Diff: SetRTC.h

Revision:

0:e4c20fd769f1

Child:

1:3129de8d50ea

Child:

2:765470eab2a6

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SetRTC.h	Sat Feb 07 02:19:57 2015 +0000
@@ -0,0 +1,63 @@
+/*
+ * mbed Library program
+ *      Check & set RTC function and set proper clock if we can set
+ *      ONLY FOR "Nucleo Board"
+ *
+ *  Copyright (c) 2014-2015 Kenji Arai / JH1PJL
+ *  http://www.page.sannet.ne.jp/kenjia/index.html
+ *  http://mbed.org/users/kenjiArai/
+ *      Created:  October   24th, 2014
+ *      Revised:  Feburary   7th, 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
+ * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER  LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SET_RTC_H
+#define SET_RTC_H
+
+#include "mbed.h"
+
+#define TIMEOUT     ((uint32_t)5000)
+#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.
+ *      This is cased by mbed initial subroutine problem.
+ *      This program intends to use RTC with X2 and works well with battery back-up hardware setting.
+ *
+ * @code
+ * #include "mbed.h"
+ * #include "SetRTC.h"
+ *
+ * int main() {
+ *   time_t seconds;
+ *
+ *   CheckRTC();
+ *   printf("Time: %s", ctime(&seconds));
+ * }
+ * @endcode
+ */
+
+/** Check and Set RTC
+  * @param none
+  * @return if proper setting = OK, if not = NG and UNKNOWN-> no support this program
+  */
+int32_t SetRTC(void);
+
+void show_RTC_reg( void );
+
+void time_enter_mode(void);
+
+#endif      // SET_RTC_H