e444274e95
The DS3231 is an I2C real-time clock with internal temperature compensated oscillator, maintaining civil time to 1 s precision with nominal 2 ppm accuracy from 0-40 Cel. The basic functionality is exposed as a counter that is always running at 1 Hz. Much more functionality is exposed as driver-specific API, including the ability to translate between the time scale of the DS3231 and the time scale of the Zephyr uptime clock. This allows correlation of events in the system clock to UTC, TAI, or whatever time scale is used to maintain the DS3231. Signed-off-by: Peter A. Bigot <pab@pabigot.com>
19 lines
404 B
Plaintext
19 lines
404 B
Plaintext
# Copyright (c) 2019 Peter Bigot Consulting, LLC
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#
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# SPDX-License-Identifier: Apache-2.0
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#
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config COUNTER_MAXIM_DS3231
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bool "Maxim DS3231 RTC/TCXO"
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select I2C
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select POLL
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help
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Enable counter driver based on Maxim DS3231 I2C device.
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config COUNTER_MAXIM_DS3231_INIT_PRIORITY
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int "Init priority"
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depends on COUNTER_MAXIM_DS3231
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default 65
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help
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DS3231 device driver initialization priority.
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