Am I right in thinking there is a 16MHz internal crystal in the 40X1?
If so you do I use it? I have found this in the manual:
28X1, 40X1 internal k31,k125,k250,k500,m1, m2, m4, m8
external em4, em8, em10, em16, em20
But I don't understand how to get 16MHz.
Thanks!