We have completed the paper
Digital control of force microscope cantilevers
using a field programmable gate array
by Jonathan P. Jacky, Joseph L. Garbini, Matthew Ettus, John A. Sidles
We have submitted it to Review of Scientific Instruments. The preprint
(abstract and PDF of the full paper) is available at
The software discussed in the paper is available at
I put a link to the preprint on the Wiki AcademicPapers page.