Can anyone help for my first C++ code build and execution on STM32MP1?

[FAuza.1]

Hi, I need help to compile, build and upload a C++ code on an STM32MP157F-DK2 board. Can anyone help me? Thanks

[RomainR.]

Hello @FAuza.1 (Community Member)

I can suggest you to follow the STM32MPU wiki below:

Create a simple hello-world application - stm32mpu

The given example explains a cross compilation of a C code with GTK and its makefile using the stm32mp1-openstlinux Developer-Package.

Then it is transferred and executed on the STM32MP15x-DK2.

For a C++ code, the method is identical.

Thank in advance to select my post as best answer.

Best regards,

Romain,

[FAuza.1]

Thank you Romain

I should have explained that I'm working on Windows 10, and I'd like to use the STM32CubeIDE tool. The example you suggest is on Linux, which I don't have.

What I need is a clear explanation on how to connect the board and to use the STM32CubeIDE software to run a simple code that prints Hello World in a console such as putty or MobaXterm

[RomainR.]

How to connect the board, follow Wiki Getting Started:

STM32MP157x-DK2 - stm32mpu

Developing with STM32CubeIDE on Cortex-M4 in the same wiki (next chapters) in a way very similar to an STM32 MCU:

Develop on Arm® Cortex®-M4 - stm32mpu

It should work under Windows, but using Linux will give you a better experience.

Best regards,

Romain,

[FAuza.1]

Thank you Romain

I have the supply and the ST link connections, do I need the USB OTG connection as well ?

[RomainR.]

You must apply what is documented in Wiki Getting started for your board.

I'm sorry to insist but you should follow this tutorial to the end.

Best regards,

Romain,

[FAuza.1]

Hi Romain

I'm going through the tutorial, and I have a problem at the step "Modify, rebuild and reload a firmware". Everything has gone fine until that point. I have imported and built the firmware, but the CubeIDE does not detect my board.

What I do is:

• connect the board to the computer with the ST-link cable. I can see the ST Link virtual COM port in the device manager.
• power on the board. The red led between the user buttons is blinking. But the board is not detected, status remains "offline" in the IDE lower right corner.

Should I do something on the Boot switches? I tried bith ON and both OFF with no luck.

[RomainR.]

Hello FAuza.1 (Community Member)

It depend if you are trying to load firmware thru Linux (Production mode with Boot2=Boot0=1) or if you are thru JTAG/SWD (Engineering mode with Boot2=1; Boot0 = 0) ?

Here below videos that will help you, in particular part 03 How to debug M4 in engineering mode with STM32CubeIDE.

https://www.youtube.com/playlist?list=PLnMKNibPkDnFp5YvrvWjgfjrOs0Vi34Mt

Best regards

Romain

[FAuza.1]

Thanks. I managed to load a firmware.