trezor/trezor-hardware

External oscillator

Isawwad opened this issue · 2 comments

Isawwad commented

You are using external oscillator because The USB OTG full-speed controller requires a dedicated 48 MHz clock that is generated by a PLL connected to the HSE oscillator.

is there any need or advantages from using external oscillator rather than internal one in stm32F20xx or its just the USB??

prusnak commented

Just the USB

Isawwad commented

thank you sir