[time-nuts] GPIB help

[Skip Withrow]

Hello Time-nuts, 

This could be opening up a can of worms - but here goes. 

I need some help/direction with programming my 5370B over GPIB.  I have NI 
GPIB-ENET/100 and have install NI's Measurement and Automation software.  
All is good, the software sees the instrument and I can issue commands and 
get responses back.  So far so good. 

Now the tricky part.  I would like to write a program that collects TI 
values to feed to TVB's ADEV program.  First I should ask - is there one out 
there that someone is willing to share?  Being that I'm pretty ancient in 
the programming world and have not caught up with VB or C.  So, I have been 
trying to write a BASIC program and use direct access to the gpib-32.dll.  
It has been very frustrating!  I can seem to get the global addresses of the 
ibxxx functions, but no luck on getting error and status information back 
(iberr, ibsta).
For example:
SYS "LoadLibrary", "GPIB-32.DLL" TO gpib%
SYS "GetProcessAddress", gpib%, "ibdev" TO ibdev%
seems to return an address for the ibdev function. 

But,
SYS "LoadLibrary", "GPIB-32.DLL" TO gpib%
SYS "GetProcessAddress", gpib%, "iberr" TO iberr%
does not seem to return the address of the iberr global variable. 

Any help appreciated.
Thanks in advance.
Skip Withrow