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NI Discussion Forums :
Most Active Hardware Boards :
Instrument Control (GPIB, Serial, VISA, IVI) :
opensuse 10.3, NI-VISA 4.2 and Prologix GPIB-USB controller: almost (?) working
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opensuse 10.3, NI-VISA 4.2 and Prologix GPIB-USB controller: almost (?) working
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 der_gaertner
Regular
Message 1 of 7
Viewed 4,019 times
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Hallo
Like the subject line says: I think I am struggeling on the last couple meters
with getting the Prologix GPIB-USB controller working using NI-VISA.
********** What works: ***********************************************************************
1) The device: http://prologix.googlepages.com/ is recognized by the kernel:
> lsusb:
Bus 001 Device 004: ID 0403:6001 Future Technology Devices International, Ltd 8-bit FIFO
> ls -l /dev/ttyUSB0
crw-rw---- 1 root uucp 188, 0 Dec 4 15:39 /dev/ttyUSB0
> lsmod | grep ftdi
ftdi_sio 37128 0
usbserial 35252 1 ftdi_sio
usbcore 123756 6 ftdi_sio,usbserial,nikal,ehci_hcd,uhci_hcd
2) NI-VISA 4.2 installs fine:
> uname -r
2.6.22.13-0.3-default
- kernel-source and kernel-syms packages are istalled
- make cloneconfig
- make modules_prepare
- make modules
- install NI-VISA 4.2 im kernel source directory:
.......
Running NI-KAL Post Installation Script ...
Running NI-PAL Post Installation Script ...
Running NI-RPC Post Installation Script ...
Running NI-ORB Post Installation Script ...
Running NI-DIM Post Installation Script ...
Running PXI Services Post Installation Script ...
Running NI-VISA Runtime Post Installation Script ...
Installation completed successfully.
> cat /etc/profile.local
VXIPNPPATH=/usr/local/vxipnp
export VXIPNPPATH
export LD_LIBRARY_PATH=/usr/local/vxipnp/linux/bin:$LD_LIBRARY_PATH
- reboot
********** not sure how to interprete ********************************************
all done as root on a laptop without generic serial port:
> visaconf
-> Warning! Could not find any dynamic Visa Resources.
Maybe the adapter is a static resource?
-> edit ASRL1::INSTR
binding: /dev/ttyUSB0
Baudrate (9600), parity (none), stop bits (1), flow control (none) remain unchanged as prologix manual states that they are irrelevant.
Good sign:
State of device changes with plugging in from: uncertain to ready.
********** surely not good *******************************************************
> NIvisaic
-> unable to find resources using expression "?*"
Return status code 0xBFFF0011
Status name: VI_Error_RSRC_NFOUND
Any help would be appreciated, thanks
Matthias
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12-04-2007 04:11 PM
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Re: opensuse 10.3, NI-VISA 4.2 and Prologix GPIB-USB controller: almost (?) working
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 Sarah_S
Proven Veteran
Message 2 of 7
Viewed 3,999 times
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Matthias,
To use a GPIB device you will need to install NI-488.2. We currently do not have a driver that is available specifically for SUSE 10.3. We do have a driver that have been tested on SUSE 10.0-10.1 - which is NI-488.2 2.5 - Linux - 32 Bit. Also there is a Beta driver that has been tested for SUSE 10.2 - which is NI-488.2 2.5 - Linux - Beta.
These driver may work on your system. But please remember that they have not been tested on SUSE 10.3
Thank you very much.
Sarah S.
Applications Engineering
National Instruments
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12-05-2007 08:30 AM
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GPIB drivers are not needed
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der_gaertner
Regular
Message 3 of 7
Viewed 3,985 times
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Dear Sarah
Thanks for the quick answer, but I am afraid the missing NI-488.2 drivers are not the source of the problem.
The Prologix webpage states:
Prologix GPIB-USB controller provides a virtual serial interface to
communicate with instruments, while handling all GPIB protocol details
for you. Any test framework, or programming environment, that provides
access to serial ports is compatible with Prologix GPIB-USB controller.
Also I am able to talk to the adapter using the terminal program kermit:
> kermit
C-Kermit 8.0.211, 10 Apr 2004, for Linux
Copyright (C) 1985, 2004,
Trustees of Columbia University in the City of New York.
Type ? or HELP for help.
(/root/) C-Kermit>set line /dev/ttyUSB0
(/root/) C-Kermit>set terminal echo on
(/root/) C-Kermit>connect
Connecting to /dev/ttyUSB0, speed 9600
Escape character: Ctrl-\ (ASCII 28, FS): enabled
Type the escape character followed by C to get back,
or followed by ? to see other options.
----------------------------------------------------
++ver (enter)
Prologix GPIB-USB Controller version 5.0
Which also excludes a faulty device as source of the problem.
Best regards
Matthias
P.S. As I live in Austin, I can come by if you want to look yourself at the adapter :-) .
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12-05-2007 12:31 PM
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file access
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der_gaertner
Regular
Message 5 of 7
Viewed 3,962 times
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Shawn,
I do work as root (at least right now in the debugging phase) ; I also tried
> chmod 666 /dev/ttyUSB0
which didn't help.
However I regonized that NIvisaic never tries to open /dev/ttyUSB0 while visaconf does:
> strace visaconf 2>&1 |grep tty
open("/dev/ttyUSB0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS1", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS2", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS3", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS7", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS6", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS5", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS4", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS3", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS2", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS1", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
open("/dev/ttyS0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 9
>strace NIvisaic 2>&1 |grep tty
open("/dev/ttyS7", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS6", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS5", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS4", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS3", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS2", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS1", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
Where does NIvisaic lern from which devices to open?
Thanks
Matthias
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12-05-2007 06:10 PM
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Found workaround, but this looks more like a bug than a feature
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der_gaertner
Regular
Message 6 of 7
Viewed 3,922 times
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Sarah and Shawn
If the mountain doesn't come to the prophet ..... I tried a hardlink:
> rm /dev/ttyS4
> ln /dev/ttyUSB0 /dev/ttyS4
> ls -l /dev/ttyS4
crw-rw---- 2 root uucp 188, 0 Dec 7 10:17 /dev/ttyS4
So if I now start NIvisaic:
> strace NIvisaic 2>&1 |grep tty
open("/dev/ttyS4", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS7", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS6", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS5", O_RDWR|O_NOCTTY|O_NONBLOCK) = -1 ENXIO (No such device or address)
open("/dev/ttyS3", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS2", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS1", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyUSB0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS1", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS2", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS3", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyUSB0", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
open("/dev/ttyS4", O_RDWR|O_NOCTTY|O_NONBLOCK) = 10
in the NIvisaic window the prologix device shows up twice, as ASRL1::INSTR and ASRL5::INSTR.
And the best: BOTH ENTRIES WORK e.g. with the Basic Serial Read and Write.vi
(set enable Termination char to off in the Visa Configure Serial Port SubVI).
This looks like very much as if NIvisaic stops scanning if it doesn't find anything
at /dev/ttyS? but does go further otherwise.
Matthias
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12-07-2007 10:43 AM
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