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Re: crio 9063,ni 9467 and ni9234 time sync using gps(pps)

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YES. 40Mhz clock....

When using sequence structure  and fifo

IF.... 

array time : Fpga Timekeeper time(100Hz)  =  0 ,  0.01 , 0.02 , 0.03 , 0.04 , 0.05 , 0.06 , 0.07 , 0.08, 0.09 , 0.10 ~~~~ 1

array Ai     :                                     (10 Hz)   =  0  , 0.1 , 0.2 , 0.3 , 0.4 , 0.5 , 0.6 , 0.7 , 0.8 , 0.9 , 1

if i get the data sampling frequence 10Hz and build array using fifo,

 

1 sec result is

get array time : Fpga Timekeeper time(100Hz)  =  0 ,  0.01 , 0.02 , 0.03 , 0.04 , 0.05 , 0.06 , 0.07 , 0.08, 0.09 , 0.10

get array Ai     :                                     (10 Hz)   =  0  ,   0.1 ,   0.2 ,   0.3 ,   0.4   , 0.5 ,   0.6 ,   0.7 ,   0.8 ,  0.9 ,      1

 

2 sec result is

get array time : Fpga Timekeeper time(100Hz)  =  1 ,  1.01 ,1.02 , 1.03 , 1.04 , 1.05 , 1.06 , 1.07 , 1.08, 1.09 , 1.10

get array Ai     :                                     (10 Hz)   =  1 ,  1.1 ,  1.2 ,   1.3 ,   1.4   , 1.5 ,   1.6 ,   1.7 ,   1.8 ,  1.9 ,   2

 

I think this problem is based on the number of elements in the sequence structure and the FIFO at the same time.

How shall I do it?

I want to get an array of matching two groups.

 

And if I do as attached, if I call the FIFO set at 5120 elements, will there be TIME matching each AI element?


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