[examples] Add ITM example for NUCLEO-F103RB

examples/README.md

@@ -94,7 +94,7 @@ make gdb
 
 ## Interesting Examples
 
-We have a lot of examples, <!--examplecount-->176<!--/examplecount--> to be
+We have a lot of examples, <!--examplecount-->177<!--/examplecount--> to be
 exact, but here are some of our favorite examples for our supported development
 boards:
 

examples/nucleo_f103rb/itm/main.cpp

@@ -0,0 +1,52 @@
+/*
+ * Copyright (c) 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.hpp>
+
+using namespace Board;
+
+modm::IODeviceWrapper<Itm, modm::IOBuffer::DiscardIfFull> itm_device;
+modm::IOStream stream(itm_device);
+
+int
+main()
+{
+	Board::initialize();
+	LedD13::setOutput();
+
+	// Done by OpenOCD: scons itm fcpu=64000000
+	// Itm::initialize<Board::SystemClock, 500_kHz>();
+	// Itm::connect<GpioB3::Traceswo>();
+
+	stream << "Hello from the SWO." << modm::endl;
+	stream << "debug"   << modm::endl;
+	stream << "info"    << modm::endl;
+	stream << "warning" << modm::endl;
+	stream << "error"   << modm::endl;
+
+
+	while (1)
+	{
+		static modm::PeriodicTimer tmr{500};
+		if (tmr.execute())
+		{
+			tmr.restart(Button::read() ? 100 : 500);
+			LedD13::toggle();
+
+			static uint32_t counter{0};
+			stream << "loop: " << counter++ << modm::endl;
+		}
+		Itm::update();
+	}
+
+	return 0;
+}

examples/nucleo_f103rb/itm/project.xml

@@ -0,0 +1,11 @@
+<library>
+  <extends>modm:nucleo-f103rb</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f103rb/itm</option>
+    <option name="modm:platform:itm:buffer.tx">250</option>
+  </options>
+  <modules>
+    <module>modm:build:scons</module>
+    <module>modm:platform:itm</module>
+  </modules>
+</library>