Thanks for sharing the code!
I have tried to communicate with MAX6963 but to no avail. Do you actually know the difference between MAX6960/1/2/3 ?
One important thing when hooking it up to the Arduino is that you should put voltage dividers on all lines going to the MAX6960 since it runs on 3.3 volts! Signals going back to the Arduino are being interpreted correctly since +3.3 equals 1 also for the Arduino.
Did you work further on your code? As far as i can tell you are just initializing the chip. How would you actually light up the LEDs??
Would be good to receive also something from the chip itself.. like the device id for example:
uint8_t devid = (read16(0x8500) & 0x60) >> 5;
Thanks for your help
bye