The Sinclair QL Forum

So, the trumpcard rom chip is a 32K device, with approximately one half being the disk driver and other driver support software, and the other half being the toolkit II.

I say approximately half, because some of the TK II images are actually larger than 16Kb.

From my understanding of the ROM scan ...

The addressing for the memory comes from the large ingot chip - which is a programmable logic device. The design is quite pin constrained, so upping the memory is not an option I'm afraid.

Gold card does work with backplanes, but from my experience it doesn't like long connections, so some backplanes work better than others. Have you tried taking out the 68008 from the QL when you use the Gold card ? I made a flip over backplane for my gold card and ran that on top and upside down of ...

I have one of these GAL programmer kits from Elektor - It didn't have any intelligence on board if my memory serves me - just TTL registers and serial shifters to setup the various pins and voltages.

The programming logic for the GAL chips was documented in the LATTICE data books - and there have ...

So many of the names I remember from the beginning are departing...

Sad news indeed - thoughts are with his family and friends

I had a QEPIII, it was a good programmer, if a little limited on the eproms it could program by today's standards.

It did seem to offer the potential for expansion though, as the algorithms and circuit were published, but I could not see how you would make use of that in the current gui interface ...

This really is off topic, but given the very diverse range of people on here I though I would ask.

I am after documentation on the GESMFI-1 board, circuit diagram, i/o addresses, pin outs. This is a multifunction peripheral board by GESPAC SA, but can't find much in the way of documentaton for any ...

I believe Dave is taking this, so yes it's no longer available, sorry.

68030 offers better pipelining and faster burst fill memory access that the 68020 doesn't offer. It also supports faster clock rates than the 68020, and still offers the dynamic bus sizing, which makes it significantly easier to connect to a QL bus, than say a 68040 or later variant.
If you have ...

Whopper,

If you do find a circuit diagram for the SGC, I would be interested to have a look - I am keen to know how the 2 74hct244 chips are connected...