kopia lustrzana https://github.com/rs1729/RS
1456 wiersze
47 KiB
C
1456 wiersze
47 KiB
C
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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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// optional JSON "version"
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// (a) set global
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// gcc -DVERSION_JSN [-I<inc_dir>] ...
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#ifdef VERSION_JSN
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#include "version_jsn.h"
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#endif
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// or
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// (b) set local compiler option, e.g.
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// gcc -DVER_JSN_STR=\"0.0.2\" ...
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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; // M10/M20: no 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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i8_t slt; // silent (only raw/json)
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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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//"0100010100100000"; // M20: 45 20 (baud=9600)
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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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#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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typedef struct {
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ui32_t gps_cnt;
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ui8_t cnt;
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ui8_t _diffcnt;
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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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float T; float RH; float TH; float P;
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float batV;
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ui8_t numSV;
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//ui8_t utc_ofs;
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ui8_t fwVer;
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char SN[12+4];
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ui8_t SNraw[3];
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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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int auxlen; // ? 0 .. 0x57-0x45
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int jsn_freq; // freq/kHz (SDR)
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option_t option;
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ui8_t type;
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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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/*
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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 RH (incl.555)
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frame[0x04..0x05]: ADC Temperatur , frame[0x46]: scale/range ?
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frame[0x06..0x07]: ADC RH-Temperature range: 0:0..4095 , 1:4096..8191 , 2:8192..12287
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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 (fwVer < 0x06) ; frame[0x16]: SPI1 P[0] (fwVer >= 0x07), frame[0x17]=0x00
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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[0x24..0x25]: SPI1 P[1..2] (if pressure sensor)
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frame[0x44..0x45]: frame check
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*/
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#define stdFLEN 0x45 // pos[0]=0x45 // M20: 0x45 (0x43) M10: 0x64
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#define pos_GPSTOW 0x0F // 3 byte
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#define pos_GPSlat 0x1C // 4 byte
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#define pos_GPSlon 0x20 // 4 byte
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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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#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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#define pos_SN 0x12 // 3 byte
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#define pos_CNT 0x15 // 1 byte
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#define pos_BlkChk 0x16 // 2 byte
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#define pos_stdFW 0x43 // 1 byte
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#define pos_stdCheck (stdFLEN-1) // 2 byte
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#define len_BlkChk 0x16 // frame[0x02..0x17] , incl. chk16
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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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#define col_Mtype "\x1b[38;5;250m" // 1 byte
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#define col_GPSweek "\x1b[38;5;20m" // 2 byte
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#define col_GPSTOW "\x1b[38;5;27m" // 3 byte
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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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#define col_GPSalt "\x1b[38;5;82m" // 3 byte
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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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#define col_CNT "\x1b[38;5;172m" // 1 byte
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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_CSoo "\x1b[38;5;220m"
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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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#define col_ptuP "\x1b[38;5;180m"
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#define col_ptuT "\x1b[38;5;110m"
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#define col_ptuU "\x1b[38;5;120m"
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#define col_ptuTH "\x1b[38;5;115m"
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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, ret = 0;
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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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double sec_gps0 = 0.0;
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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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ret = get_GPSweek(gpx);
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if (ret) return ret;
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sec_gps0 = (double)gpx->week*SECONDS_IN_WEEK + gpx->tow_ms/1e3;
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gpx->gps_cnt = (ui32_t)(sec_gps0+0.5);
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gpx->cnt = gpx->frame_bytes[pos_CNT];
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gpx->_diffcnt = (ui8_t)(gpx->gps_cnt - gpx->cnt);
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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;
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for (i = 0; i < 4; i++) {
