You can build it by pressing Ctrl-Shift-B: If VisualGDB suggests installing the WinUSB driver, proceed with it: On the next page select OpenOCD as the debug method, connect your board, press “detect” and “test selected OpenOCD settings”.On the next page proceed with the default LEDBlink sample and specify the LED port according to the STM32-Nucleo-F411RE schematics:.If it is not available, click “download support for more devices”: Select the STM32F411RE device from the device list.If it is not present, VisualGDB will download it automatically: On then next page select the ARM toolchain.Proceed with the default “binary” settings on the first page:.Select File->New->Project and select the Embedded Project Wizard from the VisualGDB wizards. We will create a simple ‘blinking LED’ project, build it, step through it in debugger and use the Code Map to visualize the structure of the HAL library. You will need the following hardware and software to follow this tutorial: cpp file has access to the generated #define symbols.This tutorial shows how to create a simple project for the STM32-Nucleo-F411RE board with Visual Studio. In addition, since the main.c file include main.h, your. cpp file has access to all of the variables declared there. Since the main.c file is included at the top of the file, the. All of the generated initialization code is still run properly and is run before your new mainCpp function is called. Your two changes will be preserved since they are in the user code area. You can now make config changes and let the system regenerate the main.c file. Make any other code changes in your MainCpp.cpp file. In the dialog, click on Select All, and then OK. From the popup menu, select Resource Configurations -> Exclude from Build. In the project explorer, right click on the main.c file. In the MainCpp.cpp file, add the new “main”ĥ. Modify the “infinite loop” section to just call main.cpp:Ĥ. In the generated main.c file, do the following:ģ.b. Make your project a C++ project either in the initial configuration or by converting it.Ģ. I hope this helps! I know that I’m looking forward to using C++ libraries in my STM32 project. If you right-click on any C++ project, you’ll find that you can revert it back to a C project using a similar method. You will then need to rename any source files (to. If you are already working within a C project and you wish to convert it to C++, right-click on the project name in the project explorer pane and click Convert to C++. You will need to add extern “C” to your functions, which is detailed in this article. Please note that you can generally call C functions from within a C++ program and vice versa. That’s it! You should be ready to build your STM32 project in C++ with all of the object-oriented programming you so desire. Click Run > Resume, and you should see the LED begin to blink. Accept any prompts you might see to open the debug perspective. cc files get automatically built with g++.Ĭlick Run > Debug and click OK to accept the default launch configuration properties. Most of the STM32 HAL libraries are written in C, but they’re safe to call in C++. In case you are wondering: yes, this is still C inside of a C++ file. If you’re using a Nucleo-64, the labels will be LD2_GPIO_Port and LD2_Pin. Note that the GPIO port and pin names might be different for your board. In context of the rest of the source code, this should look something like: Scroll down to the while (1) loop and add the following code just inside the while (1) loop: HAL_GPIO_TogglePin(LD3_GPIO_Port, LD3_Pin) Open the main.cpp file associated with the project. The compiler is sensitive to file suffixes, so. Right click on > Core > Src > main.c and select Rename. However, CubeMX generates a main.c file, which is not what we want for a C++ project. Leave everything as default on the CubeMX device configuration GUI.Ĭode should be automatically generated. In Targeted Language, select C++.Ĭlick Finish and click Yes when asked, “Initialize all peripherals with their default Mode?” Click Yes to open the new perspective. I like to prefix the board I’m using to the project name, so nucleo-l432-cpp-blinky is what I called mine. Select your target microcontroller or board (I’ll select my Nucleo-L432KC).Ĭlick Next and then give your project a name. Start STM32CubeIDE and select File > New > STM32 Project. You are welcome to use any STM32 part, but I generally recommend starting out with one of the Nucleo boards. I will use an ST Nucleo-L432KC for this demonstration, as it’s small, fits on a breadboard, and still has a powerful ARM Cortex-M4 core. In this tutorial, I will show you how to get started making a program (blinky) for an STM32 microcontroller using C++ on STM32CubeIDE. While C may be the preferred language of many embedded programmers, C++ does have a place, especially if you want to use certain libraries, like TensorFlow Lite for Microcontrollers.
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