BVision connector ref needed

[Karlos]

I guess you should get some clues from the support chips on the BPPC and the BVision... I don't recall any PCI host chips on the BPPC or the BVision (could be implemented in CPLD or FPGAs maybe?)... But I am pretty sure the Permidia2 was designed to interface to a PCI? No? The BPPC connector could well be just the PPC CPU signals brought out to a header...

The adapter board for the GRexx has a great big CPLD on it. If you look up the part number, you'll see it's a PCI compliant part. My guess is that it probably implements whatever is missing on the Blizzard itself.

[Karlos]

i may of got it wrong about Elbox.

If I had to guess, I'd say you were thinking of the GRexx, which is phase5/DCE.

[Karlos]

Well that suggests the BPPC port is little more than a header on the BPPC's bus... If it were a PCI port the G-Rex would require little logic to bring that out to standard PCI slots

I remember asking Ralf Schmit about the port some 13 years ago, and recall him saying it was standard PCI... But I don't know how much he know about the hardware... He could have been referring the whole interface with the BVision...

Well, there is a bit of CPLD glue on the BVision also.

[Karlos]

I would suggest that is to interface with the PCI compatible interface in the Permedia2

I don't doubt it. Pity there doesn't seem to be any obvious DMA between the two cards (perhaps there is and I'm just not aware of it). I recall that the GRexx was supposed to be capable of supporting host <-> PCI device DMA.

[Karlos]

I doubt there is any, BVision was clearly build on a budget... Speaking of which, do you still have your A1200 setup?

Of course. My signature is entirely up-to-date :lol:

[Karlos]

A simple yes would have been sufficient... Ok, then do you want to try getting AROS on your A1200?

Do I take it that at present only AGA native modes are supported? If that is the case, I will be a bit stuck as I currently have no 15kHz capable display devices.

[Karlos]

I might have an old TV tuner card somewhere...

[Karlos]

first Bvision the world to have a 250Mhz RamDac and has a vertical refresh rate of 200Hz and there *may possibly* be more to come from it`s PCI bus beyond 43Mhz.

I fail to see how this information assists the OP, but I have to ask, a 200Hz refresh rate is a bit pointless isn't it? On my CRT there's no appreciable improvement of picture quality beyond 85Hz refresh.

[Karlos]

let me see,you are wrong picture quality has improved this is before i changed any settings,*maybe* this is something i done.

image is a little bit sharper more defined

What, does a faster vertical refresh rate magically change your CRT's dot pitch?

,this is why i don`t need to use a screenmode lower than 800x600 when testing any PPC games.

800x600 may be technically impressive for P2 3D gaming, but like most 3D game fans, I tend to use rather less archaic kit for the job.

whats your *refresh rate* with highest *screenmode* setting while retaining 16.7 million colours?

UPDATE CORRECTION: should read upto 200Hz refresh rate.

Well, I don't use 32-bit display modes on the BVision as they are a complete waste of video memory, but I do recall 1280x1024@75 Hz working. The highest it goes is 1600x1200, which is a limit of my old CRT.