Search found 8 matches
- Wed Jun 28, 2023 6:09 pm
- Forum: Dragon General
- Topic: dragon 32 fault
- Replies: 14
- Views: 27999
Re: dragon 32 fault
Long time lurker here. If you look at the differences it looks like bit 3 is always low. It can't be the ROM if it's getting this far. Probably not RAM either. Maybe the VDG chip connection to the data bus? Try cleaning the MC6847 socket. "DRAGON" => "DRAGGN". G=O "BASIC" => "BA[AC". [=S and I=A "19...
- Sun Feb 23, 2020 6:36 pm
- Forum: Dragon General
- Topic: A 6809 Single Board Computer
- Replies: 22
- Views: 20422
Re: A 6809 Single Board Computer
You can use any Terminal software. I used Putty. Old versions of Windows had HyperTerm built in.
Baud=115200
It's a little unreliable as there is no handshaking. Fine for typing but if you paste a basic program it will have errors.
Baud=115200
It's a little unreliable as there is no handshaking. Fine for typing but if you paste a basic program it will have errors.
- Fri Jan 24, 2020 8:06 pm
- Forum: Dragon General
- Topic: A 6809 Single Board Computer
- Replies: 22
- Views: 20422
Re: A 6809 Single Board Computer
Remember I had to make my own from resistors
Not an expert but I think the 'dot' is pin 1.
Did you really buy 100? I only bought 30!
Not an expert but I think the 'dot' is pin 1.
Did you really buy 100? I only bought 30!
- Thu Jan 23, 2020 7:49 pm
- Forum: Dragon General
- Topic: A 6809 Single Board Computer
- Replies: 22
- Views: 20422
Re: A 6809 Single Board Computer
I'm glad it work the first time for you. I just order all the parts I need to build 4 of them. When I order the PCB Board I'm thinking of ordering at least 5 or maybe 10. I do own a XGecu TL866II Plus High-Performance Universal USB Programmer so I can Burn the Eprom. I wish I had the files "exbasro...
- Wed Jan 22, 2020 9:00 pm
- Forum: Dragon General
- Topic: A 6809 Single Board Computer
- Replies: 22
- Views: 20422
Re: A 6809 Single Board Computer
I'm the person in the comments that says "I made one!" :D It's based on a Grant Searle design: http://www.searle.wales/ I've tried many times to make this on a breadboard and failed. Here's mine (with a homemade resistor array): https://c0dedbad.co.uk/6809.jpg It worked first time. I would have made...
- Thu Feb 07, 2019 8:00 pm
- Forum: Dragon General
- Topic: Steve Bak
- Replies: 2
- Views: 4119
Steve Bak
Steve Bak RIP
4th April 1952 - 6th February 2019
A legendary programmer who wrote many games for Microdeal.
He went on to work with the Atari ST & Amiga (and probably other platforms).
4th April 1952 - 6th February 2019
A legendary programmer who wrote many games for Microdeal.
He went on to work with the Atari ST & Amiga (and probably other platforms).
- Fri Dec 15, 2017 3:57 pm
- Forum: Dragon General
- Topic: Dragon ROMs
- Replies: 2
- Views: 2659
Re: Dragon ROMs
Thanks Rob,
Just toying with the idea of a custom ROM.
I have a bunch of 27xxx EPROMs around here. Would be simple to make an adapter.
Just toying with the idea of a custom ROM.
I have a bunch of 27xxx EPROMs around here. Would be simple to make an adapter.
- Thu Dec 14, 2017 9:11 pm
- Forum: Dragon General
- Topic: Dragon ROMs
- Replies: 2
- Views: 2659
Dragon ROMs
Hi All,
Long time lurker here. I had an account but I guess it expired.
How do I read Dragon ROMs in my EPROM programmer?
My GQ-4X supports every device under the sun but not the TMS4764.
Any tips?
Long time lurker here. I had an account but I guess it expired.
How do I read Dragon ROMs in my EPROM programmer?
My GQ-4X supports every device under the sun but not the TMS4764.
Any tips?