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TTY/TDD support

This commit is contained in:
Rodrigo Menezes 2016-01-19 19:31:20 -02:00 committed by Kamal Mostafa
parent a23c5c73be
commit f48257ac59
1 changed files with 11 additions and 0 deletions
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11
src/minimodem.c
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@ -409,6 +409,7 @@ usage()
" 1200 Bell202 1200 bps --ascii\n" " 1200 Bell202 1200 bps --ascii\n"
" 300 Bell103 300 bps --ascii\n" " 300 Bell103 300 bps --ascii\n"
" rtty RTTY 45.45 bps --baudot --stopbits=1.5\n" " rtty RTTY 45.45 bps --baudot --stopbits=1.5\n"
" tdd TTY/TDD 45.45 bps --baudot --stopbits=2.0\n"
" same NOAA SAME 520.83 bps --sync-byte=0xAB ...\n" " same NOAA SAME 520.83 bps --sync-byte=0xAB ...\n"
" callerid Bell202 CID 1200 bps\n" " callerid Bell202 CID 1200 bps\n"
" uic{-train,-ground} UIC-751-3 Train/Ground 600 bps\n" " uic{-train,-ground} UIC-751-3 Train/Ground 600 bps\n"
@ -781,6 +782,16 @@ main( int argc, char*argv[] )
bfsk_n_data_bits = 5; bfsk_n_data_bits = 5;
if ( bfsk_nstopbits < 0 ) if ( bfsk_nstopbits < 0 )
bfsk_nstopbits = 1.5; bfsk_nstopbits = 1.5;
} else if ( strncasecmp(modem_mode, "tdd",3)==0 ) {
bfsk_databits_decode = databits_decode_baudot;
bfsk_databits_encode = databits_encode_baudot;
bfsk_data_rate = 45.45;
if ( bfsk_n_data_bits == 0 )
bfsk_n_data_bits = 5;
if ( bfsk_nstopbits < 0 )
bfsk_nstopbits = 2.0;
bfsk_mark_f = 1400;
bfsk_space_f = 1800;
} else if ( strncasecmp(modem_mode, "same",5)==0 ) { } else if ( strncasecmp(modem_mode, "same",5)==0 ) {
// http://www.nws.noaa.gov/nwr/nwrsame.htm // http://www.nws.noaa.gov/nwr/nwrsame.htm
bfsk_data_rate = 520.0 + 5/6.0; bfsk_data_rate = 520.0 + 5/6.0;