Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/RTC"

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__FORCETOC__
 
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<section begin=Body/>
  
==Console interface ==
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== RTC ==
  
 
=== Description  ===
 
=== Description  ===
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An external lithium battery (like Panasonic [https://industrial.panasonic.com/ww/products/batteries/secondary-batteries/coin_rechargeable_lithium/models/ML2020 ML-2020/G1AN] rechargeable battery) can be optionally mounted on SBCX.
 
An external lithium battery (like Panasonic [https://industrial.panasonic.com/ww/products/batteries/secondary-batteries/coin_rechargeable_lithium/models/ML2020 ML-2020/G1AN] rechargeable battery) can be optionally mounted on SBCX.
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[[File:AXEL Lite-EVB-Battery-connector.png|thumb|center| 500px|Lithium battery]]
  
 
===Signals ===
 
===Signals ===

Latest revision as of 08:26, 9 January 2024

History
Issue Date Notes
2021/09/22 First EVK release



RTC[edit | edit source]

Description[edit | edit source]

SBCX uses the RTC device provided by AXEL Lite PMIC

An external lithium battery (like Panasonic ML-2020/G1AN rechargeable battery) can be optionally mounted on SBCX.


Lithium battery

Signals[edit | edit source]

The following table describes the interface signals:

Pin# SOM Pin# Pin name Pin function Pin Notes
- J10.14 PMIC_LICELL coin cell battery network has to be properly configured for lithium battery recharge current

Device mapping[edit | edit source]

RTC is mapped to /dev/rtc0 device in Linux.

Device usage[edit | edit source]

The peripheral can be accessed through the date and hwclock linux commands.