I would like to make a simple, linear acceleration ramp.
I think that low priority DT interrupts can serve as a timebase.
The thing I want is like that: increase linearly the value "x" to value "y" in "n" seconds.
For example, ramp from 10 (x) to 560 (y) in 42 seconds (n).
Time (n) is between 0 and 255 seconds.
Values to increment (x and y) are between 10 and 1200.