AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/RTC
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Contents
RTC interfaceEdit
DescriptionEdit
The AXEL ULite Evaluation Kit may uses the RTC device provided by i.MX6UL's native RTC
An external lithium battery (like Panasonic ML-2020/G1AN rechargeable battery) can be optionally connected to the AXEL ULite Evaluation Kit J4 connector.
J4 is a Molex 53398-0271 PicoBlade connector
SignalsEdit
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| J4.1 | J1.14 | PMIC_LICELL | RTC / VDD SNVS pin | coin cell battery network has to be properly configured for lithium battery recharge current |
Device mappingEdit
RTC is mapped to /dev/rtc0 device in Linux.
Device usageEdit
The peripheral can be accessed through the date and hwclock linux commands.