hi all,
I 'm studing tinyos2.0.1 and meet a problem about "Dissemination" .
The problem is quite simple. I read the Tutorial 12, and compile the
program which is similar to the program in the Tutorial 12, but it doese't work.
Here is the program:
#include <Timer.h>
module EasyDisseminationC
{
uses interface Boot;
uses interface DisseminationValue<uint16_t> as Value;
uses interface DisseminationUpdate<uint16_t> as Update;
uses interface SplitControl as AMControl;
uses interface Timer<TMilli>;
}
implementation
{
uint16_t counter;
task void ShowCounter()
{
dbg("Dissemination","Counter is %d.\n", counter);
}
event void Boot.booted()
{
dbg("Boot","Booted: The application started. \n");
counter = 0;
call AMControl.start();
}
event void AMControl.startDone(error_t err)
{
if (err == SUCCESS)
{
if (TOS_NODE_ID == 1)
{
call Timer.startPeriodic(100);
}
}
else
{
dbg("Error","Error: The AMControl doesn't started. \n");
call AMControl.start();
}
}
event void AMControl.stopDone(error_t err)
{
dbg("Dissemination","STOP: Stop the application. \n\n");
}
event void Timer.fired()
{
counter = counter + 1;
post ShowCounter();
call Update.change(&counter);
}
event void Value.changed()
{
const uint16_t* newVal = call Value.get();
counter = *newVal;
post ShowCounter();
}
}
It seems Update.change() does't work at all. I don't know why.
And i remember the same program was fine under tinyos2.0.
Any help would be appreciated.
Eamin
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