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Compiler/CC3200-LAUNCHXL: "unresolved symbols remain" on Energia.h

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I'm not used to playing with C/C++ or even with compiled languages so maybe it'll be a dumb question but after a lot of research, I don't know what to do.

I have an issue at compilation in a CCS project for CC3200 and I've already posted a question in the compiler section of TI's forum. I got help : I know now that my error is that I'm trying to use methods defined in a header file without having the corresponding source file in the project. So I am getting an "undefined symbol" error on theses methods, as you can see on the following screenshot.


As I started my project in Energia IDE, I did some code using Energia's methods. Going on doing the project, I needed to add Free-RTOS. I never used Free-RTOS before so I took a demo project of Free-RTOS implementation for CC3200 as a base to do it. I succeeded to compile the demo project on my board.

Also, I imported my Energia sketch in my CCS workspace and I was also able to build it and run it correctly on the board (via CCS).

But then I tried to combine both project, and now I'm stuck with an issue.
I added code from my Energia Sketch in the Free-RTOS demo project. As I am using Energia methods and constants such as digitalWrite or pinMode, I was not surprised that the IDE and the compiler couldn't find them.

I investigated a bit to find out where these methods where defined and I found them in Energia.h. That's why I firstly tried to import this header only. Now that I have understood that I need the source file :), but I can't find it !

My last try was to look at the imports/symbols and file search paths of my imported Energia sketch in CCS (like the following) :

- Imported Energia sketch project


- Free-RTOS demo project (my project)



I also read things about "lpcc3200_core" folder which was added when I imported the Energia Sketch. Maybe this is the core files that I need ?

I'm still stuck and now I wonder if it's even possible to correctly import Energia framework this way, or if I should either choose TI-RTOS or write again my Sketch directly in C/C++.

Thanks for reading me !

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I investigated a bit and indeed, the files I need are situated in "lpcc3200_core" folder. But now I can't compile it, there is an error at "lpcc3200_core" 's compilation !

This is the error :



I tried to delete all imported Energia projects from CCS and import a new empty Energia sketch. Even doing that, lpcc3200_core can't compile properly.


Also, I noticed that I have forgotten to give important information about my environment :
- OS : Win 10
- CCS version : 6
- Compiler version : TI v16.9.3.LTS

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