Technical discussions about Freescale Microcontrollers: M68HC11. (Freescale Semiconductor is a Subsidiary of Motorola).
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Given that a few participants here have brought up the topic of stepper motor control, I thought I'd offer a bit of info that I personally (as a stepper-motor 'newbie') found very useful. Check out this site: http://www.cs.uiowa.edu/~jones/step/ It contains a excellent tutorial on the subject, with interesting animated graphics, and even goes into some of the more "theoretical" and analytic aspects for those so inclined. -- Mark |