Implemented deepsleep, reset_cause and rtc functions memory, string a…

[smeenka]

From sha2017 (https://github.com/SHA2017-badge/micropython-examples-sha2017.git) I merged some stuff back into this repository.

module	function	status	remark
machine	reset	issue	on reboot unhandled exception
machine	reset_cause	OK
machine	deepsleep	OK	stop processor and wakeup in n milliseconds
machine	lightsleep	issue	on wakeup an exception. See https://github.com/espressif/esp-idf/issues/1024
machine	RTC	OK	fetch RTC module
machine.RTC	memory	OK	read/write one byte to RTC memory
machine.RTC	string	OK	read/write a string to RTC memory
machine.RTC	datetime	OK	read/write the current date tuple

[smeenka]

example usage for rtc.datetime(): import ntptime,time from machine import RTC as rtc t = ntptime.time() tm = time.localtime(t) rtc.datetime(tm)

[MrSurly]

@smeenka Much of SHA2017 deep sleep code was originally from this PR: https://github.com/micropython/micropython-esp32/pull/85, which is still pending.

[nubcore]

I've just tested the rtc functionality, which is looking good and #85 is now closed, anything in particular still holding this up?

[MrSurly]

@nubcore https://github.com/micropython/micropython/pull/3531

[nubcore]

@MrSurly thanks for the info and contribution! Is active developmed for esp32 still micropython-esp32, or did I miss a memo a couple months back and it now is all happening directly in micropython/ports/esp32?

[aykevl]

@nubcore The work continues on the main micropython repo, see https://github.com/micropython/micropython-esp32/issues/233

[nickzoic]

Hi yep, we did a switch over to the main repo now and this repo is really still just here for historical purposes. I'm going to push some changes to the README to clarify this, because while it was discussed at the time, we don't really expect everyone on the internet to watch the state of the project 24/7 :-) I'm making a start on reviewing some of the open PRs today ...

[dpgeorge]

All of this functionality is now merged in the upstream repo.