Hello: would you post (tar bzipped attachment) the following: 1- Makefile to build STR91FxFAxxx cpu fpr GNU-ARM tools. 2- Assembly file(s) of the startup code 3- Linker file (.ld) 4- Any C file (hello for example) which will build with the Makefile above. Thanks Andre Note: the ST91xFA Firmware Library build as described above would indeed be nice!