I have set up simple_uart (pin defined from pca10001.h) for nrf51822 but I didn't figure out how to get serial from ttys under MacOSX (10.9)
I got it: for the problem of the previous JLinkExe, I disable_cdc, and the virtual com port doesn't work. Now I have reenabled it, all works !
Great that you figured it out. Thank you for answering your own question.