I have been trying for hours to upload code to the STM32-N6 and I am simply out of ideas. I only managed to upload debug code to RAM once, then I tried erasing the flash on the PCB using STM32CubeProgrammer (which worked, the standard code is not on there anymore) but now I cannot even use the debug option. Every time I try to upload code (I tried all BOOT pin combinations) it simply doesn't work. sometimes it has a timeout while trying to connect and really often I get the following output:
Starting server with the following options:
Persistent Mode : Disabled
Logging Level : 1
Listen Port Number : 7184
Status Refresh Delay : 15s
Verbose Mode : Disabled
SWD Debug : Enabled
InitWhile : Enabled
Info : default port : 7184
Info : Remote address: 127.0.0.1
Info : stlinkserver already running, exit
Target unknown error 32
Error in initializing ST-LINK device.
Reason: Unknown. Please check power and cabling to target.
I am using the 5V_STLK header connection for power. Right now, I cannot do anything with it anymore. not even running in dev mode works. Could the STM32N6 have gotten bricked when I tried to erase its flash? do I need an external ST-Link programmer to try and fix this?
I should also mention that, when trying to upload the firmware to the ST-Link, it failed multiple times before finally working (this was before the RAM loading worked the first time) and after that last time, I was able to upload the firmware 2 times with no problems.
I even tried using a converter between the controller and my laptop just in case the USB protocol was too fast or my laptop did anything weird with newer USB protocols.
System:
Apple Macbook Pro M4 with MacOS 26.2
STM32CubeMX v6.16.1
STM32CubeIDE v2.0.0
STM32CubeProgrammer v2.21.0
