Problems adding cJson library

RE: Problems adding cJson library

isurki — Wed, 20 Nov 2019 16:52:27 GMT

Hi;

Thank you, that worked!

RE: Problems adding cJson library

Håkon Alseth — Wed, 20 Nov 2019 11:25:43 GMT

Hi,

That is a standard library header, which does not seem to be implemented in the minimal libc revision that you're using.

You'll need to switch your libc to newlibc. This can be done by adding:

CONFIG_NEWLIB_LIBC=y

Kind regards,

Håkon

RE: Problems adding cJson library

isurki — Tue, 19 Nov 2019 17:37:22 GMT

Hi,

I have edited my prj.conf to add CONFIG_CJSON_LIB=y and then included #include <cJSON.h> to my main program. When I compile the program a cJson.c file opens in Segger and I get an error saying that "math.h" file is missing.

I have not found "math.h" file in any path... do I have to download it from Github? In that case, how do I add it to my project?

Thanks a lot.

RE: Problems adding cJson library

Håkon Alseth — Tue, 19 Nov 2019 09:36:01 GMT

Hi,

To add cjson to your project, you can add CONFIG_CJSON_LIB=y to your prj.conf, then reimport the project.

Could you try this and see if it works?

Kind regards,

Håkon