From: David Wood (jbevren_at_starbase.globalpc.net)
Date: 2008-11-08 06:34:27
On Fri, 7 Nov 2008, Jim Brain wrote: [Clip] > > As to your inquiry about not being able to drive a 1541 from the AVR, I > wonder if the AVR cannot sink enough current to overcome the 1KOhm > pullups in the 1541. It would not be my first thought, but aside from > protocol concerns, one must consider the electrical portion of the bus. As for the comment about the AVR overcoming the 1k pullups, the uIEC works great on my system: C128D 1571D (8) Indus GT (11) 1581 (10) 1541 (9) UIEC (12) It would seem that the atmega128 can do it. I wonder about the smaller uCs.. > > Jim > -Jbev Message was sent through the cbm-hackers mailing list
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