l i n u x - u s e r s - g r o u p - o f - d a v i s
Next Meeting:
July 7: Social gathering
Next Installfest:
Latest News:
Jun. 14: June LUGOD meeting cancelled
Page last updated:
2006 Mar 07 18:41

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

Report this post as spam:

(Enter your email address)
Re: [vox-tech] general algorithm question for an embedded system
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [vox-tech] general algorithm question for an embedded system

On Tue, Mar 07, 2006 at 01:37:29PM -0800, Dylan Beaudette wrote:
> this works out ok, for time intervals less than 24 hours, except for one 
> thing... the main loop is executed about 6 times per second, therefore the 
> test for secs(0) == 00 is evaluated as true 6 times, when i would only like 
> it to be evaluated once. Ideally, i need some sort of flag for signalling the 
> main if statement to only execute once. 
> any thoughts on how this could be done with bit or nibble sized variables ? 

How about a bit flag named "trigger" that gets set to false whenever
"should execute" is false. When it comes time to execute, check
"trigger": if it's false, execute, and set trigger to true. It won't
execute again until trigger is false again, which won't be until this
execution window has expired.

Micah J. Cowan
vox-tech mailing list

LUGOD Group on LinkedIn
Sign up for LUGOD event announcements
Your email address:
LUGOD Group on Facebook
'Like' LUGOD on Facebook:

Hosting provided by:
Sunset Systems
Sunset Systems offers preconfigured Linux systems, remote system administration and custom software development.

LUGOD: Linux Users' Group of Davis
PO Box 2082, Davis, CA 95617
Contact Us

LUGOD is a 501(c)7 non-profit organization
based in Davis, California
and serving the Sacramento area.
"Linux" is a trademark of Linus Torvalds.

Sponsored in part by:
EDGE Tech Corp.
For donating some give-aways for our meetings.