Clock change in the sbsfu application

[Istillaga]

Hello,

I am using the stm32u5 SBSFU application and I am trying to implement my own 64 MHz clock. But when I change it from 160 Mhz to 64 Mhz the application does not work. Can the SBSFU clock work with less than 160 MHz or does it have to work only with that frequency?

[CMYL]

Hi @Istillaga 

In non-secure application project you changed the system clock from 160 Mhz to 64 Mhz, then the application doesn't work.

Can you clarify what is the issue ? for example nothing is displayed by tera-term or you get a hardfault  .....

best regards

[Istillaga · Accepted solution]

I have fixed the problem. The problem was that I had deleted HAL_RCC_DEINIT so the program was not working.