On 10/10/11 8:10 AM, Bob Camp wrote:
Hi
64 bit Windows 7 is the most restrictive OS I have seen so far in
terms of drivers. 32 bit is a bit more forgiving. I would *guess*
that 32 bit Windows will be a bit of a dinosaur three to five years
from now. Just as you are still running Win 98, that does not mean
other versions will be dead and gone. Only that a pretty cheap PC
down at the big box store of your choice likely will not have a 32
bit OS on it. I think the restrictions in 64 bit Win 7 are the ones
you need to worry about for a "compatible with everything" long term
purchase.
As consumer PCs change from a "computer" to a "media and interaction
device" the lockdown will continue.
That said, The newer NI PCI cards do have drivers. The same is true
of the current production NI cards (all flavors). I'd bet it's true
of the current production Prologix. Strictly speaking, the serial to
GPIB boxes don't need drivers as much as they need software adapted
to them. The same is true of the ethernet to GPIB boxes. That
software may be a bear to write, but it's still easier than writing a
driver that Windows will accept as valid.
MUCH easier, no bear, no raccoon, not even a dog to write.
And as far as the Prologix Ethernet/GPIB widgets go, the protocol is
published, simple, etc. There's python examples out there for all manner
of useful stuff. For the vast majority of GPIB control/read back stuff,
I would expect it to work forever. I wish my 1553 boxes had such a
simple interface.
You just use BSD sockets and go for it.
cmd = "*RST"
sock.send(cmd + "\n")
time.sleep(1.0)
CheckError()
pretty darn simple, eh?
def CheckError():
sock.send("SYST:ERR?\n")
sock.send("++read eoi\n")
s = None
try:
s = sock.recv(100)
except socket.timeout:
s = ""
print s
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