Kenji Arai
In the past, you need modify rtc_api.c in mbed-dev source code. From this revision, you can just use RTC function all of conditions (Normal, Reset, Stand-by, Power OFF).
Note
From now on, you do NOT need any modification for mbed-dev library because STM team updates rtc_api.c source code and support RTC function under reset & standby condition includes power off condition (You need additional VBAT back-up hardware).
Please refer following NOTE information.
/users/kenjiArai/notebook/nucleo-series-rtc-control-under-power-onoff-and-re/
History
run on mbed-os6.8.0
2021-03-06, by kenjiArai [Sat, 06 Mar 2021 08:29:51 +0000] rev 14
run on mbed-os6.8.0
add boards
2021-01-11, by kenjiArai [Mon, 11 Jan 2021 07:55:27 +0000] rev 13
add boards
run on mbed-os-6.6.0
2021-01-06, by kenjiArai [Wed, 06 Jan 2021 23:57:37 +0000] rev 12
run on mbed-os-6.6.0
changed RawSerial to BufferedSerial on mbed-os-6.2.0(mbed_version.h=set correct version)
2020-08-01, by kenjiArai [Sat, 01 Aug 2020 07:26:13 +0000] rev 11
changed RawSerial to BufferedSerial on mbed-os-6.2.0(mbed_version.h=set correct version)
run on mbed-os6.2.0 (mbed_version.h = os5.15.4)
2020-07-18, by kenjiArai [Sat, 18 Jul 2020 22:46:14 +0000] rev 10
run on mbed-os6.2.0 (mbed_version.h = os5.15.4)
mbed supports RTC function during RESET & Power ON/OFF. You don't need any modification for mbed library source code. You can just check RTC!!
2017-01-16, by kenjiArai [Mon, 16 Jan 2017 09:38:03 +0000] rev 9
mbed supports RTC function during RESET & Power ON/OFF. You don't need any modification for mbed library source code. You can just check RTC!!
Added F746xx
2016-07-02, by kenjiArai [Sat, 02 Jul 2016 03:08:52 +0000] rev 8
Added F746xx
added L476RG.
2016-05-27, by kenjiArai [Fri, 27 May 2016 20:19:49 +0000] rev 7
added L476RG.
Use mbed-dev lib. (old rev. -> use mbed-src)
2016-01-29, by kenjiArai [Fri, 29 Jan 2016 07:51:04 +0000] rev 6
Use mbed-dev lib. (old rev. -> use mbed-src)
Change SetRTC parameter. Add F344R8 mbed.
2015-05-23, by kenjiArai [Sat, 23 May 2015 22:26:37 +0000] rev 5
Change SetRTC parameter. Add F344R8 mbed.