I'm trying to develop and application that uses both the ARTX and the STR71x library. I've added both to my project, when I run it, the program jumps from os_sys_init to SWIHandler in STR71x.s (which is undefined so it ends up in an endless loop) I can change the options in STR71x.s to enable 'EIC' but when I do that the project won't build as I appear to be missing a load of xxxxxxxHandler functions. I've added 71x_it.c to the project, but this doesn't seem to make any difference. Maybe I've got the wrong version of a file somewhere, but I'm very confused, it seems very hard to get a simple program up and running! Thanks for you help Simon