PCIe-6738

[bzong1]

I recently bought PCIe 6738, which was supposed to have 4 counters.

However, from the look at the device pinouts of the card, it seems that there are actually 2 counters that can be used simultaneously.

Essentially, ctr0=ctr2 and ctr1=ctr3. If one cant use the 4 "available" counters at the same time, can one say the board actually has 4 counters?

I don't know if I am missing something but it would be great if could get some clarification.

Thanks.

[Kevin_Price]

While that pinout surprised me too, I think you'll find that you can have the use of all 4 counters.  However, you'll apparently need to specify that some of them use non-default PFI pins for their operations.

I guess that device prioritized so many pins for the 32 AO channels (and their respective grounds), that they had to limit the # of PFI pins to 8 in order to use the normal 68-pin connector.  As a result, some counters share default assignments.  Fortunately, most counter tasks will only need to use 1 or 2 of them so you're likely to be able to make use of all 4 counters.

-Kevin P