I've added a further custom lib by copying it to the lib directory and renaming it (customers.a -> libcustomers.a). Then I entered iRam/customers in "paths and symbols/libraries" and it works. I have two more questions.
1. Give a documentation on how to add libs as described above?
2. I get the following error when I call methods of the customers.lib: taskfkt.obj uses an incompatible TriCore core architecture TC_V1.6.2 (should be TC_V1.6.1).
Is there any way I can use this LIB in the Shieldbuddy environment?
I would like to thank you in advance for the good support