Re: Enabling drvLinuxGpib (linux-gpib)

[Gasper Jansa <gasper.jansa@cosylab.com>]

Dear Emmanuel

You can find the meaning of the EDVR here:
http://linux-gpib.sourceforge.net/doc_html/r536.html

-1 address is used when asynManager wants to connect to the port driver 
and connect to gpib card.
It searches for gpib card with name defined in first parameter to 
GpibBoardDriverConfig, in you case
L0.

You must set name option in gpib.conf file like this:

interface {
       minor = 0       /* board index, minor = 0 uses /dev/gpib0, minor 
= 1 uses /dev/gpib1, etc. */
       board_type = "cbi_isa"  /* type of interface board being used */
       name = "L0"     /* 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 = 0x310    /* Base io ADDRESS                  */
       irq  = 7        /* Interrupt request level */
       dma  = 0        /* DMA channel (zero disables)      */

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

Hope this helps.

Best Regards
Gasper

Emmanuel Mayssat wrote:
> Hello,
>
> I am trying to communicate over linux-gpib with asyn.
> My asyn interface is configured with 
> GpibBoardDriverConfig("L0",1,0,3,0)
>
> (At this point, that's the ONLY COMMAND I have in my stcmd file)
>
> But when I start the ioc ... BOOM !
>
>
> 2007/08/03 17:54:53.352 L0 addr -1 : EDVR 0: OS error.
>
>
> 2007/08/03 17:54:53.353 asynManager::asynConnectCallback, port L0 error
> calling
> asynCommon->connect
> 2007/08/03 17:54:53.353 L0 addr -1 : EDVR 0: OS error.
> 2007/08/03 17:54:53.353  136742344 autoConnect could not connect
> 2007/08/03 17:54:53.353 L0 addr -1 : EDVR 0: OS error.
> 2007/08/03 17:54:53.353 asynManager::asynConnectCallback, port L0 error
> calling
> asynCommon->connect
>
>
> The error seesm to be coming from my gpib libraries.
> What does EDVR mean? Where does it get this -1 address? 
> Is my computer smoking? 
> My primary of interface is set to 0 in gpib.conf...
> Am I missing gpib options in my stcmd? Probably...
>
> What are common linux-gpib/drvLinuxGpib options?
>
> Have a great weekend !
>
> --
> E
>
>
>
>