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DRV8711: DRV8711 nfault after sets full-scale output current

Part Number: DRV8711

Tool/software:

Dears,

    The customer used DRV8711 to drive the stepper motor for 2000 steps and then slowed down and stopped normally. At the end, sets full-scale output current  (TORQUE register set to 0x20)  .After about 5 seconds, nfault occurred and the status register was read as 0xFF.