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gpslat |= gpslat_bytes[i] << (8*(3-i));
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}
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lat = gpslat / B60B60;
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gpx->lat = lat;
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return 0;
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}
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static int get_GPSlon(gpx_t *gpx) {
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int i;
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unsigned byte;
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ui8_t gpslon_bytes[4];
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int gpslon;
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double lon;
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for (i = 0; i < 4; i++) {
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byte = gpx->frame_bytes[pos_GPSlon + i];
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gpslon_bytes[i] = byte;
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}
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gpslon = 0;
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for (i = 0; i < 4; i++) {
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gpslon |= gpslon_bytes[i] << (8*(3-i));
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}
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lon = gpslon / B60B60;
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gpx->lon = lon;
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return 0;
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}
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static int get_GPSalt(gpx_t *gpx) { // 24 bit
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int i;
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unsigned byte;
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ui8_t gpsalt_bytes[4];
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int gpsalt;
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double alt;
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for (i = 0; i < 3; i++) {
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byte = gpx->frame_bytes[pos_GPSalt + i];
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gpsalt_bytes[i] = byte;
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}
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gpsalt = 0;
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for (i = 0; i < 3; i++) {
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gpsalt |= gpsalt_bytes[i] << (8*(2-i));
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}
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alt = gpsalt / 100.0;
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gpx->alt = alt;
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return 0;
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}
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static int get_GPSvel(gpx_t *gpx) {
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int i;
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unsigned byte;
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ui8_t gpsVel_bytes[2];
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short vel16;
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double vx, vy, dir, alpha;
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for (i = 0; i < 2; i++) {
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byte = gpx->frame_bytes[pos_GPSvE + i];
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gpsVel_bytes[i] = byte;
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}
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vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
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vx = vel16 / 1e2; // ost
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for (i = 0; i < 2; i++) {
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byte = gpx->frame_bytes[pos_GPSvN + i];
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gpsVel_bytes[i] = byte;
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}
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vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
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vy= vel16 / 1e2; // nord
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gpx->vx = vx;
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gpx->vy = vy;
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gpx->vH = sqrt(vx*vx+vy*vy);
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///*
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alpha = atan2(vy, vx)*180/M_PI; // ComplexPlane (von x-Achse nach links) - GeoMeteo (von y-Achse nach rechts)
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dir = 90-alpha; // z=x+iy= -> i*conj(z)=y+ix=re(i(pi/2-t)), Achsen und Drehsinn vertauscht
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if (dir < 0) dir += 360; // atan2(y,x)=atan(y/x)=pi/2-atan(x/y) , atan(1/t) = pi/2 - atan(t)
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gpx->vD2 = dir;
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//*/
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dir = atan2(vx, vy) * 180 / M_PI;
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if (dir < 0) dir += 360;
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gpx->vD = dir;
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for (i = 0; i < 2; i++) {
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byte = gpx->frame_bytes[pos_GPSvU + i];
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gpsVel_bytes[i] = byte;
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}
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vel16 = gpsVel_bytes[0] << 8 | gpsVel_bytes[1];
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gpx->vV = vel16 / 1e2;
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return 0;
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}
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|
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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 ...
|
|
ui32_t sn_val = 0;
|
|
|
|
for (i = 0; i < 11; i++) gpx->SN[i] = ' '; gpx->SN[11] = '\0';
|
|
for (i = 12; i < 15; i++) gpx->SN[i] = '\0'; gpx->SN[15] = '\0';
|
|
|
|
for (i = 0; i < 3; i++) {
|
|
gpx->SNraw[i] = gpx->frame_bytes[pos_SN + i];
|
|
}
|
|
sn_val = (gpx->SNraw[0]<<16) | (gpx->SNraw[1]<<8) | gpx->SNraw[2];
|
|
|
|
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);
|
|
|
|
|
|
if (sn_val == 0)
|
|
{ // get_GPStime(gpx);
|
|
// replace SN: 001-2-00000 -> 000-0-00000-[_diffcnt]
|
|
sprintf(gpx->SN, "%s", "000-0-00000");
|
|
sprintf(gpx->SN+11, "-%03u", gpx->_diffcnt & 0xFF);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
/*
|
|
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) {
|
|
int i, cs; // msg[0] = len+1
|
|
|
|
cs = 0;
|
|
for (i = 0; i < len; i++) {
|
|
cs = update_checkM10(cs, msg[i]);
|
|
}
|
|
|
|
return cs & 0xFFFF;
|
|
}
|
|
// checkM10(frame, frame[0]-1) = blk_checkM10(frame[0], frame+1)
|
|
static int blk_checkM10(int len, ui8_t *msg) {
|
|
int i, cs;
|
|
ui8_t pre = len & 0xFF; // len(block+chk16)
|
|
cs = 0;
|
|
|
|
cs = update_checkM10(cs, pre);
|
|
|
|
for (i = 0; i < len-2; i++) {
|
|
cs = update_checkM10(cs, msg[i]);
|
|
}
|
|
|
|
return cs & 0xFFFF;
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static float get_Temp(gpx_t *gpx) {
|
|
// NTC-Thermistor Shibaura PB5-41E ?
