RFM12B clear interrupt

[Witace12]

Having trouble converting from polled to interrupt driven receiver code.

When the transmit message is complete, I cannot clear the IRQ pin by reading all the bytes in the FIFO.

Seems like the RX might be triggering on noise.

[Felix]

The library is already interrupt driven when a packet is received. You just poll the library to check if it already has read a packet from the transceiver.