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imet54: crc32 check for continuous frames

test
Zilog80 2024-08-18 21:02:35 +02:00
rodzic 43d866be5b
commit 33c341b34a
1 zmienionych plików z 18 dodań i 24 usunięć
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36
demod/mod/imet54mod.c
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@ -553,22 +553,15 @@ static int print_position(gpx_t *gpx, int len, int ecc_frm, int ecc_tlm, int ecc
} }
if ( crc_ok ) fprintf(stdout, " [OK]"); // std frame: frame[104..105]==0x4000 ? if ( crc_ok ) fprintf(stdout, " [OK]"); // std frame: frame[104..105]==0x4000 ?
else { else { // continuous frame: pos_F8_full==pos_F8_std+11 ?
if (gpx->frame[pos_F8] == 0xF8) fprintf(stdout, " [NO]");
else {
crc_ok = crc32ok_cont(gpx->frame); crc_ok = crc32ok_cont(gpx->frame);
if ( crc_ok ) fprintf(stdout, " [OK]"); if ( crc_ok ) fprintf(stdout, " [ok]");
else { else if ( ecc_std == 0 ) {
if ( ecc_std == 0 ) { // continuous frame: pos_F8_full==pos_F8_std+11 ? fprintf(stdout, " [oo]");
fprintf(stdout, " [ok]");
std_ok = 1; std_ok = 1;
} }
else { else if (gpx->frame[pos_F8] == 0xF8) fprintf(stdout, " [NO]");
fprintf(stdout, " [no]"); else fprintf(stdout, " [no]");
std_ok = 0;
}
}
}
} }
// (imet54:GPS+PTU) status: 003E , (imet50:GPS); 0030 // (imet54:GPS+PTU) status: 003E , (imet50:GPS); 0030
@ -684,17 +677,18 @@ static void print_frame(gpx_t *gpx, int len, int b2B) {
} }
if ( crc_ok ) fprintf(stdout, " [OK]"); // std frame: frame[104..105]==0x4000 ? if ( crc_ok ) fprintf(stdout, " [OK]"); // std frame: frame[104..105]==0x4000 ?
else { else { // continuous frame: pos_F8_full==pos_F8_std+11 ?
if (gpx->frame[pos_F8] == 0xF8) fprintf(stdout, " [NO]"); // full frame: pos_F8_full==pos_F8_std+11 ?
else {
crc_ok = crc32ok_cont(gpx->frame); crc_ok = crc32ok_cont(gpx->frame);
if ( crc_ok ) fprintf(stdout, " [OK]"); if ( crc_ok ) fprintf(stdout, " [ok]");
else { else if ( ecc_std == 0 ) {
if ( ecc_std == 0 ) fprintf(stdout, " [ok]"); fprintf(stdout, " [oo]");
}
else if (gpx->frame[pos_F8] == 0xF8) fprintf(stdout, " [NO]");
else fprintf(stdout, " [no]"); else fprintf(stdout, " [no]");
} }
} // [ok] # (-1):
} // CRC32 more reliable than CRC16
// ecc_frm=-1 => errors in parity only ? (JSON output only if crc_ok and ecc_frm >= 0)
if (gpx->option.ecc && ecc_frm != 0) { if (gpx->option.ecc && ecc_frm != 0) {
fprintf(stdout, " # (%d)", ecc_frm); fprintf(stdout, " # (%d)", ecc_frm);
fprintf(stdout, " [%d]", ecc_tlm); fprintf(stdout, " [%d]", ecc_tlm);