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AM2434: EnDat Propagation Delay depends on PRU Clock

Part Number: AM2434

Hi experts,

i found the following strange behaviour concerning the EnDat Propagation Delay Measurement.

  • Motor Control SDK 11.00.00.06
  • EnDat Diagnostic Example, multichannel (0+2), loadshare

In the example, the PRU core clock is set to 200Mhz. Then i get the following propagation delay measurements from the EnDat PRU firmware:

  • Channel0: 95ns
  • Channel2: 115ns

When i change the PRU core clock to 300Mhz, the measurements change:

  • Channel0: 115ns
  • Channel2: 130ns

Is this behaviour expected?

Best Regards,
Stefan Schlee