"I guess you don't have a..." <- I made some progress, I found that my STM32 is crashing at https://github.com/stm32-rs/stm32h7xx-hal/blob/master/src/pwr.rs#L487-L492 ```rust // Verify supply configuration, panics if these values read // from CR3 do not match those written. #[cfg(feature = "smps")] self.verify_supply_configuration(); // Validate the supply configuration. If you are stuck here, it is // because the voltages on your board do not match those specified // in the D3CR.VOS and CR3.SDLEVEL fields. By default after reset // VOS = Scale 3, so check that the voltage on the VCAP pins = // 1.0V. while self.rb.csr1.read().actvosrdy().bit_is_clear() {} ```