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/

Diff: main.cpp

Revision:
3:7b3edf54c706
Parent:
2:77ec44bf1fa5
Child:
4:a9cebfe4715f
--- a/main.cpp	Mon Feb 16 13:07:57 2015 +0000
+++ b/main.cpp	Wed Feb 18 09:15:37 2015 +0000
@@ -6,7 +6,7 @@
  *  http://www.page.sannet.ne.jp/kenjia/index.html
  *  http://mbed.org/users/kenjiArai/
  *      Created: January   17th, 2015
- *      Revised: Feburary  16th, 2015
+ *      Revised: Feburary  18th, 2015
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
  * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
@@ -110,15 +110,16 @@
                 //          12345678
                 lcd.printf("  Sleep " );
 #endif
-                pc.printf("\r\nEnter Deep Sleep Mode, please push RESET to wake-up\r\n");
+                //             123456789012345678901234567890123456789012345678
+                pc.printf("\r\nEnter Standby Mode, please push RESET to wake-up\r\n");
                 wait(1.0);
                 myled = 0;
-                deepsleep_preparation();      
-                deepsleep();
+                goto_standby();
             }
         }
         if (counter){
-            pc.printf("                                                                 \r");
+            //         12345678901234567890123456789012345678901234567890
+            pc.printf("                                                  \r");
         }
         myled = !myled;
     }