Search found 14 matches
- Sun Nov 19, 2023 6:41 pm
- Forum: Dragon Hardware
- Topic: SuperRGB Boards
- Replies: 10
- Views: 37459
Re: SuperRGB Boards
Please may I ask if anyone uses an RGBtoHDMI, and has had luck making a profile for it which works with the output from the SuperRGB board yet? I think it should be possible, as there are already profiles for using the RGB2HDMI work with the component output from the 6847 chip, and for other analogu...
- Sun May 21, 2023 9:27 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Hi again, sorry for being slow to reply, I wanted to take time to check all of the various combinations of things I have before posting an update. I'm still having the problem when trying to use the CoCoSDC with the Issue 5 motherboard if it is connected via any sort of cartridge port expander. I've...
- Sun May 14, 2023 10:45 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Thanks, I've just RTFM'd myself, and looked up the error code appendix in the DOS manual, so I don't have to keep asking "what about this one?" over and over. The CoCoSDC is throwing a BT error if I type BOOT, and an IV if I try to DIR, so it just can't read the SD card I think, but only when it's p...
- Sun May 14, 2023 10:30 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Ah okay, thanks for the info, I will keep that in mind when choosing logic ICs in the future.
I made the change to the motherboard, so the _MS line is linked to _FS and not +5v, and can confirm the lower case board is now working great.
Thanks very much for your help!
I made the change to the motherboard, so the _MS line is linked to _FS and not +5v, and can confirm the lower case board is now working great.
Thanks very much for your help!
- Sun May 14, 2023 5:32 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Thanks very much for the help, and no worries at all. I just wanted to check with you before I started hacking away at my motherboard, only to find out later that I'd come to the wrong conclusion and made a right old mess! I think I've got all LS chips in the issue 5 board but I'll go check that in ...
- Sun May 14, 2023 5:31 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Thanks very much for the help, and no worries at all. I just wanted to check with you before I started hacking away at my motherboard, only to find out later that I'd come to the wrong conclusion and made a right old mess! I think I've got all LS chips in the issue 5 board but I'll go check that in ...
- Sun May 14, 2023 3:43 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Hi Sixxie, I've been trying to get one of Jon's lower case boards working with my issue 5 motherboard but so far I'm not having much luck, as the issue 5 board refuses to start up when the lower case board is connected. The lower case board works fine with my original D32 issue 2, so I don't think t...
- Sun Apr 09, 2023 9:21 am
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Morning, Just wanted to give an update on the serial comms part of the board, in case it's of help to others building one. I still haven't had chance to test it at the software level as I got distracted playing TeaTime and Chuckie Egg (doh!) but I wanted to post this before too much time passed and ...
- Mon Mar 06, 2023 9:48 am
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
Cheers, I'll give it a try. I think I saw some terminal software in the archive the other day too, but I can't remember where it was. Next daft question... Does anyone have a spare case and/or keyboard I can buy, so I can complete my new Dragon? I don't really want to sacrifice my original if I don'...
- Sun Mar 05, 2023 2:52 pm
- Forum: Dragon General
- Topic: Dragon 64 motherboard replacement
- Replies: 29
- Views: 46551
Re: Dragon 64 motherboard replacement
The issue 5 board seems to work fine with standard 18-20pF cyrstals for 4.433619MHz and 14.31818MHz. The docs for the WDC65C51N say it requires a 1.8432MHz series crystal, with a 1Mohm resistor in parallel, and a 30pF cap to ground, I haven't checked that yet. Is there any serial software for the Dr...