Yes, I believe that you are correct: only +5V to the PC/104 bus
interface. But the problems don't necessarily stop there. Even boards
that only require +5V are not guaranteed to work. I've tried a few
commercial and proprietary PC/104 boards with the TS-7200 and TS-7260,
and couldn't get any to work reliably in standard PC/104 mode. Don't
know if the CPLD running the bus was wrung out with a lot of different
boards.
But many new "standard" x86 boards, especially those that use chips
like the SC520 don't run a good percentage of peripheral boards. So
much for a relatively simple, old standard.
That said, however, we've had great success using the PC/104 bus
connector on a TS-7260 in fast, non-standard, mode to communicate with
a proprietary coprocessor board at over 2MB/sec.
Frank
--- In "j.chitte" <> wrote:
>
> Hi,
>
> just wanted to make sure I was not overlooking something obvious.
>
> TS make much play of the provision of PC104 industry std interface
> that allows connection to a wide range of third party off the shelf
> hardware. However on closer examination it seems that they have a
> fairly non standard implementation of the industry standard.
>
> In particular is seems that of the standard +/-5V , +/-12V normally
> available on PC104 the TS pinout only provides +5V.
>
> I need -5V to power some external buffers for the ADC.
>
> Before I redesign my hardware I'd just like to check that I'm not
> missing something stupid. Am I correct in thinking there is no neg
> voltage available on TS72xx ?
>
> TIA.
>
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