It is not possible to integrate a Static Library

You need to change the library include control in the Project Settings for the linker libraries dialog to "${workspace_loc:/myTest/lib/myLib}"

Maybe they can test the worspace in their environment.

Unfortunately, the lib is not included in your workspace. On the one hand, this can be done by calling the tricore-gcc
see

"C:\HighTec\toolchains\tricore\v4.9.1.0-infineon-2.0/bin/tricore-gcc" -o "myTest.elf" -T"..\ld\iRAM.ld" "src\hello.o" -Wl,--gc-sections -mcpu=tc27xx -Wl,--mem-holes -Wl,--no-warn-flags -Wl,-Map="myTest.map" -Wl,--cref -fshort-double -Wl,-n -Wl,--extmap="a"
src

and it lacks the -l parameter (-l "C: \ Projects \ workspace \ workspace_myTest \ myTest \ lib \ libmyLib.a"
Best regards
George

If you want to use the lib function sum, there is the following error:
C:\Projects\workspace\VonAdmin\workspace_myTest\myTest\iRAM/../src/hello.c:13: error: undefined reference to `sum'


I almost believe tricore-gcc has an error, because correct data is passed to the -l parameter
Please refer workspace_myTest (2).zip