Dear All,
I am using TinyOS 1.x, and I am very confused about the way to obtain
the RSSI value which is provided by the manual of CC2420 radio transceiver.
1) The manual says the RSSI value is worked out over the 8 symbol
periods, does this mean it average 'every 8 symbol periods', or '8
symbol periods from the start of the new packet', or '8 symbol
periods,then shift one symbol period to do the next 8 symbol periods'?
2) I would like to confirm that if the RSSI values are issued by the
software stack when you read the strength field or by the hardware? If
it is done by software, is there a way to obtain the RSSI value by the
hardward method?
3) Is there more detail how the current software functions interacts
with the radio chip hardware?
4) I am using the TOSBase application to let the receiver to pick up
radio signal from the transimtter, and then feed the received data back
to the computer to read the RSSI value! However, is there any way to
change the basestation to the channel sensing state, so the receiver
just picks up whatever it receives and return the RSSI values while the
transmiter is switched off?
I really appreciate your help! Thank you very much!
Best regards,
Ruoshui Liu
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