diff options
Diffstat (limited to 'parseutil/testdcf.c')
| -rw-r--r-- | parseutil/testdcf.c | 25 |
1 files changed, 13 insertions, 12 deletions
diff --git a/parseutil/testdcf.c b/parseutil/testdcf.c index c78c242..00bf059 100644 --- a/parseutil/testdcf.c +++ b/parseutil/testdcf.c @@ -2,11 +2,11 @@ * /src/NTP/ntp4-dev/parseutil/testdcf.c,v 4.10 2005/08/06 14:18:43 kardel RELEASE_20050806_A * * testdcf.c,v 4.10 2005/08/06 14:18:43 kardel RELEASE_20050806_A - * + * * simple DCF77 100/200ms pulse test program (via 50Baud serial line) * * Copyright (c) 1995-2005 by Frank Kardel <kardel <AT> ntp.org> - * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universität Erlangen-Nürnberg, Germany + * Copyright (c) 1989-1994 by Frank Kardel, Friedrich-Alexander Universitaet Erlangen-Nuernberg, Germany * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -46,10 +46,10 @@ /* * state flags */ -#define DCFB_ANNOUNCE 0x0001 /* switch time zone warning (DST switch) */ -#define DCFB_DST 0x0002 /* DST in effect */ -#define DCFB_LEAP 0x0004 /* LEAP warning (1 hour prior to occurrence) */ -#define DCFB_ALTERNATE 0x0008 /* alternate antenna used */ +#define DCFB_ANNOUNCE 0x0001 /* switch time zone warning (DST switch) */ +#define DCFB_DST 0x0002 /* DST in effect */ +#define DCFB_LEAP 0x0004 /* LEAP warning (1 hour prior to occurrence) */ +#define DCFB_CALLBIT 0x0008 /* "call bit" used to signalize irregularities in the control facilities */ struct clocktime /* clock time broken up from time code */ { @@ -102,7 +102,8 @@ static char type(unsigned int); * Second Contents * 0 - 10 AM: free, FM: 0 * 11 - 14 free - * 15 R - alternate antenna + * 15 R - "call bit" used to signalize irregularities in the control facilities + * (until 2003 indicated transmission via alternate antenna) * 16 A1 - expect zone change (1 hour before) * 17 - 18 Z1,Z2 - time zone * 0 0 illegal @@ -130,7 +131,7 @@ static char type(unsigned int); static char revision[] = "4.10"; -static struct rawdcfcode +static struct rawdcfcode { char offset; /* start bit */ } rawdcfcode[] = @@ -185,7 +186,7 @@ ext_bf( register int i, first; first = rawdcfcode[idx].offset; - + for (i = rawdcfcode[idx+1].offset - 1; i >= first; i--) { sum <<= 1; @@ -223,7 +224,7 @@ convert_rawdcf( printf("%-30s", "*** INCOMPLETE"); return CVT_NONE; } - + /* * check Start and Parity bits */ @@ -274,7 +275,7 @@ convert_rawdcf( clock_time->flags |= DCFB_LEAP; if (ext_bf(buffer, DCF_R)) - clock_time->flags |= DCFB_ALTERNATE; + clock_time->flags |= DCFB_CALLBIT; return CVT_OK; } @@ -490,7 +491,7 @@ main( wday[clock_time.wday], (int)clock_time.hour, (int)clock_time.minute, (int)i, (int)clock_time.day, (int)clock_time.month, (int)clock_time.year, - (clock_time.flags & DCFB_ALTERNATE) ? "R" : "_", + (clock_time.flags & DCFB_CALLBIT) ? "R" : "_", (clock_time.flags & DCFB_ANNOUNCE) ? "A" : "_", (clock_time.flags & DCFB_DST) ? "D" : "_", (clock_time.flags & DCFB_LEAP) ? "L" : "_" |