TNT4882 not detected on bus

[Polson]

I am attempting to integrate the TNT4882 with a microcontroller. I am having no issues communicating between those chips, however I have not been able to get the device to communicate with the CIC. I am using the microcontroller to setup the chip as described in the TNT4882 programmer reference manual. The device, however, is not being recognized by the CIC when I attach it to the bus. I know this is rather vague, but what could be going wrong?

[Randy Solomonson]

Hello-

As a first source of trouble shooting and reference, I would suggest looking through the following resources:
-GPIB ASICs Resource Library --> http://zone.ni.com/libraries/ (then click GPIB then GPIB ASICs)
-TNT4882 Manual --> http://www.ni.com/pdf/manuals/320724.pdf
-General Register Level Programming Information --> http://ni.com/support/gpib/reg_prog.htm
-Basic shell program for interfacing to a TNT4882 chip --> ftp://ftp.ni.com/support/gpib/misc/ESP-488.ZIP

Randy Solomonson
Applications Enginner
National Instruments

[Polson]

If my initialization code was working correctly, would the TNT answer up as a instrument on a GPIB bus? If it should, do you have a piece of example code that follows the initialization process as described in the 320724-01 manual?