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JBalc.1
Visitor II
January 16, 2023
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STM32MP157FAA1 DDR HARDWARE

  • January 16, 2023
  • 2 replies
  • 1052 views

Welcome,

why for STM32MP157FAA1 at "STM32MP1 Series DDR memory routing guidelines examples" there is no terminating resistors?

    This topic has been closed for replies.
    Best answer by PatrickF

    Hi @JBalc.1​ 

    The example STM32MP15XXAA_1DDR3Lx16 target DDR3L x16 where termination resistors are optional (single memory, addresses/commands are point to point, short wires).

    Regards

    In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

    2 replies

    O
    OlivierK
    Technical Moderator
    January 17, 2023

    Hi JBalc.1 (Community Member)

    More on this topic:

    https://community.st.com/s/article/FAQ-STM32MP1-What-ST-offers-to-make-a-PCB-design-that-ensures-signal-integrity

    Altium table length (provided in Altium projects) gives also the length to terminating resistor.

    I hope this clarifies.

    Rgds,

    Olivier

    P
    PatrickFAnswer
    Technical Moderator
    January 18, 2023

    Hi @JBalc.1​ 

    The example STM32MP15XXAA_1DDR3Lx16 target DDR3L x16 where termination resistors are optional (single memory, addresses/commands are point to point, short wires).

    Regards

    In order to give better visibility on the answered topics, please click on 'Select as Best' on the reply which solved your issue or answered your question. See also 'Best Answers'

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