[marknorton]

Good point, the program can find out the revision of the processor it's running on and, in theory, you could code one version for the old and one for the new. In practice, that doubles the testing load and I expect Leica want one size fits all.

If in the future they produce a revised DSP board, they could update the firmware for it making the assumption that every instance of the board out where will be at a later revision level.