now, my code looks working almost as i want, i'm not really sure about the accuracy, but for the moment it's enough.
now i'm working with a servo and one channel of my Spektrum RC receiver.... looks strange, i meet jitters problems because the digital input is not fixed!!!!
if put a fixed position of the servo only with the servo librarie, it works perfectly...
sor for the moment i see that my problem is the read value of the ppm signal wich is not constant.....
so i will post in another thread about this.
regards