use stepper motor as servo

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A4954 Dual Full-Bridge DMOS PWM Motor Driver
Features and Benefits
• Low RDS(on) outputs
• Overcurrent protection (OCP)
▫ Motor short protection
▫ Motor lead short to ground protection
▫ Motor lead short to battery protection
• Low Power Standby mode
• Adjustable PWM current limit
• Synchronous rectification
• Internal undervoltage lockout (UVLO)
• Crossover-current protection

A4954-Datasheet.pdf

New Bitmap Image (14).bmp

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Board-Diagram.png

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The TMC4671 is a fully integrated servo controller, providing Field Oriented Control for BLDC/PMSM and 2-phase Stepper Motors as well as DC motors and voice coils. All control functions are implemented in hardware. Integrated ADCs, position sensor interfaces, position interpolators, enable a fully functional servo controller for a wide range of servo applications.
Special Features
closed loop controlFOCposition modevelocity modedual encoder

csm_TMC4671-ES_ebc2079825.jpg

[kb1gtt]

Steppers are week, slow and 2A of drive is not very much. I dream of a DC motor with lots of amps which accepts the typical step and direction signals that are commonly sent to a stepper. See Stervo linked below.

https://rusefi.com/forum/viewtopic.php?f=13&t=1199

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@russian want BMW ETB which has 2 Stepper motor and 2 potenciometro inSide ...
the next step is to get feedback from potenciometro (if software is ready ) ...