GPIB programming using c

tanuj22 · ‎09-16-2009

Hi all,

I need to program an old tektronix machine using the gpib port.

I have a c application written by someone for it. however on running the application I get an error

libgpib: ibBoardOpen failed to open device file /dev/gpib0
libgpib: No such device or address
libgpib: error in is_cic()!

I installed the ni488.2 driver and ni visa 4.5 on my machine following the link

http://decibel.ni.com/content/docs/DOC-6742#cf

however I was still having the same problem

lsspci -vv

01:09.0 Communication controller: National Instruments PCI-GPIB (rev 02)
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
    Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR+ INTx-
    Latency: 255, Cache Line Size: 64 bytes
    Interrupt: pin A routed to IRQ 18
    Region 0: Memory at ff8ff800 (32-bit, non-prefetchable)
    Region 1: Memory at ff8f8000 (32-bit, non-prefetchable) [size=16K]
    Kernel driver in use: ni488

cat /etc/gpib.conf
/***********************************************************************
GPIB.CONF IEEE488 library config file
-------------------

   copyright            : (C) 2002 by Frank Mori Hess
                          (C) 1994 by C.Schroeter
   email                : fmhess@users.sourceforge.net
***************************************************************************/
/***************************************************************************
*
*   Syntax:
*
*         interface { ... } starts new interface board section
*         device {...} device configuration
*
***************************************************************************/

/* This section configures the configurable driver characteristics
* for an interface board, such as board address, and interrupt level.
* minor = 0 configures /dev/gpib0, minor = 1 configures /dev/gpib1, etc.
*/

interface {
    minor = 0    /* board index, minor = 0 uses /dev/gpib0, minor = 1 uses /dev/gpib1, etc. */
    board_type = "ni_pci"    /* type of interface board being used */
    name = "violet"    /* optional name, allows you to get a board descriptor using ibfind() */
    pad = 0    /* primary address of interface             */
    sad = 0    /* secondary address of interface           */
    timeout = T3s    /* timeout for commands */

    eos = 0x0a    /* EOS Byte, 0xa is newline and 0xd is carriage return */
    set-reos = yes    /* Terminate read if EOS */
    set-bin = no    /* Compare EOS 8-bit */
    set-xeos = no    /* Assert EOI whenever EOS byte is sent */
    set-eot = yes    /* Assert EOI with last byte on writes */

/* settings for boards that lack plug-n-play capability */
    base = 0    /* Base io ADDRESS                  */
    irq = 0    /* Interrupt request level */
    dma = 0    /* DMA channel (zero disables)      */

/* pci_bus and pci_slot can be used to distinguish two pci boards supported by the same driver */
/* pci_bus = 0 */
/* pci_slot = 7 */

master = yes /* interface board is system controller */
}

/* This is how you might set up a pcIIa board on /dev/gpib1, uncomment to use. */
/*******************
interface {
    minor = 1
    board_type = "pcIIa"
    pad = 0
    sad = 0
    timeout = T3s

    eos = 0x0a
    set-reos = yes
    set-bin = no

    base = 0x2e1
    irq = 7
    dma = 1

master = yes
}
*********************/

/* Now the device sections define the device characteristics for each device.
* These are only used if you want to open the device using ibfind() (instead
* of ibdev() )
*/

device {
    minor = 0    /* minor number for interface board this device is connected to */
    name = "voltmeter"    /* device mnemonic */
    pad = 7    /* The Primary Address */
    sad = 0    /* Secondary Address */

    eos = 0xa    /* EOS Byte */
    set-reos = no /* Terminate read if EOS */
    set-bin = no /* Compare EOS 8-bit */
}

device {
    minor = 0
    name = "scope"
    pad = 8
    sad = 0
}

Do I need to modify my gpib.conf file?

ls -la /dev |grep gpib
crwxrwxrwx   1 root   gpib    160,   0 2009-09-16 22:48 gpib0
crw-rw----   1 root   gpib    160,   1 2009-09-16 22:48 gpib1
crw-rw----   1 root   gpib    160, 10 2009-09-16 22:48 gpib10
crw-rw----   1 root   gpib    160, 11 2009-09-16 22:48 gpib11
crw-rw----   1 root   gpib    160, 12 2009-09-16 22:48 gpib12
crw-rw----   1 root   gpib    160, 13 2009-09-16 22:48 gpib13
crw-rw----   1 root   gpib    160, 14 2009-09-16 22:48 gpib14
crw-rw----   1 root   gpib    160, 15 2009-09-16 22:48 gpib15
crw-rw----   1 root   gpib    160,   2 2009-09-16 22:48 gpib2
crw-rw----   1 root   gpib    160,   3 2009-09-16 22:48 gpib3
crw-rw----   1 root   gpib    160,   4 2009-09-16 22:48 gpib4
crw-rw----   1 root   gpib    160,   5 2009-09-16 22:48 gpib5
crw-rw----   1 root   gpib    160,   6 2009-09-16 22:48 gpib6
crw-rw----   1 root   gpib    160,   7 2009-09-16 22:48 gpib7
crw-rw----   1 root   gpib    160,   8 2009-09-16 22:48 gpib8
crw-rw----   1 root   gpib    160,   9 2009-09-16 22:48 gpib9

lsmod | grep gpib

gpibprtk 261012 0

nipalk 1404272 8 NiViPciK,nipxirmk,nidimk,niorbk,gpibprtk

And I can see my device when I type visaconf

Am I doing something wrong here? or is my understanding that installing visa can help this C program find my device

also a very basic thing

ibtest fails

ibtest
Do you wish to open a (d)evice or an interface (b)oard?
(you probably want to open a device): b
enter name of interface board (or device) you wish to open: ni_pci
trying to open board named 'ni_pci'
failed to open board

Pease suggest as to what shoud I do? to

make the ibdev() function to work

Linux Users

GPIB programming using c

GPIB programming using c