Now, I've still a problem. When writing to CCON register, the software bugs !
what software, what bug

The error occurs when after initialising all PCA registers I try to set the CR bit to run the PCA.
Through use of many asseblers and compilers through the years, I have learned not to trust the supplied definitions but to use my own declarations. Also this gives me the advantage of instead of e.g. EA I use IE_EA, this gives me the ability to use global searches on EA and fina all places that SFR is accessed.

Erik