I would like to give external oscillators (TCXO, VCXO, etc) a try as HSE but can't find any diagram or documentation about it regarding STM32(F427).
Could you please help with these three questions :
- OSC_IN connected to oscillator output, OSC_OUT left floating ?
- Is adding the HSE_BYPASS flag to the HSE register during startup the only required software change ?
- Can the oscillator start before the STM32 ? or should its startup be controlled by the STM32 ?
Thank you !