RFM69::initialize returning "false" TRUE

[kythre]

RFM69::initialize is returning true on a completely bare Arduino Nano. Tried it on two separate Nanos with generic code as below. loop() runs as expected

#include <RFM69.h>    //get it here: https://www.github.com/lowpowerlab/rfm69
#include <RFM69_ATC.h>//get it here: https://github.com/lowpowerlab/RFM69
#include <SPI.h>      //included with Arduino IDE (www.arduino.cc)
#include <SPIFlash.h> //get it here: https://www.github.com/lowpowerlab/spiflash

RFM69_ATC radio;

void setup() {
  Serial.begin(115200);
  Serial.println("START!");

  Serial.println("Initializing radio...");

  if (!radio.initialize(RF69_915MHZ,123,200))
    Serial.println("radio.init() FAIL");
  else
    Serial.println("radio.init() SUCCESS");

  radio.enableAutoPower(-80);
}

void loop() {
  Serial.println("Loop");
  delay(1000);
}

[LowPowerLab]

@kythre Thanks, it seems to be intermittent (the SUCCESS vs FAIL with no module). There is no definite check if the module responds the way it should, so I added the missing checks and it should now be resolved.

[kythre]

awesome, thank you for the quick update. from some quick googling, it looks like those checks are just to check that SPI (and the requisite wiring) is working. is that correct?

[LowPowerLab]

The checks are to ensure that what is written to a certain set of registers is the same as what can be read back from those same registers.