Hi, Spiro From the picture, this is a classical 1.8432Mhz crystal. Regards - Hervé Tous vos emails en 1 clic avec l'application SFR Mail sur iPhone et Android - En savoir plus. ======================================== Message du : 15/12/2013 20:55 De : "Spiro Trikaliotis " <firstname.lastname@example.org> A : email@example.com Copie à : Sujet : Re: Turbo232 UART Cart HDL Hello Mike, * On Fri, Dec 13, 2013 at 01:02:11PM -0800 Mike Naberezny wrote: > I have a HART cartridge. I added a page for it: > http://mikenaberezny.com/hardware/c64-128/hatronics-hart-rs-232/ Thank you for the info. So, if I understand it correctly: The HART interface - has a 8250 as UART - maps the registers at $DE18-$DE1F (read) and $DF18-$DF1F (write) - generates NMI whenever the 8250 generates an interrupt Can you tell what crystal is used for the baud rate generator? I think this should be enough info to rebuild the cartridge, if I do not miss anything. Regards, Spiro. -- Spiro R. Trikaliotis http://www.trikaliotis.net/ Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2013-12-15 20:07:33
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