Not Able access all GPIO Pins in NI-FlexRIO 1487 Card

[JishanK]

Hi All!

I want to access of all GPIO PINs of NI PXIe-1487 card but IO Socket it is not showing SO Channel MFP Pin 5, 9, 10 & in SI Channel we don't have access of MFP Pin 2,3 Output . but is available in Serializer Maxim. It is possible can you please tell how I can I access or can I get a reason why I cannot access these MFP Pins.

Thanks

[sergiovelderrain]

Hi!, 

The MFP naming convention may not match the GPIO, i would take a closer look at the FPGA code portion that makes the GPIO routing to better understand which one is which. You have to keep in mind that those "MFPs" are used to wire a GPIO from a deserializer to a serializer (or the other way around), so i wouldnt be surprised that GPIO X is not connected to MFP X. 

It has been a while since your post, but if you can explain in more detail what you are trying to do, I can take a closer look. Are you using the latest FlexRIO version? 

Assuming you are trying to read a GPIO transition to route it from serializer to deserializer or the other way around, making the proper configuration on the maxim chip (enable GMSL reception... transmission... etc) and routing it from PXIe 1487 configuration would do the trick.