc::update_cache(); | ||
| tp->tv_sec = cache_time_seconds; | ||
| tp->tv_usec = milliseconds * 1000ul; | ||
| return 0; | ||
| } | ||
| */ |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| /* | ||
| * Copyright (c) 2023, Rasmus Kleist Hørlyck Sørensen | ||
| * | ||
| * This file is part of the modm project. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at http://mozilla.org/MPL/2.0/. | ||
| */ | ||
| // ---------------------------------------------------------------------------- | ||
|
|
||
| #ifndef MODM_STM32_RTC_HPP | ||
| #define MODM_STM32_RTC_HPP | ||
|
|
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| #include <chrono> | ||
| #include <ctime> | ||
|
|
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| #include <modm/architecture.hpp> | ||
| #include <modm/math/calendar/date_time.hpp> | ||
|
|
||
| namespace modm::platform | ||
| { | ||
|
|
||
| /** | ||
| * Real Time Clock (RTC) control for STM32 devices | ||
| * | ||
| * @author Niklas Hauser | ||
| * @author Rasmus Kleist Hørlyck Sørensen | ||
| * @ingroup modm_platform_rtc | ||
| */ | ||
| class Rtc : public modm::PeripheralDriver | ||
| { | ||
| public: | ||
| using duration = std::chrono::milliseconds; | ||
| using rep = duration::rep; | ||
| using period = duration::period; | ||
| using time_point = std::chrono::time_point<Rtc, duration>; | ||
| static constexpr bool is_steady = true; | ||
|
|
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| static time_point | ||
| now() noexcept; | ||
|
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| static std::time_t | ||
| to_time_t(const time_point& t) noexcept | ||
| { | ||
| return std::time_t(duration_cast<std::chrono::seconds>(t.time_since_epoch()).count()); | ||
| } | ||
|
|
||
| static time_point | ||
| from_time_t(std::time_t t) noexcept | ||
| { | ||
| using from_t = std::chrono::time_point<Rtc, std::chrono::seconds>; | ||
| return time_point_cast<duration>(from_t(std::chrono::seconds(t))); | ||
| } | ||
|
|
||
| public: | ||
| // Optimized version that returns seconds since epoch | ||
| static std::time_t | ||
| time_t(); | ||
|
|
||
| static modm::DateTime | ||
| dateTime(); | ||
|
|
||
| static void | ||
| setDateTime(const modm::DateTime &dt); | ||
|
|
||
| public: | ||
| static void | ||
| enable(); | ||
|
|
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| static void | ||
| disable(); | ||
|
|
||
| template< class SystemClock > | ||
| static bool | ||
| initialize(); | ||
|
|
||
| /** | ||
| * Synchronized to a remote clock with a high degree of precision | ||
| * | ||
| * @tparam Rep | ||
| * an arithmetic type representing the number of ticks | ||
| * @tparam Period | ||
| * a std::ratio representing the tick period (i.e. the number of second's fractions per tick) | ||
| * | ||
| * @param delay The amount of time to delay (or advance) the | ||
| * @param waitCycle Number of cycles to wait for the INITF bit to be set. (default = 2048) | ||
| * | ||
| * @return True on success | ||
| */ | ||
| // template< typename Rep, typename Period > | ||
| // static bool | ||
| // synchronize(std::chrono::duration<Rep, Period> delay, uint32_t waitCycles = 2048); | ||
|
|
||
| protected: | ||
| /// Unlock RTC register write protection | ||
| static void | ||
| unlock(); | ||
|
|
||
| /// Lock RTC register write protection | ||
| static void | ||
| lock(); | ||
|
|
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| static uint16_t | ||
| read(); | ||
|
|
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| static void | ||
| update_cache(); | ||
|
|
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| struct Data | ||
| { | ||
| union | ||
| { | ||
| struct | ||
| { | ||
| uint8_t second; | ||
| uint8_t minute; | ||
| uint8_t hour; | ||
| } modm_packed; | ||
| uint32_t time32; | ||
| }; | ||
| union | ||
| { | ||
| struct | ||
| { | ||
| uint8_t weekday; | ||
| uint8_t day; | ||
| uint8_t month; | ||
| uint8_t year; | ||
| } modm_packed; | ||
| uint32_t date32; | ||
| }; | ||
| }; | ||
|
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| static inline Data data{}; | ||
|
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| static inline uint64_t cache_time_milliseconds{}; | ||
| static inline uint32_t cache_time_seconds{}; | ||
| static inline uint32_t cache_date_seconds{}; | ||
| static inline uint32_t cache_time{}; | ||
| static inline uint32_t cache_date{}; | ||
|
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| static inline uint32_t (*t2ms)(uint32_t) = [](uint32_t) { return 0ul; }; | ||
| static inline uint32_t (*ms2t)(uint32_t) = [](uint32_t) { return 0ul; }; | ||
|
|
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| static constexpr uint16_t epoch{1970}; | ||
| }; | ||
|
|
||
| } // namespace modm::platform | ||
|
|
||
| #include "rtc_impl.hpp" | ||
|
|
||
| #endif // MODM_STM32_RTC_HPP |
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