I would like to do some moving averaging on my FPGA based on building the sum of the values to around 200 data points and then removing the oldest value and adding the newest value and averaging them all that way I'm only needing to acquiring one new point once the data point have reached the 200 limit but I have 16 channels and FPGA does not support 2-D arrays and I can do it with 16 1-d arrays but I don't think there will be enough resources on the FPGA. Any one have any ideas how i can do this. I guess the main challenge is having a way to coninuously store the last 200 or N points so that I can subtract the oldest value other than a two d array or multiple 1-d arrays. I am trying to do it this way as well so that I don't need to wait each time and acquire 200 or N samples and then avaerge them each time for a new averaged value. I've already done this on the real time side but it seems to use quite a few resources and slow down my code. Maybe there is a better way to do it on real tiem if it can't be done on the FPGA?

LabVIEW

Christian_M's approach can be modified to use a block ram FIFO pretty easily and would fit in the fpga.

Message 11 of 11

(417 Views)