Raspberry Pi PCF8563 Real Time Clock (RTC)

„Having recently received my Raspberry Pi, one of the first things I wanted to do was hook up a real-time clock chip I had lying around (a NXP PCF8563) and learn how to drive I2C from the BCM2835 hardware registers. Turns out it’s quite easy to do, and I think makes a useful project to learn with.

So, here are some notes I made getting it to work, initially with Chris Boot’s forked kernel that incorporates some I2C handling code created by Frank Buss into the kernel’s I2C bus driver framework.“


(c) Kevin Sangeelee