Trying to run a blinking LED on STM32H755ZI-Q

[William133467]

Hi,

am new to STM32 and i am trying to configurate my Nucleo but i don't understand my problem i am trying to setup a basic blink code with the basic structure (serial port communication with putty , debugger stlinkv3 and communication between cores but i can manage to ger it right thank you for any help or advises)

my problem is i cant manage to setup a basic ioc files configuration  for my stm32h755zi-q in the stmcubeide 1.18 i have a basic blink code using both core that work but when i try to setup whit other clock parameters configuration i cant manage to start the program (stlink v3 on the bord look like i cant connect)

[William133467]

the program work i can flash it and run it 
but in the debuger i get this error

i am using the debug config of " Getting started with projects based on dual-core STM32H7 microcontrollers
in STM32CubeIDE"
and launching a launc group

edit
add code

[mƎALLEm]

Hello,

This was not the project I've attached previously. Your project doesn't compile. 

So need to use the project I have attached and confirm if it is working or not. Then use it as a base project.

[William133467]

Reason: (255) Unknown. Please check power and cabling to target.

i again click resolve by accident but i can only run on core at the time in the debug
else the program work

[mƎALLEm]

If my project has the same issue. It's definitely a hardware issue on your board. Did you modify something on the board? a solder bridge? etc ..?

Try to connect with CubeProgrammer and tell us what do you find?

[William133467]

no i baugt it from mouser electronic and keep all the original setting, solder bridge and place foam on the under pins at the buttom to protect from shorts
i am not sure what are the thig you want me to show you are those resonable
also i try the debug usig your config and the config from Getting started with projects based on dual-core STM32H7 microcontrollers
in STM32CubeIDE

[mƎALLEm]

Please forget about the "Getting started with projects based on dual-core STM32H7 microcontrollers" for the moment.

As you are able to connect with CubeProgrammer there is no issue in the HW.

With the project I shared, please:

1-  Upload the CM7 project to the MCU.

2- Upload the CM4 project to the MCU.

3- Detach the USB cable and reconnect it again.

Do you have a toggling LEDs or not?

[William133467]

yes in the run(not debug it is working fine only debug dont work )

thank you for all your help it is really appreciated 

[mƎALLEm]

Ok. So your issue is in debug and not in standalone. So it's another question.

So please accept as solution the comment that answered your question.

If you need to ask a question about the dual core debug, open a new thread in STM32CubeIDE forum board.

[mƎALLEm]

@William133467 I've changed the marking of the solution to be closest answer to your original question.

Thank you