National Instruments GPIB-USB-HS via PyVISA on UBUNTU.md

NI_GPIB-USB-HS_PyVISA_UBUNTU.md

National Instruments GPIB-USB-HS + PYVISA on Ubuntu

LINUX-GPIB

Install depedencies:

sudo apt-get install tk-dev build-essential texinfo texi2html libcwidget-dev libncurses5-dev libx11-dev binutils-dev bison flex libusb-1.0-0 libusb-dev libmpfr-dev libexpat1-dev tofrodos subversion autoconf automake libtool mercurial

Checkout the LINUX-GPIB to user home dir:

cd ~
svn checkout svn://svn.code.sf.net/p/linux-gpib/code/trunk linux-gpib-code

Install the kernel part:

cd ~/linux-gpib-code/linux-gpib-kernel
make
sudo make install

Instal the user part:

cd ~/linux-gpib-code/linux-gpib-user
sudo make install

Check if USB dongle is connected:

lsusb | grep GPIB

expected result:

Bus 001 Device 006: ID 3923:709b National Instruments Corp. GPIB-USB-HS

Load kernel module:

sudo modprobe ni_usb_gpib

Update cache for linker

sudo ldconfig

Check if kernel module loaded:

lsmod | grep gpib

expected result:

ni_usb_gpib            36864  0
gpib_common            45056  1 ni_usb_gpib

Create config file

interface {
        minor = 0
        board_type = "ni_usb_b"
        pad = 0
        master = yes
}

File location for Ubuntu:

/usr/local/etc/gpib.conf

Test GPIB configuration:

sudo gpib_config

expected result:

no output, no error

Try to communicate with the device:

sudo ibtest

• d ENTER,
• address of your instrument ex. 3
• w ENTER.
• type *IDN? ENTER,
• r ENTER
• 100 ENTER

Expected result:

Example: KEITHLEY INSTRUMENTS INC.,MODEL 2000,0000,A05 /A02

If that works it means that linux-gpib can talk to the adapter and instrument. Success.

Python3

Install Python3 depedencies

sudo apt-get install python3-dev python3-distutils python3-pip python3-setuptools

Install Python bindings

cd linux-gpib-code/linux-gpib-user/
cd language/python/
sudo python3 setup.py install

Test script

~/testgpib.py

import Gpib
# X is your interface number (usually 0)
# Y is your instrument address (should be configured on the device)
inst = Gpib.Gpib(X,Y) 
inst.write("*IDN?")
print(inst.read(100))

python3 ~/testgpib.py

expected result:

Example: KEITHLEY INSTRUMENTS INC.,MODEL 2000,0000,A05 /A02

PyVISA

Install pyvisa

pip3 install pyvisa

Install pyvisa-py backend

pip3 install pyvisa-py

Install gpib-ctypes

pip3 install gpib-ctypes

Verify configuration

python3 -m visa info

Expected result:

(...)
Backends:
   ni:
      (not important)
   py:
      Version: X.X.X
      GPIB INSTR: Available via Linux GPIB (b'X.X.X r[XXXX]')
      GPIB INTFC: Available via Linux GPIB (b'X.X.X r[XXXXX]')

Test script

~/testvisa.py

import pyvisa
resources = pyvisa.ResourceManager('@py')
# X means your instrument address
k2000 = resources.open_resource('GPIB::X::INSTR')
print(k2000.query('*IDN?'))

python3 ~/testvisa.py

expected result:

Example: KEITHLEY INSTRUMENTS INC.,MODEL 2000,0000,A05 /A02

Sources

While compiling this instruction I used different sources including:

• https://xdevs.com/guide/ni_gpib_rpi/
• https://www.cl.cam.ac.uk/~osc22/tutorials/gpib_usb_linux.html

This wasn't trivial to install and get working correctly, however I am quite sure I managed it now.

There are installation instructions in the INSTALL files which supplement these quite nicely, however the step

cd ~/linux-gpib-code/linux-gpib-user
sudo make install

should be
cd ~/linux-gpib-code/linux-gpib-user
./bootstrap
./configure --sysconfdir=/etc
sudo make
sudo make install

Otherwise it wont install and link all the stuff correctly. This procedure is described in the -user INSTALL file.

The device (ESP300 Motion stage controller) has now positively told me its name through ibtest() so that means i've a channel to work with now.

I solved the issue below. sudo strace gpib_config showed that the config file is at /etc/gpib.conf. Moving the file to this location fixed the issue for me.

I am trying to follow the procedure and have run into an issue. When I execute the command: sudo gpib_config

I get the following error:

failed to configure boardtype: ni_pci
failed to configure board
main: Invalid argument

The device is showing up as expected: Bus 001 Device 003: ID 3923:709b National Instruments Corp. GPIB-USB-HS

I'm running Ubuntu 20.04.4 LTS

I assume this is related to the config file, but I'm not sure what's wrong. Any suggestions?

interface {
        minor = 0
        board_type = "ni_usb_b"
        pad = 0
        master = yes
}

Hi. I'm running into the same issue.

Have you managed to solve it?

Regards

$ cd ~/linux-gpib-code/linux-gpib-kernel
$ make
make -C /lib/modules/uname -r/build V=0 modules
M="/home/integse/linux-gpib-code/linux-gpib-kernel/drivers/gpib"
GPIB_TOP_DIR=/home/integse/linux-gpib-code/linux-gpib-kernel
CONFIG_GPIB_ISA=""
GPIB_CONFIG_PCMCIA="0"
HAVE_DEV_OF_NODE=
GPIB_CONFIG_KERNEL_DEBUG=0
make[1]: Entering directory '/usr/src/linux-headers-6.5.0-35-generic'

ERROR: Kernel configuration is invalid.
include/generated/autoconf.h or include/config/auto.conf are missing.
Run 'make oldconfig && make prepare' on kernel src to fix it.

$ cd /usr/src/linux-headers-$(uname -r)
/usr/src/linux-headers-6.5.0-35-generic$ sudo make oldconfig
LEX scripts/kconfig/lexer.lex.c
YACC scripts/kconfig/parser.tab.[ch]
HOSTCC scripts/kconfig/lexer.lex.o
HOSTCC scripts/kconfig/menu.o
HOSTCC scripts/kconfig/parser.tab.o
HOSTCC scripts/kconfig/preprocess.o
HOSTCC scripts/kconfig/symbol.o
HOSTCC scripts/kconfig/util.o
HOSTLD scripts/kconfig/conf

configuration written to .config

$ sudo make prepare
SYNC include/config/auto.conf.cmd
make[2]: *** No rule to make target 'arch/x86/entry/syscalls/syscall_32.tbl', needed by 'arch/x86/include/generated/uapi/asm/unistd_32.h'. Stop.

I solved the issue below. sudo strace gpib_config showed that the config file is at /etc/gpib.conf. Moving the file to this location fixed the issue for me.
I am trying to follow the procedure and have run into an issue. When I execute the command: sudo gpib_config
I get the following error:

failed to configure boardtype: ni_pci
failed to configure board
main: Invalid argument

The device is showing up as expected: Bus 001 Device 003: ID 3923:709b National Instruments Corp. GPIB-USB-HS
I'm running Ubuntu 20.04.4 LTS
I assume this is related to the config file, but I'm not sure what's wrong. Any suggestions?

interface {
        minor = 0
        board_type = "ni_usb_b"
        pad = 0
        master = yes
}

Hi. I'm running into the same issue.

Have you managed to solve it?

Regards

This worked for me on Debian Bookworm. Instead of /usr/local/etc/gpib.conf, I had to move the file to /etc/gpib.conf. Then when I run sudo gpib_config I get back no errors.