Generating math expression LUT using variable from workspace

I am following this guide for creating a LUT for a custom math function: Replace a Custom Function with a Lookup Table - MATLAB & Simulink - MathWorks Nordic

I must ensure consistency between the model and the HDL code and therefore wish to pass a confgiuration parameter from the workspace to the math function, but the approach for doing this is unclear to me.

I see that the -globals flag is not supported by "fiaccel -float2fixed". I tried using the -args option, but this does not seem like the correct approach.

How can I pass a constant configuration parameter to the function used for generating the LUT?

Answer 1

[Andy Bartlett]

I assume you are modeling your design in Simulink.

I suggest you look at using the Function Approximation tooling to create an approximation using a Simulink Lookup Table block.

This tooling provides several optimizations such as data types, size of lookup table, etc. Please check out the optimization options, especially this one.

HDLOptimized — Whether to generate HDL-optimized approximate

If you need a MATLAB based approximation instead of one using the Simulink Lookup Table, change the default for this option.

ApproximateSolutionType — How to output optimized lookup table

'Simulink' (default) | 'MATLAB'