I'm trying to add a cheap way to debug my PIC (16F84)
design.  So I stuck a piezio buzzer on PORTA.  It works as a
good in-circuit debug, but it is rather high overhead (ie: set the port
pin, delay for 400ms, clear the port pin, delay for 400ms, repeat for
more buzzes).  The buzzer seems to have some odd characteristics
also (I don't know much about piezo buzzers-- startup time seems
a little long, etc).

        Is there a better way to do this?


Jonathan Cline
jcline@vision.calpoly.edu