Kenji Arai / SetRTC

This is a RTC additional function. This is only for Nucleo F401RE & F411RE mbed(Added L152RE, F334R8, L476RG & F746xx). If you connected battery backup circuit for internal RTC, you can make a power-off and reset condition. RTC still has proper time and date.

Dependents:   Nucleo_rtos_sample PB_Emma_Ethernet

Please refer following NOTE information.
/users/kenjiArai/notebook/nucleo-series-rtc-control-under-power-onoff-and-re/

Diff: SetRTC.h

Revision:
6:ef7d2c83034d
Parent:
5:1a8e7aed053d
Child:
7:fa32602e23ec
--- a/SetRTC.h	Wed Feb 18 09:14:28 2015 +0000
+++ b/SetRTC.h	Thu Feb 19 02:56:12 2015 +0000
@@ -7,7 +7,7 @@
  *  http://www.page.sannet.ne.jp/kenjia/index.html
  *  http://mbed.org/users/kenjiArai/
  *      Created:  October   24th, 2014
- *      Revised:  Feburary  18th, 2015
+ *      Revised:  Feburary  19th, 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
@@ -38,12 +38,6 @@
 #define RTC_DAT0    0x55aa55aa
 #define RTC_DAT1    0xaa55aa55
 
-enum {
-    UNKNOWN = -1,
-    OK = 0,
-    NG
-};
-
 /** Check and set RTC module inside Nucleo STM32X CPU.
  *      Latest Nucleo board has external LSE Crystal X2 but no proper setting both HW ans SW.
  *      In addition, every power on and/or reset make initial condition even HW Backup condition.
@@ -66,7 +60,7 @@
 
 /** Check and Set RTC
   * @param none
-  * @return if proper setting = OK, if not = NG and UNKNOWN-> no support this program
+  * @return if proper setting = 1, if not = 0
   */
 int32_t SetRTC(void);