PCF8523.h File Reference

#include "rtc/rtc.h"

Go to the source code of this file.

Overview

PCF8523 Driver API definitions. This file provides data structures and APIs for controlling the PCF8523 RTC device on the EfxSapphireSoC platform.

Author

Efinix Inc

Note

This is a device-specific driver implementation for the PCF8523 RTC.

Copyright

2013-2026 Efinix Inc. All rights reserved.
See the full License Information for Efinix and SaxonSoc MIT terms.

Definition in file PCF8523.h.

Macros
#define	MUX_ADDR   0x71<<1
	I2C Address for Mux device.
#define	RTC_PCF8523_ADDR   0x68<<1
	I2C Address for PCF8523 RTC device.

Functions
rtc_status_t	PCF8523_getCSR (rtc_instance_t *rtc)
	Get control/status register from PCF8523 RTC.
rtc_status_t	PCF8523_getTime (rtc_instance_t *rtc)
	Get time from PCF8523 RTC.
rtc_status_t	PCF8523_setTime (rtc_instance_t *rtc)
	Set time on PCF8523 RTC.
rtc_status_t	PCF8523_setTimeSystem (rtc_instance_t *rtc, u8 use_12hour_mode)
	Set time system (12-hour or 24-hour) on PCF8523 RTC.

Variables
const rtc_api_t	PCF8523_DRIVER
	PCF8523 Driver Instance. Point your generic RTC pointer to this structure to use the PCF8523 hardware.