XT-IDE V2

File: Sun Dec 11 07:54:20 2011 Printing XT-IDE V2-brd.pdf (701295 bytes)
Sergey Kiselev at 7:25 pm on Dec 9, 2011:

Why use MAX232? It doesn't provide all the flow control lines. I propose to use GD75232 chip instead. It requires +12 V and -12 V voltages, but they are available on ISA connector.
Also is it possible to add DE9F connector for RS232 on the externally facing edge of the board?

Andrew Lynch at 9:10 am on Dec 10, 2011:

Hi Sergey! Thanks! Those are good ideas! The issue with the DE-9 connector on the back panel is procuring a back panel slot and configuring the position of the DE-9 on the PCB so that it will fit reliably. I have never figured out how to do that. I will look into the GD75232 chip however I do not see it at Jameco. This board is really just a cobbled together prototype for the XT-IDE team at vintage-computer.com forums. I thought the project was basically dead but I keep getting builders asking for more of the boards and the CPLD replacement XT-IDE boards keep getting delayed. The purpose of this XT-IDE V2 is just to temporarily relieve the backlog pressure and buy the other team some time to get whatever issues they have resolved. Once they are working my plan is to retire the original XT-IDE and XT-IDE V2 lines so the new team can take over. Thanks and have a nice day!

Andrew Lynch

File: Sun Dec 11 07:54:25 2011 Printing XT-IDE V2-sch.pdf (189418 bytes)
File: Thu Jan 5 17:20:20 2012 XT-IDE V2 Front and Back.pdf (794805 bytes)
File: Sun Dec 11 07:54:26 2011 XT-IDE V2.lst (5926 bytes)
File: Thu Feb 21 18:07:44 2013 XTIDE REV2 settings.png (44591 bytes)