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truhann
truhann
Associate
November 27, 2014
Question

STM32F4 & Ethernet configuration (RMII)

  • November 27, 2014
  • 1 reply
  • 963 views
Posted on November 27, 2014 at 11:25

Good day,

Given you use the RMII interface to the STM32F4 MCU does anybody know what the CR (clock range) needs to be configured to?  The RMA is not clear if the clock range configuration is for the MII interface only.  Configuring it as the RMA suggest for the RMII interface breaks my driver.

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    1 reply

    waclawek.jan
    waclawek.jan
    Super User
    November 27, 2014
    Posted on November 27, 2014 at 11:38

    You mean in ETH_MACMIIAR?

    It's the management port's (i.e. MDC) clock, and the management port is the same for both MII and RMII.

    JW

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