On 4/20/07, Steve McKown [EMAIL PROTECTED] wrote:
Hi Phil,
On Thursday 19 April 2007 10:24, Philip Levis wrote:
On Apr 19, 2007, at 7:37 AM, Steve McKown wrote:
H
In case you're wondering why it's set up this way: converting
between powers
of 2 needs only fast bit shifts. Far more
On Apr 20, 2007, at 8:49 AM, Steve McKown wrote:
This assumes a certain source clock frequency, right? In one
project, we used
a true 8MHz (8*10^6, not 8*2^20) crystal to get true microsecond
granularity
out of Timer A (SMCLK/8). The problem is if you want true ms: true
ms = true
Hi all,
I apologise if this is a rather basic question, but to set a timer to fire exactly 1s periodically (using TimerTMilli), do I input startPeriodic(1000) or startPeriodic(1024)? 'Coz all the while, I've always used the former, but I realised that it's never 1 sec, always faster than that. A
Hi,
On Thursday 19 April 2007 05:53, Muhammad Azhar wrote:
Hi all,
I apologise if this is a rather basic question, but to set a timer to
fire exactly 1s periodically (using TimerTMilli), do I input
startPeriodic(1000) or startPeriodic(1024)? 'Coz all the while, I've
always used the
Hi,
Usually a clock on a microcontroller is implemented by using a clock
crystal on an asynchronous counter. When the counter overflows (or
reaches 0) it generates an interrupt, which is then used to update the
clock. A typical frequency for such a crystal would be 32.768 kHz, which
is 2^15.
The
On Apr 19, 2007, at 7:37 AM, Steve McKown wrote:
H
In case you're wondering why it's set up this way: converting
between powers
of 2 needs only fast bit shifts. Far more efficient than, say,
dividing by
1000.
Actually, the reason has more to do with error and the effort/cost it
