doubts about APB1, APB2 and system clock

[ep.hobbyiest]

hi,

I m using stm32f303xx processor and chibios. I confured 80MHz in chibios config file. But now i saw that processor support upto 72Mhz it seems.
i have doubt that what will be clock frequency then for APB1, APB2 and system clock?

[Giovanni]

Hi,

It is the system clock divided by a number as configured in mcuconf.h, all dividers are there in the clocks section. See PPRE1 and PPRE2.

Giovanni