PCF85063A Zephyr RTC Driver

Usage

Add to your west.yml manifest:

manifest:
  projects:
    # RTC Driver
    - name: pcf85063a
      url: https://github.com/circuitdojo/pcf85063a
      revision: master
      path: pcf85063a

This will import the driver and allow you to use it in your code.

Additionally make sure that you run west update when you've added this entry to your west.yml.

Configuration

Add this entry to your .conf

# RTC
CONFIG_COUNTER=y
CONFIG_PCF85063A=y

Overlay

Here is an example of defining the PCF85063A in your .overlay

&i2c1 {
    compatible = "nordic,nrf-twim";
    status = "okay";

    pinctrl-0 = <&i2c1_default>;
    pinctrl-1 = <&i2c1_sleep>;
    pinctrl-names = "default", "sleep";
    pcf85063a: pcf85063a@51 {
        compatible = "nxp,pcf85063a";
        reg = <0x51>;
    };
};

Import

For time set/get you will need to include:

#include <zephyr/drivers/counter.h>
#include <drivers/counter/pcf85063a.h>

Import

You can get the device by it's node label, for example:

#define RTC DEVICE_DT_GET(DT_NODELABEL(pcf85063a))

const struct device *const rtc = RTC;

static void rtc_init() {
  /* Check device readiness */
  if (!device_is_ready(rtc)) {
    LOG_ERR("pcf85063a isn't ready!");
  }
  ...
};