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Message-ID: | <549342D9.4030008@neurotica.com> |
Date: | Thu, 18 Dec 2014 16:10:49 -0500 |
From: | Dave McGuire <mcguire AT neurotica DOT com> |
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To: | geda-user AT delorie DOT com |
Subject: | Re: [geda-user] Nema 23 stepper motors |
References: | <CALSZ9gqe8r31JNze_PPmGkMeYnNc-_zOXxTvQ1GBn+zt-njEAQ AT mail DOT gmail DOT com> <1202520334 DOT 584160 DOT 1418936264033 DOT JavaMail DOT yahoo AT jws100190 DOT mail DOT ne1 DOT yahoo DOT com> |
In-Reply-To: | <1202520334.584160.1418936264033.JavaMail.yahoo@jws100190.mail.ne1.yahoo.com> |
Reply-To: | geda-user AT delorie DOT com |
On 12/18/2014 03:57 PM, Cirilo Bernardo wrote: > Why not use one of TI's DRV8xxx or other specialized driver chips? > You can see the TI gizmos here: > > http://www.ti.com/lsds/ti/apps/motor/products/integrated_motor_drivers.page > > It's been well over a decade since I've used microcontrollers to do > anything more than the setup and clocking of the motor driver IC. I was about to suggest the same thing. Real stepper controller ICs have been around for 40+ years; it has really never been a good idea to bit-bang it with a processor. Today's stepper controller chips are very, very impressive. -Dave -- Dave McGuire, AK4HZ/3 New Kensington, PA
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