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Re: Gryphon 68030 [message #789 is a reply to message #783] Sun, 12 June 2016 10:26 Go to previous messageGo to previous message
yoda is currently offline  yoda
Messages: 125
Registered: October 2015
Location: Cedar Rapids, IA
Senior Member
lynchaj wrote on Sun, 12 June 2016 09:03
Hi

As promised, a Gryphon 1.1 schematic converted to KiCAD. Includes the EEschema ERC file if anyone would like to work on that also. Several (14) severe warnings on bidirectional pins connected to tristate pins. This should work regardless but KiCAD is complaining about it. Is there anything we can do?

To do a pin audit, just print out both the original Proteus Gryphon 1.1 schematic and the new KiCAD Xagdin schematic PDFs. Get a fine point red marker and go through both schematics on component at a time and compare. If they are the same put a red dot next to each pin. If there is a mismatch or something missing, extra unexplained stuff, etc. put a red circle around the offending item and post results here.

Thanks

Andrew Lynch

PS, I gave my schematic the temporary junk name Xagdin to separate it from the Gryphon main branch so people can keep them straight. Xagdin is literally a random username generated to distinguish the two schematics. Once we know the Xagdin (KiCAD) schematic is good we can erase Xagdin and conform the schematic in the Gryphon design series.


Hi Andrew

I have downloaded the schematics and will start to take a look at them - probably will take a week or so. I need to compare to all my errata notes as well that did not make 1.1 of schematics. Quick perusal I can say there are changes in the IDE area as the '139 area needs updated and the connector on video should be a VGA connector instead of a DB15 connector. Also I think most would prefer the Serial I/O come out on the board to headers that a TTL to USB adapter would accept. For the cost of the Max 232, caps and db9 the dongles tend to be cheaper and work better with modern PCs.
 
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