Hi Michael,
Thanks for the hints. The antennas are attached. It could well be a
problem with the configuration. Doesn't TinyOS 2.x have a default radio
configuration (TX power, frequency) that should work? How do I define
transmit power and frequency?
Cheers,
Urs
On 11/24/10 6:19 PM, Michael Schippling wrote:
> Do you have antennas attached? And of course,
> define the frequency and transmit power correctly?
> Those were the two things that tripped me with mica2's.
> MS
>
>
>
> Urs Hunkeler wrote:
>> Hi,
>>
>> I have a couple of Mica2 (and Mica2Dot) motes and I wanted to use
>> them for some experiments, but somehow radio communication doesn't
>> seem to work. Is there anything special you need to do with the
>> CC1000 radio?
>>
>> Here's the simple test program I used. It works on TelosB and
>> TinyNode, but somehow does not work on Mica2 (and Mica2Dot). The LED
>> indicating a successful transmission blinks as expected. The LED
>> indicating errors stays off. But the LED indicating a successful
>> reception also stays off. So I assume that somehow the motes do not
>> receive any messages (I don't know whether they are really sending
>> anything). Any ideas?
>>
>> Cheers,
>> Urs
>>
>> ---------------
>> // TestAppC.nc
>> configuration TestAppC {
>> }
>> implementation {
>> components TestC;
>> components ActiveMessageC;
>> //components new AMSenderC(54);
>> //components new AMReceiverC(54);
>> components MainC;
>> components LedsC as Leds;
>> components new TimerMilliC() as Timer;
>>
>> TestC.Boot -> MainC;
>> TestC.RadioControl -> ActiveMessageC;
>> //TestC.Send -> AMSenderC;
>> TestC.Send -> ActiveMessageC.AMSend[54];
>> //TestC.Receive -> AMReceiverC;
>> TestC.Receive -> ActiveMessageC.Receive[54];
>> TestC.Leds -> Leds;
>> TestC.Timer -> Timer;
>> }
>>
>> --------------------------------
>> // TestC.nc
>> module TestC {
>> uses {
>> interface Boot;
>> interface SplitControl as RadioControl;
>> interface AMSend as Send;
>> interface Receive;
>> interface Timer<TMilli>;
>> interface Leds;
>> }
>> }
>> implementation {
>> message_t rPacket;
>>
>> event void Boot.booted() {
>> call RadioControl.start();
>> }
>>
>> event void RadioControl.startDone(error_t error) {
>> if(error == SUCCESS) {
>> call Timer.startPeriodic(1024L);
>> } else {
>> call Leds.led2On();
>> call RadioControl.start();
>> }
>> }
>>
>> event void RadioControl.stopDone(error_t error) {
>> }
>>
>> event message_t* Receive.receive(message_t* msg, void* payload,
>> uint8_t len) {
>> call Leds.led0Toggle();
>> return msg;
>> }
>>
>> event void Timer.fired() {
>> error_t error = call Send.send(AM_BROADCAST_ADDR, &rPacket, 5);
>> if(error != SUCCESS) {
>> call Leds.led2On();
>> }
>> }
>>
>> event void Send.sendDone(message_t* msg, error_t error) {
>> if(error != SUCCESS) {
>> call Leds.led2On();
>> } else {
>> call Leds.led1Toggle();
>> }
>> }
>> }
>>
>> _______________________________________________
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>> [email protected]
>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
>
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