Hi Ian,
On Tuesday 10 October 2006 10:42 am, Ian Welch wrote:
> I want the following commands to happen order
>
> call Single.getData(1,0,0,0);
> post sendInfo();
I presume Single is an instance of the Atm128AdcSingle interface, or one
similar. The command getData() initiates an ADC operation. The event
dataReady() signals back to you when the operation is done. So, in the
component where you call Single.getData(), implement the Single.dataReady
event, and post your sendInfo task from there. Something like this:
module yourmodule {
uses
provides ...
}
implementation {
uint16_t ldata;
task void sendInfo()
{
/* atomic assignment avoids possible race condition */
uint16_t lldata;
atomic lldata = ldata;
/* do something with lldata */
}
command void YourComponent.someFunction() {
call Single.getData(...);
}
async event void Single.dataReady(uint16_t data, ...) {
ldata = data; /* save a local copy of the returned result */
post sendInfo();
}
}
There's almost always good code examples to be found in the apps/ directory of
the tinyos distribution that can be helpful.
Steve
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