Difference between revisions of "AXEL ULite SOM/AXEL ULite Evaluation Kit/Interfaces and Connectors/RTC"
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!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | ||
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!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | !style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes | ||
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==RTC interface == | ==RTC interface == | ||
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=== Description === | === Description === | ||
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The peripheral can be accessed through the <code>date</code> and <code>hwclock</code> linux commands. | The peripheral can be accessed through the <code>date</code> and <code>hwclock</code> linux commands. | ||
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[[Category:AXEL ULite]] | [[Category:AXEL ULite]] | ||
Latest revision as of 10:29, 9 January 2024
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| History | |||
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| Issue Date | Notes | ||
| 2021/07/19 | First EVK release | ||
RTC interface[edit | edit source]
Description[edit | edit source]
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
Signals[edit | edit source]
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 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.
