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Thread: Teensy 4 IP Bus Clock

  1. #1
    Junior Member
    Join Date
    Jan 2020

    Teensy 4 IP Bus Clock

    I'm trying to determine the frequency of the "IP bus clock" and whether it's scalable. IntervalTimer code suggests it's 24Mhz. I've searched through the processor reference manual and forums and find a lot of references to modules being clocked by the IP bus clock, but no direct discussion of the details of the bus clock. Thanks.

  2. #2
    Senior Member+ defragster's Avatar
    Join Date
    Feb 2015
    Try the sketch here by mjs513 - it exposes the clock values on T4: Teensy-4-0-Clock-speed-influences-delay-and-SPI

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