I am able to debug code on all revs of the Rabbit 6700 boards, but when I go to write a .bin to rev G boards it times out at the erasing flash stage in RFU. It works fine on my rev D and F boards, has anyone else had this problem.
Rev G makes use of a new serial flash chip and requires recompilation of your original source with a patched library.
Further information here: http://knowledge.digi.com/articles/Knowledge_Base_Article/Serial-Flash-End-Of-Life-Patch-Support