Experimental Physics and
Industrial Control System

Eric Norum <[email protected]> · Thu, 16 Jan 2003 09:01:15 -0600

"M.C.Shao" wrote:
> 
> hi,
> I am booting the EPICS example application on  i386-rtems target with a new rtl8139 driver. The driver has been tested successfully.
> when "starting the application" during booting process, an error was delivered, the error message is:
> --------------------
> filename="../dbLexRoutines.c" line number=238
> I/O error dbRead opening file db/dbSubExample.db
> Starting iocInit
> iocInit:All initilization complete
> epics>
> --------------------
> As above indicate, all initilization complete, and I could type the shell command, such as dbl, dbpr, etc.
> But when I use medm to connect to the records of the ioc, exception was encounterd.The following are messages that appear in the medm message window:
> ---------------------
> ...
> Thu Jan 16 21:47:10 CST 2003
> medmCAExceptionHandlerCb: Channel Access Exception:
>   Channel Name: Unavailable
>   Native Type: Unavailable
>   Native Count: 0
>   Access: Unavailable
>   IOC: Unavailable
>   Message: Virtual circuit disconnect
>   Context: 166.111.32.240:5064
>   Requested Type: TYPENOTCONN
>   Requested Count: 0
>   Source File: ../cac.cpp
>   Line number: 1532
>  ...
> -------------------------
> "166.111.32.240" is the ip address of the ioc.
>  What's the reason?any suggestions are appreciated. Thanks in advance.

Does the "db/dbSubExample.db" file exist on your TFTP server?  Is it
readable by all?   

-- 
Eric Norum <[email protected]>
Advanced Photon Source
(630) 252-4793

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System