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Re: Building the KLyball 600D

Posted: Sat Apr 13, 2019 6:20 pm
by waltermixxx
here is a picture of the modification:
IMG_0298.jpeg
IMG_0298.jpeg (918.4 KiB) Viewed 9156 times

Re: Building the KLyball 600D

Posted: Sun Apr 14, 2019 6:58 pm
by Jeff
That is nice and clean. Perhaps Grant will add a jumper block to the next batch of boards.

/Jeff

Re: Building the KLyball 600D

Posted: Sun Apr 14, 2019 8:00 pm
by waltermixxx
So here is an interesting fact, (I'm sure most of you "dyed in the wool" OSI fans already know this, but if you Poke 55296,1 to get the 48 character column mode, do you know it will also double your 9600 baud serial speed to 19200? :) I'm sure most of you knew that, but incase you did not. :)

Steve Gray was at my place yesterday along with Josh Bensadon, and we were messing around with the REV. D. and Steve mentioned he was going to have a look at the CEGMON code and see about adding the Poke and the 48 character screen initialization routine to the start up of the OSI boot up process for the REV.D. I'm hoping he will it would be cool to be able to start up the OSI in 48 character mode. :)

Also using the poke 55296,1 is not reset proof, unless you left pin 1 of U72. if you do lift the pin, then only a power off will bring it back to 24 characters. :) does anyone have the link to the routine that needs to be run in order to fix the 48 character screen so there is no big space in the middle?

Re: Building the KLyball 600D

Posted: Thu Jul 04, 2019 11:53 pm
by BillO
Hey folks!

When we first started building these replicas back in 2015 I remember we were able to source a 40-pin ribbon cable to connect between the 600 and 610 boards. Am I remembering this correctly or did we just fabricate them? If we bought them, does anyone remember from where?

Re: Building the KLyball 600D

Posted: Sat Jul 06, 2019 4:22 pm
by Jeff

Re: Building the KLyball 600D

Posted: Sat Jul 06, 2019 6:00 pm
by BillO
Thanks Jeff.

Someone over on the 6502 forum was asking about something like this and I couldn't remember them.