Hi Rick,
Sorry I only have one 2 channels scope, although I measured the voltage from one channel, but I would check the nFAULT register to ensure the fault occurs on this channel.
Here are latest measurement with constant speed, and they were in two cases(error channel or normal channel):
Occurs with fault:
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Indicate anthoer channel occurs with fault:
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I tested times, and the scope shows simillar result. If the problem is not casued by spike, so what would it be, do the waveforms could show the problem?
Thanks.
Zheng Liang