|
|
// T00 = 273.15 + 0.0 , R00 = 15e3
|
|
// T25 = 273.15 + 25.0 , R25 = 5.369e3
|
|
// B00 = 3450.0 Kelvin // 0C..100C, poor fit low temps
|
|
// [ T/C , R/1e3 ] ( [P__-43]/2.0 ):
|
|
// [ -50.0 , 204.0 ]
|
|
// [ -45.0 , 150.7 ]
|
|
// [ -40.0 , 112.6 ]
|
|
// [ -35.0 , 84.90 ]
|
|
// [ -30.0 , 64.65 ]
|
|
// [ -25.0 , 49.66 ]
|
|
// [ -20.0 , 38.48 ]
|
|
// [ -15.0 , 30.06 ]
|
|
// [ -10.0 , 23.67 ]
|
|
// [ -5.0 , 18.78 ]
|
|
// [ 0.0 , 15.00 ]
|
|
// [ 5.0 , 12.06 ]
|
|
// [ 10.0 , 9.765 ]
|
|
// [ 15.0 , 7.955 ]
|
|
// [ 20.0 , 6.515 ]
|
|
// [ 25.0 , 5.370 ]
|
|
// [ 30.0 , 4.448 ]
|
|
// [ 35.0 , 3.704 ]
|
|
// [ 40.0 , 3.100 ]
|
|
// -> Steinhart-Hart coefficients (polyfit):
|
|
float p0 = 1.07303516e-03,
|
|
p1 = 2.41296733e-04,
|
|
p2 = 2.26744154e-06,
|
|
p3 = 6.52855181e-08;
|
|
// T/K = 1/( p0 + p1*ln(R) + p2*ln(R)^2 + p3*ln(R)^3 )
|
|
|
|
// range/scale 0, 1, 2: // M10-pcb
|
|
float Rs[3] = { 12.1e3 , 36.5e3 , 475.0e3 }; // bias/series
|
|
float Rp[3] = { 1e20 , 330.0e3 , 2000.0e3 }; // parallel, Rp[0]=inf
|
|
|
|
ui8_t scT = 0; // {0,1,2}, range/scale voltage divider
|
|
ui16_t ADC_RT; // ADC12
|
|
//ui16_t Tcal[2];
|
|
|
|
float x, R;
|
|
float T = 0; // T/Kelvin
|
|
|
|
ADC_RT = (gpx->frame_bytes[0x5] << 8) | gpx->frame_bytes[0x4];
|
|
|
|
//ui8_t sc = gpx->frame_bytes[0x32] & 3; // (frame[0x32]<<8)|frame[0x31]
|
|
// frame[0x31..0x32], frame[0x32]: 0x9=0b1001:0, 0xA=0b1010:1, 0x8=0b1000:2
|
|
// ? Temp-Calibration depending on range ?
|
|
//
|
|
// range: 0:0..4095 , 1:4096..8191 , 2:8192..12287
|
|
/*
|
|
if (sc == 0x1) { scT = 0; }
|
|
else if (sc == 0x2) { scT = 1; ADC_RT -= 4096; }
|
|
else if (sc == 0x0) { scT = 2; ADC_RT -= 8192; }
|
|
else: // sc == 0x3 // test only range below:
|
|
*/
|
|
// range, i.e. (ADC_RT>>12)&3
|
|
if (ADC_RT > 8191) { scT = 2; ADC_RT -= 8192; }
|
|
else if (ADC_RT > 4095) { scT = 1; ADC_RT -= 4096; }
|
|
else { scT = 0; } // also if (ADC_RT>>12)&3 == 3
|
|
|
|
// ADC12 , 4096 = 1<<12, max: 4095
|
|
x = (4095.0-ADC_RT)/ADC_RT; // (Vcc-Vout)/Vout = Vcc/Vout - 1
|
|
R = Rs[scT] /( x - Rs[scT]/Rp[scT] );
|
|
|
|
if (R > 0) T = 1.0/( p0 + p1*log(R) + p2*log(R)*log(R) + p3*log(R)*log(R)*log(R) );
|
|
|
|
if (T-273.15 < -120.0 || T-273.15 > 60.0) T = 0; // T < -120C, T > 60C invalid
|
|
|
|
return T - 273.15; // Celsius
|
|
}
|
|
|
|
static float get_Tntc2(gpx_t *gpx) {
|
|
// SMD ntc , RH-Temperature
|
|
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 = 1.0/(1.0/T25 + 1.0/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;
|
|
}
|
|
|
|
static float get_RHraw(gpx_t *gpx) {
|
|
float _rh = -1.0;
|
|
float _RH = -1.0;
|
|
ui16_t ADC_rh;
|
|
|
|
ADC_rh = (gpx->frame_bytes[0x03] << 8) | gpx->frame_bytes[0x02];
|
|
_rh = ADC_rh / (float)(1<<15);
|
|
|
|
_RH = -1.0;
|
|
if (_rh < 1.05) _RH = _rh*100.0;
|
|
|
|
// Transfer function ?
|
|
// Calibration ?
|
|
// (Hyland and Wexler) Tntc2 (T_RH) <-> Tmain ?
