fpga parallel code execution problem

[Jasper_B]

Hi,

I have a problem with the parallel execution of code on the FPGA of a cRIO-9073.
The execution time of the code is also longer then expected.
The problem is described in the attached PDF file.

Kind regards,

Jasper Beurms

[GerdW · Accepted solution]

Hi Jasper,

the first problem is due to DATAFLOW! THINK DATAFLOW!

You have three sequences running in parallel. The loop iteration time depends on the slowest item in the loop. So you don't need to wonder why the "low frequency sequence" inluences the other sequences?

The 2nd problem can't be discussed by looking at pictures. What are those wait function? milliseconds, microseconds, ticks?

Did you know the IO nodes also take some processing time?

[Jasper_B]

The wait functions are in ticks. the IO has a propagation delay of max 55ns.

Thanks for the quick response.

Best regards,

Jasper