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Content preview: In module CC2420ControlP, I found this: 395 event void
RssiResource.granted()
{ 396 uint16_t data; 397 call CSN.clr(); 398 call RSSI.read(&data); 399 call
CSN.set(); 400 401 call RssiResource.release(); *402 data += 0x7f;* 403 data
&= 0x00ff; 404 signal ReadRssi.readDone(SUCCESS, data); 405 } [...]
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--- Begin Message ---
In module CC2420ControlP, I found this:
395 event void RssiResource.granted() {
396 uint16_t data;
397 call CSN.clr();
398 call RSSI.read(&data);
399 call CSN.set();
400
401 call RssiResource.release();
*402 data += 0x7f;*
403 data &= 0x00ff;
404 signal ReadRssi.readDone(SUCCESS, data);
405 }
And I want to know why plus 0x7f.
Thank you very much.
--
Best Regards,
SANG JUNJUN
Hi guys
1
In module CC2420ControlP, I found this:
395 event void RssiResource.granted() {
396 uint16_t data;
397 call CSN.clr();
398 call RSSI.read(&data);
399 call CSN.set();
400
401 call RssiResource.release();
*402 data += 0x7f;*
403 data &= 0x00ff;
404 signal ReadRssi.readDone(SUCCESS, data);
405 }
And I want to know why plus 0x7f.
2
In 120-140 lines of RssiToSerialP.nc
atomic{ //atomic是可插入的
给total数值
total += val;
//val是CC2420ControlP.nc中得出 给read数值
reads ++;
if(largest < val){
largest = val;
}
}
if(reads == (1<<LOG2SAMPLES)){
I don't konw what do this to total ,reads ,largets and what is the mean of
LOG2SAMPLES?
if you are a chinese, you can tell me in chinese!
Thanks
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