|
|
|
|
return _RH;
|
|
}
|
|
|
|
static float get_RH(gpx_t *gpx) {
|
|
// from DF9DQ,
|
|
// https://github.com/einergehtnochrein/ra-firmware
|
|
//
|
|
float TU = get_Tntc2(gpx);
|
|
float RH = -1.0f;
|
|
float x;
|
|
|
|
ui16_t humval = (gpx->frame_bytes[0x03] << 8) | gpx->frame_bytes[0x02];
|
|
ui16_t rh_cal = (gpx->frame_bytes[0x30] << 8) | gpx->frame_bytes[0x2F];
|
|
|
|
float humidityCalibration = 6.4e8f / (rh_cal + 80000.0f);
|
|
|
|
x = (humval + 80000.0f) * humidityCalibration * (1.0f - 5.8e-4f * (TU-25.0f));
|
|
x = 4.16e9f / x;
|
|
x = 10.087f*x*x*x - 211.62f*x*x + 1388.2f*x - 2797.0f;
|
|
|
|
RH = -1.0f;
|
|
if (humval < 48000)
|
|
{
|
|
if (x > -20.0f && x < 120.f) {
|
|
RH = x;
|
|
if (RH < 0.0f ) RH = 0.0f;
|
|
if (RH > 100.0f) RH = 100.0f;
|
|
}
|
|
}
|
|
|
|
// (Hyland and Wexler) Tntc2 (T_RH) <-> Tmain ?
|
|
|
|
return RH;
|
|
}
|
|
|
|
static float get_P(gpx_t *gpx) {
|
|
//
|
|
float hPa = 0.0f;
|
|
ui32_t val = (gpx->frame_bytes[0x25] << 8) | gpx->frame_bytes[0x24]; // cf. DF9DQ
|
|
ui8_t p0 = 0x00;
|
|
|
|
if (gpx->fwVer >= 0x07) { // SPI1_P[0]
|
|
p0 = gpx->frame_bytes[0x16];
|
|
}
|
|
val = (val << 8) | p0;
|
|
|
|
if (val > 0) {
|
|
hPa = val/(float)(16*256); // 4096=0x1000
|
|
}
|
|
|
|
return hPa;
|
|
}
|
|
|
|
static float get_BatV(gpx_t *gpx) {
|
|
float batV = 0.0f;
|
|
ui8_t val = gpx->frame_bytes[0x26]; // cf. DF9DQ
|
|
|
|
batV = val * (3.3f/255); // upper 8 bits ADC
|
|
|
|
return batV;
|
|
}
|
|
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
static int print_pos(gpx_t *gpx, int bcOK, int csOK) {
|
|
int err, err2;
|
|
|
|
if (1 || gpx->type == t_M20)
|
|
{
|
|
err = 0;
|
|
err |= get_GPStime(gpx); // incl. get_GPSweek(gpx)
|
|
err |= get_GPSlat(gpx);
|
|
err |= get_GPSlon(gpx);
|
|
err |= get_GPSalt(gpx);
|
|
err2 = get_GPSvel(gpx);
|
|
}
|
|
else err = 0xFF;
|
|
|
|
if (!err) {
|
|
|
|
Gps2Date(gpx->week, gpx->gpssec, &gpx->jahr, &gpx->monat, &gpx->tag);
|
|
get_SN(gpx);
|
|
|
|
if (gpx->option.ptu && csOK) {
|
|
gpx->T = get_Temp(gpx); // temperature
|
|
gpx->TH = get_Tntc2(gpx); // rel. humidity sensor temperature
|
|
gpx->RH = get_RH(gpx); // relative humidity
|
|
gpx->P = get_P(gpx); // (optional) pressure
|
|
}
|
|
|
|
gpx->batV = get_BatV(gpx); // battery V
|
|
|
|
if ( !gpx->option.slt )
|
|
{
|
|
if (gpx->option.col) {
|
|
fprintf(stdout, col_TXT);
|
|
if (gpx->option.vbs >= 3) {
|
|
fprintf(stdout, "[%3d]", gpx->frame_bytes[pos_CNT]);
|
|
fprintf(stdout, " (W "col_GPSweek"%d"col_TXT") ", gpx->week);
|
|
}
|
|
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"%4.1f"col_TXT" D: "col_GPSvel"%5.1f"col_TXT" vV: "col_GPSvel"%3.1f"col_TXT" ", gpx->vH, gpx->vD, gpx->vV);
|
|
}
|
|
if (gpx->option.vbs >= 1 && (bcOK || csOK)) { // SN
|
|
fprintf(stdout, " SN: "col_SN"%s"col_TXT, gpx->SN);
|
|
}
|
|
if (gpx->option.vbs >= 1) {
|
|
fprintf(stdout, " # ");
|
|
if (gpx->fwVer < 0x07) {
|
|
if (bcOK > 0) fprintf(stdout, " "col_CSok"(ok)"col_TXT);
|
|
else if (bcOK < 0) fprintf(stdout, " "col_CSoo"(oo)"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) {
|
|
fprintf(stdout, " ");
|
|
if (gpx->T > -273.0f) fprintf(stdout, " T:%.1fC", gpx->T);
|
|
if (gpx->RH > -0.5f) fprintf(stdout, " RH=%.0f%%", gpx->RH);
|
|
if (gpx->option.vbs >= 2) {
|
|
