[exmaples] Add SPI DMA exmaples for Nucleo-F439ZI and -F767ZI

modm-io · Oct 28, 2021 · 5dcdf1d · 5dcdf1d
1 parent 32f426a
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diff --git a/examples/nucleo_f439zi/spi_dma/main.cpp b/examples/nucleo_f439zi/spi_dma/main.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2021, Raphael Lehmann
+ *
+ * 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 Mosi = GpioOutputB5;
+using Miso = GpioInputB4;
+using Sck = GpioOutputB3;
+using DmaRx = Dma2::Channel0;
+using DmaTx = Dma2::Channel3;
+using Spi = SpiMaster1_Dma<DmaRx, DmaTx>;
+
+class SpiThread : public modm::pt::Protothread
+{
+public:
+
+	bool
+	update()
+	{
+		PT_BEGIN();
+
+		// Enable DMA controller
+		Dma2::enable();
+
+		// Enable and initialize SPI
+		Spi::connect<Mosi::Mosi, Miso::Miso, Sck::Sck>();
+		Spi::initialize<Board::SystemClock, 328_kHz>();
+
+		while (true)
+		{
+			MODM_LOG_INFO << "sendBuffer adress: " << modm::hex << sendBuffer << modm::endl;
+			MODM_LOG_INFO << "receiveBuffer adress: " << modm::hex << receiveBuffer << modm::endl;
+			MODM_LOG_INFO << "Info: 0x20000000 is start of SRAM1" << modm::endl;
+
+			MODM_LOG_INFO << "Before first transfer" << modm::endl;
+
+			// send out 12 bytes, don't care about response
+			PT_CALL(Spi::transfer(sendBuffer, nullptr, 12));
+
+			MODM_LOG_INFO << "After first transfer" << modm::endl;
+
+			// send out 12 bytes, read in 12 bytes
+			PT_CALL(Spi::transfer(sendBuffer, receiveBuffer, 12));
+
+			MODM_LOG_INFO << "After second transfer" << modm::endl << modm::endl;
+
+			timeout.restart(500ms);
+			PT_WAIT_UNTIL(timeout.isExpired());
+		}
+
+		PT_END();
+	}
+
+private:
+	uint8_t sendBuffer[13] { "data to send" };
+	uint8_t receiveBuffer[13];
+	modm::ShortTimeout timeout;
+};
+
+SpiThread spiThread;
+
+int main()
+{
+	Board::initialize();
+
+	MODM_LOG_INFO << "Hello from SPI-DMA example on Nucleo-F439ZI!" << modm::endl;
+
+	while (true)
+	{
+		spiThread.update();
+	}
+
+	return 0;
+}
diff --git a/examples/nucleo_f439zi/spi_dma/project.xml b/examples/nucleo_f439zi/spi_dma/project.xml
@@ -0,0 +1,14 @@
+<library>
+  <extends>modm:nucleo-f439zi</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f439zi/spi_dma</option>
+  </options>
+  <modules>
+    <module>modm:platform:gpio</module>
+    <module>modm:platform:dma</module>
+    <module>modm:platform:spi:1</module>
+    <module>modm:processing:protothread</module>
+    <module>modm:processing:timer</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>
diff --git a/examples/nucleo_f767zi/spi_dma/main.cpp b/examples/nucleo_f767zi/spi_dma/main.cpp
@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2021, Raphael Lehmann
+ *
+ * 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 Mosi = GpioOutputB5;
+using Miso = GpioInputB4;
+using Sck = GpioOutputB3;
+using DmaRx = Dma2::Channel0;
+using DmaTx = Dma2::Channel3;
+using Spi = SpiMaster1_Dma<DmaRx, DmaTx>;
+
+class SpiThread : public modm::pt::Protothread
+{
+public:
+
+	bool
+	update()
+	{
+		PT_BEGIN();
+
+		// Enable DMA controller
+		Dma2::enable();
+
+		// Enable and initialize SPI
+		Spi::connect<Mosi::Mosi, Miso::Miso, Sck::Sck>();
+		Spi::initialize<Board::SystemClock, 422_kHz>();
+
+		while (true)
+		{
+			MODM_LOG_INFO << "sendBuffer adress: " << modm::hex << sendBuffer << modm::endl;
+			MODM_LOG_INFO << "receiveBuffer adress: " << modm::hex << receiveBuffer << modm::endl;
+			MODM_LOG_INFO << "Info: 0x20000000 is start of SRAM1" << modm::endl;
+
+			MODM_LOG_INFO << "Before first transfer" << modm::endl;
+
+			// send out 12 bytes, don't care about response
+			PT_CALL(Spi::transfer(sendBuffer, nullptr, 12));
+
+			MODM_LOG_INFO << "After first transfer" << modm::endl;
+
+			// send out 12 bytes, read in 12 bytes
+			PT_CALL(Spi::transfer(sendBuffer, receiveBuffer, 12));
+
+			MODM_LOG_INFO << "After second transfer" << modm::endl << modm::endl;
+
+			timeout.restart(500ms);
+			PT_WAIT_UNTIL(timeout.isExpired());
+		}
+
+		PT_END();
+	}
+
+private:
+	uint8_t sendBuffer[13] { "data to send" };
+	uint8_t receiveBuffer[13];
+	modm::ShortTimeout timeout;
+};
+
+SpiThread spiThread;
+
+int main()
+{
+	Board::initialize();
+
+	MODM_LOG_INFO << "Hello from SPI-DMA example on Nucleo-F767ZI!" << modm::endl;
+
+	while (true)
+	{
+		spiThread.update();
+	}
+
+	return 0;
+}
diff --git a/examples/nucleo_f767zi/spi_dma/project.xml b/examples/nucleo_f767zi/spi_dma/project.xml
@@ -0,0 +1,14 @@
+<library>
+  <extends>modm:nucleo-f767zi</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f767zi/spi_dma</option>
+  </options>
+  <modules>
+    <module>modm:platform:gpio</module>
+    <module>modm:platform:dma</module>
+    <module>modm:platform:spi:1</module>
+    <module>modm:processing:protothread</module>
+    <module>modm:processing:timer</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>