Stan,
I have not had any experience with the Agilent E2940A boards. However, when using a Compact PCI board in a PXI chassis, check if the board uses the J2 connector and how does it use it. This is because the PXI specification takes the design rules established in the CompactPCI specification and expands on them. The J1 connector has the exact same signal mapping for both specifications, and all signals necessary for 64-bit operations are included on the J2 connector. The differences in the two specifications lie in the signals on the J2 connector that are used for user-specified purposes in the CompactPCI specification. For PXI, these lines are used for the trigger bus lines, the reference clock, the local bus lines, and the star trigger lines. You can see more de
tails about both specifications in the PXI System Alliance web page (www.pxisa.org) and in the PICMG (www.picmg.com).
It also seems you are interested in developing your own PXI boards.
There are some breadboards available out there that might facilitate the design of your PXI boards. In the links below, you can see more details about some of the PXI breadboards in the market:
1) PXIT model PX2000-107 (www.pxit.com)
2) Chroma model 52901 (www.chromaate.com)
3) PLDA model CPCI10K-PROD (www.plda.com)
Hope this helps,
Claudia Lorente
Applications Engineer
National Instruments
