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Re: [avr-chat] 32768 Hz clock
From: |
Royce Pereira |
Subject: |
Re: [avr-chat] 32768 Hz clock |
Date: |
Sun, 23 Apr 2006 10:46:14 +0530 |
User-agent: |
Opera M2/9.0 (Win32) |
Hi Bill,
I did try your suggestion of overflowing TCNT2 & dividing the interrupts by
128, and it worked!
But like you said without the caps, there is an error of 1 sec/hour.
So- what are the recommended values of capacitors to be used?
Many Thanks,
--Royce.
On Sun, 23 Apr 2006 05:49:21 +0530, Bill Rochat <address@hidden> wrote:
claims that you don't need external capacitors when ASSR is selected,
however, without them, there is a time error of about 1 second each hour.
I notice that you interrupt 512 per sec. Any particular reason?? I just
let the counter overflow TCCR2=0x08. That occurs 128 per sec.
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