Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 07 Aug 2001 13:42:25 -0500

Robert Willson wrote:
> 
> Is there a specific VxWorks kernel configuration that is required to use
> the GPIB driver in EPICS?  I am asking specifically about changing the
> files configAll.h and sysLib.h, but my problem now is that all GPIB
> requests return a "GPIB TIMEOUT (while talking)" unless I use a specific
> kernel, and unfortunately I do not have information about what options
> were used to compile the kernel.

What GPIB interface are you using?  If it's the NI-1014 then your BSP
needs to have sysA24Malloc() defined for the particular CPU - the 1014 can
only do DMA into the VME A24 space, but for boards with more than 8MB of
RAM the default vxWorks mappings don't make RAM available in A24.  I can
provide the necessary sysLib.c source on request for the mv162, mv167,
mv172, mv2100 and mv2700 CPUs, although I can't guarantee that it will
work straight off as we have other changes in our BSPs so you might have
to do some integration work.

- Andrew
-- 
The world is such a cheerful place when viewed from upside-down
It makes a rise of every fall, a smile of every frown

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System