Tests d'hier pour le PRU
PRU works again...

I did: minimal examples, added to the Makefile.
And minim-noInt worked. Now other works too!
Maybe it is because of minim-noInt.
Maybe it is because I rebooted since the last INTC tweaks I did yesterday...
PRU works here, at this commit, because it works.

Renamed dump.ok -> dump.bug-too, because it WAS buggy too.
dump.ok IS an ok configuration (however, I did not reboot yet)
No, it does not work anymore........

minim-noInt executed correctly (first time, before minim-stall),
so my guess is that it is important to close its mapped memory??? Nope (tested once)
It has to be something I did yesterday night... but what?