Search found 251 matches

by prime
Tue Jun 19, 2018 9:13 am
Forum: Dragon General
Topic: MAME - Dragon 200-E
Replies: 19
Views: 11081

Re: MAME - Dragon 200-E

robcfg wrote:I’ll try to look at it during the weekend as I still have the machine with me.
Excelent, thanks Rob.

Cheers.

Phill.
by prime
Mon Jun 18, 2018 10:30 pm
Forum: Dragon General
Topic: MAME - Dragon 200-E
Replies: 19
Views: 11081

Re: MAME - Dragon 200-E

Sorry to resurrect this old thread..... I'm just trying to work out the complete circuit for the addon board so that we can maybe replicated it. I have it mostly traced from robcfg's scans, however there are a few things I can't work out..... Under the 6847 there are a pair of pads linked on the bot...
by prime
Mon Jun 18, 2018 9:08 pm
Forum: Dragon Hardware
Topic: DragonMMC Announcement.
Replies: 65
Views: 51162

Re: DragonMMC Announcement.

Right the 1.1 Firmware is available from the DraonMMC wiki page :

http://www.archive.worldofdragon.org/in ... MMC_SDCard

Cheers.

Phill.
by prime
Fri Jun 15, 2018 1:11 am
Forum: Dragon Hardware
Topic: DragonMMC Announcement.
Replies: 65
Views: 51162

Re: DragonMMC Announcement.

Yep firmware is completely field upgradable. Infact during assembly the only thing I needed a special programmer for was the AVR bootloader. Once that is done the other components can all be programmed from the card. I'll try and post the updated files on the DragonMMC wiki page over the weekend. Ch...
by prime
Thu Jun 14, 2018 3:30 pm
Forum: Dragon General
Topic: Dragon Meetup 2018 - 16th June
Replies: 25
Views: 11547

Re: Dragon Meetup 2018 - 16th June

Right should hopefully be there sometime on Friday afternoon.

Cheers.

Phill.
by prime
Mon Apr 09, 2018 2:57 pm
Forum: Dragon Hardware
Topic: DragonMMC Announcement.
Replies: 65
Views: 51162

Re: DragonMMC Announcement.

sardine wrote:we are waiting for the new firmware.. I dont really care how long it takes to give time for 720k, 360k support :)
You are, sorry still waiting on testers......

Cheers.

Phill.
by prime
Wed Apr 04, 2018 3:23 pm
Forum: Dragon General
Topic: Compusense, DragonPlus and the hard disk interface ...
Replies: 6
Views: 2910

Re: Compusense, DragonPlus and the hard disk interface ...

Is that the Roy Cotes of Dragonuser and Manic Miner / Jet Set Willy fame?

Cheers.

Phill.
by prime
Mon Mar 12, 2018 2:57 pm
Forum: Dragon General
Topic: DragonMMC Update.
Replies: 15
Views: 5029

Re: DragonMMC Update.

So is it making direct calls to the ROM? or calling through the indirect table at the beginning? If the former, then it's probably going to fall over even with the updated firmware. Yes, it is making calls to internall DOS subroutines, some of them being patched in RAM to avoid that any error ends ...
by prime
Sat Mar 10, 2018 4:24 am
Forum: Dragon General
Topic: DragonMMC Update.
Replies: 15
Views: 5029

Re: DragonMMC Update.

As for The Hobbit, how tied is it to Dragondos, i.e. could it just use files directly on the DaronMMC card?Phill. Hi Phill, in fact the Hobbit calls the some DOS functions, so it is heavily tied to the DOS If I remember correct, it supports DDos1.x (Dragon Data), DDOS4.x (Eurohard) and DosPlus (S3)...
by prime
Fri Mar 09, 2018 11:19 am
Forum: Dragon General
Topic: DragonMMC Update.
Replies: 15
Views: 5029

Re: DragonMMC Update.

Might not be useful - and is only a workaround anyway - but I seem to remember with SuperDOS, periodic use of the CLOSE command ensured things were flushed to disk. It also helped avoid spurious "?NE ERROR"s. Though the current version of DragonDOS on the DragonMMC uses a patched and bugfixed versi...