alright Ace, I give in, you've got me in dispair with this project, I'll look for a totally different way.

I alredy built a 4 channels fail-safe in pure PBP ... 4 Channels to read and 4 channels to output ... so, your project looks quite doable.
Writing a neat timechart ... of course.
Is this something you've released that I can learn from or even adapt?

If I can't see the code, can you give me some hints about the way forward?

I don't mind all the time charts in the world, but what's it for?

I'll stop bothering you now, time for bed.

Either way, thanks for the help, it's good to know when the idea you've got is impossible, that way you can move on; even if it is disheartening. Sniff...

I'll check out DT's interrupts anyway - always learning.