MJK

That was quite useful and put the perspective of the C compiler in place. Yes I do have "bravely" gone through the grind of doing some extensive divide and multiply routines and had to debug for a week in one case - just because I wrote MOV R0, CHAN1 instead of MOV R0, #CHAN1. Compiles well but produces garbage. I will defenitley get back to you on the spread sheet stuff ...


JS

Yes converting to the frequency domain is a very good option to simplify things- but in this case I may not have to do that I suppose. Can be handled in the time domain..

BB

The transfer function is in a mess at this point as the full span of the variable cannot be fitted with a single curve and there is talk about two segments or more and the discussion sems to be heading for a look up table .

Thanks for all your time.

Raghu