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Re: Building the KLyball 600D
Posted: Tue Jun 23, 2015 8:04 pm
by BillO
Hi Grant,
Yes, I see your note now. RTFM!
As for the video, the buffers are 8T28s and I have rechecked the memory section 3 other jumpers (R32 to Vcc, vias under U56 to connect pin 2 of U57 to J3 pin 8 and pin 15 on U59 to adjacent via).
Would these cause the characters to display backwards or are there other jumpers to configure??
Re: Building the KLyball 600D
Posted: Tue Jun 23, 2015 8:30 pm
by Klyball
I will confirm that these are the correct connections when I get home, I can't remember what problems it caused without the connections . But when I brought the board up I got video fixed first then memory and finally the lifted pin to boot. I think I would have remembered if it was backwards, but short term is failing me
Re: Building the KLyball 600D
Posted: Tue Jun 23, 2015 11:08 pm
by BillO
I got the video working. It was the character generator. I found a different file, burned it, tried it and we're all good now!
Just got to get the serial working. When I type SAVE, it goes into limbo.
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 12:22 am
by Klyball
J3 on revision D needs to be configured, with out the baud divider connected there is no tx/rx clock to the 6850
- OSI600-10.jpg (98.01 KiB) Viewed 3245 times
- OSI60011.jpg (148.36 KiB) Viewed 3246 times
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 2:59 am
by Jeff
BillO wrote:I got the video working. It was the character generator. I found a different file, burned it, tried it and we're all good now!
Bill, can you post the file, so there is no confusion? Thanks!
/Jeff
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 4:46 am
by BillO
@KLyball - Thanks Grant for posting that. I finally figured it out after looking through the schematic for a while. Too long, really. Ahhh...
Is that new (600D) Superboard II doc available on-line somewhere? It would be nice to have a copy.
@Jeff. The character generator file that worked for me is attached below.
- CHARGEN.zip
- Character Generator ROM
- (1.18 KiB) Downloaded 114 times
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 4:58 am
by Klyball
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 12:20 pm
by BillO
Thx Grant!
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 5:10 pm
by BillO
My 600D is up and running at 100%! Thanks everyone for your assistance on this!
Now, here's more good news. My memory expansion board functions 100% too on this mainboard. So that project can now continue.
BTW, what baud rates do you folks use and what do you use for end of line and character delays for text transfers?
Re: Building the KLyball 600D
Posted: Wed Jun 24, 2015 10:58 pm
by Jeff
9600 no delays