GBA1000 Order

[PJM]

I thought 1.2 was kickstart disk and 1.3 a ROM?
Anyway this board has two rom sockets so you burn your own or I presume use the A1200/A4000 kickstart. I need to check that however.

[yakumo9275]

I thought 1.2 was kickstart disk and 1.3 a ROM?
Anyway this board has two rom sockets so you burn your own or I presume use the A1200/A4000 kickstart. I need to check that however.

my understanding is, it has two sockets, one for a KS rom, and one for another KS rom and you can swap between them, so you need a single KS rom set (so not a a1200/a4000 double rom set).

[PJM]

my understanding is, it has two sockets, one for a KS rom, and one for another KS rom and you can swap between them, so you need a single KS rom set (so not a a1200/a4000 double rom set).

Excellent - a ROM switcher as well.

[yakumo9275]

well, someone with better german should confirm, it says something in the german pdf, its in the rev 00.zip file.

[Plaz]

BTW: has anyone bothered to put together a parts kit (sans Amiga custom chips) for these? Be nice to have a one or two stop shop vs. hunting, pecking and scouring multiple distributors.

I did a bill of materials back for the first set of boards in 2008. Was posted on the net some where. I'll see if I can locate my copy to repost. Not as good as a kit, but you can build your own kit from I think two vendors.

Plaz

[Plaz]

well, someone with better german should confirm, it says something in the german pdf, its in the rev 00.zip file.

There is an english version of the manual I helped edit. If not found on the net with a GBA1000 search, I'll try to find my copy and repost.

Plaz

[PJM]

well, someone with better german should confirm, it says something in the german pdf, its in the rev 00.zip file.

The manual says one socket is a ROM socket and the other EPROM. You can use your own custom kickstarts in the EPROM. In this instance any kickstart chip from the A500/A2000 should work in the ROM socket.

[save2600]

I did a bill of materials back for the first set of boards in 2008. Was posted on the net some where. I'll see if I can locate my copy to repost. Not as good as a kit, but you can build your own kit from I think two vendors.

Plaz

Awesome Plaz! Yeah, please share.  

[PJM]

This would be useful. I plan to do a new website to replace the one that was lost .

[Rodomoc]

Reading through the various posts on this thread and the other one. Also took a look at the various Braun materials. I know that it is nice to think about the possibilities of added features or a change in board format, but it is best to manufacture the v4 board as is. It is soundly engineered and good to go. Should Braun release eagle and BOM info on the v5, well obviously that would be the way to go in the future. I have 2 A1000 machines. It looks like one of them is going to run real good soon.

[Rodomoc]

In studying the schematics between V4 and V5, much is the same when it comes to general Amiga chip set portion of the circuit. Obviously the V5 CPU and memory is radically different than V4 and also the IDE. Braun did a lot of detailed electrical engineering as evidenced by reviewing the eagle files for V4. A ton of work was done, so hats off to him for basically reverse engineering the general Amiga circuit.

I see Braun does not speak too highly of the IDE in the V4 board. This must have been his inspiration to go into an A600 IDE design in V5.

I also compared initial board release schematics with V4. Various small changes were made, but overall it is quite the same.

One other thought comes to mind...That being a small hacker board containing clock ports being added to a V4 board. Might be possible, thus giving the V4 a nice feature boost w/ 3rd party add ons. (Subway USB, Delfina, ?) Maybe someone clever can work on something along these lines?

I am confused by Kickstart version. The V4 looks to be a straight up 2MB based ECS design to me so one would assume that 3.1 Kickstarts would be a possibility.

[PJM]

In studying the schematics between V4 and V5, much is the same when it comes to general Amiga chip set portion of the circuit. Obviously the V5 CPU and memory is radically different than V4 and also the IDE. Braun did a lot of detailed electrical engineering as evidenced by reviewing the eagle files for V4. A ton of work was done, so hats off to him for basically reverse engineering the general Amiga circuit.

I see Braun does not speak too highly of the IDE in the V4 board. This must have been his inspiration to go into an A600 IDE design in V5.

I also compared initial board release schematics with V4. Various small changes were made, but overall it is quite the same.

One other thought comes to mind...That being a small hacker board containing clock ports being added to a V4 board. Might be possible, thus giving the V4 a nice feature boost w/ 3rd party add ons. (Subway USB, Delfina, ?) Maybe someone clever can work on something along these lines?

I am confused by Kickstart version. The V4 looks to be a straight up 2MB based ECS design to me so one would assume that 3.1 Kickstarts would be a possibility.

The board now takes both of the ECS 2mb Agnus chips (A500+/A3000). The board can run kickstart 3.1 with no issues or your own customised kickstarts. A clockport could be added, there's a couple of places it could be taken from. His schematics are fantastic. You could build your own Amiga design with them. The A600 IDE design is far better, as used in a number of A500 expansions. In the future I do plan to adapt them to ATX for my own purposes.

[Iggy]

The board now takes both of the ECS 2mb Agnus chips (A500+/A3000). The board can run kickstart 3.1 with no issues or your own customised kickstarts. A clockport could be added, there's a couple of places it could be taken from. His schematics are fantastic. You could build your own Amiga design with them. The A600 IDE design is far better, as used in a number of A500 expansions. In the future I do plan to adapt them to ATX for my own purposes.

That's cool.
I'd love to see an ATX implementation.

[yakumo9275]

just scored a craigslisted A500 mobo that will be the sacrificial lamb for all the connectors.

Someone is selling DB23 male/female connectors on ebay but these are NOT right angle solder connectors, they are for making cables, not for soldering to the mobo.

[Plaz]

@PJM

Found the English version of the manual. PM me with an address and I'll send a copy you can post for everyone. Still looking for my version of the bill of materials.

Plaz

[pwermonger]

Count me in for one board. I need a project to take up my free time and what is more worthy than something Amiga?
Copies of the manual and bill of materials would also be great if made available to help us along with getting these setup once we get them so hopefully those can be found and put up someplace.