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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
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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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