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Downsampling Block Invokes FIR even if not used - Enhancement Request

SigmaDSP & SigmaStudio PolEx Feb 27, 2019 00:00 1 replies Original on forum ↗
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PolEx Question
Feb 27, 2019 00:00

I use the Downsampling blocks in my design to convert from 192kHz to 12kHz sampling rate. The data is already bandlimited so I do not use the FIR option. However, it appears that the FIR code and coefficients are always included. I assume that's because the FIR ON/OFF can be changed during execution.

It would be great to have a Downsampling block that did not include the FIR option and was more economical in terms of resources when the FIR is not needed.

DaveThib Reply
Feb 28, 2019 00:00

Hello PolEx,

I will add that suggestion for an update. The FIR ON/OFF is not able to be changed during program execution. If you watch the capture window you will not see any traffic when you click on the filter option.

Dave T