pic16877 in circuit programming
using low voltage mode, is the same as
losing the pin rB3 i/o. so, i dont like it either....
otherwise, using standard high voltage mode
could be done, when u use a voltage switcher on the mclr pin, combined with a
analog switch 4066 on the rb7, rb6 pin.
this all, switched automaticly or with a
slide switch (program/normal).
for now, i am using a testboard (home made)
that i switch with a rotary sw.
prog/normal/off
that rotary is switching the mclr/rb6/rb7/power lines.
in prog mode, i use a mini relais to switch off the parallel port lines, and put the
attached buffers to the appropriate level.
maybe this setup is helping, to solve
a new setup who is better/portable.
greetz.
<font size=-1>[ This Message was edited by: gelly on 2002-04-28 22:35 ]</font>