libboard/include/rtc_calib.h

0001 /* ---------------------------------------------------------------------------- */
0002 /*                  Atmel Microcontroller Software Support                      */
0003 /*                       SAM Software Package License                           */
0004 /* ---------------------------------------------------------------------------- */
0005 /* Copyright (c) 2015, Atmel Corporation                                        */
0006 /*                                                                              */
0007 /* All rights reserved.                                                         */
0008 /*                                                                              */
0009 /* Redistribution and use in source and binary forms, with or without           */
0010 /* modification, are permitted provided that the following condition is met:    */
0011 /*                                                                              */
0012 /* - Redistributions of source code must retain the above copyright notice,     */
0013 /* this list of conditions and the disclaimer below.                            */
0014 /*                                                                              */
0015 /* Atmel's name may not be used to endorse or promote products derived from     */
0016 /* this software without specific prior written permission.                     */
0017 /*                                                                              */
0018 /* DISCLAIMER:  THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR   */
0019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
0020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE   */
0021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,      */
0022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */
0023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,  */
0024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF    */
0025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING         */
0026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */
0027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                           */
0028 /* ---------------------------------------------------------------------------- */
0029
0030 /**
0031  * \file
0032  *
0033  * Interface for Real Time Clock calibration (RTC) .
0034  *
0035  */
0036
0037 /** RTC crystal **/
0038
0039
0040 typedef struct {
0041     int8_t Tempr;
0042     int16_t PPM;
0043     uint8_t NEGPPM;
0044     uint8_t HIGHPPM;
0045     uint16_t CORRECTION;
0046 } RTC_PPMLookup;
0047
0048
0049 extern void RTC_ClockCalibration(Rtc *pRtc, int32_t CurrentTempr);