Here's an issue from the customer may need your help:
When using the DRV8834 to control the stepper motor, the indexer mode of 8834 is required (16 microsteps are used simultaneously). In addition, the peak of the output current needs to be dynamically adjusted, for example, sometimes a peak of 0.7A or sometimes a peak of 1A. Here's 2 questions:
1. The customer would like to know If AVREF and BVREF are needed to be connected to a fixed voltage (such as VREFO-2.5 V) in indexer mode, is this voltage used as a reference source for the internal DAC?
2. Continuing with 1, if so, how to dynamically adjust the peak of the stepper motor winding current in indexer mode?
Could you help check this case? Thanks.