There are many links across the Internet to app note nAN-29 (nRF51 Development with GCC and Eclipse). In fact, I remember seeing a link to it on the Nordic website just days ago. However, the links are all broken now, and it's not listed in Nordic's list of application notes. Does anyone know why it disappeared, and where one might find a copy of it elsewhere?
It's no longer work. Follow this blog for Eclipse dev. embeddedsoftdev.blogspot.ca/.../ehal-nrf51.html
This app note was outdated and did not work on the newer versions of eclipse. We are working on finding an alternative for developing with gcc. You can still ask questions about it here though, since there are many with good knowledge in gcc/eclipse in this forum.
A new tutorial is posted here: devzone.nordicsemi.com/.../