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ckormanyos merged 1 commit into from
Nov 18, 2025
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Do even more examples tuning #705

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9 changes: 7 additions & 2 deletions code_snippets/chapter03/chapter03_22-001_mersenne_twister_19937.cpp
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Expand Up @@ -15,6 +15,9 @@
#include <random>
#include <sstream>

template<typename EngineType>
auto do_something() -> void;

template<typename EngineType>
auto do_something() -> void
{
Expand Down Expand Up @@ -61,6 +64,8 @@ auto do_something() -> void
std::cout << strm.str() << std::endl;
}

auto main() -> int;

auto main() -> int
{
// Generate 8 sequences of 3 pseudo-random numbers.
Expand All @@ -77,8 +82,8 @@ auto main() -> int
// Generate 8 sequences of 3 pseudo-random numbers.
for(std::uint_fast8_t i = { UINT8_C(0) }; i < std::uint_fast8_t { UINT8_C(8) }; ++i)
{
// For std::mt19937_64.
using eng64_type = std::mt19937_64;
// For std::mt19937_64.
using eng64_type = std::mt19937_64;

do_something<eng64_type>();
}
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14 changes: 7 additions & 7 deletions examples/chapter09_08/build.bat
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Expand Up @@ -12,22 +12,22 @@
@rem build.bat directory_of_gcc_bin prefix_of_avr_gcc

@rem Usage example A,
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08\tools\Util\msys64\usr\local\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08\tools\Util\msys64\usr\local\gcc-15.1.0-avr\bin" avr

@rem Usage example A1 (use a relative tool path),
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat ".\tools\Util\msys64\usr\local\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat ".\tools\Util\msys64\usr\local\gcc-15.1.0-avr\bin" avr

@rem Usage example B,
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat "C:\Program Files (x86)\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08"
@rem build.bat "C:\Program Files (x86)\gcc-15.1.0-avr\bin" avr


@set TOOL_PATH=%1
@set TOOL_PREFIX=%2

@set CFLAGS=-Wall -Wextra -Wpedantic -mmcu=atmega328p -fsigned-char -O2 -fno-exceptions
@set CFLAGS=-Wall -Wextra -Wpedantic -O2 -mmcu=atmega328p -fsigned-char -fno-exceptions
@set CPPFLAGS=-std=c++14 -fno-rtti -fstrict-enums -fno-use-cxa-atexit -fno-use-cxa-get-exception-ptr -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs
@set CINCLUDES=-Isrc/util/STL_C++XX_stdfloat -Isrc/util/STL -Isrc -Isrc/mcal/avr

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12 changes: 6 additions & 6 deletions examples/chapter09_08/build.sh
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Expand Up @@ -12,7 +12,7 @@
#
# If command
# /usr/bin/avr-g++
# installed, e.g. via command apt-get install gcc-avr avr-libc
# installed, e.g. via command sudo apt-get install gcc-avr avr-libc
# then:
# ./build.sh
#
Expand All @@ -23,11 +23,11 @@
#
# Usage example A (from *nix shell)
# cd /usr/local/real-time-cpp/examples/chapter09_08
# ./build.sh /usr/local/real-time-cpp/examples/chapter09_08/tools/Util/MinGW/msys/1.0/local/gcc-9.2.0-avr/bin avr
# ./build.sh /usr/local/real-time-cpp/examples/chapter09_08a/tools/Util/msys64/usr/local/gcc-15.1.0-avr/bin avr

# Usage example B (from Win* shell such as in Git for Win*)
# cd C:/Users/User/Documents/Ks/uC_Software/Boards/real-time-cpp/examples/chapter09_08
# ./build.sh C:/Users/User/Documents/Ks/uC_Software/Boards/real-time-cpp/examples/chapter09_08/tools/Util/MinGW/msys/1.0/local/gcc-9.2.0-avr/bin avr
# cd C:/Users/ckorm/Documents/Ks/uC_Software/Boards/real-time-cpp/examples/chapter09_08
# ./build.sh C:/Users/ckorm/Documents/Ks/uC_Software/Boards/real-time-cpp/examples/chapter09_08/tools/Util/msys64/usr/local/gcc-15.1.0-avr/bin avr

if [[ $# == 0 ]]; then ## $# is the number of arguments
if [[ -n "$(which avr-g++)" ]]; then ## -n tests if string is not empty
Expand All @@ -47,9 +47,9 @@ else
TOOL_PREFIX="$2"
fi

