RX02 / DSD440 / SA801 problem

From: Tom Leffingwell <tom_at_sba.miami.edu>
Date: Thu Mar 7 18:57:41 2002

On Thu, 7 Mar 2002, Tony Duell wrote:

> OK. It sounds like the ASIC is working correctly. Do this look like
> stepper drive waveforms (3 similar signals with a phase offset between
> them)?

As far as I can tell, although I've never worked with steppers before.
 
> Is this with the motor connected?

Yes

> If you're getting square waves at the driver collectors with the motor
> connected then either the motor is faulty (but you've board-swapped
> between the 2 drives so you know it's OK), or there's an open
> connection somewhere.

I checked the connections. Maybe there's a bad diode in there somewhere?

Any other ideas?

Thanks,

Tom
Received on Thu Mar 07 2002 - 18:57:41 GMT