2020-05-16 13:35:26 +00:00
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/*
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* mXX m18/m20 (test)
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*
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* (cf. mXX_20180919.c)
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* sync header: correlation/matched filter
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* files: mXXmod.c demod_mod.h demod_mod.c
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* compile:
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* gcc -c demod_mod.c
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* gcc mXXmod.c demod_mod.o -lm -o mXXmod
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*
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* 2018-09-19 Ury: (len=0x43) ./mXX -c -vv --br 9600 mXX_20180919.wav
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* 2019-11-06 Ury: (len=0x45) ./mXX -c -vv --br 9600 mXX_20191106.wav
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* 2020-02-14 Ury: (len=0x45) ./mXX -c -vv --br 9600 mXX_20200214.wav
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* 2020-05-11 Wien: (len=0x45) ./mXX -c -vv --br 9603 mXX_20200511.wav
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*
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* author: zilog80
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#ifdef CYGWIN
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#include <fcntl.h> // cygwin: _setmode()
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#include <io.h>
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#endif
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#include "demod_mod.h"
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typedef struct {
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i8_t vbs; // verbose output
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i8_t raw; // raw frames
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i8_t crc; // CRC check output
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i8_t ecc; // Reed-Solomon ECC
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i8_t sat; // GPS sat data
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i8_t ptu; // PTU: temperature
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i8_t inv;
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i8_t aut;
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i8_t col; // colors
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i8_t jsn; // JSON output (auto_rx)
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2021-01-01 10:06:29 +00:00
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i8_t slt; // silent (only raw/json)
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2020-05-16 13:35:26 +00:00
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} option_t;
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// ? 9600 baud M20 <-> 9616 baud M10 ?
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#define BAUD_RATE 9600 // 9600..9604 // 9614..9616
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/* -------------------------------------------------------------------------- */
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/*
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Header = Sync-Header + Sonde-Header:
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1100110011001100 1010011001001100 1101010011010011 0100110101010101 0011010011001100
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uudduudduudduudd ududduuddudduudd uudududduududduu dudduudududududu dduududduudduudd (oder:)
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dduudduudduudduu duduudduuduudduu ddududuudduduudd uduuddududududud uudduduudduudduu (komplement)
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0 0 0 0 0 0 0 0 1 1 - - - 0 0 0 0 1 1 0 0 1 0 0 1 0 0 1 1 1 1 1 0 0 1 0 0 0 0 0
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*/
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#define BITS 8
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#define HEADLEN 32 // HEADLEN+HEADOFS=32 <= strlen(header)
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#define HEADOFS 0
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// Sync-Header (raw) // Sonde-Header (bits)
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//char head[] = "11001100110011001010011001001100"; //"0110010010011111"; // M10: 64 9F , M2K2: 64 8F
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//"0111011010011111"; // M10: 76 9F , w/ aux-data
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//"0110010001001001"; // M10-dop: 64 49 09
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//"0110010010101111"; // M10+: 64 AF w/ gtop-GPS
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static char rawheader[] = "10011001100110010100110010011001";
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#define FRAME_LEN (100+1) // 0x64+1
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#define BITFRAME_LEN (FRAME_LEN*BITS)
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#define AUX_LEN 20
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#define BITAUX_LEN (AUX_LEN*BITS)
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2020-06-26 22:17:05 +00:00
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#define t_M2K2 0x8F
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#define t_M10 0x9F
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#define t_M10plus 0xAF
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#define t_M20 0x20
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2020-05-16 13:35:26 +00:00
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typedef struct {
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int week; int tow_ms; int gpssec;
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int jahr; int monat; int tag;
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int wday;
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int std; int min; float sek;
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double lat; double lon; double alt;
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double vH; double vD; double vV;
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double vx; double vy; double vD2;
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ui8_t numSV;
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ui8_t utc_ofs;
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char SN[12];
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2020-06-26 22:17:05 +00:00
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ui8_t SNraw[3];
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2020-05-16 13:35:26 +00:00
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ui8_t frame_bytes[FRAME_LEN+AUX_LEN+4];
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char frame_bits[BITFRAME_LEN+BITAUX_LEN+8];
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2020-06-26 22:17:05 +00:00
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int auxlen; // ? 0 .. 0x57-0x45
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2020-11-01 16:34:58 +00:00
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int jsn_freq; // freq/kHz (SDR)
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2020-05-16 13:35:26 +00:00
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option_t option;
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2020-06-26 22:17:05 +00:00
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ui8_t type;
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2020-05-16 13:35:26 +00:00
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} gpx_t;
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/* -------------------------------------------------------------------------- */
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#define SECONDS_IN_WEEK (604800.0) // 7*86400
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/*
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* Convert GPS Week and Seconds to Modified Julian Day.
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* - Adapted from sci.astro FAQ.
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* - Ignores UTC leap seconds.
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*/
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static void Gps2Date(long GpsWeek, long GpsSeconds, int *Year, int *Month, int *Day) {
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long GpsDays, Mjd;
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long J, C, Y, M;
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GpsDays = GpsWeek * 7 + (GpsSeconds / 86400);
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Mjd = 44244 + GpsDays;
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J = Mjd + 2468570;
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C = 4 * J / 146097;
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J = J - (146097 * C + 3) / 4;
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Y = 4000 * (J + 1) / 1461001;
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J = J - 1461 * Y / 4 + 31;
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M = 80 * J / 2447;
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*Day = J - 2447 * M / 80;
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J = M / 11;
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*Month = M + 2 - (12 * J);
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*Year = 100 * (C - 49) + Y + J;
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}
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/* -------------------------------------------------------------------------- */
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static int bits2bytes(char *bitstr, ui8_t *bytes) {
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int i, bit, d, byteval;
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int bitpos, bytepos;
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bitpos = 0;
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bytepos = 0;
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while (bytepos < FRAME_LEN+AUX_LEN) {
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byteval = 0;
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d = 1;
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for (i = 0; i < BITS; i++) {
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//bit=*(bitstr+bitpos+i); /* little endian */
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bit=*(bitstr+bitpos+7-i); /* big endian */
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// bit == 'x' ?
