DRV8434S: High speed cannot drive the motor

Hi team,

Here's an issue may need your help:

Use DRV8434S as stepper motor drive unit. The motor starts jitter and does not spin after 440 rpm, the step frequency is 6410HZ, 1/4 microstepping, and the oscilloscope tests the DRV8434S waveforms as normal,  the schematic is as below:

Could you help check this case? Thanks.

Best Regards,

Cherry