Hi Miklos, Thanks for your response. Yes, I tried to use Atm128FastAdc library and MicReadStreamTest application. However, as you said it works only for IRIS and unfortunately not for MICAZ, but the Soundlocalizer works fine for MICAZ. So, is it possible to modify the soundlocalizer example so that it can sample the mic sensor continuously?
I would really appreciate your help. Thanks again, Omar >-----Original Message----- >From: [email protected] [mailto:[email protected]] On Behalf Of Miklos >Maroti >Sent: 30 June 2010 14:33 >To: Omar Bouzid >Cc: [email protected] >Subject: Re: [Tinyos-help] continuous sampling of mic > >Hi Omar, > >Use this library (works only for IRIS so far) > >http://szte-wsn.cvs.sourceforge.net/viewvc/szte- >wsn/tinyos/tos/lib/Atm128FastAdc/ > >and this sample application to sample the mic at 9 KHz. > >http://szte-wsn.cvs.sourceforge.net/viewvc/szte- >wsn/tinyos/apps/MicReadStreamTest/ > >Miklos > >On Tue, Jun 29, 2010 at 2:08 PM, Omar Bouzid ><[email protected]> wrote: >> 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 >> >> _______________________________________________ >> Tinyos-help mailing list >> [email protected] >> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos- >help >> _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
