Hello,
I am working with a RFM22B on a Breakout board hooked to a Duemilanove board, using the libraries from http://www.open.com.au/mikem/arduino/RF22/
When loading the example (RF22_snoop.pde), I get a “RF22 Init Failure”, more specifically when the init code reads the 0x00 register it has a null/empty value. I have verified that the pins are connected correctly, and there is 3.3 volts being delivered to the board. This setup worked 12 hours ago, and now fails the init. I would appreciate any steps that would help me troubleshoot this issue, which my guess is in the SPI communications.
D2 → IRQ
D10 → CSN
D11 → SDI
D12 → SDO
D13 → SCK
Thanks,
Jay