[time-nuts] Prologix, Linux and bash
jeff at mock.com
Wed Jan 16 15:38:46 EST 2008
I have excellent luck using a Prologix device on a couple of different
machines running ubuntu linux (7.04 and 7.10). I find it totally painless.
You might run usbview and see if the device is being recognized or look
at /var/log/messages while plugging in the device. Something like:
% sudo tail -f /var/log/messages
You should see the device get recognized and a message telling you what
device it is assigned to.
I use the ser2net daemon with the prologix device. This acts as a proxy
for accessing serial devices over the network. This way you can
telnet to the GPIB device from the local machine or over the network.
This makes it really convenient to access GPIB devices over the local
As far as programming the GPIB devices, I use perl, it's a lot cleaner
than a bunch of crazy echo commands in a bash script. The Telnet module
in perl makes it easy to access the ser2net proxy to the GPIB device.
There are a lot of different ways to do it, but that's what works best
> Hi Everyone
> I know that my Prologix device is functioning thanks to Ulrich's EZGPIB.
> I however want to use this device under Linux. My Ubuntu box cannot find
> /dev/ttyUSB0 but a Mepis Linux live CD can.
> I have tried the following commands:
> echo ++auto 0 CR > /dev/ttyUSB0
> echo ++auto 1 CR > /dev/ttyUSB0
> echo ++auto 0 \r > /dev/ttyUSB0
> echo ++auto 1 \r > /dev/ttyUSB0
> echo ++auto 0 \n > /dev/ttyUSB0
> echo ++auto 1 \n > /dev/ttyUSB0
> echo ++auto 0 \r\n > /dev/ttyUSB0
> echo ++auto 1 \r\n > /dev/ttyUSB0
> I have not been able to switch the led on from talk to listen.
> Could someone give me a bash sample of the correct syntax to use?
> Thanks in advance-Patrick
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