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- /*
- * =====================================================================================
- *
- * Filename: nmeardr.h
- *
- * Description: Nmea reader's head file
- *
- * Version: 1.0
- * Created: 2018/8/15 16:55:45
- * Revision: none
- * Compiler: gcc
- *
- * Author: Jarod Lee
- * Organization:
- *
- * =====================================================================================
- */
- #ifndef __NMEA_READER_H
- #define __NMEA_READER_H
- #define MAX_NMEARDR_SIZE 1024
- /*
- * Nmea reader structure
- * Read one NMEA sentence
- * Always keep '$' as first byte and '\n' as last byte
- */
- struct nmea_reader {
- char buf[MAX_NMEARDR_SIZE]; // nmea sentence buffer
- int pos; // index of first free byte
- };
- void nmea_reader_init(struct nmea_reader *r); // init nmea reader to 0
- void nmea_reader_add(struct nmea_reader *r, char c); // add 1 byte c to nmea reader
- bool nmea_reader_check(struct nmea_reader *r); // check nmea checksum of nmea reader
- #endif
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