B020 Transputer Graphics Board info

From: Ram Meenakshisundaram <rmeenaks_at_olf.com>
Date: Mon May 10 08:37:08 1999

Tony Duell wrote:

> >
> > Hey,
> >
> > The B020 that I have has two connectors on it. One, I am assuming is the
> > 15-pin VGA connector. There is also another connector which looks like a
> > 9-pin EGA connector. Is this correct? How do you connect the B020 to the
>
> IIRC (and I still can't find my prints for it), the 15 pin connector is
> VGA out (to a monitor) and the 9 pin one is analogue (VGA) video _in_.
> The thing can switch the monitor between its own video and the external input
>
> > B008 to make one network instead of two. I will be getting all the support
>
> Hang on, I've thought where I put those diagrams... Here we are ... They
> don't quite match my PCB, but they're a good start.
>
> You were asking about SIMMs. You can use 256K*8 or 1M*8 ones. Fit J3 for
> 1M ones, J4 for 256K ones. These links are near the lower edge of the
> board and are labelled in the silk-screen.
>
> OK, there's a CO12 link adapter on the board. It's link can be switched
> in software either to the on-board T4 (link 0) or to the TRAM sockets.
> The TRAM also talks to the other 3 links of the T4 on-board.
>
> There's also an optional 8-pin mini-DIN on the rear edge of the card. The
> pinout seems to be :
>
> 1 Error/ (in)
> 2 Analyse (out)
> 3 Tram2 Link 2 out
> 4 Ground
> 5 Tram2 Link 2 in
> 6 T425 link1 out
> 7 Reset (out)
> 8 T425 link 1 in
>
> You should be able to link other transputers to it.
>

Apparently, the B020 I have doesn't have an 8-pin miniDIN. I guess it suppose
to be between the 15-pin VGA connector and the 9-pin VGA internal connector.
Geez, that really bites. Oh well, I tried connecting four size 1 trams to the
B020
tram slots, but it apparently only sees the first and second tram slots. The
third
and the fourth are not recognized. Do you know why that would happen?? Maybe
a jumper problem???

Stacking trams is a really neat why to fully populate the motherboard. I didn't

know you could do that. Well, I now just need the jumper pins (I got a few, but
not enough). Does the jumperpins go to both the top (1 to 8) and bottom (9 to
16) pins of the tram
slot, or only to pin 1 to 8. The only problem with stacking trams is you can
not
put another card next to the B008. It is pretty fat and occupys the ajacent
ISA slot on
the PC.

Ram

PS: For you transputer fans, Eonic Systems released for FREE, their real-time
kernel, virtuoso,
for the transputer (NON-COMMERCIAL USE ONLY). Download the manual and software
from
my webpage at http://www.geocities.com/SiliconValley/Heights/1190.


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|                        Ram Meenakshisundaram
|                        Senior Software Engineer
|                        OpenLink Financial Inc
|  .oooO                 Phone: (516) 227-6600 x267
|  (   )   Oooo.         Email: rmeenaks_at_olf.com
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Received on Mon May 10 1999 - 08:37:08 BST

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