1. FIFO and FIFOP are GPIO pins provided by the CC2420 radio. These are
status pins, and I believe they're used to indicate data exists in the RX
FIFO that can be read out by the microcontroller. The datasheet provides
more details.
2. If you haven't toggled the CSN line, and haven't used the
yeah, the FIFOP pin is triggered whenever the number of bytes, tipically set
to the length of the message, is equal or exceeds a programmable threshold,
while the FIFO pin indicates if there are bytes buffered by the radio and
available to be downloaded.
On Dec 19, 2007 12:14 PM, David Moss