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if (bit == '1') byteval += d;
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else /*if ((bit == '0') || (bit == 'x'))*/ byteval += 0;
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d <<= 1;
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}
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bitpos += BITS;
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bytes[bytepos++] = byteval & 0xFF;
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}
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//while (bytepos < FRAME_LEN+AUX_LEN) bytes[bytepos++] = 0;
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return 0;
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}
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/* -------------------------------------------------------------------------- */
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2020-05-17 14:27:10 +00:00
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/*
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M20
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GPS data: Big Endian
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PTU/ADC data: little endian
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frame[0x0] = framelen // (0x43,) 0x45
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frame[0x1] = 0x20 (type M20)
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frame[0x02..0x18]: most important data at beginning (incl. counter + M10check)
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frame[0x02..0x03]: ADC
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frame[0x04..0x05]: ADC
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frame[0x06..0x07]: ADC temperature
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frame[0x08..0x0A]: GPS altitude
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frame[0x0B..0x0E]: GPS hor.Vel. (velE,velN)
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frame[0x0F..0x11]: GPS TOW
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frame[0x15]: counter
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frame[0x16..0x17]: block check
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frame[0x18..0x19]: GPS ver.Vel. (velU)
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frame[0x1A..0x1B]: GPS week
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frame[0x1C..0x1F]: GPS latitude
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frame[0x20..0x23]: GPS longitude
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frame[0x44..0x45]: frame check
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*/
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2020-06-26 22:17:05 +00:00
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#define stdFLEN 0x45 // pos[0]=0x45 // M20: 0x45 (0x43) M10: 0x64
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2020-05-17 14:27:10 +00:00
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#define pos_GPSTOW 0x0F // 3 byte
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2020-05-16 13:35:26 +00:00
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#define pos_GPSlat 0x1C // 4 byte
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#define pos_GPSlon 0x20 // 4 byte
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2020-05-17 14:27:10 +00:00
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#define pos_GPSalt 0x08 // 3 byte
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//#define pos_GPSsats 0xXX // 1 byte
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//#define pos_GPSutc 0xXX // 1 byte
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2020-05-16 13:35:26 +00:00
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#define pos_GPSweek 0x1A // 2 byte
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//Velocity East-North-Up (ENU)
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#define pos_GPSvE 0x0B // 2 byte
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#define pos_GPSvN 0x0D // 2 byte
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#define pos_GPSvU 0x18 // 2 byte
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2020-06-06 13:02:54 +00:00
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#define pos_SN 0x12 // 3 byte
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#define pos_CNT 0x15 // 1 byte
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2020-05-17 14:27:10 +00:00
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#define pos_BlkChk 0x16 // 2 byte
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2020-05-16 13:35:26 +00:00
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#define pos_Check (stdFLEN-1) // 2 byte
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2020-05-17 17:10:31 +00:00
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#define len_BlkChk 0x16 // frame[0x02..0x17] , incl. chk16
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2020-05-16 13:35:26 +00:00
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#define ANSI_COLOR_RED "\x1b[31m"
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#define ANSI_COLOR_GREEN "\x1b[32m"
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#define ANSI_COLOR_YELLOW "\x1b[33m"
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#define ANSI_COLOR_BLUE "\x1b[34m"
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#define ANSI_COLOR_MAGENTA "\x1b[35m"
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#define ANSI_COLOR_CYAN "\x1b[36m"
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#define ANSI_COLOR_RESET "\x1b[0m"
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#define XTERM_COLOR_BROWN "\x1b[38;5;94m" // 38;5;{0..255}m
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2020-06-06 13:02:54 +00:00
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#define col_Mtype "\x1b[38;5;250m" // 1 byte
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2020-05-16 13:35:26 +00:00
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#define col_GPSweek "\x1b[38;5;20m" // 2 byte
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2020-05-17 14:27:10 +00:00
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#define col_GPSTOW "\x1b[38;5;27m" // 3 byte
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2020-05-16 13:35:26 +00:00
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#define col_GPSdate "\x1b[38;5;94m" //111
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#define col_GPSlat "\x1b[38;5;34m" // 4 byte
