Solved
I got the feeling that the "stm32u5xx.svd" file for U5 isn't correct. The OTG_FS peripheral is declared in this file at address 0x4203 8000, while reference manual and actual code lend me to think this should be 0x4204 0000.
..
..
Hello @robertbocquier9 ,
Please find attached the new SVD file with fix.
The package will be available soon in the ST web page.
Thank you once more for your contribution.
Imen
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.