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FXP to SGL conversion on FPGA (NI sbRIO-9651, SoM)

Hi everyone,

I’m experiencing an issue with a numeric conversion on the FPGA: from FXP to SGL.

The control board I use is the PED-Board which is equipped with the NI System on Module (formally sbRIO-9651).

I have some parts of the code written in FXP, and now in order to leverage the code portability and control performance I converted the numeric values to SGL. I used the floating-point toolkit recompiled for the SoM.

It seems that a conversion from FXP to SGL and vice versa takes a non-negligible FPGA resources. Probably it would be better to rewrite the code completely in SGL.

Has everyone been experiencing this?

Thanks a lot,

marcodb

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