rtc_config.h File Reference

#include "userDef.h"
#include "rtc/device/PCF8523.h"

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Overview

RTC Configuration and Driver Selection.

Author

Efinix Inc

This file automatically selects the correct I2C address and driver structure based on the user-defined ACTIVE_RTC_TYPE.

Copyright

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

Definition in file rtc_config.h.

Macros
Automatic Driver Selection
Resolves the low-level driver implementation based on ACTIVE_RTC_TYPE. This allows the user to switch RTC devices by changing a single configuration value in userDef.h. Note User can switch between supported RTC devices by changing the ACTIVE_RTC_TYPE macro. Add #define ACTIVE_RTC_TYPE RTC_TYPE_PCF8523 in userDef.h to use PCF8523 RTC. Add #define ACTIVE_RTC_TYPE RTC_TYPE_DS3231 in userDef.h to use DS3231 RTC. For custom RTC devices, include the custom driver header and define RTC_CTRL and RTC_DRIVER macros accordingly. Refer to userDef.h in rtcDemo of including a custom RTC driver.
#define	RTC_CTRL   RTC_PCF8523_ADDR
	I2C Address for the currently selected RTC (PCF8523).
#define	RTC_DRIVER   PCF8523_DRIVER
	Driver Interface Table for the currently selected RTC (PCF8523).