>Date: Thu, 10 Oct 2002 10:14:03 -0700 >From: Gamba <[EMAIL PROTECTED]>
>>Jeff Walther >>If you have a PAL or GAL which was programmed as >>a State Machine it can take significant brain sweat and time to >>figure out how it's programmed. > >I would say damn near impossible. It depends, I think, on how many of the outputs are dependent on feedback. For example, if you have a GAL 16V8 and seven of the eight outputs are combinational, I do not think it would be that hard to figure out what kind of state machine the eighth is implementing. On the other hand, if all eight are dependent on feedback, then "damn near impossible" may be an accurate description. On the gripping hand, if one knows what the part is meant to implement it may be easier to figure out what the state machine does. I'm busy with another project at the moment and a friend has my proto-board so I haven't started trying to decode the GAL16V8 from the Outbound floppy controller yet. We'll see how it goes... >>You can use Osmond PCB to lay out the board. > >Does Osmond generate the Gerber files (usually generated by PCAD) that are >required by the PWB fab houses? Yep. I've used it for two boards so far. One was a two layer board I sent to APCircuits and the other was a four layer board that went to Sierra Proto Express. Neither company had any hiccoughs with the Gerber I sent them and I got back what I expected. Most of the houses also want the Gerber files zipped into one package, but I've used Zipit for that. So I'm able to do the entire design and delivery of the board on my Mac. Some times they'll want a mechanical drawing of, e.g., the outline of the board. I usually use one of the Aux. layers for that and output it in Gerber along with the rest of the design. It's worked so far. Jeff Walther -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> The FAQ: <http://macfaq.org/> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
