I'm trying to use Arduino 1.6.5 to program Attiny84 as SPI slave. I could upload a blink sketch following tutorial on http://highlowtech.org/?p=1695. I found a library to use Attiny84 as SPI master (https://github.com/JChristensen/tinySPI). I found two old threads on this topic which don't work with Arduino 1.6.5: http://forum.arduino.cc/index.php?topic=126771.0 http://forum.arduino.cc/index.php?topic=174341.0
However after hours of search, I found no tutorial or library to program Attiny84 or Attiny85 as SPI slave with Arduino 1.6.
Any help would be greatly appreciated.