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#define col_GPSlon "\x1b[38;5;70m" // 4 byte
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2020-05-17 14:27:10 +00:00
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#define col_GPSalt "\x1b[38;5;82m" // 3 byte
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2020-05-16 13:35:26 +00:00
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#define col_GPSvel "\x1b[38;5;36m" // 6 byte
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#define col_SN "\x1b[38;5;58m" // 3 byte
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2020-06-06 13:02:54 +00:00
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#define col_CNT "\x1b[38;5;172m" // 1 byte
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2020-05-16 13:35:26 +00:00
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#define col_Check "\x1b[38;5;11m" // 2 byte
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#define col_TXT "\x1b[38;5;244m"
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#define col_FRTXT "\x1b[38;5;244m"
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#define col_CSok "\x1b[38;5;2m"
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#define col_CSno "\x1b[38;5;1m"
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#define col_CNST "\x1b[38;5;58m" // 3 byte
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/*
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$ for code in {0..255}
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> do echo -e "\e[38;5;${code}m"'\\e[38;5;'"$code"m"\e[0m"
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> done
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*/
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static int get_GPSweek(gpx_t *gpx) {
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int i;
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unsigned byte;
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ui8_t gpsweek_bytes[2];
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int gpsweek;
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//gpx->numSV = gpx->frame_bytes[pos_GPSsats];
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//gpx->utc_ofs = gpx->frame_bytes[pos_GPSutc];
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for (i = 0; i < 2; i++) {
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byte = gpx->frame_bytes[pos_GPSweek + i];
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gpsweek_bytes[i] = byte;
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}
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gpsweek = (gpsweek_bytes[0] << 8) + gpsweek_bytes[1];
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if (gpsweek > 4000) return -1;
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// Trimble Copernicus II WNRO (AirPrime XM1110 OK)
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if (gpsweek < 1304 /*2005-01-02*/ ) gpsweek += 1024;
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gpx->week = gpsweek;
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return 0;
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}
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//char weekday[7][3] = { "So", "Mo", "Di", "Mi", "Do", "Fr", "Sa"};
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static char weekday[7][4] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
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static int get_GPStime(gpx_t *gpx) {
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int i;
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unsigned byte;
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ui8_t gpstime_bytes[4];
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int gpstime, day;
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int ms;
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for (i = 0; i < 3; i++) {
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byte = gpx->frame_bytes[pos_GPSTOW + i];
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gpstime_bytes[i] = byte;
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}
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gpstime = 0;
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for (i = 0; i < 3; i++) {
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gpstime |= gpstime_bytes[i] << (8*(2-i));
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}
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gpx->tow_ms = gpstime*1000;
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ms = 0;//gpstime % 1000;
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//gpstime /= 1000;
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gpx->gpssec = gpstime;
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day = gpstime / (24 * 3600);
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if ((day < 0) || (day > 6)) return -1;
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gpstime %= (24*3600);
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gpx->wday = day;
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gpx->std = gpstime/3600;
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gpx->min = (gpstime%3600)/60;
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gpx->sek = gpstime%60 + ms/1000.0;
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return 0;
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}
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//static double B60B60 = (1<<30)/90.0; // 2^32/360 = 2^30/90 = 0xB60B60.711x // M10
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static double B60B60 = 1e6; // M20
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static int get_GPSlat(gpx_t *gpx) {
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int i;
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unsigned byte;
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ui8_t gpslat_bytes[4];
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int gpslat;
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double lat;
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for (i = 0; i < 4; i++) {
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byte = gpx->frame_bytes[pos_GPSlat + i];
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gpslat_bytes[i] = byte;
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}
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gpslat = 0;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
|
|
