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[example] RTC MCP7941x on Raspberry Pico
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/* | ||
* Copyright (c) 2022, Raphael Lehmann | ||
* | ||
* 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/. | ||
*/ | ||
// ---------------------------------------------------------------------------- | ||
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#include <modm/board.hpp> | ||
#include <modm/debug/logger.hpp> | ||
#include <modm/driver/rtc/mcp7941x.hpp> | ||
#include <modm/processing/protothread.hpp> | ||
#include <modm/processing/timer.hpp> | ||
#include <optional> | ||
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// Set the log level | ||
#undef MODM_LOG_LEVEL | ||
#define MODM_LOG_LEVEL modm::log::INFO | ||
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// Create an IODeviceWrapper around the Uart Peripheral we want to use | ||
modm::IODeviceWrapper<Uart0, modm::IOBuffer::BlockIfFull> loggerDevice; | ||
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// Set all four logger streams to use the UART | ||
modm::log::Logger modm::log::debug(loggerDevice); | ||
modm::log::Logger modm::log::info(loggerDevice); | ||
modm::log::Logger modm::log::warning(loggerDevice); | ||
modm::log::Logger modm::log::error(loggerDevice); | ||
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using MyI2cMaster = modm::platform::I2cMaster0; | ||
using I2cScl = modm::platform::Gpio1; | ||
using I2cSda = modm::platform::Gpio0; | ||
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class RtcThread : public modm::pt::Protothread | ||
{ | ||
public: | ||
bool | ||
update() | ||
{ | ||
PT_BEGIN(); | ||
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if(PT_CALL(rtc.oscillatorRunning())) { | ||
MODM_LOG_ERROR << "RTC oscillator is running." << modm::endl; | ||
} | ||
else { | ||
MODM_LOG_ERROR << "RTC oscillator is NOT running." << modm::endl; | ||
} | ||
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MODM_LOG_INFO << "Setting date/time to 01.01.2020 00:00.00h" << modm::endl; | ||
dateTime.days = 1; | ||
dateTime.months = 1; | ||
dateTime.years = 20; | ||
dateTime.hours = 0; | ||
dateTime.minutes = 0; | ||
dateTime.seconds = 0; | ||
while(not PT_CALL(rtc.setDateTime(dateTime))) { | ||
MODM_LOG_ERROR << "Unable to set date/time." << modm::endl; | ||
timeout.restart(500ms); | ||
PT_WAIT_UNTIL(timeout.isExpired()); | ||
} | ||
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timeout.restart(500ms); | ||
PT_WAIT_UNTIL(timeout.isExpired()); | ||
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if(PT_CALL(rtc.oscillatorRunning())) { | ||
MODM_LOG_ERROR << "RTC oscillator is running." << modm::endl; | ||
} | ||
else { | ||
MODM_LOG_ERROR << "RTC oscillator is NOT running." << modm::endl; | ||
} | ||
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while (true) | ||
{ | ||
dateTime2 = PT_CALL(rtc.getDateTime()); | ||
if(dateTime2.has_value()) { | ||
MODM_LOG_INFO.printf("%02u.%02u.%02u ", dateTime2->days, dateTime2->months, dateTime2->years); | ||
MODM_LOG_INFO.printf("%02u:%02u.%02uh\n", dateTime2->hours, dateTime2->minutes, dateTime2->seconds); | ||
} | ||
else { | ||
MODM_LOG_ERROR << "Unable to read from RTC." << modm::endl; | ||
} | ||
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timeout.restart(2500ms); | ||
PT_WAIT_UNTIL(timeout.isExpired()); | ||
} | ||
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PT_END(); | ||
} | ||
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private: | ||
modm::Mcp7941x<MyI2cMaster> rtc{}; | ||
modm::mcp7941x::DateTime dateTime{}; | ||
std::optional<modm::mcp7941x::DateTime> dateTime2{}; | ||
modm::ShortTimeout timeout; | ||
}; | ||
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using namespace Board; | ||
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int | ||
main() | ||
{ | ||
Board::initialize(); | ||
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// initialize Uart0 for MODM_LOG_* | ||
Uart0::connect<GpioOutput16::Tx>(); | ||
Uart0::initialize<Board::SystemClock, 115200_Bd>(); | ||
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Leds::setOutput(); | ||
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MyI2cMaster::connect<I2cScl::Scl, I2cSda::Sda>(); | ||
MyI2cMaster::initialize<SystemClock, 100_kHz>(); | ||
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MODM_LOG_INFO << "RTC MCP7941x Example on Raspberry Pico" << modm::endl; | ||
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modm::Mcp7941xEeprom<MyI2cMaster> eeprom{}; | ||
if (auto data = RF_CALL_BLOCKING(eeprom.getUniqueId())) { | ||
MODM_LOG_INFO << "Unique ID (EUI-48/64): "; | ||
MODM_LOG_INFO << modm::hex << (*data)[0] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[1] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[2] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[3] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[4] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[5] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[6] << modm::ascii << ":"; | ||
MODM_LOG_INFO << modm::hex << (*data)[7] << modm::ascii << modm::endl; | ||
} | ||
else { | ||
MODM_LOG_ERROR << "Unable to read unique ID from RTC." << modm::endl; | ||
} | ||
modm::delay(500ms); | ||
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RtcThread rtcThread; | ||
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while (true) | ||
{ | ||
LedGreen::toggle(); | ||
rtcThread.update(); | ||
} | ||
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return 0; | ||
} |
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<library> | ||
<extends>modm:rp-pico</extends> | ||
<options> | ||
<option name="modm:build:build.path">../../../build/rp_pico/rtc_mcp7941x</option> | ||
<option name="modm:platform:cortex-m:vector_table_location">ram</option> | ||
</options> | ||
<modules> | ||
<module>modm:debug</module> | ||
<module>modm:driver:mcp7941x</module> | ||
<module>modm:io</module> | ||
<module>modm:platform:i2c:0</module> | ||
<module>modm:platform:uart:0</module> | ||
<module>modm:processing:protothread</module> | ||
<module>modm:processing:timer</module> | ||
<module>modm:build:scons</module> | ||
</modules> | ||
</library> |