[example] Add BMI088 I2C example for Nucleo H723ZG

Author: chris-durand

examples/nucleo_h723zg/bmi088/i2c/main.cpp

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+/*
+ * Copyright (c) 2023, Christopher Durand
+ *
+ * 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/driver/inertial/bmi088.hpp>
+
+#include <modm/board.hpp>
+#include <atomic>
+
+using namespace Board;
+
+using I2c = I2cMaster1;
+using Scl = GpioB8;  // D15
+using Sda = GpioB9;  // D14
+
+using AccInt1 = GpioC6;
+using GyroInt3 = GpioB15;
+
+using Transport = modm::Bmi088I2cTransport<I2c>;
+using Imu = modm::Bmi088<Transport>;
+
+constexpr uint8_t AccAddress = 0x18;
+constexpr uint8_t GyroAddress = 0x68;
+Imu imu{AccAddress, GyroAddress};
+
+void initializeImu()
+{
+	AccInt1::setInput(AccInt1::InputType::PullDown);
+	GyroInt3::setInput(GyroInt3::InputType::PullDown);
+
+	constexpr bool selfTest = true;
+	while (!imu.initialize(selfTest)) {
+		MODM_LOG_ERROR << "Initialization failed, retrying ...\n";
+		modm::delay(500ms);
+	}
+
+	bool ok = imu.setAccRate(Imu::AccRate::Rate12Hz_Bw5Hz);
+	ok &= imu.setAccRange(Imu::AccRange::Range3g);
+
+	const auto int1Config = (Imu::AccGpioConfig::ActiveHigh | Imu::AccGpioConfig::EnableOutput);
+	ok &= imu.setAccInt1GpioConfig(int1Config);
+	ok &= imu.setAccGpioMap(Imu::AccGpioMap::Int1DataReady);
+
+	ok &= imu.setGyroRate(Imu::GyroRate::Rate100Hz_Bw12Hz);
+	ok &= imu.setGyroRange(Imu::GyroRange::Range250dps);
+	ok &= imu.setGyroGpioConfig(Imu::GyroGpioConfig::Int3ActiveHigh);
+	ok &= imu.setGyroGpioMap(Imu::GyroGpioMap::Int3DataReady);
+
+	if (!ok) {
+		MODM_LOG_ERROR << "Configuration failed!\n";
+	}
+}
+
+int main()
+{
+	Board::initialize();
+	Leds::setOutput();
+	I2c::connect<Scl::Scl, Sda::Sda>(I2c::PullUps::Internal);
+	I2c::initialize<Board::SystemClock, 100_kHz, 10_pct>();
+
+	MODM_LOG_INFO << "BMI088 I2C Test\n";
+	initializeImu();
+
+	std::atomic_bool accReady = false;
+	std::atomic_bool gyroReady = false;
+
+	Exti::connect<AccInt1>(Exti::Trigger::RisingEdge, [&accReady](auto){
+		accReady = true;
+	});
+
+	Exti::connect<GyroInt3>(Exti::Trigger::RisingEdge, [&gyroReady](auto){
+		gyroReady = true;
+	});
+
+	while (true)
+	{
+		while(!accReady or !gyroReady);
+
+		const std::optional accResult = imu.readAccData();
+		accReady = false;
+		const std::optional gyroResult = imu.readGyroData();
+		gyroReady = false;
+
+		if (accResult) {
+			const modm::Vector3f data = accResult->getFloat();
+			MODM_LOG_INFO.printf("Acc  [mg]\tx:\t%5.1f\ty: %5.1f\tz: %5.1f\n", data[0], data[1], data[2]);
+		}
+		if (gyroResult) {
+			const modm::Vector3f data = gyroResult->getFloat();
+			MODM_LOG_INFO.printf("Gyro [deg/s]\tx:\t%5.2f\ty: %5.2f\tz: %5.2f\n", data[0], data[1], data[2]);
+		}
+	}
+
+	return 0;
+}

examples/nucleo_h723zg/bmi088/i2c/project.xml

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+<library>
+  <extends>modm:nucleo-h723zg</extends>
+  <options>
+    <option name="modm:build:build.path">../../../../build/nucleo_h723zg/bmi088_i2c</option>
+    <option name="modm:processing:protothread:use_fiber">yes</option>
+  </options>
+  <modules>
+    <module>modm:build:scons</module>
+    <module>modm:processing:fiber</module>
+    <module>modm:platform:exti</module>
+    <module>modm:platform:i2c:1</module>
+    <module>modm:driver:bmi088</module>
+  </modules>
+</library>