CFLAGS="-Wall -Wextra -pedantic -mmcu=atmega328p -fsigned-char -O2 -fno-exceptions -gdwarf-2 -ffunction-sections -fdata-sections"
CFLAGS="-Wall -Wextra -Wpedantic -O2 -mmcu=atmega328p -fsigned-char -finline-functions -finline-limit=64 -fno-exceptions -gdwarf-2 -ffunction-sections -fdata-sections"
CPPFLAGS="-std=c++14 -fno-rtti -fstrict-enums -fno-use-cxa-atexit -fno-use-cxa-get-exception-ptr -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs"
CINCLUDES="-Isrc/util/STL_C++XX_stdfloat -Isrc/util/STL -Isrc -Isrc/mcal/avr"
CINCLUDES="-Isrc/util/STL_C++XX_stdfloat -Isrc/util/STL -Isrc/mcal/avr -Isrc"

echo
echo "Building with : build.sh"
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2 changes: 2 additions & 0 deletions examples/chapter09_08/chapter09_08.vcxproj
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Expand Up @@ -320,6 +320,8 @@
<ClInclude Include="src\util\utility\util_utype_helper.h" />
</ItemGroup>
<ItemGroup>
<None Include="build.bat" />
<None Include="build.sh" />
<None Include="src\util\STL\algorithm">
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
<ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
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2 changes: 2 additions & 0 deletions examples/chapter09_08/chapter09_08.vcxproj.filters
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Expand Up @@ -490,6 +490,8 @@
<None Include="src\util\STL\ctime">
<Filter>src\util\STL</Filter>
</None>
<None Include="build.bat" />
<None Include="build.sh" />
</ItemGroup>
<ItemGroup>
<ResourceCompile Include="src\chapter09_08.rc">
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127 changes: 79 additions & 48 deletions examples/chapter09_08/src/app/led/app_led.cpp
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@@ -1,97 +1,128 @@
///////////////////////////////////////////////////////////////////////////////
// Copyright Christopher Kormanyos 2007 - 2018.
// Copyright Christopher Kormanyos 2007 - 2025.
// 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 <cstdint>

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

#include <cstdint>
#include <cstdlib>

namespace app
{
namespace led
{
void task_init();
void task_func();
auto task_init() -> void;
auto task_func() -> void;
}
}

namespace
auto app::led::task_init() -> void
{
using app_led_monochrome_timer_type = util::timer<std::uint32_t>;
using app_led_rgb_timer_type = util::timer<std::uint16_t>;

app_led_monochrome_timer_type app_led_monochrome_timer(app_led_monochrome_timer_type::seconds(1U));
app_led_rgb_timer_type app_led_rgb_timer (app_led_rgb_timer_type::milliseconds(20U));
mcal::led::led_monochrome0().on();

std::uint_fast8_t app_led_hue_r = UINT8_C(255);
std::uint_fast8_t app_led_hue_g;
std::uint_fast8_t app_led_hue_b;
mcal::led::led_rgb0().set_color(UINT8_C(255), UINT8_C(0), UINT8_C(0));
}

void app::led::task_init()
auto app::led::task_func() -> void
{
mcal::led::led_monochrome0().on();
using app_led_monochrome_timer_type = util::timer<std::uint32_t>;

mcal::led::led_rgb0().set_color(app_led_hue_r,
app_led_hue_g,
app_led_hue_b);
}
static app_led_monochrome_timer_type app_led_monochrome_timer { app_led_monochrome_timer_type::seconds(UINT8_C(1)) };

void app::led::task_func()
{
if(app_led_monochrome_timer.timeout())
{
// Toggle the monochrome user LED at 1/2 Hz.
mcal::led::led_monochrome0().toggle();

