Stm32h746 dual core debugging

[Jpj.1]

I am working with stm32h745ZIT3, in my application I need to receive some packets over ethernet in CM7 and these packets need to share to CM4, and processing is done in CM4.

So, to test this data transfer I need to debug both cores simultaneously. Tried changing the debug properties as download option disabled for cm4 and add cm4 to cm7s list. and then tried to debug cm7 and then debug cm4, but cm4 shows as no ST detected.

Also, port number changed for both. Is there anything I am missing? please guide me. 

Power: LDO

[Imen.D]

Hello @Jpj.1 ,

To configure the debugger on STM32H7 dual core, I advise you refer to these tutorials:

• Video: Dual Core Debugging on STM32H7 with STM32CubeIDE
• How to implement inter-processor communication in ... - STMicroelectronics Community

You can also use these application notes as a reference for CM7 and CM4 project configuration :

• AN5286: STM32H7x5/x7 dual-core microcontroller debugging - Application note.

• AN5361 Getting started with projects based on dual-core STM32H7 microcontrollers in STM32CubeIDE.

[Imen.D]

• AN5361 Getting started with projects based on dual-core STM32H7 microcontrollers in STM32CubeIDE.