gpslat |= gpslat_bytes[i] << (8*(3-i));
|
|
|
|
}
|
|
|
|
lat = gpslat / B60B60;
|
|
|
|
gpx->lat = lat;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_GPSlon(gpx_t *gpx) {
|
|
|
|
int i;
|
|
|
|
unsigned byte;
|
|
|
|
ui8_t gpslon_bytes[4];
|
|
|
|
int gpslon;
|
|
|
|
double lon;
|
|
|
|
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
|
|
byte = gpx->frame_bytes[pos_GPSlon + i];
|
|
|
|
gpslon_bytes[i] = byte;
|
|
|
|
}
|
|
|
|
|
|
|
|
gpslon = 0;
|
|
|
|
for (i = 0; i < 4; i++) {
|
|
|
|
gpslon |= gpslon_bytes[i] << (8*(3-i));
|
|
|
|
}
|
|
|
|
lon = gpslon / B60B60;
|
|
|
|
gpx->lon = lon;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_GPSalt(gpx_t *gpx) { // 24 bit
|
|
|
|
int i;
|
|
|
|
unsigned byte;
|
|
|
|
ui8_t gpsalt_bytes[4];
|
|
|
|
int gpsalt;
|
|
|
|
double alt;
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
byte = gpx->frame_bytes[pos_GPSalt + i];
|
|
|
|
gpsalt_bytes[i] = byte;
|
|
|
|
}
|
|
|
|
|
|
|
|
gpsalt = 0;
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
gpsalt |= gpsalt_bytes[i] << (8*(2-i));
|
|
|
|
}
|
|
|
|
alt = gpsalt / 100.0;
|
|
|
|
gpx->alt = alt;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int get_GPSvel(gpx_t *gpx) {
|
|
|
|
int i;
|
|
|
|
unsigned byte;
|
|
|
|
ui8_t gpsVel_bytes[2];
|
|
|
|
short vel16;
|
|
|
|
double vx, vy, dir, alpha;
|
|
|
|
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
|
|
byte = gpx->frame_bytes[pos_GPSvE + i];
|
|
|
|
gpsVel_bytes[i] = byte;
|
|
|
|
}
|
|
|
|
vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
|
2020-06-26 22:17:05 +00:00
|
|
|
vx = vel16 / 1e2; // ost
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
|
|
byte = gpx->frame_bytes[pos_GPSvN + i];
|
|
|
|
gpsVel_bytes[i] = byte;
|
|
|
|
}
|
|
|
|
vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
|
2020-06-26 22:17:05 +00:00
|
|
|
vy= vel16 / 1e2; // nord
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
gpx->vx = vx;
|
|
|
|
gpx->vy = vy;
|
|
|
|
gpx->vH = sqrt(vx*vx+vy*vy);
|
|
|
|
///*
|
|
|
|
alpha = atan2(vy, vx)*180/M_PI; // ComplexPlane (von x-Achse nach links) - GeoMeteo (von y-Achse nach rechts)
|
|
|
|
dir = 90-alpha; // z=x+iy= -> i*conj(z)=y+ix=re(i(pi/2-t)), Achsen und Drehsinn vertauscht
|
|
|
|
if (dir < 0) dir += 360; // atan2(y,x)=atan(y/x)=pi/2-atan(x/y) , atan(1/t) = pi/2 - atan(t)
|
|
|
|
gpx->vD2 = dir;
|
|
|
|
//*/
|
|
|
|
dir = atan2(vx, vy) * 180 / M_PI;
|
|
|
|
if (dir < 0) dir += 360;
|
|
|
|
gpx->vD = dir;
|
|
|
|
|
|
|
|
for (i = 0; i < 2; i++) {
|
|
|
|
byte = gpx->frame_bytes[pos_GPSvU + i];
|
|
|
|
gpsVel_bytes[i] = byte;
|
|
|
|
}
|
|
|
|
vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
|
2020-06-26 22:17:05 +00:00
|
|
|
gpx->vV = vel16 / 1e2;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
static int get_SN(gpx_t *gpx) {
|
|
|
|
int i;
|
|
|
|
ui8_t b0 = gpx->frame_bytes[pos_SN]; //0x12
|
|
|
|
ui32_t s2 = (gpx->frame_bytes[pos_SN+2]<<8) | gpx->frame_bytes[pos_SN+1];
|
|
|
|
ui8_t ym = b0 & 0x7F; // #{0x0,..,0x77}=120=10*12
|
|
|
|
ui8_t y = ym / 12;
|
|
|
|
ui8_t m = (ym % 12)+1; // there is b0=0x69<0x80 from 2018-09-19 ...
|
|
|
|
|
|
|
|
for (i = 0; i < 11; i++) gpx->SN[i] = ' '; gpx->SN[11] = '\0';
|
|
|
|
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
|
|
gpx->SNraw[i] = gpx->frame_bytes[pos_SN + i];
|
|
|
|
}
|
|
|
|
|
|
|
|
sprintf(gpx->SN, "%u%02u", y, m); // more samples needed
|
|
|
|
sprintf(gpx->SN+3, " %u ", (s2&0x3)+2); // (b0>>7)+1? (s2&0x3)+2?
|
|
|
|
sprintf(gpx->SN+6, "%u", (s2>>(2+13))&0x1); // ?(s2>>(2+13))&0x1 ?? (s2&0x3)?
|
|
|
|
sprintf(gpx->SN+7, "%04u", (s2>>2)&0x1FFF);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
/*
|
|
|
|
g : F^n -> F^16 // checksum, linear
|
|
|
|
g(m||b) = f(g(m),b)
|
|
|
|
|
|
|
|
// update checksum
|
|
|
|
f : F^16 x F^8 -> F^16 linear
|
|
|
|
|
|
|
|
010100001000000101000000
|
|
|
|
001010000100000010100000
|
|
|
|
000101000010000001010000
|
|
|
|
000010100001000000101000
|
|
|
|
000001010000100000010100
|
|
|
|
100000100000010000001010
|
|
|
|
000000011010100000000100
|
|
|
|
100000000101010000000010
|
|
|
|
000000001000000000000000
|
|
|
|
000000000100000000000000
|
|
|
|
000000000010000000000000
|
|
|
|
000000000001000000000000
|
|
|
|
000000000000100000000000
|
|
|
|
000000000000010000000000
|
|
|
|
000000000000001000000000
|
|
|
|
000000000000000100000000
|
|
|
|
*/
|
|
|
|
|
|
|
|
static int update_checkM10(int c, ui8_t b) {
|
|
|
|
int c0, c1, t, t6, t7, s;
|
|
|
|
|
|
|
|
c1 = c & 0xFF;
|
|
|
|
|
|
|
|
// B
|
|
|
|
b = (b >> 1) | ((b & 1) << 7);
|
|
|
|
b ^= (b >> 2) & 0xFF;
|
|
|
|
|
|
|
|
// A1
|
|
|
|
t6 = ( c & 1) ^ ((c>>2) & 1) ^ ((c>>4) & 1);
|
|
|
|
t7 = ((c>>1) & 1) ^ ((c>>3) & 1) ^ ((c>>5) & 1);
|
|
|
|
t = (c & 0x3F) | (t6 << 6) | (t7 << 7);
|
|
|
|
|
|
|
|
// A2
|
|
|
|
s = (c >> 7) & 0xFF;
|
|
|
|
s ^= (s >> 2) & 0xFF;
|
|
|
|
|
|
|
|
|
|
|
|
c0 = b ^ t ^ s;
|
|
|
|
|
|
|
|
return ((c1<<8) | c0) & 0xFFFF;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int checkM10(ui8_t *msg, int len) {
|
2020-05-17 17:10:31 +00:00
|
|
|
int i, cs; // msg[0] = len+1
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
cs = 0;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
|
|
cs = update_checkM10(cs, msg[i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
return cs & 0xFFFF;
|
|
|
|
}
|
2020-05-17 17:10:31 +00:00
|
|
|
// checkM10(frame, frame[0]-1) = blk_checkM10(frame[0], frame+1)
|
|
|
|
static int blk_checkM10(int len, ui8_t *msg) {
|
2020-05-17 14:27:10 +00:00
|
|
|
int i, cs;
|
2020-05-17 17:10:31 +00:00
|
|
|
ui8_t pre = len & 0xFF; // len(block+chk16)
|
2020-05-17 14:27:10 +00:00
|
|
|
cs = 0;
|
|
|
|
|
|
|
|
cs = update_checkM10(cs, pre);
|
|
|
|
|
2020-05-17 17:10:31 +00:00
|
|
|
for (i = 0; i < len-2; i++) {
|
2020-05-17 14:27:10 +00:00
|
|
|
cs = update_checkM10(cs, msg[i]);
|
|
|
|
}
|
|
|
|
|
|
|
|
return cs & 0xFFFF;
|
|
|
|
}
|
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
|
|
|
|
static float get_Tntc0(gpx_t *gpx) {
|
|
|
|
// SMD ntc
|
|
|
|
float Rs = 22.1e3; // P5.6=Vcc
|
|
|
|
float R25 = 2.2e3;// 0.119e3; //2.2e3;
|
|
|
|
float b = 3650.0; // B/Kelvin
|
|
|
|
float T25 = 25.0 + 273.15; // T0=25C, R0=R25=5k
|
|
|
|
// -> Steinhart–Hart coefficients (polyfit):
|
|
|
|
float p0 = 4.42606809e-03,
|
|
|
|
p1 = -6.58184309e-04,
|
|
|
|
p2 = 8.95735557e-05,
|
|
|
|
p3 = -2.84347503e-06;
|
|
|
|
float T = 0.0; // T/Kelvin
|
|
|
|
ui16_t ADC_ntc0; // M10: ADC12 P6.4(A4)
|
|
|
|
float x, R;
|
|
|
|
|
|
|
|
ADC_ntc0 = (gpx->frame_bytes[0x07] << 8) | gpx->frame_bytes[0x06]; // M10: 0x40,0x3F
|
|
|
|