if (gpx->TH > -273.0f) fprintf(stdout, " TH:%.1fC", gpx->TH);
|
|
}
|
|
if (gpx->P > 0.0f) {
|
|
if (gpx->P < 10.0f) fprintf(stdout, " P=%.3fhPa ", gpx->P);
|
|
else if (gpx->P < 100.0f) fprintf(stdout, " P=%.2fhPa ", gpx->P);
|
|
else fprintf(stdout, " P=%.1fhPa ", gpx->P);
|
|
}
|
|
}
|
|
if (gpx->option.vbs >= 3 && csOK) {
|
|
fprintf(stdout, " (bat:%.2fV)", gpx->batV);
|
|
}
|
|
fprintf(stdout, ANSI_COLOR_RESET"");
|
|
}
|
|
else {
|
|
if (gpx->option.vbs >= 3) {
|
|
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: %4.1f D: %5.1f vV: %3.1f ", gpx->vH, gpx->vD, gpx->vV);
|
|
}
|
|
if (gpx->option.vbs >= 1 && (bcOK || csOK)) { // SN
|
|
fprintf(stdout, " SN: %s", gpx->SN);
|
|
}
|
|
if (gpx->option.vbs >= 1) {
|
|
fprintf(stdout, " # ");
|
|
if (gpx->fwVer < 0x07) {
|
|
//if (bcOK) fprintf(stdout, " (ok)"); else fprintf(stdout, " (no)");
|
|
if (bcOK > 0) fprintf(stdout, " (ok)");
|
|
else if (bcOK < 0) fprintf(stdout, " (oo)");
|
|
else fprintf(stdout, " (no)");
|
|
}
|
|
if (csOK) fprintf(stdout, " [OK]"); else fprintf(stdout, " [NO]");
|
|
}
|
|
if (gpx->option.ptu && csOK) {
|
|
fprintf(stdout, " ");
|
|
if (gpx->T > -273.0f) fprintf(stdout, " T:%.1fC", gpx->T);
|
|
if (gpx->RH > -0.5f) fprintf(stdout, " RH=%.0f%%", gpx->RH);
|
|
if (gpx->option.vbs >= 2) {
|
|
if (gpx->TH > -273.0f) fprintf(stdout, " TH:%.1fC", gpx->TH);
|
|
}
|
|
if (gpx->P > 0.0f) {
|
|
if (gpx->P < 10.0f) fprintf(stdout, " P=%.3fhPa ", gpx->P);
|
|
else if (gpx->P < 100.0f) fprintf(stdout, " P=%.2fhPa ", gpx->P);
|
|
else fprintf(stdout, " P=%.1fhPa ", gpx->P);
|
|
}
|
|
}
|
|
if (gpx->option.vbs >= 3 && csOK) {
|
|
fprintf(stdout, " (bat:%.2fV)", gpx->batV);
|
|
}
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
|
|
|
|
if (gpx->option.jsn) {
|
|
// Print out telemetry data as JSON
|
|
if (csOK) {
|
|
char *ver_jsn = NULL;
|
|
int j;
|
|
char sn_id[4+12+4] = "M20-";
|
|
|
|
strncpy(sn_id+4, gpx->SN, 12+4);
|
|
sn_id[15+4] = '\0';
|
|
|
|
fprintf(stdout, "{ \"type\": \"%s\"", "M20");
|
|
fprintf(stdout, ", \"frame\": %lu, ", (unsigned long)gpx->gps_cnt); // sec_gps0+0.5
|
|
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);
|
|
if (gpx->option.ptu) { // temperature
|
|
if (gpx->T > -273.0f) fprintf(stdout, ", \"temp\": %.1f", gpx->T );
|
|
if (gpx->RH > -0.5f) fprintf(stdout, ", \"humidity\": %.1f", gpx->RH );
|
|
if (gpx->P > 0.0f) fprintf(stdout, ", \"pressure\": %.2f", gpx->P );
|
|
}
|
|
fprintf(stdout, ", \"batt\": %.2f", gpx->batV);
|
|
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);
|
|
if (gpx->jsn_freq > 0) {
|
|
fprintf(stdout, ", \"freq\": %d", gpx->jsn_freq);
|
|
}
|
|
|
|
// Reference time/position
|
|
fprintf(stdout, ", \"ref_datetime\": \"%s\"", "GPS" ); // {"GPS", "UTC"} GPS-UTC=leap_sec
|
|
fprintf(stdout, ", \"ref_position\": \"%s\"", "GPS" ); // {"GPS", "MSL"} GPS=ellipsoid , MSL=geoid
|
|
|
|
#ifdef VER_JSN_STR
|
|
ver_jsn = VER_JSN_STR;
|
|
#endif
|
|
if (ver_jsn && *ver_jsn != '\0') fprintf(stdout, ", \"version\": \"%s\"", ver_jsn);
|
|
fprintf(stdout, " }\n");
|
|
fprintf(stdout, "\n");
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static int print_frame(gpx_t *gpx, int pos, int b2B) {
|
|
int i;
|
|
ui8_t byte;
|
|
int cs1, cs2;
|
|
int bc1, bc2, bc;
|
|
int flen = stdFLEN; // stdFLEN=0x64, auxFLEN=0x76; M20:0x45 ?
