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DRV8711: DRV8711 problems

Part Number: DRV8711

Hi team,

When using the DRV8711, we meet two problems:

1. always meet APdf or Bpdf, do you know why?

2.because the BEMF is large, when the speed become higher, the waveform become bad. Do we have some suggestions to keep the current waveform sin?

The configuration is below:

00h 3129d;

01h 18d;

02h 25d;

03h 80d;

04h 528d;

05h 64d;

06h 2654;

Thank you.