Hi Janos, I tried the default RadioCountToLeds with cc2420x, with only the following changes. Within 3 minutes, about 10% of nodes stop toggling led 2 and crash. If MilliTimer fires every 100 ms, about 30% of nodes crash.
* event void MilliTimer.fired() {* * counter++;* * call Leds.led2Toggle();* * ...* *}* * event message_t* Receive.receive(message_t* bufPtr, * * void* payload, uint8_t len) {* * dbg("RadioCountToLedsC", "Received packet of length %hhu.\n", len);* * if (len != sizeof(radio_count_msg_t)) {return bufPtr;}* * else {* *// radio_count_msg_t* rcm = (radio_count_msg_t*)payload;* *// if (rcm->counter & 0x1) {* *// call Leds.led0On();* *// }* *// else {* *// call Leds.led0Off();* *// }* *// if (rcm->counter & 0x2) {* *// call Leds.led1On();* *// }* *// else {* *// call Leds.led1Off();* *// }* *// if (rcm->counter & 0x4) {* *// call Leds.led2On();* *// }* *// else {* *// call Leds.led2Off();* *// }* * return bufPtr;* * }* * }* Please let me know if you have any idea what may go wrong. Thanks for your reply. -Xiaohui On Mon, Jan 14, 2013 at 12:37 PM, Janos Sallai <sal...@isis.vanderbilt.edu>wrote: > Xiaohui: > > I have not seen this issue. Can you verify that RadioCountToLeds > works? It's essentially the same application that you describe, with > 250ms delay instead of 100ms in your case. > > Can you put together a simple application that demonstrates this > "freezing" behavior? I'd be more than happy to take a look at it. > > Janos > > On Mon, Jan 14, 2013 at 11:22 AM, Xiaohui Liu <xiao...@wayne.edu> wrote: > > Hi everyone, > > > > I'm using CC2420X stack to deliver unicast traffic over 100 links. Every > > sender transmits with a period of 100 ms. Around 10% of the nodes crash > > within 3 minutes. I have witnessed similar issue before, don't know if > they > > are related. No node crashes if CC2420 stack is used. Does anyone > encounter > > this problem using CC2420X? Please do not hesitate to share any thought. > > Thank you. > > > > -- > > -Xiaohui Liu > > TelosB > > TinyOS 2.1.2 > > www.cs.wayne.edu/xliu/ > -- -Xiaohui Liu TelosB TinyOS 2.1.2 www.cs.wayne.edu/xliu/
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