Hi all,
I would really appreciate if someone can reply and guide me with this problem.
Is it possible to modify the soundlocalizer example explained in Tinyos
programming book, chapter 13 so that it can sample the mic sensor continuously?
In fact, I tried to do it by putting the "Atm128AdcSingle.getData" command
inside a for loop and each time the event "Atm128AdcSingle.dataReady" is
signalled, the data will be added to a buffer as shown in the code below.
However, it does not work as I expected. It seems to be that, although I can
see that the "Atm128AdcSingle.getData" command is executed several times
depends on the buffer size, the event "Atm128AdcSingle.dataReady" is signalled
only once (I don't know why?).
Pleas correct me if what I did is wrong.
void Cont_Sample() {
for(i = 0; i < BUFFER_SIZE; ++i)
call Atm128AdcSingle.getData(call MicAdcChannel.getChannel(),
ATM128_ADC_VREF_OFF, FALSE,
ATM128_ADC_PRESCALE_32);
printf("Here is a ith value: %d\n", i);
printfflush();
}
/////////////
async event void Atm128AdcSingle.dataReady(uint16_t data, bool precise) {
Add_DataToBuffer(data);
}
////////////
void Add_DataToBuffer(uint16_t Mic_data){
MicRead[i] = Mic_data;
if (i == BUFFER_SIZE)
{
printf("last iteration value: %x\n", i);
printfflush();
post stopMicrophone();
}
}
BTW: I am using Tinyos-2.x, Micaz and mts300.
I would be very grateful if someone can help.
Thanks in advance,
Omar
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