// Start the next timer interval for the monochrome user LED.
// Start the next 1s timer interval for the monochrome user LED.
app_led_monochrome_timer.start_interval(app_led_monochrome_timer_type::seconds(1U));
}

// Define the color transition states.
enum class color_transition_type
{
red_to_yellow,
yellow_to_green,
green_to_cyan,
cyan_to_blue,
blue_to_magenta,
magenta_to_red
};

using app_led_rgb_timer_type = util::timer<std::uint16_t>;

static app_led_rgb_timer_type app_led_rgb_timer { app_led_rgb_timer_type::milliseconds(UINT8_C(30)) };

if(app_led_rgb_timer.timeout())
{
// Animate the RGB LED with the colors of the spectrum at 50 Hz.
// Initialize the color hues.
static std::uint_fast8_t app_led_hue_r { UINT8_C(255) };
static std::uint_fast8_t app_led_hue_g { UINT8_C(0) };
static std::uint_fast8_t app_led_hue_b { UINT8_C(0) };

// Initialize the color transition state.
static color_transition_type color_transition_state { color_transition_type::red_to_yellow };

// Animate the RGB LED with the colors of the spectrum.

const auto rgb_hue_sum =
static_cast<std::uint_fast16_t>
(
static_cast<std::uint_fast16_t>(app_led_hue_r)
+ static_cast<std::uint_fast16_t>(app_led_hue_g)
+ static_cast<std::uint_fast16_t>(app_led_hue_b)
);

// Define the color transition states.
typedef enum color_transition_enum
const bool rgb_hue_sum_is_in_bump_range
{
red_to_yellow,
yellow_to_green,
green_to_cyan,
cyan_to_blue,
blue_to_magenta,
magenta_to_red
(rgb_hue_sum >= std::uint_fast16_t { UINT16_C(250) })
&& (rgb_hue_sum <= std::uint_fast16_t { UINT16_C(260) })
};

const bool rgb_hue_is_near_bump_point
{
((app_led_hue_r > std::uint_fast8_t { UINT8_C(250) }) && rgb_hue_sum_is_in_bump_range)
|| ((app_led_hue_g > std::uint_fast8_t { UINT8_C(250) }) && rgb_hue_sum_is_in_bump_range)
|| ((app_led_hue_b > std::uint_fast8_t { UINT8_C(250) }) && rgb_hue_sum_is_in_bump_range)
};

unsigned color_persist_time { UINT8_C(30) };

if(rgb_hue_is_near_bump_point)
{
const auto delta_bump_point = std::abs(static_cast<int>(rgb_hue_sum) - static_cast<int>(INT16_C(255)));

if (delta_bump_point == int { INT8_C(0) }) { color_persist_time = unsigned { UINT16_C(600) }; }
else if(delta_bump_point == int { INT8_C(1) }) { color_persist_time = unsigned { UINT16_C(500) }; }
else if(delta_bump_point == int { INT8_C(2) }) { color_persist_time = unsigned { UINT16_C(400) }; }
else if(delta_bump_point == int { INT8_C(3) }) { color_persist_time = unsigned { UINT16_C(300) }; }
else if(delta_bump_point == int { INT8_C(4) }) { color_persist_time = unsigned { UINT16_C(200) }; }
else { color_persist_time = unsigned { UINT16_C(100) }; }
}
color_transition_type;

// Initialize the color transition state.
static color_transition_type color_transition_state = red_to_yellow;
// Make a smooth color transition and increment the color
// transition state if necessary.

