[STM32F769] Lost debugger com

[JLoye.1]

Since the initial configuration, the communication between Cube and the STM32F769 board has been OK.

As I had a problem with the SDRAM configuration, I tried to solve the GPIO conflicts listed in the IOC.

After a modification (I don't know which one) (I suspect an USB_OTG...), the following message appears when I start a debug session:

Error in final launch sequence.
Failed to execute MI command
target remote localhost:61234
Error message from debugger back end:
Remote communication error: Target
disconnected : communication réinitialisée par
le correspondant (in French)

Last log lines are:

Starting server with the following options:
       Persistent Mode           : Disabled
       Logging Level             : 1
       Listen Port Number        : 61234
       Status Refresh Delay      : 15s
       Verbose Mode              : Disabled
       SWD Debug                 : Enabled
 
Waiting for debugger connection...
Debugger connected
Waiting for debugger connection...
Shutting down...
Exit

I tried to rebuild a working previous version but I cannot download it as the link is broken.

Is there a way to repair the connection ?

Thanks for your help

[Simon V.]

Hello,

Please check GPIO relative to debugger connection : SWDIO - PA13 and SWCLK PA14

Regards,

Simon