Re: [Tinyos-help] how to get 3 ADC Port value from Tmote sky‏

[Michael Schippling]

I think what you need to do is have separate names for each ADC 'channel'
and call their getData()'s in sequence, something like this:

in the Config file:

   ProjectOtherM.ADCx -> ADCC.ADC[TOS_ADC_SENSORX_PORT];
   ProjectOtherM.ADCy -> ADCC.ADC[TOS_ADC_SENSORY_PORT];
   ProjectOtherM.ADCz -> ADCC.ADC[TOS_ADC_SENSORZ_PORT];

(I'm not sure about your ASSOCIATE_ADC_CHANNEL() stuff, on micaX's
under T1 I simply use the channel number. Is this perhaps T2, or
else I'm still unfamiliar with Tmote specifics...?)

in the code:

after startup or in your timer.fired():

	call ADCx.getData();

Then chain the gets in the individual Ready() methods:

    // get data from X channel and fire off Y channel conversion
    async event result_t ADCx.dataReady( uint16_t data )
    {
	...
	call ADCy.getData();
         return SUCCESS;
    }


MS

Chen Bleed wrote:
> I want to get three value from tmote sky.I use 3-axis accelerator 
> sensor, and I need the X, Y, Z Output.
> I'm unable to  get three values at one time, so i try to get one value 
> at one time, then get  three times to be a cycle.
> (If anyone get some solutione like get three values at one time, please 
> tell my how to do.)
> This program seems to get only one value.Please help me to solve this 
> problem.
> 
> ***************** IntMsg.h *****************
> typedef struct IntMsg {
>   uint16_t val;
>   //uint16_t src;
>   uint16_t testval;
>   //uint16_t testval2;
>   //uint16_t testval3;
> } IntMsg;
> 
> enum {
>   AM_INTMSG = 153
> };
> 
> 
> ***************** SensorX.h *****************
> enum
> {
>   TOS_ADC_SENSORX_PORT = unique("ADCPort"),
> 
>   TOSH_ACTUAL_ADC_SENSORX_PORT = ASSOCIATE_ADC_CHANNEL(
> /*    INPUT_CHANNEL_A3,*/
>     INPUT_CHANNEL_A2,
>     REFERENCE_VREFplus_AVss,
>     REFVOLT_LEVEL_1_5
>   ),
> };
> 
> 
> ***************** SensorY.h *****************
> enum
> {
>   TOS_ADC_SENSORY_PORT = unique("ADCPort"),
> 
>   TOSH_ACTUAL_ADC_SENSORY_PORT = ASSOCIATE_ADC_CHANNEL(
> /*    INPUT_CHANNEL_A1, */
>     INPUT_CHANNEL_A0,
>     REFERENCE_VREFplus_AVss,
>     REFVOLT_LEVEL_1_5
>   ),
> };
> 
> 
> ***************** SensorZ.h *****************
> enum
> {
>   TOS_ADC_SENSORZ_PORT = unique("ADCPort"),
> 
>   TOSH_ACTUAL_ADC_SENSORZ_PORT = ASSOCIATE_ADC_CHANNEL(
> /*    INPUT_CHANNEL_A2,*/
>     INPUT_CHANNEL_A1,
>     REFERENCE_VREFplus_AVss,
>     REFVOLT_LEVEL_1_5
>   ),
> };
> 
> ***************** ProjectOther.nc *****************
> includes IntMsg;
> includes SensorX;
> includes SensorY;
> includes SensorZ;
> 
> configuration ProjectOther {
> 
> }
> 
> implementation
> {
>   components Main, ProjectOtherM, TimerC, LedsC, ADCC, GenericComm as Comm;
>  
>   Main.StdControl -> ProjectOtherM.StdControl;
>   ProjectOtherM.Timer -> TimerC.Timer[unique("Timer")];
>   Main.StdControl -> TimerC.StdControl;
>   ProjectOtherM.Leds -> LedsC.Leds;
>   ProjectOtherM.SendMsg -> Comm.SendMsg[AM_INTMSG];
>   ProjectOtherM.SubControl -> Comm.Control;
>   ProjectOtherM.ADC -> ADCC.ADC[TOS_ADC_SENSORX_PORT];
