Open main menu

DAVE Developer's Wiki β

Changes

RTC (AxelUltra)

638 bytes added, 13:54, 25 March 2014
Created page with "{{InfoBoxTop}} {{AppliesToAxel}} {{InfoBoxBottom}} == On-board RTC == An on-board Maxim Integrated DS3232 device provides a very accurate, temperature-compensated real-time c..."
{{InfoBoxTop}}
{{AppliesToAxel}}
{{InfoBoxBottom}}

== On-board RTC ==
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 (J1.124) signal. If not used, RTC_VBAT must be externally connected to VCC.

For a detailed description of RTC characteristics, please refer to the DS3232 datasheet.