Dear sir/madam, After playing around with the framework from ATMEL (at91lib), I finally manage to come up with a descent (source)package. The attached code is free for use, no loyalty. You can put it on your website if you want. It contains a very simple example that implements a standalone-debug-trace feature. It includes a simple and readable Makefile that wraps away the code (peripherals/utility) from at91lib. Thanks a lot, I hope this contribution helps the community. It should compile without warnings with the latest GNU-ARM-TOOLCHAIN. Best regards, Roel Verdult