|
|
int pos_fw = pos_stdFW;
|
|
int pos_check = pos_stdCheck;
|
|
|
|
if (b2B) {
|
|
bits2bytes(gpx->frame_bits, gpx->frame_bytes);
|
|
}
|
|
flen = gpx->frame_bytes[0];
|
|
if (flen == stdFLEN) gpx->auxlen = 0;
|
|
else {
|
|
gpx->auxlen = flen - stdFLEN;
|
|
//if (gpx->auxlen < 0 || gpx->auxlen > AUX_LEN) gpx->auxlen = 0; // 0x43,0x45
|
|
if (gpx->auxlen < 0) {
|
|
gpx->auxlen = 0;
|
|
pos_fw = flen-2; // only if flen < stdFLEN
|
|
}
|
|
else if (gpx->auxlen > AUX_LEN) {
|
|
gpx->auxlen = AUX_LEN;
|
|
flen = stdFLEN+AUX_LEN;
|
|
}
|
|
}
|
|
pos_check = flen-1;
|
|
gpx->fwVer = gpx->frame_bytes[pos_fw];
|
|
if (gpx->fwVer > 0x20) gpx->fwVer = 0;
|
|
|
|
cs1 = (gpx->frame_bytes[pos_check] << 8) | gpx->frame_bytes[pos_check+1];
|
|
cs2 = checkM10(gpx->frame_bytes, pos_check);
|
|
|
|
bc1 = (gpx->frame_bytes[pos_BlkChk] << 8) | gpx->frame_bytes[pos_BlkChk+1];
|
|
bc2 = blk_checkM10(len_BlkChk, gpx->frame_bytes+2); // len(essentialBlock+chk16) = 0x16
|
|
if (bc1 == bc2) bc = 1;
|
|
else if (bc1 == 0) bc = -1;
|
|
else bc = 0;
|
|
|
|
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;
|
|
}
|
|
|
|
if (gpx->option.raw) {
|
|
|
|
if (gpx->option.col /* && gpx->frame_bytes[1] != 0x49 */) {
|
|
fprintf(stdout, col_FRTXT);
|
|
for (i = 0; i < flen+1; i++) {
|
|
byte = gpx->frame_bytes[i];
|
|
if (i == 1) fprintf(stdout, col_Mtype);
|
|
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);
|
|
if ((i >= pos_GPSalt) && (i < pos_GPSalt+3)) fprintf(stdout, col_GPSalt);
|
|
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);
|
|
if ((i >= pos_SN) && (i < pos_SN+3)) fprintf(stdout, col_SN);
|
|
if (i == pos_CNT) fprintf(stdout, col_CNT);
|
|
if (gpx->fwVer < 0x07) {
|
|
if ((i >= pos_BlkChk) && (i < pos_BlkChk+2)) fprintf(stdout, col_Check);
|
|
} else {
|
|
if ((i >= pos_BlkChk+1) && (i < pos_BlkChk+2)) fprintf(stdout, col_Check);
|
|
}
|
|
if (i >= 0x02 && i <= 0x03) fprintf(stdout, col_ptuU);
|
|
if (i >= 0x04 && i <= 0x05) fprintf(stdout, col_ptuT);
|
|
if (i >= 0x06 && i <= 0x07) fprintf(stdout, col_ptuTH);
|
|
if (i == 0x16 && gpx->fwVer >= 0x07 || i >= 0x24 && i <= 0x25) fprintf(stdout, col_ptuP);
|
|
|
|
if ((i >= pos_check) && (i < pos_check+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);
|
|
if (gpx->fwVer < 0x07) {
|
|
if (bc > 0) fprintf(stdout, " "col_CSok"(ok)"col_TXT);
|
|
else if (bc < 0) fprintf(stdout, " "col_CSoo"(oo)"col_TXT);
|
|
else fprintf(stdout, " "col_CSno"(no)"col_TXT);
|
|
}
|
|
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 {
|
|
for (i = 0; i < flen+1; i++) {
|
|
byte = gpx->frame_bytes[i];
|
|
fprintf(stdout, "%02x", byte);
|
|
}
|
|
if (gpx->option.vbs) {
|
|
fprintf(stdout, " # %04x", cs2);
|
|
if (gpx->fwVer < 0x07) {
|
|
if (bc > 0) fprintf(stdout, " (ok)");
|
|
else if (bc < 0) fprintf(stdout, " (oo)");
|
|
else fprintf(stdout, " (no)");
|
|
}
|
|
if (cs1 == cs2) fprintf(stdout, " [OK]"); else fprintf(stdout, " [NO]");
|
|
}
|
|
fprintf(stdout, "\n");
|
|
}
|
|
if (gpx->option.slt /*&& gpx->option.jsn && gpx->frame_bytes[1] != 0x49*/) {
|
|
print_pos(gpx, bc, cs1 == cs2);
|
|
}
|
|
}
|
|
/*
|
|
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);
|
|
}
|
|
