** [https://www.dave.eu/sites/default/files/files/axel-ulite-hm.pdf#page=50 SPI2]
** [https://www.dave.eu/sites/default/files/files/axel-ulite-hm.pdf#page=51 SPI3]
* [[Real-time_clock_options_(SBC_Lynx) /Peripherals/Real_Time_Clock | Real Time Clock ]]
* [[/Peripherals/Watchdog | Watchdog]]
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