[simpits-tech] Stepper Controller V2.1

[Gene Buckle]

SPI stands for Serial Peripheral Interconnect.  It's a two wire, clocked
serial protocol.

You've got this laid out on a single sided PCB, right?

g.

On Mon, 18 Feb 2002, Stig Joergensen wrote:

> SPI Interface - what is that?
> 
> Anyway, this the connector descriptions :
> 
> J1: (IO to PC)
>   Signal 2
>   Signal 1
>   Step
>   Direction
>   +12v
>   gnd
>   +5v
> 
> J2: (To Stepper)
>   Common Coil
>   Coil 1
>   Coil 2
>   Coil 3
>   Coil 4
> 
> J3 / J4: (To/From Sensor)
>   Signal
>   Gnd
>   +5v
> 
> 
> The idea for J3 and J4; connection to an optical sensor where +5v and
> GND is connected to a light source and +5v and signal is connected to a
> phototrans. and the signal from this sensor is carried through to J1 as
> Signal 1 resp. 2 (for boundary checks).
> 
> you connect the power mains to GND, +5v and +12v. the direction when
> high lets the stepper "half step" one way and when low the other way
> when the Step-pin goes high.
> 
> 
> Im about to make an expansion board, so you can control 15 steppers with
> sensors on 8 a bit IO port. the downside is that you can only rotate one
> stepper at a time. but more on that later....
> 
> 
> /Stig
> 
> 
> 
> 
> 
> 
> > -----Original Message-----
> > From: Gene Buckle [mailto:geneb@deltasoft.com]
> > Sent: 18. februar 2002 20:51
> > To: simpits-tech@simpits.org
> > Subject: Re: [simpits-tech] Stepper Controller V2.1
> > 
> > 
> > 
> > Stig, does this operate on an SPI interface?  How do you talk to it?
> > 
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> 

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