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echelon2010
Associate II
October 15, 2015
Question

Clocking RTC from HSE

  • October 15, 2015
  • 1 reply
  • 470 views
Posted on October 15, 2015 at 15:17

Hello. I use STM32F429 controller with 12MHz HSE oscillator. Is it posible to clock RTC from HSE while controller supplied from VBAT pin only?

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    1 reply

    waclawek.jan
    Super User
    October 15, 2015
    Posted on October 15, 2015 at 15:25

    No. Only LSE is in the VBAT power domain. Read PWR chapter in RM.

    JW