[ext] Upgrade the :freertos module to a:FreeRTOS

Upgrades to AWS a:FreeRTOS v10 with MIT license and adds a generic
port for all Cortex-M architectures and adds examples.

.gitmodules

@@ -19,3 +19,6 @@
 [submodule "ext/mpaland/printf"]
 	path = ext/mpaland/printf
 	url = https://github.com/modm-ext/printf.git
+[submodule "ext/aws/freertos"]
+	path = ext/aws/freertos
+	url = https://github.com/modm-ext/freertos-partial.git

examples/README.md

@@ -94,7 +94,7 @@ make gdb
 
 ## Interesting Examples
 
-We have a lot of examples, <!--examplecount-->171<!--/examplecount--> to be
+We have a lot of examples, <!--examplecount-->175<!--/examplecount--> to be
 exact, but here are some of our favorite examples for our supported development
 boards:
 

examples/nucleo_f103rb/rtos/main.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014, Georgi Grinshpun
+ * Copyright (c) 2014, Sascha Schade
+ * Copyright (c) 2015-2017, 2019 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 <modm/board.hpp>
+#include <modm/processing/rtos.hpp>
+
+using namespace modm::platform;
+using namespace modm::literals;
+
+/**
+ * This example uses four threads to check if task switching works correctly.
+ *
+ * What to expect?
+ * ---------------
+ * - All our LEDs blinking at different rates, about 3 to 4 Hz
+ * - A string at 115200 baud
+ *
+ *  0aA!1bB"2cC#3dD$4eE%5fF&6gG'7hH(8iI9)jJ0*aA1!bB2"cC
+ *
+ * Each thread prints out a sequence
+ *    0123456789
+ *    abcdefghij
+ *    ABCDEFGHIJ
+ *    !"#$%&'()*
+ * respectivly.
+ */
+
+// ----------------------------------------------------------------------------
+template <typename Gpio, int SleepTime>
+class P: modm::rtos::Thread
+{
+	char c;
+	uint8_t i = 0;
+	volatile float a = 10.f;
+public:
+	P(char c): Thread(2,1<<10), c(c) {}
+
+	void run()
+	{
+		Gpio::setOutput();
+		while (1)
+		{
+			sleep(SleepTime * MILLISECONDS);
+
+			Gpio::toggle();
+			{
+				static modm::rtos::Mutex lm;
+				modm::rtos::MutexGuard m(lm);
+				MODM_LOG_INFO << char(i + c);
+			}
+			i = (i+1)%10;
+			a *= 3.141f;
+		}
+	}
+};
+
+P< Board::LedD13, 260      > p1('0');
+P< Board::LedD13, 260 + 10 > p2('a');
+P< Board::LedD13, 260 + 20 > p3('A');
+P< Board::LedD13, 260 + 30 > p4('!');
+
+
+// ----------------------------------------------------------------------------
+int
+main()
+{
+	Board::initialize();
+	modm::rtos::Scheduler::schedule();
+	return 0;
+}

examples/nucleo_f103rb/rtos/project.xml

@@ -0,0 +1,10 @@
+<library>
+  <extends>modm:nucleo-f103rb</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f103rb/rtos</option>
+  </options>
+  <modules>
+    <module>modm:processing:rtos</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>

examples/nucleo_f303k8/rtos/main.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014, Georgi Grinshpun
+ * Copyright (c) 2014, Sascha Schade
+ * Copyright (c) 2015-2017, 2019 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 <modm/board.hpp>
+#include <modm/processing/rtos.hpp>
+
+using namespace modm::platform;
+using namespace modm::literals;
+
+/**
+ * This example uses four threads to check if task switching works correctly.
+ *
+ * What to expect?
+ * ---------------
+ * - All our LEDs blinking at different rates, about 3 to 4 Hz
+ * - A string at 115200 baud
+ *
+ *  0aA!1bB"2cC#3dD$4eE%5fF&6gG'7hH(8iI9)jJ0*aA1!bB2"cC
+ *
+ * Each thread prints out a sequence
+ *    0123456789
+ *    abcdefghij
+ *    ABCDEFGHIJ
+ *    !"#$%&'()*
+ * respectivly.
+ */
+
+// ----------------------------------------------------------------------------
+template <typename Gpio, int SleepTime>
+class P: modm::rtos::Thread
+{
+	char c;
+	uint8_t i = 0;
+	volatile float a = 10.f;
+public:
+	P(char c): Thread(2,1<<10), c(c) {}
+
+	void run()
+	{
+		Gpio::setOutput();
+		while (1)
+		{
+			sleep(SleepTime * MILLISECONDS);
+
+			Gpio::toggle();
+			{
+				static modm::rtos::Mutex lm;
+				modm::rtos::MutexGuard m(lm);
+				MODM_LOG_INFO << char(i + c);
+			}
+			i = (i+1)%10;
+			a *= 3.141f;
+		}
+	}
+};
+
+P< Board::LedD13, 260      > p1('0');
+P< Board::LedD13, 260 + 10 > p2('a');
+P< Board::LedD13, 260 + 20 > p3('A');
+P< Board::LedD13, 260 + 30 > p4('!');
+
+
+// ----------------------------------------------------------------------------
+int
+main()
+{
+	Board::initialize();
+	modm::rtos::Scheduler::schedule();
+	return 0;
+}

