exxos's DFB1 trials

[JezC]

Adding a phantom like bus accelerator? The CT60e has an integrated bus accelerator.

Oo - sounds like a feature for a future version!

Which reminds me that I have an unused/unfitted Nemesis kit somewhere... :roll:

[exxos]

Adding a phantom like bus accelerator? The CT60e has an integrated bus accelerator.

Oo - sounds like a feature for a future version!

It will probably be better to recreate the Phantom accelerator more than anything. I think people have done this multiple times over the years but I am not aware of any which are currently on sale or how reliable or tested they are.

@Steve or @Rustynutt are the only people I can think you may be able to answer questions more about it. I think it's creator is @ctirad Who sometimes visits the forum I think. Maybe those guys could team up and recreate a updated solution :shrug:

[Steve]

I certainly value bus acceleration over CPU acceleration. If you made me choose between my ct60e and my Phantom, I'd still choose Phantom. There are just too many advantages. Higher video resolutions, higher frequency audio playback in ace tracker, overall higher system performance.

@alexh I don't think there has been any documentation released for how to populate & use the booster section of the ct60e. If there was I wouldn't need to use a separate phantom board.

[alexh]

Ask ctirad who invented the original Phantom?

https://www.atari-forum.com/viewtopic.p ... 29#p352929

[exxos]

@Badwolf (Or anyone for that matter who may know)..

On the FPU A0 and SIZE are both tied to VCC but via a solder jumper pad. Is there any specific reason for keeping those pads because I don't think anyone ever got the trace ordered any modifications to it ? Am thinking of removing the jumper pads...

EDIT:

Found this anyway.

Capture.PNG

[Steve]

Ask ctirad who invented the original Phantom?

https://www.atari-forum.com/viewtopic.p ... 29#p352929

afaik the booster side of the ct60e has nothing to do with ctirad who created the Phantom. I could be wrong tho, but the footprints are completely different for the chips and components etc.

[alexh]

Maybe but did you read that post?

[Steve]

Maybe but did you read that post?

Yeah I just had a read

[exxos]

Managed to do a bit more routing. There is still a lot of tidying up to do yet though.

Got somewhat distracted in tidying up some of the other traces because there is a lot of "V" shaped bends which I am also trying to iron out as much as possible. A lot of traces have had angles removed and lengths of the traces shortened. Also there have been a few roots which could easily be optimised. It kind of turned into a bit bigger job than I was planning to do :lol: :roll:

Capture.PNG

It looks like the board was originally autorouted or something but I thought Kicad did not have a proper autorouter ?

[exxos]

“C23:/608897EB/609535E7:Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder”.
Error: Cannot add C28 (footprint “CAPC3216X110N” not found).
Error: Cannot add C27 (footprint “CAPC3216X110N” not found).

:shrug:

I had to add that library to get the symbol for the schematics but no idea why the PCB itself will not update ?

EDIT:

Okay figure it out, in the PCB window click tools then update footprints from libraries.