In CC2420 datasheet, it says that " If an overflow occurs in the RXFIFO,
this is signalled to the microcontroller by setting the FIFO pin low while
the FIFOP pin is high. " But I am confused when I read the code in CC2420
for TinyOS-1.x.
>From the code ,it seems that both FIFO pin and FIFOP pin are low when FIFO
overflow happens.
Following code is copied from CC2420RadioM.nc:
// if a FIFO overflow occurs or if the data length is invalid, flush
// the RXFIFO to get back to a normal state.
if ((!TOSH_READ_CC_FIFO_PIN() && !TOSH_READ_CC_FIFOP_PIN())) {
flushRXFIFO();
}
--
Renjie
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