x = (4095.0 - ADC_ntc0)/ADC_ntc0; // (Vcc-Vout)/Vout
|
|
|
|
R = Rs / x;
|
|
|
|
if (R > 0) T = 1/(1/T25 + 1/b * log(R/R25));
|
|
|
|
//if (R > 0) T = 1/( p0 + p1*log(R) + p2*log(R)*log(R) + p3*log(R)*log(R)*log(R) );
|
|
|
|
|
|
|
|
return T - 273.15;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
|
2020-05-17 14:27:10 +00:00
|
|
|
static int print_pos(gpx_t *gpx, int bcOK, int csOK) {
|
2020-05-16 13:35:26 +00:00
|
|
|
int err, err2;
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
if (1 || gpx->type == t_M20)
|
|
|
|
{
|
|
|
|
err = 0;
|
|
|
|
err |= get_GPSweek(gpx);
|
|
|
|
err |= get_GPStime(gpx);
|
|
|
|
err |= get_GPSlat(gpx);
|
|
|
|
err |= get_GPSlon(gpx);
|
|
|
|
err |= get_GPSalt(gpx);
|
|
|
|
err2 = get_GPSvel(gpx);
|
|
|
|
}
|
|
|
|
else err = 0xFF;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
if (!err) {
|
|
|
|
|
|
|
|
Gps2Date(gpx->week, gpx->gpssec, &gpx->jahr, &gpx->monat, &gpx->tag);
|
2020-06-26 22:17:05 +00:00
|
|
|
get_SN(gpx);
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2021-01-01 10:06:29 +00:00
|
|
|
|
|
|
|
if ( !gpx->option.slt )
|
|
|
|
{
|
|
|
|
if (gpx->option.col) {
|
|
|
|
fprintf(stdout, col_TXT);
|
2020-05-16 13:35:26 +00:00
|
|
|
if (gpx->option.vbs >= 3) {
|
2021-01-01 10:06:29 +00:00
|
|
|
fprintf(stdout, "[%3d]", gpx->frame_bytes[pos_CNT]);
|
|
|
|
fprintf(stdout, " (W "col_GPSweek"%d"col_TXT") ", gpx->week);
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2021-01-01 10:06:29 +00:00
|
|
|
fprintf(stdout, col_GPSTOW"%s"col_TXT" ", weekday[gpx->wday]);
|
|
|
|
fprintf(stdout, col_GPSdate"%04d-%02d-%02d"col_TXT" "col_GPSTOW"%02d:%02d:%06.3f"col_TXT" ",
|
|
|
|
gpx->jahr, gpx->monat, gpx->tag, gpx->std, gpx->min, gpx->sek);
|
|
|
|
fprintf(stdout, " lat: "col_GPSlat"%.5f"col_TXT" ", gpx->lat);
|
|
|
|
fprintf(stdout, " lon: "col_GPSlon"%.5f"col_TXT" ", gpx->lon);
|
|
|
|
fprintf(stdout, " alt: "col_GPSalt"%.2f"col_TXT" ", gpx->alt);
|
|
|
|
if (!err2) {
|
|
|
|
fprintf(stdout, " vH: "col_GPSvel"%.1f"col_TXT" D: "col_GPSvel"%.1f"col_TXT" vV: "col_GPSvel"%.1f"col_TXT" ", gpx->vH, gpx->vD, gpx->vV);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs >= 2 && (bcOK || csOK)) { // SN
|
|
|
|
fprintf(stdout, " SN: "col_SN"%s"col_TXT, gpx->SN);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs >= 2) {
|
|
|
|
fprintf(stdout, " # ");
|
|
|
|
if (bcOK) fprintf(stdout, " "col_CSok"(ok)"col_TXT);
|
|
|
|
else fprintf(stdout, " "col_CSno"(no)"col_TXT);
|
|
|
|
if (csOK) fprintf(stdout, " "col_CSok"[OK]"col_TXT);
|
|
|
|
else fprintf(stdout, " "col_CSno"[NO]"col_TXT);
|
|
|
|
}
|
|
|
|
if (gpx->option.ptu && csOK) {
|
|
|
|
if (gpx->option.vbs >= 3) {
|
|
|
|
float t0 = get_Tntc0(gpx);
|
|
|
|
if (t0 > -270.0) fprintf(stdout, " (T0:%.1fC) ", t0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
fprintf(stdout, ANSI_COLOR_RESET"");
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2021-01-01 10:06:29 +00:00
|
|
|
else {
|
2020-05-16 13:35:26 +00:00
|
|
|
if (gpx->option.vbs >= 3) {
|
2021-01-01 10:06:29 +00:00
|
|
|
fprintf(stdout, "[%3d]", gpx->frame_bytes[pos_CNT]);
|
|
|
|
fprintf(stdout, " (W %d) ", gpx->week);
|
|
|
|
}
|
|
|
|
fprintf(stdout, "%s ", weekday[gpx->wday]);
|
|
|
|
fprintf(stdout, "%04d-%02d-%02d %02d:%02d:%06.3f ",
|
|
|
|
gpx->jahr, gpx->monat, gpx->tag, gpx->std, gpx->min, gpx->sek);
|
|
|
|
fprintf(stdout, " lat: %.5f ", gpx->lat);
|
|
|
|
fprintf(stdout, " lon: %.5f ", gpx->lon);
|
|
|
|
fprintf(stdout, " alt: %.2f ", gpx->alt);
|
|
|
|
if (!err2) {
|
|
|
|
fprintf(stdout, " vH: %.1f D: %.1f vV: %.1f ", gpx->vH, gpx->vD, gpx->vV);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs >= 2 && (bcOK || csOK)) { // SN
|
|
|
|
fprintf(stdout, " SN: %s", gpx->SN);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs >= 2) {
|
|
|
|
fprintf(stdout, " # ");
|
|
|
|
if (bcOK) fprintf(stdout, " (ok)"); else fprintf(stdout, " (no)");
|
|
|
|
if (csOK) fprintf(stdout, " [OK]"); else fprintf(stdout, " [NO]");
|
|
|
|
}
|
|
|
|
if (gpx->option.ptu && csOK) {
|
|
|
|
if (gpx->option.vbs >= 3) {
|
|
|
|
float t0 = get_Tntc0(gpx);
|
|
|
|
if (t0 > -270.0) fprintf(stdout, " (T0:%.1fC) ", t0);
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
|
|
|
}
|
2021-01-01 10:06:29 +00:00
|
|
|
fprintf(stdout, "\n");
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2021-01-01 10:06:29 +00:00
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
if (gpx->option.jsn) {
|
|
|
|
// Print out telemetry data as JSON
|
|
|
|
if (csOK) {
|
|
|
|
int j;
|
|
|
|
char sn_id[4+12] = "M20-";
|
|
|
|
double sec_gps0 = (double)gpx->week*SECONDS_IN_WEEK + gpx->tow_ms/1e3;
|
|
|
|
|
|
|
|
strncpy(sn_id+4, gpx->SN, 12);
|
|
|
|
sn_id[15] = '\0';
|
|
|
|
for (j = 0; sn_id[j]; j++) { if (sn_id[j] == ' ') sn_id[j] = '-'; }
|
|
|
|
|
|
|
|
fprintf(stdout, "{ \"type\": \"%s\"", "M20");
|
2020-12-16 21:18:48 +00:00
|
|
|
fprintf(stdout, ", \"frame\": %lu, ", (unsigned long)(sec_gps0+0.5));
|
2020-06-26 22:17:05 +00:00
|
|
|
fprintf(stdout, "\"id\": \"%s\", \"datetime\": \"%04d-%02d-%02dT%02d:%02d:%06.3fZ\", \"lat\": %.5f, \"lon\": %.5f, \"alt\": %.5f, \"vel_h\": %.5f, \"heading\": %.5f, \"vel_v\": %.5f",
|
|
|
|
sn_id, gpx->jahr, gpx->monat, gpx->tag, gpx->std, gpx->min, gpx->sek, gpx->lat, gpx->lon, gpx->alt, gpx->vH, gpx->vD, gpx->vV);
|
|
|
|
fprintf(stdout, ", \"rawid\": \"M20_%02X%02X%02X\"", gpx->frame_bytes[pos_SN], gpx->frame_bytes[pos_SN+1], gpx->frame_bytes[pos_SN+2]); // gpx->type
|
|
|
|
fprintf(stdout, ", \"subtype\": \"0x%02X\"", gpx->type);
|
2020-11-01 16:34:58 +00:00
|
|
|
if (gpx->jsn_freq > 0) {
|
|
|
|
fprintf(stdout, ", \"freq\": %d", gpx->jsn_freq);
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
fprintf(stdout, " }\n");
|
|
|
|
fprintf(stdout, "\n");
|
|
|
|
}
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
static int print_frame(gpx_t *gpx, int pos, int b2B) {
|
2020-05-16 13:35:26 +00:00
|
|
|
int i;
|
|
|
|
ui8_t byte;
|
|
|
|
int cs1, cs2;
|
2020-05-17 14:27:10 +00:00
|
|
|
int bc1, bc2;
|
2020-05-16 13:35:26 +00:00
|
|
|
int flen = stdFLEN; // stdFLEN=0x64, auxFLEN=0x76; M20:0x45 ?
|
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (b2B) {
|
|
|
|
bits2bytes(gpx->frame_bits, gpx->frame_bytes);
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
flen = gpx->frame_bytes[0];
|
|
|
|
if (flen == stdFLEN) gpx->auxlen = 0;
|
|
|
|
else {
|
|
|
|
gpx->auxlen = flen - stdFLEN;
|
2020-06-26 22:17:05 +00:00
|
|
|
//if (gpx->auxlen < 0 || gpx->auxlen > AUX_LEN) gpx->auxlen = 0; // 0x43,0x45
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
