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/
Diff: CheckRTC.h
- Revision:
- 0:01ddb8e35845
- Child:
- 1:921a188e61c0
diff -r 000000000000 -r 01ddb8e35845 CheckRTC.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/CheckRTC.h Sat Nov 01 00:03:16 2014 +0000 @@ -0,0 +1,55 @@ +/* + * mbed Library program + * Check RTC function and set proper clock if we can set + * ONLY FOR "Nucleo Board" + * + * Copyright (c) 2010-2014 Kenji Arai / JH1PJL + * http://www.page.sannet.ne.jp/kenjia/index.html + * http://mbed.org/users/kenjiArai/ + * Created: October 24th, 2014 + * Revised: November 1st, 2014 + * + * 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 CHECK_RTC_H +#define CHECK_RTC_H + +#include "mbed.h" + +#define TIMEOUT ((uint32_t)5000) + +enum { + UNKNOWN = -1, + NG =0, + OK +}; + +/** Checking program for RTC module inside CPU + * Latest Nucleo board has external LSE Crystal X2 but no proper setting both HW ans SW + * This program intends to use RTC with X2 + * + * @code + * #include "mbed.h" + * #include "CheckRTC.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 CheckRTC(void); + +#endif // CHECK_RTC_H