if (cs1 == cs2) fprintf(stdout, " [OK]"); else fprintf(stdout, " [NO]");
|
|
fprintf(stdout, "\n");
|
|
}
|
|
}
|
|
*/
|
|
else print_pos(gpx, bc, cs1 == cs2);
|
|
|
|
return (gpx->frame_bytes[0]<<8)|gpx->frame_bytes[1];
|
|
}
|
|
|
|
/* -------------------------------------------------------------------------- */
|
|
|
|
|
|
int main(int argc, char **argv) {
|
|
|
|
//int option_res = 0; // genauere Bitmessung
|
|
int option_min = 0;
|
|
int option_iq = 0;
|
|
int option_iqdc = 0;
|
|
int option_lp = 0;
|
|
int option_dc = 0;
|
|
int option_noLUT = 0;
|
|
int option_softin = 0;
|
|
int option_pcmraw = 0;
|
|
int wavloaded = 0;
|
|
int sel_wavch = 0; // audio channel: left
|
|
int spike = 0;
|
|
int rawhex = 0;
|
|
int cfreq = -1;
|
|
|
|
float baudrate = -1;
|
|
|
|
FILE *fp = NULL;
|
|
char *fpname = NULL;
|
|
|
|
int k;
|
|
|
|
int bit, bit0;
|
|
int bitpos = 0;
|
|
int bitQ;
|
|
int pos;
|
|
hsbit_t hsbit, hsbit1;
|
|
|
|
//int headerlen = 0;
|
|
|
|
int header_found = 0;
|
|
|
|
float thres = 0.76;
|
|
float _mv = 0.0;
|
|
|
|
float lpIQ_bw = 24e3;
|
|
|
|
int symlen = 2;
|
|
int bitofs = 0; // 0 .. +2
|
|
int shift = 0;
|
|
|
|
pcm_t pcm = {0};
|
|
dsp_t dsp = {0}; //memset(&dsp, 0, sizeof(dsp));
|
|
|
|
hdb_t hdb = {0};
|
|
|
|
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) ) {
|
|
gpx.option.vbs = 1;
|
|
}
|
|
else if ( (strcmp(*argv, "-vv" ) == 0) ) gpx.option.vbs = 2;
|
|
else if ( (strcmp(*argv, "-vvv") == 0) ) gpx.option.vbs = 3;
|
|
else if ( (strcmp(*argv, "-r") == 0) || (strcmp(*argv, "--raw") == 0) ) {
|
|
gpx.option.raw = 1;
|
|
}
|
|
else if ( (strcmp(*argv, "-i") == 0) || (strcmp(*argv, "--invert") == 0) ) {
|
|
gpx.option.inv = 1; // nicht noetig
|
|
}
|
|
else if ( (strcmp(*argv, "-c") == 0) || (strcmp(*argv, "--color") == 0) ) {
|
|
gpx.option.col = 1;
|
|
}
|
|
else if ( (strcmp(*argv, "--br") == 0) ) {
|
|
++argv;
|
|
if (*argv) {
|
|
baudrate = atof(*argv);
|
|
if (baudrate < 9000 || baudrate > 10000) baudrate = BAUD_RATE; // default: M20:9600, M10:9615
|
|
}
|
|
else return -1;
|
|
}
|
|
//else if (strcmp(*argv, "--res") == 0) { option_res = 1; }
|
|
else if ( (strcmp(*argv, "--ptu") == 0) ) {
|
|
gpx.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)
|
|
else if (strcmp(*argv, "--softin") == 0) { option_softin = 1; } // float32 soft input
|
|
else if (strcmp(*argv, "--silent") == 0) { gpx.option.slt = 1; }
|
|
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
|
|
else if (strcmp(*argv, "--iqdc") == 0) { option_iqdc = 1; } // iq-dc removal (iq0,2,3)
|
|
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, "--lpIQ") == 0) { option_lp |= LP_IQ; } // IQ/IF lowpass
|
|
else if (strcmp(*argv, "--lpbw") == 0) { // IQ lowpass BW / kHz
|
|
double bw = 0.0;
|
|
++argv;
|
|
if (*argv) bw = atof(*argv);
|
|
else return -1;
|
|
if (bw > 4.6 && bw < 48.0) lpIQ_bw = bw*1e3;
|
|
option_lp |= LP_IQ;
|
|
}
|
|
else if (strcmp(*argv, "--lpFM") == 0) { option_lp |= LP_FM; } // FM lowpass
|
|
else if (strcmp(*argv, "--dc") == 0) { option_dc = 1; }
|
|
else if (strcmp(*argv, "--noLUT") == 0) { option_noLUT = 1; }
|
|
else if (strcmp(*argv, "--min") == 0) {
|
|
option_min = 1;
|
|
}
|
|
else if (strcmp(*argv, "--json") == 0) { gpx.option.jsn = 1; }
|
|
