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  1. Thank you all for those very insightful comments!...

    Thank you all for those very insightful comments!
    Setting the LOAD parameter does in deed synchronize the timers for me.
  2. Thank you for taking the time. That is an...

    Thank you for taking the time. That is an interesting thought....
  3. Update 2

    I found that this is not related in any way to the cascading of the timers. If I only use the lower 16 bits and do the upper 48 bits in software, I get the same results. I.e Qtimers 1-3 have...
  4. Update: QTimer4 always loses 24000 counts exactly...

    Update: QTimer4 always loses 24000 counts exactly at a time. This is surely significant, but I am not sure how.
  5. Teensy4 QuadTimer4 losing counts while 1-3 work fine

    I have cascaded the 4 quadTimers into 4 64-bit counters for external clocks. I found that this works fine for timers 1-3 but 4 loses counts.

    Symptoms and what I have tried:
    - I feed all 4 timers...
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