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

Question asked by Vanjeeswaran.Suraj on Apr 10, 2017

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