7 years, 5 months ago.

How to use external crystal or MSO (HSE) on nucleo F303K8 ?

I'd like to use an external oscillator with F303K8 for accurate communication. However, in the mbed library v111 15W51 it says that the external oscillator code was removed.

https://developer.mbed.org/teams/ST/wiki/SDK-changes-log

Even if the external 8MHz oscillator was connected to PF0, the core clock checked with the following code was 64 MHz

Printf ("CPU SystemCoreClock is% d Hz \ r \ n", SystemCoreClock);

Is there a way to use an external oscillator?

1 Answer

7 years, 1 month ago.

Please refer following notebook.
/users/kenjiArai/notebook/nucleo-f303k8-hse-clock/