Difference between revisions of "RTC (Bora/BoraLite)"
DevWikiAdmin (talk | contribs) (Created page with "{{InfoBoxTop}} {{Applies To Bora}} {{InfoBoxBottom}} An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time clock (RTC) resour...") |
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{{InfoBoxTop}} | {{InfoBoxTop}} | ||
{{Applies To Bora}} | {{Applies To Bora}} | ||
| + | {{Applies To BoraLite}} | ||
{{InfoBoxBottom}} | {{InfoBoxBottom}} | ||
| + | {{ObsoleteWikiPage|link=BORA Lite SOM}} | ||
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| + | <section begin=Body/> | ||
An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time clock (RTC) resource with: | An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time clock (RTC) resource with: | ||
* Temperature-compensated crystal oscillator | * Temperature-compensated crystal oscillator | ||
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* 236 Bytes of Battery-Backed SRAM | * 236 Bytes of Battery-Backed SRAM | ||
* I²C Interface | * I²C Interface | ||
| − | Backup power is provided through the RTC_VBAT | + | Backup power is provided through the RTC_VBAT signal: |
| + | |||
| + | * on Bora it is connected to J2.113 | ||
| + | * on Bora Lite it is connected to J1.22 | ||
| + | |||
| + | If not used, RTC_VBAT must be externally connected to GND. For a detailed description of RTC characteristics, please refer to the DS3232 datasheet. | ||
| + | |||
| + | <section end=Body/> | ||
Latest revision as of 08:24, 18 July 2023
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THIS PAGE IS OBSOLETE, DON'T USE IT AS REFERENCE |
| The new documentation is available here: BORA Lite SOM | |
An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time clock (RTC) resource with:
- Temperature-compensated crystal oscillator
- Date, time and calendar
- Alarm capability
- Backup power from external battery
- ±3.5ppm accuracy from -40°C to +85°C
- 236 Bytes of Battery-Backed SRAM
- I²C Interface
Backup power is provided through the RTC_VBAT signal:
- on Bora it is connected to J2.113
- on Bora Lite it is connected to J1.22
If not used, RTC_VBAT must be externally connected to GND. For a detailed description of RTC characteristics, please refer to the DS3232 datasheet.
