The Sinclair QL Forum

These days you can get a small PSU with a single molex connector rated at 2A. The 68040 alone can draw almost 8W, so 2A is not sufficient. I'm not going to specify the supply current, as I don't know the ISA cards and peripherals used. Why not measure the actuall current for your configuration and ...

Chr$ wrote:out of interest does it actually use the +12v on it's molex input connector - all the board is no doubt 5v but I wonder if ISA/serial connections are what require the 12v?

The +12V is required for the ISA bus, the Q40/Q60 generates -12V from it, also.

Chr$ wrote:4. I understand that normally the 2nd ISA slot was an Ethernet card. What make/model was this? (so I can potentially source one).

Non plug&play NE2000 compatible ISA cards, typically RTL8019AS chipset.

vanpeebles wrote:Hahaha, a DOM is a disc on module, it's a small plug in ide flash storage that fits nicely (and it's powered by the qubide)

http://www.zen70509.zen.co.uk/ql/dom.jpg

Oh my goodness! A white QL!

Alternatively there is some commented out code that can produce the XTcc trailer known from XTC68 instead. Thanks Marcel. That's a good idea, as the XTcc trailer is the standard QL cross compiler output, which one gets from QDOS-GCC also, and from cross assembly. Classic tools for native filesystem...

mk79 wrote:Unlike Peter who is generally annoyed by the existence of emulators I think a native compiler could help adoption quite a bit.

Well I use emulators and even gave my recommendation for an emulator. No idea what the purpose of such obviously wrong remarks is.

Recently I had a short but fascinated look at NetBSD/68k, because it supports a plain 68000 target with a primitive MMU. And not only that, but it even has a complete distro - which would save much work compared to Linux if I want it on the Q68. (Easier to add a primitive MMU than dealing with ucLi...

martyn_hill wrote:Is a direct connection to the relevant powerline preferred over using a pull-up/down resistor?

No. Both is equally good for HC/HCT. For LSTTL a resistor around 1K to VCC is best.

Unlike regular TTL and derived families, which kind of default to high, CMOS is really floating in a VERY high impedance state so all sorts of electromagnetic garbage can influence them resulting in unused gates processing fake signals, increasing power drain and regenerating said EM garbage. Good ...

I actually have ported my QPCPrint ESC/P2 printer emulator from Delphi to Lazarus last year, so while I don't use the 68k backend I'm highly impressed with the whole project and downright thrilled that there is a QL cross compiler. Slightly off topic, but why did that require porting? I was under i...