Hello,
I have been testing a custom board using the STM32F767ZI/VI for the last two weeks, and most things have been going well. I ran into an issue using CAN on the VI for some reason so I decided to switch to the ZI, and things were working well until I realized that it was not using the 8MHz HSE, but the 16MHz HSI instead because of the process of elimination it goes through to select a clock. After forcing it to use the HSE, mbed os crashes, saying SetSysClock failed. I believe the HSE setup is timing out, because I increased the timeout value from 100ms to 5000ms, and now it just takes 5 seconds to crash instead of right away. The crystal (NX3225GD-8MHZ-STD-CRA-3) is connected close to the chip with two 4.3pF load capacitors. This was copied from the NUCLEO-F767ZI board. Any ideas as to why this might be happening? Any help is greatly appreciated, especially seeing as how I'm on a time limit. Thanks!
