If I use a short 4-cycle loop for pin-toggle with the clock setting =600MHz I can verify this frequency with very good accuracy. If I us a 4-cycle pin toggle loop with 24 MHz clock setting I measure a loop frequency of approx. 7.5MHz. That would suggest that the cpu runs at 30MHz. That is quite a bit off from 24MHz. Has someone of you made a similar observation? Wich accuracy of the different clocks can I expect?
Teensy 4.0 accuracy of 24MHz clock
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