Try installing latest J-Link software from Segger's website and then include the following files from its install folder:
SEGGER_RTT.c
SEGGER_RTT.h
SEGGER_RTT_Conf.h
SEGGER_RTT_printf.c

Regards,
Victor

Hello Oliver,

Sorry for the delay in response.

But I miss the Debug-printf-function. I tried to copy and include all libraries from an ES-created project, but it does not work.

I assume you want to use a printf function to output debug information on your terminal. What hardware interface are you using/ planning to use for that on your target interface?
Via Semihosting, SWO, RTT?

We recommend using RTT as you are hardware independend and faster than other printf style techniques. More information can be found here.

There is an other...I wanna put some functions in a seperate File. But the functions are not showed in auto code completition, no matter how I include it. How can I familiarize my files with code ES editor?

The moment you define a function you should see it in auto completion. Make sure the file where the function is declared is also included in the file you want to call it.

Best regards,
Nino

Hello Oliver,

Yes, I mean RTT. Is there an easy way do add it to an project (like "Add existing file..."), I dont find a folder in ES-installation where it is, I dislike also to rummage in such template directories (to easy to damage it...). And create an empty project to copy this files is a way, but I it seems also not beeing what it should be...

You can simply add them with "Add existing file..." from the ES install folder.
To quickly navigate to the folder path use File>Open Studio Folder>Studio Folder

There under /samples you will find all files necessary files for RTT.
We recommend though copying the needed files from that folder to your project folder locally to make sure the project stays portable.

There are also any questions for using ES (Help -> F1 does not work?)

F1 or Help should open a window called "Content" which is essentially the ES user manual.
Alternatively you can use the online version with the same exact content: studio.segger.com/

Is there any possibillity to jump to the codeline which generates a compile error? Don't find something under Help -> content...

You can jump by either using shortcuts F4 and Shift + F4.

Best regards,
Nino

Hi Oliver,

I meant something like the compile error in the attachment. In most IDEs I used, the normal way is a coubleclick at the warning, and the cursor jumps to the codeline which causes the error or/and marks it. F4/Shift+F4 jumps between the red-button-messages.

This is exactly how ES works too usually. But in this particular case the compiler can't relate a particular code line to the error which is why the double clicking does not work here.
Same goes for linking errors.
This is unfortunately gcc compiler specific so we have no influence of the behaviour in that cases.

Best regards,
Nino