Check for Trigonometric Function block for LUT-based approximation method

Check ID: com.mathworks.HDL.ModelChecker.runUnsupportedLUTTrigFunChecks

Check ID:com.mathworks.HDL.ModelAdvisor.runUnsupportedLUTTrigFunChecks

Check for Trigonometric Function blocks in a model that use an approximation method based on lookup tables (LUT).

Available with Simulink® and HDL Coder™.

Description

This check displays a warning if your Simulink model contains Trigonometric Function blocks that have Function set to atan2 and Approximation method set to Lookup.

Results and Recommended Actions

To fix this warning, set Approximation method to CORDIC for Trigonometric Function blocks that have Function set to atan2.

Capabilities and Limitations

  • Runs on library models

  • Analyzes content in all masked subsystems

  • Allows exclusions of blocks and charts

  • Does not analyze the content of library linked blocks

See Also

Trigonometric Function.