// Make a smooth color transition and
// increment the color transition state
// if necessary.
switch(color_transition_state)
{
case red_to_yellow: { if(++app_led_hue_g == UINT8_C(255)) { color_transition_state = yellow_to_green; } } break;
case yellow_to_green: { if(--app_led_hue_r == UINT8_C( 0)) { color_transition_state = green_to_cyan; } } break;
case green_to_cyan: { if(++app_led_hue_b == UINT8_C(255)) { color_transition_state = cyan_to_blue; } } break;
case cyan_to_blue: { if(--app_led_hue_g == UINT8_C( 0)) { color_transition_state = blue_to_magenta; } } break;
case blue_to_magenta: { if(++app_led_hue_r == UINT8_C(255)) { color_transition_state = magenta_to_red; } } break;
case color_transition_type::red_to_yellow: { if(++app_led_hue_g == std::uint_fast8_t { UINT8_C(255) }) { color_transition_state = color_transition_type::yellow_to_green; } } break;
case color_transition_type::yellow_to_green: { if(--app_led_hue_r == std::uint_fast8_t { UINT8_C( 0) }) { color_transition_state = color_transition_type::green_to_cyan; } } break;
case color_transition_type::green_to_cyan: { if(++app_led_hue_b == std::uint_fast8_t { UINT8_C(255) }) { color_transition_state = color_transition_type::cyan_to_blue; } } break;
case color_transition_type::cyan_to_blue: { if(--app_led_hue_g == std::uint_fast8_t { UINT8_C( 0) }) { color_transition_state = color_transition_type::blue_to_magenta; } } break;
case color_transition_type::blue_to_magenta: { if(++app_led_hue_r == std::uint_fast8_t { UINT8_C(255) }) { color_transition_state = color_transition_type::magenta_to_red; } } break;
default:
case magenta_to_red: { if(--app_led_hue_b == UINT8_C( 0)) { color_transition_state = red_to_yellow; } } break;
case color_transition_type::magenta_to_red: { if(--app_led_hue_b == static_cast<std::uint_fast8_t>(UINT8_C( 0))) { color_transition_state = color_transition_type::red_to_yellow; } } break;
}

// Write the next color to the RGB LED.
mcal::led::led_rgb0().set_color(app_led_hue_r,
app_led_hue_g,
app_led_hue_b);
mcal::led::led_rgb0().set_color(app_led_hue_r, app_led_hue_g, app_led_hue_b);

// Start the next timer interval for the RGB LED.
app_led_rgb_timer.start_interval(app_led_rgb_timer_type::milliseconds(20U));
app_led_rgb_timer.start_interval(app_led_rgb_timer_type::milliseconds(color_persist_time));
}
}
14 changes: 7 additions & 7 deletions examples/chapter09_08a/build.bat
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Expand Up @@ -12,22 +12,22 @@
@rem build.bat directory_of_gcc_bin prefix_of_avr_gcc

@rem Usage example A,
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a\tools\Util\msys64\usr\local\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a\tools\Util\msys64\usr\local\gcc-15.1.0-avr\bin" avr

@rem Usage example A1 (use a relative tool path),
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat ".\tools\Util\msys64\usr\local\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat ".\tools\Util\msys64\usr\local\gcc-15.1.0-avr\bin" avr

@rem Usage example B,
@rem cd "C:\Users\User\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat "C:\Program Files (x86)\gcc-11.2.0-avr\bin" avr
@rem cd "C:\Users\ckorm\Documents\Ks\uC_Software\Boards\real-time-cpp\examples\chapter09_08a"
@rem build.bat "C:\Program Files (x86)\gcc-15.1.0-avr\bin" avr


@set TOOL_PATH=%1
@set TOOL_PREFIX=%2

@set CFLAGS=-Wall -Wextra -Wpedantic -mmcu=atmega328p -fsigned-char -O2 -fno-exceptions
@set CFLAGS=-Wall -Wextra -Wpedantic -O2 -mmcu=atmega328p -fsigned-char -fno-exceptions
@set CPPFLAGS=-std=c++14 -fno-rtti -fstrict-enums -fno-use-cxa-atexit -fno-use-cxa-get-exception-ptr -fno-nonansi-builtins -fno-threadsafe-statics -fno-enforce-eh-specs
@set CINCLUDES=-Isrc/util/STL_C++XX_stdfloat -Isrc/util/STL -Isrc -Isrc/mcal/avr

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