Re: [avr-libc-dev] bug in wdt_disable() for ATmega324P

[jan]

On Sun, 9 Mar 2008 15:52:34 +0100
Joerg Wunsch <address@hidden> wrote:

> As address@hidden wrote:
> 
> > First of all, I don't know if this is the appropriate way to report
> > a bug in AVR Libc. If not, please tell me the correct procedure.
> 
> Well, for a genuine bug report, the way to submit it would be via
> 
> https://savannah.nongnu.org/bugs/?group=avr-libc
> 
> However, what you're talking here about is more like a request for
> discussion, and that's fine with that mailing list.
> 
> > In ATmega324P you have to make sure the WDRF bit in MCUSR is clear
> > before you try to disable the watchdog.
> 
> Well, this is something that needs to be handled at the application
> level.  Depending on the application, it has to be handled very early
> at startup (e.g. in situations where the application has much SRAM to
> initialize, or a C++ application that runs expensive global
> constructors), and it only has to be handled once.  For the latter
> reason, we decided it's nothing you'd want to perform within each call
> to wdt_disable() but rather documented some example code within the
> prolog of the <avr/wdt.h> documentation about how an application might
> want to handle that.
> 

Sorry, I didn't notice that.

In a way it feels good to be wrong about things like this ;^)

/Janne

-- 
Tomorrow, this will be part of the unchangeable past but fortunately,
it can still be changed today.