real-time-cpp/ref_app/src/app/led/app_led.cpp at e339225deb7788bb22bc03de7722f5edbae8030e · ckormanyos/real-time-cpp · GitHub

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///////////////////////////////////////////////////////////////////////////////
//  Copyright Christopher Kormanyos 2007 - 2026.
//  Distributed under the Boost Software License,
//  Version 1.0. (See accompanying file LICENSE_1_0.txt
//  or copy at http://www.boost.org/LICENSE_1_0.txt)
//

#include <mcal/mcal.h>
#include <util/utility/util_time.h>

namespace app { namespace led {

auto task_init() -> void;
auto task_func() -> void;

} // namespace led
} // namespace app

namespace local
{
  using app_led_timer_type = util::timer<std::uint32_t>;

  using app_led_tick_type = typename app_led_timer_type::tick_type;

  auto app_led_timer() noexcept -> app_led_timer_type&;

  constexpr app_led_tick_type app_led_delay { app_led_timer_type::seconds(app_led_tick_type{ UINT8_C(1) }) };
} // namespace local

auto local::app_led_timer() noexcept -> app_led_timer_type&
{
  static app_led_timer_type local_app_led_timer { };

  return local_app_led_timer;
}

auto app::led::task_init() -> void
{
  local::app_led_timer().start_interval(local::app_led_delay);

  mcal::led::led0().toggle();
}

auto app::led::task_func() -> void
{
  auto& my_app_led_timer { local::app_led_timer() };

  if(my_app_led_timer.timeout())
  {
    my_app_led_timer.start_interval(local::app_led_delay);

    mcal::led::led0().toggle();
  }
}