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;
|
|
}
|
|
else if (strcmp(*argv, "--rawhex") == 0) { rawhex = 2; } // raw hex input
|
|
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;
|
|
|
|
if (option_iq == 5 && option_dc) option_lp |= LP_FM;
|
|
|
|
// LUT faster for decM, however frequency correction after decimation
|
|
// LUT recommonded if decM > 2
|
|
//
|
|
if (option_noLUT && option_iq == 5) dsp.opt_nolut = 1; else dsp.opt_nolut = 0;
|
|
|
|
|
|
if (gpx.option.raw && gpx.option.jsn) gpx.option.slt = 1;
|
|
|
|
if (cfreq > 0) gpx.jsn_freq = (cfreq+500)/1000;
|
|
|
|
|
|
#ifdef EXT_FSK
|
|
if (!option_softin) {
|
|
option_softin = 1;
|
|
fprintf(stderr, "reading float32 soft symbols\n");
|
|
}
|
|
#endif
|
|
|
|
if (!rawhex) {
|
|
if (!option_softin) {
|
|
|
|
if (option_iq == 0 && option_pcmraw) {
|
|
fclose(fp);
|
|
fprintf(stderr, "error: raw data not IQ\n");
|
|
return -1;
|
|
}
|
|
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;
|
|
}
|
|
}
|
|
|
|
if (cfreq > 0) {
|
|
int fq_kHz = (cfreq - dsp.xlt_fq*pcm.sr + 500)/1e3;
|
|
gpx.jsn_freq = fq_kHz;
|
|
}
|
|
|
|
// 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;
|
|
dsp.sps = (float)dsp.sr/dsp.br;
|
|
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 = 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);
|
|
}
|
|
|
|
if (baudrate > 0) {
|
|
dsp.br = (float)baudrate;
|
|
dsp.sps = (float)dsp.sr/dsp.br;
|
|
fprintf(stderr, "sps corr: %.4f\n", dsp.sps);
|
|
}
|
|
|
|
//headerlen = dsp.hdrlen;
|
|
|
|
|
|
k = init_buffers(&dsp);
|
|
if ( k < 0 ) {
|
|
fprintf(stderr, "error: init buffers\n");
|
|
return -1;
|
|
}
|
|
|
|
bitofs += shift;
|
|
}
|
|
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;
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
}
|
|
|
|
if (header_found == EOF) break;
|
|
|
|
// mv == correlation score
|
|
if (_mv*(0.5-gpx.option.inv) < 0) {
|
|
gpx.option.inv ^= 0x1; // M10: irrelevant
|
|
}
|
|
|
|
if (header_found) {
|
|
|
|
bitpos = 0;
|
|
pos = 0;
|
|
pos /= 2;
|
|
bit0 = '0'; // oder: _mv[j] > 0
|
|
|
|
while ( pos < BITFRAME_LEN+BITAUX_LEN ) {
|
|
|
|
if (option_softin) {
|
|
float s1 = 0.0;
|
|
float s2 = 0.0;
|
|
float s = 0.0;
|
|
bitQ = f32soft_read(fp, &s1);
|
|
if (bitQ != EOF) {
|
|
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
|
|
}
|
|
}
|
|
}
|
|
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;
|
|
}
|
|
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
|
|
// M20 only single frame ... AUX ?
|
|
if (gpx.option.vbs < 3) { // && (regulare frame) // print_frame-return?
|
|
while ( bitpos < 5*BITFRAME_LEN ) {
|
|
if (option_softin) {
|
|
float s = 0.0;
|
|
bitQ = f32soft_read(fp, &s);
|
|
}
|
|
else {
|
|
bitQ = read_slbit(&dsp, &bit, 0, bitofs, bitpos, -1, 0); // symlen=2
|
|
}
|
|
if (bitQ == EOF) break;
|
|
bitpos++;
|
|
}
|
|
}
|
|
|
|
pos = 0;
|
|
}
|
|
}
|
|
|
|
if (!option_softin) free_buffers(&dsp);
|
|
else {
|
|
if (hdb.buf) { free(hdb.buf); hdb.buf = NULL; }
|
|
}
|
|
}
|
|
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, 0, 2*(FRAME_LEN+AUX_LEN)+12);
|
|
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);
|
|
}
|
|
}
|
|
}
|
|
|
|
fclose(fp);
|
|
|
|
return 0;
|
|
}
|
|
|