examples/nucleo_f303k8/rtos/project.xml

@@ -0,0 +1,10 @@
+<library>
+  <extends>modm:nucleo-f303k8</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f303k8/rtos</option>
+  </options>
+  <modules>
+    <module>modm:processing:rtos</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>

examples/nucleo_f411re/rtos/main.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014, Georgi Grinshpun
+ * Copyright (c) 2014, Sascha Schade
+ * Copyright (c) 2015-2017, 2019 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 <modm/board.hpp>
+#include <modm/processing/rtos.hpp>
+
+using namespace modm::platform;
+using namespace modm::literals;
+
+/**
+ * This example uses four threads to check if task switching works correctly.
+ *
+ * What to expect?
+ * ---------------
+ * - All our LEDs blinking at different rates, about 3 to 4 Hz
+ * - A string at 115200 baud
+ *
+ *  0aA!1bB"2cC#3dD$4eE%5fF&6gG'7hH(8iI9)jJ0*aA1!bB2"cC
+ *
+ * Each thread prints out a sequence
+ *    0123456789
+ *    abcdefghij
+ *    ABCDEFGHIJ
+ *    !"#$%&'()*
+ * respectivly.
+ */
+
+// ----------------------------------------------------------------------------
+template <typename Gpio, int SleepTime>
+class P: modm::rtos::Thread
+{
+	char c;
+	uint8_t i = 0;
+	volatile float a = 10.f;
+public:
+	P(char c): Thread(2,1<<10), c(c) {}
+
+	void run()
+	{
+		Gpio::setOutput();
+		while (1)
+		{
+			sleep(SleepTime * MILLISECONDS);
+
+			Gpio::toggle();
+			{
+				static modm::rtos::Mutex lm;
+				modm::rtos::MutexGuard m(lm);
+				MODM_LOG_INFO << char(i + c);
+			}
+			i = (i+1)%10;
+			a *= 3.141f;
+		}
+	}
+};
+
+P< Board::LedD13, 260      > p1('0');
+P< Board::LedD13, 260 + 10 > p2('a');
+P< Board::LedD13, 260 + 20 > p3('A');
+P< Board::LedD13, 260 + 30 > p4('!');
+
+
+// ----------------------------------------------------------------------------
+int
+main()
+{
+	Board::initialize();
+	modm::rtos::Scheduler::schedule();
+	return 0;
+}

examples/nucleo_f411re/rtos/project.xml

@@ -0,0 +1,10 @@
+<library>
+  <extends>modm:nucleo-f411re</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f411re/rtos</option>
+  </options>
+  <modules>
+    <module>modm:processing:rtos</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>

examples/nucleo_g071rb/rtos/main.cpp

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2014, Georgi Grinshpun
+ * Copyright (c) 2014, Sascha Schade
+ * Copyright (c) 2015-2017, 2019 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 <modm/board.hpp>
+#include <modm/processing/rtos.hpp>
+
+using namespace modm::platform;
+using namespace modm::literals;
+
+/**
+ * This example uses four threads to check if task switching works correctly.
+ *
+ * What to expect?
+ * ---------------
+ * - All our LEDs blinking at different rates, about 3 to 4 Hz
+ * - A string at 115200 baud
+ *
+ *  0aA!1bB"2cC#3dD$4eE%5fF&6gG'7hH(8iI9)jJ0*aA1!bB2"cC
+ *
+ * Each thread prints out a sequence
+ *    0123456789
+ *    abcdefghij
+ *    ABCDEFGHIJ
+ *    !"#$%&'()*
+ * respectivly.
+ */
+
+// ----------------------------------------------------------------------------
+template <typename Gpio, int SleepTime>
+class P: modm::rtos::Thread
+{
+	char c;
+	uint8_t i = 0;
+	volatile float a = 10.f;
+public:
+	P(char c): Thread(2,1<<10), c(c) {}
+
+	void run()
+	{
+		Gpio::setOutput();
+		while (1)
+		{
+			sleep(SleepTime * MILLISECONDS);
+
+			Gpio::toggle();
+			{
+				static modm::rtos::Mutex lm;
+				modm::rtos::MutexGuard m(lm);
+				MODM_LOG_INFO << char(i + c);
+			}
+			i = (i+1)%10;
+			a *= 3.141f;
+		}
+	}
+};
+
+P< Board::LedD13, 260      > p1('0');
+P< Board::LedD13, 260 + 10 > p2('a');
+P< Board::LedD13, 260 + 20 > p3('A');
+P< Board::LedD13, 260 + 30 > p4('!');
+
+
+// ----------------------------------------------------------------------------
+int
+main()
+{
+	Board::initialize();
+	modm::rtos::Scheduler::schedule();
+	return 0;
+}

examples/nucleo_g071rb/rtos/project.xml

@@ -0,0 +1,10 @@
+<library>
+  <extends>modm:nucleo-g071rb</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_g071rb/rtos</option>
+  </options>
+  <modules>
+    <module>modm:processing:rtos</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>