> OK, I still can't read 'ground it directly' different from 'tied to
ground'

Think we're talking about two completely different things. I interpret
"ground it directly" as using a low-ohms device (switch) to connect
MCLR to ground so as to reset the PIC. After the switch is released,
MCLR goes back to being held high via a pull-up. I interpret "tied to
ground" as a permanent ohmic connection, eg a wire link or PCB
trace, that holds MCLR at 0V forever and ever amen (the opposite
of the more usual "tying" MCLR to Vcc via a trace when no reset
facility other than power-down-power-up is required). Permanently
holding the PIC in reset by "tying" MCLR down didn't make sense,
but it seems we were both victims of semantics

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu