Searching \ for '[PIC] Oscillator Drift was Re: [PIC] Stimulus file' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: techref.massmind.org/techref/microchip/time.htm?key=oscillator
Search entire site for: 'Oscillator Drift was Re: [PIC] Stimulus file'.

Exact match. Not showing close matches.
PICList Thread
'[PIC] Oscillator Drift was Re: [PIC] Stimulus file'
2006\09\01@103919 by Bob Axtell

face picon face
Maarten Hofman wrote:
{Quote hidden}

I experimented with the PIC12C672 timer for UART purposes. What I found
was that the timer was
faster at first then slowed down, on a cycle that seemed to be about
f/20. What that meant was that at
19.2kb it wasn't useable, but at 1200 it worked OK, because the cycle
was smoothed out.

But there is a better way to do it; use Manchester coding, which is not
dependent on precise timing. I
can send and receive this type of transmission at 2x or 1/2x of the
intended speed and I have no problem
reading the data. I now use this for all non-UART serial schemes.

--Bob

More... (looser matching)
- Last day of these posts
- In 2006 , 2007 only
- Today
- New search...