1

I know the procedure to enable an external RTC, but I just wonder which are the available supported chip (in config.txt and to use with modprobe).

Where can I find such a list?

Mark
  • 533
  • 2
  • 11
  • 23

1 Answers1

3

Read /boot/overlays/README particularly the i2c-rtc section.

DO NOT use modprobe use Device Tree!

Pick any of the listed modules.

I recommend ds3231 which is a good performer and works from 3.3V, although many of the others work well.

Milliways
  • 62,573
  • 32
  • 113
  • 225