add RTC and use HSE if possible#60

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gkuznik wants to merge 8 commits into

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Commits on May 21, 2026

add RTC

gkuznik
authored and
Gabriel Kuznik
committed
expose RTC backup registers

gkuznik
authored and
Gabriel Kuznik
committed
add error handling
Gabriel Kuznik
committed
move rtc into driver
Gabriel Kuznik
committed
hal CSS part for LSE
Gabriel Kuznik
committed

Commits on May 28, 2026

move error handling into HAL
Gabriel Kuznik
committed
actually register CSS lSE interrupt handler
Gabriel Kuznik
committed

Commits on Jun 11, 2026

HSE and LSE handling
Gabriel Kuznik
committed