fpga

[EddyCurrent]

I have a Compact Rio with 5 C series Modules 9205 AI. I modified Labview's example code 9205 Advanced IO, I want to have access to 32 different channels at any time from any number of combinations of modules (this is done). When I run just one channel and read the IO FIFO I

get the correct voltage (5.022v)followed by (1.000v) and sequence repeats.  Does anyone know why the 1.000v?

I've used a power supply and DC batteries (don't think it's the power). Any suggestions greatly appreciated. 

[RobCole]

Can you post the code so we can look at it?

How quickly are you accessing the FIFO?

     Rob

[EddyCurrent]

I found out the cause already. If you input a wrong value into a FIFO's IO Sample Method Node in the FPGA vi (wrong value = 0, 1, 2... rather than say 10640 = channel 3) the data output is 1.000. I'll post the code shortly.

[RobCole]

Glad you found the problem. And thank you for posting what the solution turned out to be. Makes searching on similar issues much easier.

     Rob