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Zephyr project on STM32

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It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
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How to add an external library in a project?

Posted by user9 on 2020-07-08 11:49

Hi everyone,

I’m having issues in adding an external library to my project. The lib is for LoRa communication (SX1272), it’s in C++ as well as my project.
The lib folder contains the following folders : debug, enums, radio, registers, typedefs, sx1272 (with .h and .cpp source files).

1. I tried to simply paste the lib folder into my project folder -> the lib files generate errors at build.

2. I added the name and the path of the lib in project properties >> C/C++ Build >> Build settings >> MCU GCC Linker >> Libraries >> Libraries search path as I found in another post -> the lib files still generate errors at build.

Does anybody have another idea?

Thank you in advance for your help.

Reads: 6712
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Posted by jdiosflores on 2020-07-14 11:36

Hi,

I have had some problems with that as well. You should go to the project properties >> C/C++ General >> Paths and Symbols

In the includes tab select the GNU C++ and Add the location of your library, can be relative and just add the ‘lib/LoRa’ for example if that is the location

In the Source Location tab add the folder of the library.

This should work. Let me know if it work for you.

Link

Posted by user9 on 2020-07-30 15:56

Thank you a lot, it works! I wasn’t adding the lib paths to the right place!
Do you know how to procede with symbols?? I’m adding them here :
project properties >> C/C++ General >> Paths and Symbols >> Symbols
But it doesn’t work at all.

Link

Posted by jdiosflores on 2020-07-31 17:49
Glad to help. Unfortunately I dont know about the symbols.
Link

Posted by user9 on 2020-08-03 10:57

For those who may have the same problem regarding symbols, I have understood my mistake:

To define them properly, define them in Project > Properties > C/C++ General > Paths & Symbols
Configuration : | All configurations | (this is where I wasn’t doing it correctly)

If you have to declare a symbol for a #if / #endif, add a value (1 for expl) to your symbol. Else, it won’t work.
If you have to declare a symbol for a #ifdef, you don’t need to add a value, as soon as you define it in the properties.

Hope it helps!

Link
Posted by user9 on 2020-08-03 15:05

Also, if you’ve done what explained above but your compiler still can’t find your symbols, try:

projet > C/C++ Index > Freshen All Files
projet > C/C++ Index > Rebuild

It worked for me.

Link

 

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