modm/examples/nucleo_l031k6/vector_table_ram/main.cpp at develop · modm-io/modm

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* 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 <modm/board.hpp>

using namespace Board;

// Blink LED with timer 2 interrupt. A custom handler is configured at runtime

// in the vector table located in SRAM.

// If the LED is blinking with a period of 1 second, the vector table has been

// successfully relocated to ram.

// Set the option "modm:platform:cortex-m:vector_table_location" in project.xml

// to place the vector table in ram.

static void tim2Handler()

{

Timer2::acknowledgeInterruptFlags(Timer2::InterruptFlag::Update);

LedD13::toggle();

}

int

main()

{

Board::initialize();

LedD13::setOutput();

// Set custom handler, only works if vector table is in RAM

NVIC_SetVector(TIM2_IRQn, reinterpret_cast<uintptr_t>(&tim2Handler));

Timer2::enable();

Timer2::setMode(Timer2::Mode::UpCounter);

Timer2::setPeriod<Board::SystemClock>(500ms);

Timer2::applyAndReset();

Timer2::start();

Timer2::enableInterrupt(Timer2::Interrupt::Update);

Timer2::enableInterruptVector(true, 5);

uint32_t counter{0};

while (true)

{

modm::delay(100ms);

MODM_LOG_INFO << "loop: " << counter++ << modm::endl;

}

return 0;

}

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