Harry Keane / X_NUCLEO_GNSS1A1

Demo

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Middlewares/NMEAUtils.c@0:a77f1f1f8318, 2018-11-09 (annotated)

Committer:
apalmieri
Date:
Fri Nov 09 17:06:11 2018 +0000
Revision:
0:a77f1f1f8318
Initial commit

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apalmieri 0:a77f1f1f8318 1 /**
apalmieri 0:a77f1f1f8318 2 *******************************************************************************
apalmieri 0:a77f1f1f8318 3 * @file NMEA_utils.c
apalmieri 0:a77f1f1f8318 4 * @author AST / Central Lab
apalmieri 0:a77f1f1f8318 5 * @version V1.0.0
apalmieri 0:a77f1f1f8318 6 * @date 18-May-2017
apalmieri 0:a77f1f1f8318 7 * @brief NMEA utilities
apalmieri 0:a77f1f1f8318 8 *
apalmieri 0:a77f1f1f8318 9 *******************************************************************************
apalmieri 0:a77f1f1f8318 10 * @attention
apalmieri 0:a77f1f1f8318 11 *
apalmieri 0:a77f1f1f8318 12 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
apalmieri 0:a77f1f1f8318 13 *
apalmieri 0:a77f1f1f8318 14 * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
apalmieri 0:a77f1f1f8318 15 * You may not use this file except in compliance with the License.
apalmieri 0:a77f1f1f8318 16 * You may obtain a copy of the License at:
apalmieri 0:a77f1f1f8318 17 *
apalmieri 0:a77f1f1f8318 18 * http://www.st.com/software_license_agreement_liberty_v2
apalmieri 0:a77f1f1f8318 19 *
apalmieri 0:a77f1f1f8318 20 * Redistribution and use in source and binary forms, with or without modification,
apalmieri 0:a77f1f1f8318 21 * are permitted provided that the following conditions are met:
apalmieri 0:a77f1f1f8318 22 * 1. Redistributions of source code must retain the above copyright notice,
apalmieri 0:a77f1f1f8318 23 * this list of conditions and the following disclaimer.
apalmieri 0:a77f1f1f8318 24 * 2. Redistributions in binary form must reproduce the above copyright notice,
apalmieri 0:a77f1f1f8318 25 * this list of conditions and the following disclaimer in the documentation
apalmieri 0:a77f1f1f8318 26 * and/or other materials provided with the distribution.
apalmieri 0:a77f1f1f8318 27 * 3. Neither the name of STMicroelectronics nor the names of its contributors
apalmieri 0:a77f1f1f8318 28 * may be used to endorse or promote products derived from this software
apalmieri 0:a77f1f1f8318 29 * without specific prior written permission.
apalmieri 0:a77f1f1f8318 30 *
apalmieri 0:a77f1f1f8318 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
apalmieri 0:a77f1f1f8318 32 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
apalmieri 0:a77f1f1f8318 33 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
apalmieri 0:a77f1f1f8318 34 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
apalmieri 0:a77f1f1f8318 35 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
apalmieri 0:a77f1f1f8318 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
apalmieri 0:a77f1f1f8318 37 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
apalmieri 0:a77f1f1f8318 38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
apalmieri 0:a77f1f1f8318 39 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
apalmieri 0:a77f1f1f8318 40 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
apalmieri 0:a77f1f1f8318 41 *
apalmieri 0:a77f1f1f8318 42 ********************************************************************************
apalmieri 0:a77f1f1f8318 43 */
apalmieri 0:a77f1f1f8318 44
apalmieri 0:a77f1f1f8318 45 #include "string.h"
apalmieri 0:a77f1f1f8318 46 #include "NMEAUtils.h"
