[example] Add BdSpiStackFlash test

examples/nucleo_f429zi/spistack_flash/main.cpp

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+/*
+ * Copyright (c) 2023, Rasmus Kleist Hørlyck Sørensen
+ *
+ * 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/driver/storage/block_device_spiflash.hpp>
+#include <modm/driver/storage/block_device_spistack_flash.hpp>
+
+using namespace Board;
+
+void printMemoryContent(const uint8_t* address, std::size_t size) {
+	for (std::size_t i = 0; i < size; i++) {
+		MODM_LOG_INFO.printf("%x", address[i]);
+	}
+}
+
+using SpiMaster = SpiMaster1;
+
+// Spi flash chip wiring:
+using Cs = GpioA4;
+using Mosi = GpioB5;
+using Miso = GpioB4;
+using Sck = GpioB3;
+// Connect WP and HOLD pins to +3V3
+// and of course Vdd to +3V3 and Vss to GND
+
+
+constexpr uint32_t BlockSize = 256;
+constexpr uint32_t DieSize = 32*1024*1024;
+constexpr uint32_t DieCount = 2;
+constexpr uint32_t MemorySize = DieCount * DieSize;
+constexpr uint32_t TestMemorySize = 4*1024;
+constexpr uint32_t TestMemoryAddress[] = {0, DieSize - TestMemorySize, DieSize, MemorySize - TestMemorySize};
+
+uint8_t bufferA[BlockSize];
+uint8_t bufferB[BlockSize];
+uint8_t bufferC[BlockSize];
+
+using BdSpiFlash = modm::BdSpiFlash<SpiMaster, Cs, DieSize>;
+using BdSpiStackFlash = modm::BdSpiStackFlash<BdSpiFlash, DieCount>;
+
+BdSpiFlash storageDevice;
+BdSpiStackFlash storageDeviceStack;
+
+void doMemoryTest()
+{
+	LedBlue::set();
+	MODM_LOG_INFO << "Starting memory test!" << modm::endl;
+
+		for(uint16_t iteration = 0; iteration < 4; iteration++) {
+
+		for(const uint32_t address : TestMemoryAddress) {
+
+			auto dv = std::ldiv(address, DieSize);
+			uint8_t* pattern = (iteration % 2 == dv.quot) ? bufferA : bufferB;
+			if(!RF_CALL_BLOCKING(storageDeviceStack.erase(address, TestMemorySize))) {
+				MODM_LOG_INFO << "Error: Unable to erase device.";
+				return;
+			}
+
+			for(uint32_t i = 0; i < TestMemorySize; i += BlockSize) {
+				if(!RF_CALL_BLOCKING(storageDeviceStack.program(pattern, address + i, BlockSize))) {
+					MODM_LOG_INFO << "Error: Unable to write data.";
+					return;
+				}
+				MODM_LOG_INFO << ".";
+			}
+		}
+
+		for(const uint32_t address : TestMemoryAddress) {
+
+			auto dv = std::ldiv(address, DieSize);
+			uint8_t* pattern = (iteration % 2 == dv.quot) ? bufferA : bufferB;
+			for(uint32_t i = 0; i < TestMemorySize; i += BlockSize) {
+				if(!RF_CALL_BLOCKING(storageDeviceStack.read(bufferC, address + i, BlockSize))) {
+					MODM_LOG_INFO << "Error: Unable to read data.";
+					return;
+				}
+				else if(std::memcmp(pattern, bufferC, BlockSize)) {
+					MODM_LOG_INFO << "i=" << i << modm::endl;
+					MODM_LOG_INFO << "Error: Read '";
+					printMemoryContent(bufferC, BlockSize);
+					MODM_LOG_INFO << "', expected: '";
+					printMemoryContent(pattern, BlockSize);
+					MODM_LOG_INFO << "'." << modm::endl;
+					return;
+				}
+			}
+		}
+
+		MODM_LOG_INFO << "." << modm::endl;
+	}
+
+	MODM_LOG_INFO << modm::endl << "Finished!" << modm::endl;
+	LedBlue::reset();
+}
+
+int
+main()
+{
+	/**
+	 * This example/test writes alternating patterns to a 256 MBit
+	 * stacked die flash chip (W25M512VJ) attached to SPI0 using the
+	 * `modm::BdSpiStackFlash` block device interface.
+	 * The memory content is afterwards read and compared
+	 * to the pattern.
+	 * Write and read operations are done on 64 byte blocks.
+	 *
+	 * See above for how to wire the flash chip.
+	 */
+
+	// initialize board and SPI
+	Board::initialize();
+	SpiMaster::connect<Mosi::Mosi, Miso::Miso, Sck::Sck>();
+	SpiMaster::initialize<Board::SystemClock, 11_MHz>();
+
+	std::memset(bufferA, 0xAA, BlockSize);
+	std::memset(bufferB, 0x55, BlockSize);
+
+	bool initializeSuccess = false;
+	if (RF_CALL_BLOCKING(storageDeviceStack.initialize())) {
+		MODM_LOG_INFO << "Erasing complete flash chip... (This may take a while)" << modm::endl;
+		if (RF_CALL_BLOCKING(storageDeviceStack.erase(0, MemorySize))) {
+			RF_CALL_BLOCKING(storageDeviceStack.waitWhileBusy());
+			initializeSuccess = true;
+		} else {
+			MODM_LOG_INFO << "Error: Unable to erase device.";
+		}
+	} else {
+		MODM_LOG_INFO << "Error: Unable to initialize device.";
+	}
+
+	if (initializeSuccess) {
+		auto id = RF_CALL_BLOCKING(storageDevice.readId());
+		MODM_LOG_INFO << "deviceId=" << id.deviceId << " manufacturerId=" << id.manufacturerId;
+		MODM_LOG_INFO << "deviceType=" << id.deviceType << modm::endl;
+		MODM_LOG_INFO << "status=" << static_cast<uint8_t>(RF_CALL_BLOCKING(storageDevice.readStatus())) << modm::endl;
+		MODM_LOG_INFO << "Press USER button to start the memory test." << modm::endl;
+	}
+
+	while (true)
+	{
+		if(initializeSuccess && Button::read())
+		{
+			doMemoryTest();
+		}
+	}
+
+	return 0;
+}

examples/nucleo_f429zi/spistack_flash/project.xml

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+<library>
+  <extends>modm:nucleo-f429zi</extends>
+  <options>
+    <option name="modm:build:build.path">../../../build/nucleo_f429zi/spistack_flash</option>
+  </options>
+  <modules>
+    <module>modm:driver:block.device:spi.flash</module>
+    <module>modm:driver:block.device:spi.stack.flash</module>
+    <module>modm:platform:spi:1</module>
+    <module>modm:build:scons</module>
+  </modules>
+</library>