Added option for offset in generate tool (found on Pitaya in folder /opt/bin)
To compile follow instructions on http://wiki.redpitaya.com/index.php?title=Developer_Guide

Short digest:
Performed on debian wheezy/sid

-Install build-essential and ARM cross compiler tool:
sudo apt-get install build-essential
sudo apt-get install gcc-arm-linux-gnueabi

-Compile:
make CROSS_COMPILE=arm-linux-gnueabi- clean all

-Copy to PITAYA (commands run from pitaya)
rw
mkdir /opt/bin/generateOffset
scp [linux-machine compiled file] /opt/bin/generateSweep
ro