cs1 = (gpx->frame_bytes[pos_Check+gpx->auxlen] << 8) | gpx->frame_bytes[pos_Check+gpx->auxlen+1];
|
|
|
|
cs2 = checkM10(gpx->frame_bytes, pos_Check+gpx->auxlen);
|
|
|
|
|
2020-05-17 14:27:10 +00:00
|
|
|
bc1 = (gpx->frame_bytes[pos_BlkChk] << 8) | gpx->frame_bytes[pos_BlkChk+1];
|
2020-05-17 17:10:31 +00:00
|
|
|
bc2 = blk_checkM10(len_BlkChk, gpx->frame_bytes+2); // len(essentialBlock+chk16) = 0x16
|
2020-05-17 14:27:10 +00:00
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
switch (gpx->frame_bytes[1]) {
|
|
|
|
case 0x8F: gpx->type = t_M2K2; break;
|
|
|
|
case 0x9F: gpx->type = t_M10; break;
|
|
|
|
case 0xAF: gpx->type = t_M10plus; break;
|
|
|
|
case 0x20: gpx->type = t_M20; break;
|
|
|
|
default : gpx->type = t_M10;
|
|
|
|
}
|
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
if (gpx->option.raw) {
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
if (gpx->option.col /* && gpx->frame_bytes[1] != 0x49 */) {
|
2020-05-16 13:35:26 +00:00
|
|
|
fprintf(stdout, col_FRTXT);
|
2020-06-26 22:17:05 +00:00
|
|
|
for (i = 0; i < flen+1; i++) {
|
2020-05-16 13:35:26 +00:00
|
|
|
byte = gpx->frame_bytes[i];
|
2020-06-06 13:02:54 +00:00
|
|
|
if (i == 1) fprintf(stdout, col_Mtype);
|
2020-05-16 13:35:26 +00:00
|
|
|
if ((i >= pos_GPSTOW) && (i < pos_GPSTOW+3)) fprintf(stdout, col_GPSTOW);
|
|
|
|
if ((i >= pos_GPSlat) && (i < pos_GPSlat+4)) fprintf(stdout, col_GPSlat);
|
|
|
|
if ((i >= pos_GPSlon) && (i < pos_GPSlon+4)) fprintf(stdout, col_GPSlon);
|
2020-05-17 14:27:10 +00:00
|
|
|
if ((i >= pos_GPSalt) && (i < pos_GPSalt+3)) fprintf(stdout, col_GPSalt);
|
2020-05-16 13:35:26 +00:00
|
|
|
if ((i >= pos_GPSweek) && (i < pos_GPSweek+2)) fprintf(stdout, col_GPSweek);
|
|
|
|
if ((i >= pos_GPSvE) && (i < pos_GPSvE+2)) fprintf(stdout, col_GPSvel);
|
|
|
|
if ((i >= pos_GPSvN) && (i < pos_GPSvN+2)) fprintf(stdout, col_GPSvel);
|
|
|
|
if ((i >= pos_GPSvU) && (i < pos_GPSvU+2)) fprintf(stdout, col_GPSvel);
|
2020-06-06 13:02:54 +00:00
|
|
|
if ((i >= pos_SN) && (i < pos_SN+3)) fprintf(stdout, col_SN);
|
|
|
|
if (i == pos_CNT) fprintf(stdout, col_CNT);
|
2020-05-17 14:27:10 +00:00
|
|
|
if ((i >= pos_BlkChk) && (i < pos_BlkChk+2)) fprintf(stdout, col_Check);
|
2020-05-16 13:35:26 +00:00
|
|
|
if ((i >= pos_Check+gpx->auxlen) && (i < pos_Check+gpx->auxlen+2)) fprintf(stdout, col_Check);
|
|
|
|
fprintf(stdout, "%02x", byte);
|
|
|
|
fprintf(stdout, col_FRTXT);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs) {
|
|
|
|
fprintf(stdout, " # "col_Check"%04x"col_FRTXT, cs2);
|
2020-05-17 14:27:10 +00:00
|
|
|
if (bc1 == bc2) fprintf(stdout, " "col_CSok"(ok)"col_TXT);
|
|
|
|
else fprintf(stdout, " "col_CSno"(no)"col_TXT);
|
2020-05-16 13:35:26 +00:00
|
|
|
if (cs1 == cs2) fprintf(stdout, " "col_CSok"[OK]"col_TXT);
|
|
|
|
else fprintf(stdout, " "col_CSno"[NO]"col_TXT);
|
|
|
|
}
|
|
|
|
fprintf(stdout, ANSI_COLOR_RESET"\n");
|
|
|
|
}
|
|
|
|
else {
|
2020-06-26 22:17:05 +00:00
|
|
|
for (i = 0; i < flen+1; i++) {
|
2020-05-16 13:35:26 +00:00
|
|
|
byte = gpx->frame_bytes[i];
|
|
|
|
fprintf(stdout, "%02x", byte);
|
|
|
|
}
|
|
|
|
if (gpx->option.vbs) {
|
|
|
|
fprintf(stdout, " # %04x", cs2);
|
2020-05-17 14:27:10 +00:00
|
|
|
if (bc1 == bc2) fprintf(stdout, " (ok)"); else fprintf(stdout, " (no)");
|
2020-05-16 13:35:26 +00:00
|
|
|
if (cs1 == cs2) fprintf(stdout, " [OK]"); else fprintf(stdout, " [NO]");
|
|
|
|
}
|
|
|
|
fprintf(stdout, "\n");
|
|
|
|
}
|
2021-01-01 10:06:29 +00:00
|
|
|
if (gpx->option.slt /*&& gpx->option.jsn*/) {
|
|
|
|
print_pos(gpx, bc1 == bc2, cs1 == cs2);
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
/*
|
2020-05-16 13:35:26 +00:00
|
|
|
else if (gpx->frame_bytes[1] == 0x49) {
|
|
|
|
if (gpx->option.vbs == 3) {
|
|
|
|
for (i = 0; i < FRAME_LEN+gpx->auxlen; i++) {
|
|
|
|
byte = gpx->frame_bytes[i];
|
|
|
|
fprintf(stdout, "%02x", byte);
|
|
|
|
}
|
|
|
|
fprintf(stdout, "\n");
|
|
|
|
}
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
*/
|
2020-05-17 14:27:10 +00:00
|
|
|
else print_pos(gpx, bc1 == bc2, cs1 == cs2);
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
return (gpx->frame_bytes[0]<<8)|gpx->frame_bytes[1];
|
|
|
|
}
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
|
|
|
|
int option_verbose = 0; // ausfuehrliche Anzeige
|
|
|
|
int option_raw = 0; // rohe Frames
|
|
|
|
int option_inv = 0; // invertiert Signal
|
|
|
|
//int option_res = 0; // genauere Bitmessung
|
|
|
|
int option_color = 0;
|
|
|
|
int option_ptu = 0;
|
|
|
|
int option_min = 0;
|
|
|
|
int option_iq = 0;
|
2020-08-20 12:47:50 +00:00
|
|
|
int option_iqdc = 0;
|
2020-05-16 13:35:26 +00:00
|
|
|
int option_lp = 0;
|
|
|
|
int option_dc = 0;
|
2020-06-26 22:17:05 +00:00
|
|
|
int option_softin = 0;
|
2020-05-16 13:35:26 +00:00
|
|
|
int option_pcmraw = 0;
|
|
|
|
int wavloaded = 0;
|
|
|
|
int sel_wavch = 0; // audio channel: left
|
|
|
|
int spike = 0;
|
2020-12-31 15:30:21 +00:00
|
|
|
int rawhex = 0;
|
2020-11-01 16:34:58 +00:00
|
|
|
int cfreq = -1;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
float baudrate = -1;
|
|
|
|
|
|
|
|
FILE *fp = NULL;
|
|
|
|
char *fpname = NULL;
|
|
|
|
|
|
|
|
int k;
|
|
|
|
|
|
|
|
int bit, bit0;
|
|
|
|
int bitpos = 0;
|
|
|
|
int bitQ;
|
|
|
|
int pos;
|
2020-06-26 22:17:05 +00:00
|
|
|
hsbit_t hsbit, hsbit1;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
//int headerlen = 0;
|
|
|
|
|
|
|
|
int header_found = 0;
|
|
|
|
|
|
|
|
float thres = 0.76;
|
|
|
|
float _mv = 0.0;
|
|
|
|
|
|
|
|
int symlen = 2;
|
|
|
|
int bitofs = 0; // 0 .. +2
|
|
|
|
int shift = 0;
|
|
|
|
|
|
|
|
pcm_t pcm = {0};
|
|
|
|
dsp_t dsp = {0}; //memset(&dsp, 0, sizeof(dsp));
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
hdb_t hdb = {0};
|
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
gpx_t gpx = {0};
|
|
|
|
|
|
|
|
|
|
|
|
#ifdef CYGWIN
|
|
|
|
_setmode(fileno(stdin), _O_BINARY); // _setmode(_fileno(stdin), _O_BINARY);
|
|
|
|
#endif
|
|
|
|
setbuf(stdout, NULL);
|
|
|
|
|
|
|
|
|
|
|
|
fpname = argv[0];
|
|
|
|
++argv;
|
|
|
|
while ((*argv) && (!wavloaded)) {
|
|
|
|
if ( (strcmp(*argv, "-h") == 0) || (strcmp(*argv, "--help") == 0) ) {
|
|
|
|
fprintf(stderr, "%s [options] audio.wav\n", fpname);
|
|
|
|
fprintf(stderr, " options:\n");
|
|
|
|
//fprintf(stderr, " -v, --verbose\n");
|
|
|
|
fprintf(stderr, " -r, --raw\n");
|
|
|
|
fprintf(stderr, " -c, --color\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "-v") == 0) || (strcmp(*argv, "--verbose") == 0) ) {
|
|
|
|
option_verbose = 1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "-vv" ) == 0) ) option_verbose = 2;