apalmieri 0:a77f1f1f8318 47
apalmieri 0:a77f1f1f8318 48 /** @defgroup Middlewares
apalmieri 0:a77f1f1f8318 49 * @brief Contains all platform independent modules (eg. NMEA Sentence Parser, ...).
apalmieri 0:a77f1f1f8318 50 * @{
apalmieri 0:a77f1f1f8318 51 */
apalmieri 0:a77f1f1f8318 52
apalmieri 0:a77f1f1f8318 53 /** @defgroup ST
apalmieri 0:a77f1f1f8318 54 * @{
apalmieri 0:a77f1f1f8318 55 */
apalmieri 0:a77f1f1f8318 56
apalmieri 0:a77f1f1f8318 57 /** @defgroup LIB_NMEA
apalmieri 0:a77f1f1f8318 58 * @{
apalmieri 0:a77f1f1f8318 59 */
apalmieri 0:a77f1f1f8318 60
apalmieri 0:a77f1f1f8318 61 /** @defgroup NMEA_UTILS
apalmieri 0:a77f1f1f8318 62 * @{
apalmieri 0:a77f1f1f8318 63 */
apalmieri 0:a77f1f1f8318 64
apalmieri 0:a77f1f1f8318 65 /** @addtogroup NMEA_UTILS_PUBLIC_FUNCTIONS
apalmieri 0:a77f1f1f8318 66 * @{
apalmieri 0:a77f1f1f8318 67 */
apalmieri 0:a77f1f1f8318 68 /**
apalmieri 0:a77f1f1f8318 69 * @brief Scans a string with UTC info and fills all fields of a
apalmieri 0:a77f1f1f8318 70 * UTC_Info struct
apalmieri 0:a77f1f1f8318 71 * @param utc_str NMEA UTC string
apalmieri 0:a77f1f1f8318 72 * @param utc The UTC_Info struct to fill
apalmieri 0:a77f1f1f8318 73 * @retval None
apalmieri 0:a77f1f1f8318 74 */
apalmieri 0:a77f1f1f8318 75 void scan_utc (char* utc_str, UTC_Info* utc) {
apalmieri 0:a77f1f1f8318 76
apalmieri 0:a77f1f1f8318 77 sscanf(utc_str, "%d", &utc->utc);
apalmieri 0:a77f1f1f8318 78
apalmieri 0:a77f1f1f8318 79 utc->hh = (utc->utc / 10000);
apalmieri 0:a77f1f1f8318 80 utc->mm = (utc->utc - (utc->hh * 10000)) / 100;
apalmieri 0:a77f1f1f8318 81 utc->ss = utc->utc - ((utc->hh * 10000) + (utc->mm * 100));
apalmieri 0:a77f1f1f8318 82
apalmieri 0:a77f1f1f8318 83 return;
apalmieri 0:a77f1f1f8318 84 }
apalmieri 0:a77f1f1f8318 85
apalmieri 0:a77f1f1f8318 86 /**
apalmieri 0:a77f1f1f8318 87 * @brief Scans a bidimensional array with longitude and latitude infos and
apalmieri 0:a77f1f1f8318 88 * fills the relative fields of a Coords struct
apalmieri 0:a77f1f1f8318 89 * @param xy_str NMEA string with latitude and longitude infos
apalmieri 0:a77f1f1f8318 90 * @param str_offset NMEA string with latitude and longitude infos
apalmieri 0:a77f1f1f8318 91 * @param utc The Coords struct to fill
apalmieri 0:a77f1f1f8318 92 * @retval None
apalmieri 0:a77f1f1f8318 93 */
apalmieri 0:a77f1f1f8318 94 void scan_xy (char* xy_str, uint8_t str_offset, Coords* xy)
apalmieri 0:a77f1f1f8318 95 {
apalmieri 0:a77f1f1f8318 96 //printf("NMEA (xy_str): %s\n\r", xy_str);
apalmieri 0:a77f1f1f8318 97 sscanf(xy_str, "%lf", &xy->lat);
apalmieri 0:a77f1f1f8318 98 sscanf(xy_str+str_offset, "%c", &xy->ns);
apalmieri 0:a77f1f1f8318 99 sscanf(xy_str+(2*str_offset), "%lf", &xy->lon);
apalmieri 0:a77f1f1f8318 100 sscanf(xy_str+(3*str_offset), "%c", &xy->ew);
apalmieri 0:a77f1f1f8318 101
apalmieri 0:a77f1f1f8318 102 return;
apalmieri 0:a77f1f1f8318 103 }
apalmieri 0:a77f1f1f8318 104
apalmieri 0:a77f1f1f8318 105 /**
apalmieri 0:a77f1f1f8318 106 * @}
apalmieri 0:a77f1f1f8318 107 */
apalmieri 0:a77f1f1f8318 108
apalmieri 0:a77f1f1f8318 109 /**
apalmieri 0:a77f1f1f8318 110 * @}
apalmieri 0:a77f1f1f8318 111 */
apalmieri 0:a77f1f1f8318 112
apalmieri 0:a77f1f1f8318 113 /**
apalmieri 0:a77f1f1f8318 114 * @}
apalmieri 0:a77f1f1f8318 115 */
apalmieri 0:a77f1f1f8318 116
apalmieri 0:a77f1f1f8318 117 /**
apalmieri 0:a77f1f1f8318 118 * @}
apalmieri 0:a77f1f1f8318 119 */
apalmieri 0:a77f1f1f8318 120
apalmieri 0:a77f1f1f8318 121 /**
apalmieri 0:a77f1f1f8318 122 * @}
apalmieri 0:a77f1f1f8318 123 */