BOOST-DRV8711: DRV8711 stall check

Part Number:BOOST-DRV8711

Hi ALL:

    now I am debugging the stall function of  the DRV8711,I  have configued the STALL Register with  the value of

  SDTHR  = 0x70,SDCNT = 0x03,VDIV = 0x01;when the stepper motor just begin  to run and the DRV8711 have checked the motor stall,so I have adjusted the   STALL Register with  the value of

  SDTHR  = 0x6F,SDCNT = 0x03,VDIV = 0x01;and then  when the motor is  in a stalled state but the DRV8711 don't detect  the stall, 

now I  don't konow how to resolve the question!