>   ProjectOtherM.ADC -> ADCC.ADC[TOS_ADC_SENSORY_PORT];
>   ProjectOtherM.ADC -> ADCC.ADC[TOS_ADC_SENSORZ_PORT];
>   ProjectOtherM.ADCControl -> ADCC;
>  
> }
> 
> ***************** ProjectOtherM.nc *****************
> includes IntMsg;
> includes SensorX;
> includes SensorY;
> includes SensorZ;
> 
> module ProjectOtherM {
> provides {
> interface StdControl;
> interface IntOutput;
> }
> uses {
>   interface StdControl as SubControl;
>   interface SendMsg;
>   interface Timer;
>   interface Leds;
>   interface ADC;
>   interface ADCControl;
> }
> }
> 
> implementation {
> int state;
> bool pending, flag_y, flag_g, flag_r;
> TOS_Msg msg_data;
> uint16_t ADCval;
> 
> void readIRSensor();
> task void chooseADCChannel();
> 
> /* interface StdControl */
> command result_t StdControl.init() {
> atomic ADCval = 0;
> atomic state = 1;
> pending = FALSE;
> call Leds.init();
>         call Leds.redOff();
>         call Leds.yellowOff();
>         call Leds.greenOff();
>         call ADCControl.init();
> 
> return call SubControl.init();
> }
> 
> command result_t StdControl.start() {
> call Timer.start(TIMER_REPEAT, 1000);
> return call SubControl.start();
> }
> 
> command result_t StdControl.stop() {
> return call SubControl.stop();
> }
> 
> /* interface IntOutput */
> command result_t IntOutput.output(uint16_t value) {
> IntMsg *message = (IntMsg *)msg_data.data;
> 
> if(!pending)
> {
>   pending = TRUE;  
>   readIRSensor();  
>   atomic {
>   message->val = ADCval;
>         /*message->src = TOS_LOCAL_ADDRESS;*/
>          if(!(state%3)) message->testval = 0x0099;
>          else if((state%3)==1) message->testval = 0x0088;
>          else message->testval = 0x0077;
>       }
>      
>       if (call SendMsg.send(0x0111, sizeof(IntMsg), &msg_data))
>         return SUCCESS;
>      
>       pending = FALSE;
> }
> return FAIL;
> }
> /* interface ADC */
> void readIRSensor(){
> call Leds.greenToggle();
>         call ADC.getData();
> }
>     async event result_t ADC.dataReady( uint16_t data ) {
>       ADCval = data;
>       post chooseADCChannel();
>       return SUCCESS;
>     }
> 
> task void chooseADCChannel()
> {
>   if(!(state%3)) call ADCControl.bindPort( TOS_ADC_SENSORX_PORT, 
> TOSH_ACTUAL_ADC_SENSORX_PORT );
>       else if((state%3)==1)call ADCControl.bindPort( 
> TOS_ADC_SENSORY_PORT, TOSH_ACTUAL_ADC_SENSORY_PORT );
>       else call ADCControl.bindPort( TOS_ADC_SENSORZ_PORT, 
> TOSH_ACTUAL_ADC_SENSORZ_PORT );
>      
> }
> 
> /* interface SendMsg */
> event result_t SendMsg.sendDone(TOS_MsgPtr msg, result_t success) {
>   if (pending && msg == &msg_data)
>       {
>     pending = FALSE;
>     if(success == 0) atomic state--;
>       }
>       return SUCCESS;
> }
> 
> /* interface Timer */
> event result_t Timer.fired() {
>   if (call IntOutput.output(state))
>         atomic state++;
>        dbg(DBG_USR1,"state=%i\n",state);
>        dbg(DBG_USR1,"ADCval=%i\n",ADCval);
>       return SUCCESS;
> }
> }
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-- 
Platform: WinXP/Cygwin
TinyOS version: 1.x, Boomerang
Programmer: MIB510
Device(s): Mica2, MicaZ, Tmote
Sensor board: homebrew