jbv wrote:
> Hi,
>
> Is there any possibility to send / receive data
> to / from a board on a PCI slot through a
> MC script ?
Then I replied:
> I wanted to ask this very same question just when I read yours. I'm
> developing driver software for DMX (a system for controlling spotlights,
> lasers, stroboscopes etc.), and a PCI card is used here.
>
> For this purpose, I have to write to and read from the card, i.e. reading
> from and writing to some memory addresses.
>
> This can be done with a DOS shell, but as you may understand, timing is a
> very important thing at performances, and you can't manage that with a
> shell, which is extremely slow.
And then Robin-David Hammond wrote:
> if you want to access the VME, SBUS, NuBUS or PCI directly you are going to
> need a gen3 language you want C (or asm if you realy like to get dirty or C++
> is you have an unhealthy obsession with mediocrity )
>
> and probably an RTOS like LynxOS or QNX unless you want to drasticaly
> overpower
> a linux or bsd box and use POSIX 1003.b (?) alarms and the like. Drastic
> over-kill in the CPU department is fairly cheap these days. for the CPU power
> you are likly to need a lowend MIPS, PPC or early 80586.
>
> metacard may still be great choice for a front end, but i dont think it will
> ever be anything other than a Gen4 language and having PEEK/POKE is
> generaly inconcistant with gen4 languages.
>
> if you were to open a pipe into the control programme, you could use MC to
> feed
> it simple instructions.
>
> the concept of running MC setuid root, and giving it direct access to ram
> scares
> the hell out of me, a buffer overrun could have severe consequences.
>
> personly i'd be more likly to go with an embeded solution, get the MachZ
> x86-on-a-chip, slap the PCI card to that, and then control it via USB, Serial
> IO
> or TCP.
>
>
> It has been noted that when the only tool you have is a hammer, every problem
> starts to look like a nail. I myself have been guilty of this once or
> twice....
Wow! I don't think I quite understand this. (It can be both my bad English
and my unawareness of all 'deep' terms.) Can you explain in simple words
what your suggestion on this is?
> RE
Thank you very much in advance,
Sjoerd
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