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Need Help in setting PWM to control stepper motor on stm32f469NI-eval board

Suraj Vanjeeswaran
Associate II

‎2017-04-10 06:30 AM

Posted on April 10, 2017 at 15:30

Hi all,

I am trying to control stepper motor using PWM on STM32F469NI-eval board.

For debugging purpose,I have connected a led to step pin which glows indicating that the step pin is supplying the pwm output, But my stepper motor does not rotate.I am attaching a copy of my code along with block diagram of circuit used in our application.Somebody please help me with this.

Hardware Used:-

STM32F469NI-Eval Board

A988A-Pololu Stepper Driver

12V/30A External Power Supply

Nema 17 Bipolar Bholanath Stepper Motor

Software Used:-

Keil IDE with STM32CubeMx Code initializer

STM32 ST-Link V2  utility for flashing code onto STM32F4 micro-controller

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