timer and callback routine

Paul — Thu, 15 May 2008 23:34:02 -0400

I've trying to code a timer that will start a data
acquisition program at a certain time.

The problem I have is that the callback function in the
timer routine is just that ... a call to a 'function'.
Therefore the more general question would be: how to
execute a callback 'program' and not a 'function'. Or
should I just somehow rewrite the data acquisition program
to look like a function?

Re: timer and callback routine

helper — Fri, 16 May 2008 03:04:01 -0400

"Paul " <par@ceri.memphis.edu> wrote in message
<g0ih9a$brn$1@fred.mathworks.com>...
> I've trying to code a timer that will start a data
> acquisition program at a certain time.
>
> The problem I have is that the callback function in the
> timer routine is just that ... a call to a 'function'.
> Therefore the more general question would be: how to
> execute a callback 'program' and not a 'function'. Or
> should I just somehow rewrite the data acquisition program
> to look like a function?
>
>

What you are calling a "program" is typically referred to
as a "script"...and yes, rewrite it to be a function. And
it isn't difficult. At the very first line of your
script/program, add the line:

function MyDAQFunction
<add script code here>

Then set the "TimerFcn" property of the timer to "@(x,y)
MyDAQFunction" (without the quotes). Oh, also be sure to
save the function as the name "MyDAQFunction.m". It is the
name it is saved as that matters, not the name after the
FUNCTION keyword.

Function created! Good luck

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