Hello i have being searching about reading the cca pin in cc2420, but i don't understand something. I want to detect if in some instant(maybe when something is being received) the channel is free or not. Bu the problem is that when i look at the cca pin, it always return true. Is there any other way to do this? What i want is use a chect timer that checks always the energy in the channel and if it detects valid energy it advises me. Bu t the cca pin seems not to work, o what cani do? i have read that when a packet is received you can read a field with the rssi value, but what i want is the energy in every instant not when the apcket has being received. Some help please. thanks a lot
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