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Electronic Equipment > Microcontrollers 8bit > slowest practic...
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slowest practical baud rate?

by "starfire" <starfire151@[EMAIL PROTECTED] > Dec 29, 2007 at 12:12 PM

I'm trying to run a PIC12F675 with an external 32.768KHz crystal to
maximize 
battery life.

I would like to interface to the part with a serial interface.  I've tried

300 baud and 110 baud (no partiy, 8 data, 1 stop) but they didn't work. 
300 
baud gave invalid character returns and 110 baud didn't show anything. 
I'm 
interfacing with a HyperTerminal session.   I have serial input going in
to 
pin A3 (I declared NOMCLR in the fuses) and output going out of pin A2.

I can see the program running (as indicated by toggling of a heartbeat 
indicator) but the code does not recognize the serial input characters 
correctly.

Has anyone tried this "extreme" condition or am I just "spitting into the 
wind"? :)

Thanks.


Dave
 




 6 Posts in Topic:
slowest practical baud rate?
"starfire" <  2007-12-29 12:12:51 
Re: slowest practical baud rate?
Geo <9w0b-safk@[EMAIL   2007-12-30 16:20:20 
Re: slowest practical baud rate?
"starfire" <  2007-12-30 10:19:03 
Re: slowest practical baud rate?
"TT_Man" <So  2007-12-30 17:28:18 
Re: slowest practical baud rate?
"starfire" <  2007-12-30 12:07:43 
Re: slowest practical baud rate?
Geo <9w0b-safk@[EMAIL   2007-12-30 19:52:02 

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tan12V112 Sat Aug 30 2:59:00 CDT 2008.