|
|
|
|
else if ( (strcmp(*argv, "-vvv") == 0) ) option_verbose = 3;
|
|
|
|
else if ( (strcmp(*argv, "-r") == 0) || (strcmp(*argv, "--raw") == 0) ) {
|
|
|
|
option_raw = 1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "-i") == 0) || (strcmp(*argv, "--invert") == 0) ) {
|
|
|
|
option_inv = 1; // nicht noetig
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "-c") == 0) || (strcmp(*argv, "--color") == 0) ) {
|
|
|
|
option_color = 1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "--br") == 0) ) {
|
|
|
|
++argv;
|
|
|
|
if (*argv) {
|
|
|
|
baudrate = atof(*argv);
|
2020-06-26 22:17:05 +00:00
|
|
|
if (baudrate < 9000 || baudrate > 10000) baudrate = BAUD_RATE; // default: M20:9600, M10:9615
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
|
|
|
else return -1;
|
|
|
|
}
|
|
|
|
//else if (strcmp(*argv, "--res") == 0) { option_res = 1; }
|
|
|
|
else if ( (strcmp(*argv, "--ptu") == 0) ) {
|
|
|
|
option_ptu = 1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "--spike") == 0) ) {
|
|
|
|
spike = 1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "--ch2") == 0) ) { sel_wavch = 1; } // right channel (default: 0=left)
|
2020-06-26 22:17:05 +00:00
|
|
|
else if (strcmp(*argv, "--softin") == 0) { option_softin = 1; } // float32 soft input
|
2021-01-01 10:06:29 +00:00
|
|
|
else if (strcmp(*argv, "--silent") == 0) { gpx.option.slt = 1; }
|
2020-05-16 13:35:26 +00:00
|
|
|
else if ( (strcmp(*argv, "--ths") == 0) ) {
|
|
|
|
++argv;
|
|
|
|
if (*argv) {
|
|
|
|
thres = atof(*argv);
|
|
|
|
}
|
|
|
|
else return -1;
|
|
|
|
}
|
|
|
|
else if ( (strcmp(*argv, "-d") == 0) ) {
|
|
|
|
++argv;
|
|
|
|
if (*argv) {
|
|
|
|
shift = atoi(*argv);
|
|
|
|
if (shift > 4) shift = 4;
|
|
|
|
if (shift < -4) shift = -4;
|
|
|
|
}
|
|
|
|
else return -1;
|
|
|
|
}
|
|
|
|
else if (strcmp(*argv, "--iq0") == 0) { option_iq = 1; } // differential/FM-demod
|
|
|
|
else if (strcmp(*argv, "--iq2") == 0) { option_iq = 2; }
|
|
|
|
else if (strcmp(*argv, "--iq3") == 0) { option_iq = 3; } // iq2==iq3
|
2020-08-20 12:47:50 +00:00
|
|
|
else if (strcmp(*argv, "--iqdc") == 0) { option_iqdc = 1; } // iq-dc removal (iq0,2,3)
|
2020-05-16 13:35:26 +00:00
|
|
|
else if (strcmp(*argv, "--IQ") == 0) { // fq baseband -> IF (rotate from and decimate)
|
|
|
|
double fq = 0.0; // --IQ <fq> , -0.5 < fq < 0.5
|
|
|
|
++argv;
|
|
|
|
if (*argv) fq = atof(*argv);
|
|
|
|
else return -1;
|
|
|
|
if (fq < -0.5) fq = -0.5;
|
|
|
|
if (fq > 0.5) fq = 0.5;
|
|
|
|
dsp.xlt_fq = -fq; // S(t) -> S(t)*exp(-f*2pi*I*t)
|
|
|
|
option_iq = 5;
|
|
|
|
}
|
|
|
|
else if (strcmp(*argv, "--lp") == 0) { option_lp = 1; } // IQ lowpass
|
|
|
|
else if (strcmp(*argv, "--dc") == 0) { option_dc = 1; }
|
|
|
|
else if (strcmp(*argv, "--min") == 0) {
|
|
|
|
option_min = 1;
|
|
|
|
}
|
|
|
|
else if (strcmp(*argv, "--json") == 0) { gpx.option.jsn = 1; }
|
2020-11-01 16:34:58 +00:00
|
|
|
else if (strcmp(*argv, "--jsn_cfq") == 0) {
|
|
|
|
int frq = -1; // center frequency / Hz
|
|
|
|
++argv;
|
|
|
|
if (*argv) frq = atoi(*argv); else return -1;
|
|
|
|
if (frq < 300000000) frq = -1;
|
|
|
|
cfreq = frq;
|
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
else if (strcmp(*argv, "--rawhex") == 0) { rawhex = 2; } // raw hex input
|
2020-05-16 13:35:26 +00:00
|
|
|
else if (strcmp(*argv, "-") == 0) {
|
|
|
|
int sample_rate = 0, bits_sample = 0, channels = 0;
|
|
|
|
++argv;
|
|
|
|
if (*argv) sample_rate = atoi(*argv); else return -1;
|
|
|
|
++argv;
|
|
|
|
if (*argv) bits_sample = atoi(*argv); else return -1;
|
|
|
|
channels = 2;
|
|
|
|
if (sample_rate < 1 || (bits_sample != 8 && bits_sample != 16 && bits_sample != 32)) {
|
|
|
|
fprintf(stderr, "- <sr> <bs>\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
pcm.sr = sample_rate;
|
|
|
|
pcm.bps = bits_sample;
|
|
|
|
pcm.nch = channels;
|
|
|
|
option_pcmraw = 1;
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
fp = fopen(*argv, "rb");
|
|
|
|
if (fp == NULL) {
|
|
|
|
fprintf(stderr, "error: open %s\n", *argv);
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
wavloaded = 1;
|
|
|
|
}
|
|
|
|
++argv;
|
|
|
|
}
|
|
|
|
if (!wavloaded) fp = stdin;
|
|
|
|
|
|
|
|
|
2021-01-01 10:06:29 +00:00
|
|
|
if (gpx.option.raw && gpx.option.jsn) gpx.option.slt = 1;
|
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
// init gpx
|
2020-05-16 13:35:26 +00:00
|
|
|
gpx.option.inv = option_inv; // irrelevant
|
|
|
|
gpx.option.vbs = option_verbose;
|
|
|
|
gpx.option.raw = option_raw;
|
|
|
|
gpx.option.ptu = option_ptu;
|
|
|
|
gpx.option.col = option_color;
|
|
|
|
|
2020-11-01 16:34:58 +00:00
|
|
|
if (cfreq > 0) gpx.jsn_freq = (cfreq+500)/1000;
|
|
|
|
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-06-26 22:17:05 +00:00
|
|
|
#ifdef EXT_FSK
|
|
|
|
if (!option_softin) {
|
|
|
|
option_softin = 1;
|
|
|
|
fprintf(stderr, "reading float32 soft symbols\n");
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
#endif
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (!rawhex) {
|
|
|
|
if (!option_softin) {
|
2020-06-26 22:17:05 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (option_iq == 0 && option_pcmraw) {
|
2020-06-26 22:17:05 +00:00
|
|
|
fclose(fp);
|
2020-12-31 15:30:21 +00:00
|
|
|
fprintf(stderr, "error: raw data not IQ\n");
|
2020-06-26 22:17:05 +00:00
|
|
|
return -1;
|
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
if (option_iq) sel_wavch = 0;
|
|
|
|
|
|
|
|
pcm.sel_ch = sel_wavch;
|
|
|
|
if (option_pcmraw == 0) {
|
|
|
|
k = read_wav_header(&pcm, fp);
|
|
|
|
if ( k < 0 ) {
|
|
|
|
fclose(fp);
|
|
|
|
fprintf(stderr, "error: wav header\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
}
|
2020-11-01 16:34:58 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (cfreq > 0) {
|
|
|
|
int fq_kHz = (cfreq - dsp.xlt_fq*pcm.sr + 500)/1e3;
|
|
|
|
gpx.jsn_freq = fq_kHz;
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
// m10: BT>1?, h=1.2 ?
|
|
|
|
symlen = 2;
|
|
|
|
|
|
|
|
// init dsp
|
|
|
|
//
|
|
|
|
dsp.fp = fp;
|
|
|
|
dsp.sr = pcm.sr;
|
|
|
|
dsp.bps = pcm.bps;
|
|
|
|
dsp.nch = pcm.nch;
|
|
|
|
dsp.ch = pcm.sel_ch;
|
|
|
|
dsp.br = (float)BAUD_RATE;
|
2020-06-26 22:17:05 +00:00
|
|
|
dsp.sps = (float)dsp.sr/dsp.br;
|
2020-12-31 15:30:21 +00:00
|
|
|
dsp.symlen = symlen;
|
|
|
|
dsp.symhd = 1; // M10!header
|
|
|
|
dsp._spb = dsp.sps*symlen;
|
|
|
|
dsp.hdr = rawheader;
|
|
|
|
dsp.hdrlen = strlen(rawheader);
|
|
|
|
dsp.BT = 1.8; // bw/time (ISI) // 1.0..2.0 // M20 ?
|
|
|
|
dsp.h = 0.9; // 1.2 modulation index // M20 ?
