Real-time clock options (SBC Lynx)
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IntroductionEdit
This article describes the options available for the real-time clock (RTC) implementation on SBC Lynx.
i.MX6UL's native RTC (default option)Edit
The default option is based on i.MX6UL's native RTC. The simplified block diagram of this solution is depicted in the following image.
When the system is powered off, on-board battery powers i.MX6UL's native RTC.
When the system is powered on, the battery is recharged.
This solution is quite simple and cheap. However, it TBD. In case a longer timekeeping operation time is required, it is possible to not populate the on-board battery and to connect a bigger one to the connector J56. For more information, please contact Sales department.
ST M41T83 (alternative option)Edit
This option is based on [ST M41T83 http://www.st.com/en/clocks-and-timers/m41t83.html] RTC. The simplified block diagram of this solution is depicted in the following image.
This solution is more expensive but guarantees a longer timekeeping operation time, because M41T83 power consumption is very low. In any case, it is possible to not populate the on-board battery and to connect a bigger one to the connector J56 to achieve an even longer operation time. For more information, please contact Sales department.