Kenji Arai / Mbed OS Nucleo_RTC_battery_bkup_pwr_off_okay

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/

uart_as_stdio/uart_as_stdio.h@14:4b03106ece1f, 2021-03-06 (annotated)

Committer:
kenjiArai
Date:
Sat Mar 06 08:29:51 2021 +0000
Revision:
14:4b03106ece1f
run on mbed-os6.8.0

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 14:4b03106ece1f 1 /*
kenjiArai 14:4b03106ece1f 2 * mbed Application program
kenjiArai 14:4b03106ece1f 3 * Redirect Standard Input/Output
kenjiArai 14:4b03106ece1f 4 *
kenjiArai 14:4b03106ece1f 5 * Copyright (c) 2021 Kenji Arai / JH1PJL
kenjiArai 14:4b03106ece1f 6 * http://www7b.biglobe.ne.jp/~kenjia/
kenjiArai 14:4b03106ece1f 7 * https://os.mbed.com/users/kenjiArai/
kenjiArai 14:4b03106ece1f 8 * Created: January 13th, 2021
kenjiArai 14:4b03106ece1f 9 * Revised: January 14th, 2021
kenjiArai 14:4b03106ece1f 10 */
kenjiArai 14:4b03106ece1f 11
kenjiArai 14:4b03106ece1f 12 #include "mbed.h"
kenjiArai 14:4b03106ece1f 13
kenjiArai 14:4b03106ece1f 14 // Function prototypes --------------------------------------------------------
kenjiArai 14:4b03106ece1f 15 uint8_t readable(void);
kenjiArai 14:4b03106ece1f 16 void putc(uint8_t c);
kenjiArai 14:4b03106ece1f 17 uint8_t getc(void);
kenjiArai 14:4b03106ece1f 18 void sleep_preparation(void);