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CCS/CC3220S: Compiler optimization

Part Number: CC3220S

Tool/software: Code Composer Studio

Hi,

My code is too big for CC3220S and memory is not enough. However, I tried changing compiler optimization setting (Project -> Show Build Settings... -> Optimization -> Optimization level) from "off" to "2-Global Optimizations" and the compilation went through!

I don't know all detailed processes that happen when the mentioned optimization setting is selected, so I was wondering if there are any caveats that I should be aware of when changing the optimization setting from "off" to "2-Global Optimizations" 

.

Your guidance is much appreciated.

Thanks,

David