Precision problem in filter parameter ramp can cause the ramp to never finish

From Dave and Erik:

Ramps for changing offset and other filter bank parameters are handled in tRamp.c. It's possible with a large value, a small change, and a long ramp to end up with a delta value that is too small to affect the current value. The value never changes from one step to the next and the ramp never completes.

Recommend ensuring that delta value is at least the minimum magnitude that will change the current value.

OR

Rewrite tRamp.c to use the spline ramp from awgtpman and terminate the ramp based on time and not value.

Recreate: set offset to 4000000. Set tramp to 20 seconds. Change offset by 1. Ramp will never complete.