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Stepper motor control

 
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rnielsen



Joined: 23 Sep 2003
Posts: 852
Location: Utah

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Stepper motor control
PostPosted: Wed Apr 14, 2004 12:11 pm     Reply with quote
Greetings!

I am controlling a servo motor, using a servo driver, and using Step and Direction pulses. I am using Timer0, in 16 bit mode, to pulse the Step output. I am modifying the Timer0 counter values (TMR0H and TMR0L) to vary the frequency of the pulses. I am wondering if anybody here knows of some kind of code to ramp the frequency up and down to start and stop the motor.

I'm using a PIC18F452.

Thank you,
Ronald
dave austin
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Stepper motor control
PostPosted: Tue Mar 22, 2005 5:19 am     Reply with quote
This article shows how to generate stepper motor speed ramps.
There is a listing for PIC18F252:

http://www.embedded.com/shared/printableArticle.jhtml?articleID=56800129
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