I've been in occasional contact with Holger and Roland since *scratches head* 5 years or so Who (like I said) have been incredibly helpful supplying first hand support, advice, clearing up that they don't hold the copyright even tho it's their first-hand intellectual property, etc.Dal wrote:What kind of help are you looking for? You might want to get in touch with Darklord as he has established contact with Holgar Zimmerman who will certainly be able to help you.
There's already enough other solutions around. Before anyone goes "y u no add 060, ddr-ram, pci-e x16, supervidel support and firebee compatibilty", the aim of this is to preserve a project that's doing exactly what it should while only fixing minor existing issues/bugs rather than adding features.Nikolas wrote:off topic.
on top cpu board as ide controller for compact flash card slot.
Thats will be great too
I've done so already before posting the "announcement" on here Same thing over there - maybe announcing it on the german "Verein zum erhalt klassischer Computer" (club for preservation of classic computers) will help, which is already planned from my side.Dal wrote:It's a shame Holgar wasn't able to help as he would certainly be perfectly placed given his connection to the products. If you haven't already done so, then a plea on http://www.atari-home.de might be a good idea.
Shockwav3 wrote:(and possibly Holger [not Holgar ])Dal wrote:It's a shame Holgar ...
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New name: FRAK/2A
Ripped up traces are already reflected in the layout
5.25" Molexsocket moved to top side (fixed swapped trace, added different form, so no more hotglue needed)
3.5" Molexsocket moved slightly
Removed DIP-8 oscillator
All additional parts added by the PCB patches are in 1206 SMD placed on the bottom side
Patch 1 hardwired (bottom layer)
Patch 2 hardwired (both layers) + resistor (68ohm) added
Patch 3a hardwired (top layer)
Patch 3b hardwired + cap (100nf) added (both layers)
Patch 4 hardwired (top & bottom layer (0.4mm trace))
Patch 5 hardwired (bottom layer (0.4mm trace))
Patch 6 hardwired + Resistor added (1.5kOhm, bottom layer)
Patch 7 Via (1mm) added
Patch 8 hardwired (both layers) + resistor (150Ohm) added
To be perfectly honest, I'm not sure if that's going to happen any time soon from my side.ralcool wrote:Will you be putting the re-design to copper to see if they work?... early days yet.....
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Slightly upsized the outer dimension border (3.81mm [1.5 DIP rasters] from the outmost solder joint)
Different symbol used for tantalum capacitors
Moved BS tag (Bestückungsseite/Component Side) to the top copper layer
Moved LS tag (Lötseite/Solder side)
Named IC on the underside U24 for internal use
Named solderbridge on the underside J13 for internal use
Slightly moved cap C43 and replaced it with a 2.5mm grid one, rearranged 5 tracks.
Started naming signals for internal use/debugging, refered to the names used in c't 11/93
Moved the CON2/U7 tags to better represent their orientation
Added more ground connections for the FRAK/2 addon (which will get a new revision to reflect these changes)
- GND to CON1 Pin6 (previously unused)
- GND to U20 Pin1 and U21 Pin1 (previously connected to /TWE2, no change in functionality. Switching is still done by Pin19 on U20 & U21)
Changed line width to 9mil to go with most PCB manufacturer's design rules
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