I'm using a serial routine on a 12F675 and started by sending out the
word "HELLO" over and over. Funny thing is while it's powered on I get
nothing out, but the instant I remove power it sends out 10 or 11
characters. The filter cap is powering it for that fraction of a
second. The circuit is being powered by a 9V battery with a 78L05 to
regulate it at 5V. My meter reads 4.99v at the pic chip. A logic probe
connected to the output blinks the whole time it is powered up which
should mean that its sending something. I had to include this bit of
code at the very beginning before I got anything at all.
call 0x3FF ; Retrieve Factory Calibration
BANKSEL OSCCAL ; BANK1
movwf OSCCAL
Anyone have any ideas as to what might cause a problem like this?
Thanks, Max
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