49 lines
1.1 KiB
ReStructuredText
49 lines
1.1 KiB
ReStructuredText
|
class RTC --- real time clock
|
||
|
|
=============================
|
||
|
|
|
||
|
|
The RTC is and independent clock that keeps track of the date
|
||
|
|
and time.
|
||
|
|
|
||
|
|
Example usage::
|
||
|
|
|
||
|
|
rtc = pyb.RTC()
|
||
|
|
rtc.datetime((2014, 5, 1, 4, 13, 0, 0, 0))
|
||
|
|
print(rtc.datetime())
|
||
|
|
|
||
|
|
|
||
|
|
Constructors
|
||
|
|
------------
|
||
|
|
|
||
|
|
.. class:: pyb.RTC()
|
||
|
|
|
||
|
|
Create an RTC object.
|
||
|
|
|
||
|
|
|
||
|
|
Methods
|
||
|
|
-------
|
||
|
|
|
||
|
|
.. method:: rtc.datetime([datetimetuple])
|
||
|
|
|
||
|
|
Get or set the date and time of the RTC.
|
||
|
|
|
||
|
|
With no arguments, this method returns an 8-tuple with the current
|
||
|
|
date and time. With 1 argument (being an 8-tuple) it sets the date
|
||
|
|
and time.
|
||
|
|
|
||
|
|
The 8-tuple has the following format:
|
||
|
|
|
||
|
|
(year, month, day, weekday, hours, minutes, seconds, subseconds)
|
||
|
|
|
||
|
|
``weekday`` is 1-7 for Monday through Sunday.
|
||
|
|
|
||
|
|
``subseconds`` counts down from 255 to 0
|
||
|
|
|
||
|
|
.. method:: rtc.info()
|
||
|
|
|
||
|
|
Get information about the startup time and reset source.
|
||
|
|
|
||
|
|
- The lower 0xffff are the number of milliseconds the RTC took to
|
||
|
|
start up.
|
||
|
|
- Bit 0x10000 is set if a power-on reset occurred.
|
||
|
|
- Bit 0x20000 is set if an external reset occurred
|