|
|
|
|
dsp.opt_iq = option_iq;
|
|
|
|
dsp.opt_iqdc = option_iqdc;
|
|
|
|
dsp.opt_lp = option_lp;
|
|
|
|
dsp.lpIQ_bw = 24e3; // IF lowpass bandwidth
|
|
|
|
dsp.lpFM_bw = 10e3; // FM audio lowpass
|
|
|
|
dsp.opt_dc = option_dc;
|
|
|
|
dsp.opt_IFmin = option_min;
|
|
|
|
|
|
|
|
if ( dsp.sps < 8 ) {
|
|
|
|
fprintf(stderr, "note: sample rate low (%.1f sps)\n", dsp.sps);
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (baudrate > 0) {
|
|
|
|
dsp.br = (float)baudrate;
|
|
|
|
dsp.sps = (float)dsp.sr/dsp.br;
|
|
|
|
fprintf(stderr, "sps corr: %.4f\n", dsp.sps);
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
//headerlen = dsp.hdrlen;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
k = init_buffers(&dsp);
|
|
|
|
if ( k < 0 ) {
|
|
|
|
fprintf(stderr, "error: init buffers\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
bitofs += shift;
|
2020-06-26 22:17:05 +00:00
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
else {
|
|
|
|
// init circular header bit buffer
|
|
|
|
hdb.hdr = rawheader;
|
|
|
|
hdb.len = strlen(rawheader);
|
|
|
|
//hdb.thb = 1.0 - 3.1/(float)hdb.len; // 1.0-max_bit_errors/hdrlen
|
|
|
|
hdb.bufpos = -1;
|
|
|
|
hdb.buf = NULL;
|
|
|
|
/*
|
|
|
|
calloc(hdb.len, sizeof(char));
|
|
|
|
if (hdb.buf == NULL) {
|
|
|
|
fprintf(stderr, "error: malloc\n");
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
*/
|
|
|
|
hdb.ths = 0.8; // caution 0.7: false positive / offset
|
|
|
|
hdb.sbuf = calloc(hdb.len, sizeof(float));
|
|
|
|
if (hdb.sbuf == NULL) {
|
|
|
|
fprintf(stderr, "error: malloc\n");
|
|
|
|
return -1;
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
while ( 1 )
|
|
|
|
{
|
|
|
|
if (option_softin) {
|
|
|
|
header_found = find_softbinhead(fp, &hdb, &_mv);
|
|
|
|
}
|
|
|
|
else { // FM-audio:
|
|
|
|
header_found = find_header(&dsp, thres, 2, bitofs, dsp.opt_dc); // optional 2nd pass: dc=0
|
|
|
|
_mv = dsp.mv;
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (header_found == EOF) break;
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
// mv == correlation score
|
|
|
|
if (_mv*(0.5-gpx.option.inv) < 0) {
|
|
|
|
gpx.option.inv ^= 0x1; // M10: irrelevant
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (header_found) {
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
bitpos = 0;
|
|
|
|
pos = 0;
|
|
|
|
pos /= 2;
|
|
|
|
bit0 = '0'; // oder: _mv[j] > 0
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
while ( pos < BITFRAME_LEN+BITAUX_LEN ) {
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (option_softin) {
|
|
|
|
float s1 = 0.0;
|
|
|
|
float s2 = 0.0;
|
|
|
|
float s = 0.0;
|
|
|
|
bitQ = f32soft_read(fp, &s1);
|
2020-06-26 22:17:05 +00:00
|
|
|
if (bitQ != EOF) {
|
2020-12-31 15:30:21 +00:00
|
|
|
bitQ = f32soft_read(fp, &s2);
|
|
|
|
if (bitQ != EOF) {
|
|
|
|
s = s2-s1; // integrate both symbols // only 2nd Manchester symbol: s2
|
|
|
|
bit = (s>=0.0); // no soft decoding
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
}
|
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
else {
|
|
|
|
float bl = -1;
|
|
|
|
if (option_iq >= 2) spike = 0;
|
|
|
|
if (option_iq > 2) bl = 4.0;
|
|
|
|
//bitQ = read_slbit(&dsp, &bit, 0, bitofs, bitpos, bl, spike); // symlen=2
|
|
|
|
bitQ = read_softbit2p(&dsp, &hsbit, 0, bitofs, bitpos, bl, spike, &hsbit1); // symlen=2
|
|
|
|
bit = hsbit.hb;
|
|
|
|
}
|
|
|
|
if ( bitQ == EOF ) { break; }
|
|
|
|
|
|
|
|
gpx.frame_bits[pos] = 0x31 ^ (bit0 ^ bit);
|
|
|
|
pos++;
|
|
|
|
bit0 = bit;
|
|
|
|
bitpos += 1;
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
gpx.frame_bits[pos] = '\0';
|
|
|
|
print_frame(&gpx, pos, 1);
|
|
|
|
if (pos < BITFRAME_LEN) break;
|
|
|
|
|
|
|
|
header_found = 0;
|
|
|
|
|
|
|
|
// bis Ende der Sekunde vorspulen; allerdings Doppel-Frame alle 10 sek
|
|
|
|
if (gpx.option.vbs < 3) { // && (regulare frame) // print_frame-return?
|
|
|
|
while ( bitpos < 5*BITFRAME_LEN ) {
|
|
|
|
bitQ = read_slbit(&dsp, &bit, 0, bitofs, bitpos, -1, 0); // symlen=2
|
|
|
|
if ( bitQ == EOF) break;
|
|
|
|
bitpos++;
|
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
pos = 0;
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
2020-12-31 15:30:21 +00:00
|
|
|
if (!option_softin) free_buffers(&dsp);
|
|
|
|
else {
|
|
|
|
if (hdb.buf) { free(hdb.buf); hdb.buf = NULL; }
|
2020-05-16 13:35:26 +00:00
|
|
|
}
|
|
|
|
}
|
2020-12-31 15:30:21 +00:00
|
|
|
else //if (rawhex)
|
|
|
|
{
|
|
|
|
char buffer_rawhex[2*(FRAME_LEN+AUX_LEN)+12];
|
|
|
|
char *pbuf = NULL, *buf_sp = NULL;
|
|
|
|
ui8_t frmbyte;
|
|
|
|
int frameofs = 0, len, i;
|
|
|
|
|
|
|
|
while (1 > 0) {
|
|
|
|
|
|
|
|
memset(buffer_rawhex, 2*(FRAME_LEN+AUX_LEN)+12, 0);
|
|
|
|
pbuf = fgets(buffer_rawhex, 2*(FRAME_LEN+AUX_LEN)+12, fp);
|
|
|
|
if (pbuf == NULL) break;
|
|
|
|
buffer_rawhex[2*(FRAME_LEN+AUX_LEN)] = '\0';
|
|
|
|
buf_sp = strchr(buffer_rawhex, ' ');
|
|
|
|
if (buf_sp != NULL && buf_sp-buffer_rawhex < 2*(FRAME_LEN+AUX_LEN)) {
|
|
|
|
buffer_rawhex[buf_sp-buffer_rawhex] = '\0';
|
|
|
|
for (i = buf_sp-buffer_rawhex+1; i < 2*(FRAME_LEN+AUX_LEN); i++) buffer_rawhex[i] = '\0';
|
|
|
|
}
|
|
|
|
len = strlen(buffer_rawhex) / 2;
|
|
|
|
if (len > pos_GPSweek+2) {
|
|
|
|
for (i = 0; i < len; i++) { //%2x SCNx8=%hhx(inttypes.h)
|
|
|
|
sscanf(buffer_rawhex+2*i, "%2hhx", &frmbyte);
|
|
|
|
// wenn ohne %hhx: sscanf(buffer_rawhex+rawhex*i, "%2x", &byte); frame[frameofs+i] = (ui8_t)byte;
|
|
|
|
gpx.frame_bytes[frameofs+i] = frmbyte;
|
|
|
|
}
|
|
|
|
print_frame(&gpx, len*8, 0);
|
|
|
|
}
|
|
|
|
}
|
2020-06-26 22:17:05 +00:00
|
|
|
}
|
2020-05-16 13:35:26 +00:00
|
|
|
|
|
|
|
fclose(fp);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|