Look what I just found on p. 208:
EDIT: Hmmm, p.212 has 1 as default on port B (ST input).The INLVLB register (Register 12-8) controls the input
voltage threshold for each of the available PORTB input
pins. A selection between the Schmitt Trigger CMOS or
the TTL Compatible thresholds is available. The input
threshold is important in determining the value of a read
of the PORTB register and also the level at which an
interrupt-on-change occurs, if that feature is enabled.
Ill try with INLVLB = %00000100, but I doubt it'll make a difference.
EDIT SOME MORE: Nope, still random double-processing.




Bookmarks