Kenji Arai / CheckRTC

Checking program for RTC module inside CPU.

Dependents:   RTC_w_COM Frequency_Counter_w_GPS_1PPS debug_tools Nucleo_RTC_Clock_setting ... more

Please refer below link.
http://developer.mbed.org/users/kenjiArai/notebook/nucleo-series-clock-structure-and-xtal-oscillation/

CheckRTC.h@3:babcde30190d, 2015-05-16 (annotated)

Committer:
kenjiArai
Date:
Sat May 16 23:34:53 2015 +0000
Revision:
3:babcde30190d
Parent:
2:2ee7a7260cbf 
small modification

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:01ddb8e35845 1 /*
kenjiArai 0:01ddb8e35845 2 * mbed Library program
kenjiArai 0:01ddb8e35845 3 * Check RTC function and set proper clock if we can set
kenjiArai 0:01ddb8e35845 4 * ONLY FOR "Nucleo Board"
kenjiArai 0:01ddb8e35845 5 *
kenjiArai 3:babcde30190d 6 * Copyright (c) 2010-2015 Kenji Arai / JH1PJL
kenjiArai 0:01ddb8e35845 7 * http://www.page.sannet.ne.jp/kenjia/index.html
kenjiArai 0:01ddb8e35845 8 * http://mbed.org/users/kenjiArai/
kenjiArai 0:01ddb8e35845 9 * Created: October 24th, 2014
kenjiArai 3:babcde30190d 10 * Revised: May 16th, 2015
kenjiArai 0:01ddb8e35845 11 *
kenjiArai 0:01ddb8e35845 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
kenjiArai 0:01ddb8e35845 13 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE
kenjiArai 0:01ddb8e35845 14 * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
kenjiArai 0:01ddb8e35845 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
kenjiArai 0:01ddb8e35845 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
kenjiArai 0:01ddb8e35845 17 */
kenjiArai 0:01ddb8e35845 18
kenjiArai 0:01ddb8e35845 19 #ifndef CHECK_RTC_H
kenjiArai 0:01ddb8e35845 20 #define CHECK_RTC_H
kenjiArai 0:01ddb8e35845 21
kenjiArai 0:01ddb8e35845 22 #include "mbed.h"
kenjiArai 0:01ddb8e35845 23
kenjiArai 0:01ddb8e35845 24 #define TIMEOUT ((uint32_t)5000)
kenjiArai 0:01ddb8e35845 25
kenjiArai 0:01ddb8e35845 26 enum {
kenjiArai 0:01ddb8e35845 27 UNKNOWN = -1,
kenjiArai 0:01ddb8e35845 28 NG =0,
kenjiArai 0:01ddb8e35845 29 OK
kenjiArai 0:01ddb8e35845 30 };
kenjiArai 0:01ddb8e35845 31
kenjiArai 0:01ddb8e35845 32 /** Checking program for RTC module inside CPU
kenjiArai 0:01ddb8e35845 33 * Latest Nucleo board has external LSE Crystal X2 but no proper setting both HW ans SW
kenjiArai 0:01ddb8e35845 34 * This program intends to use RTC with X2
kenjiArai 0:01ddb8e35845 35 *
kenjiArai 0:01ddb8e35845 36 * @code
kenjiArai 0:01ddb8e35845 37 * #include "mbed.h"
kenjiArai 0:01ddb8e35845 38 * #include "CheckRTC.h"
kenjiArai 0:01ddb8e35845 39 *
kenjiArai 0:01ddb8e35845 40 * int main() {
kenjiArai 0:01ddb8e35845 41 * time_t seconds;
kenjiArai 0:01ddb8e35845 42 *
kenjiArai 0:01ddb8e35845 43 * CheckRTC();
kenjiArai 0:01ddb8e35845 44 * printf("Time: %s", ctime(&seconds));
kenjiArai 0:01ddb8e35845 45 * }
kenjiArai 0:01ddb8e35845 46 * @endcode
kenjiArai 0:01ddb8e35845 47 */
kenjiArai 0:01ddb8e35845 48
kenjiArai 0:01ddb8e35845 49 /** Check and Set RTC
kenjiArai 0:01ddb8e35845 50 * @param none
kenjiArai 0:01ddb8e35845 51 * @return if proper setting = OK, if not = NG and UNKNOWN-> no support this program
kenjiArai 0:01ddb8e35845 52 */
kenjiArai 3:babcde30190d 53 int32_t CheckRTC(void);
kenjiArai 1:921a188e61c0 54 uint32_t get_RTCSEL(void);
kenjiArai 0:01ddb8e35845 55
kenjiArai 0:01ddb8e35845 56 #endif // CHECK_RTC_H