diff options
| -rw-r--r-- | dumpocsag.c | 28 |
1 files changed, 21 insertions, 7 deletions
diff --git a/dumpocsag.c b/dumpocsag.c index 47a292b..f3527b2 100644 --- a/dumpocsag.c +++ b/dumpocsag.c @@ -13,14 +13,28 @@ #include "rtl-sdr.h" /* POCSAG parameters */ -#define POCSAG_ID "POCSAG" -#define POCSAG_SYM_RATE 1200 -#define POCSAG_FM_DEV 4500 -#define POCSAG_SPS 8 +#define POCSAG_ID "POCSAG" +#define POCSAG_SYM_RATE 1200 +#define POCSAG_FM_DEV 4500 +#define POCSAG_SPS 8 +#define POCSAG_STD_SYNC 0x7cd215d8 +#define POCSAG_STD_IDLE 0x7a89c197 +#define POCSAG_WORDSIZE 32 +#define POCSAG_SOFTTHRESHOLD 2 +#define POCSAG_MAXWORD 16 + +/* BCH parameters */ +#define POCSAG_BCH_POLY 0x769 +#define POCSAG_BCH_N 31 +#define POCSAG_BCH_K 21 + +/* POCASG states */ +#define POCSAG_SEARCH_PREAMBLE_START 0 +#define POCSAG_SEARCH_PREAMBLE_END 1 +#define POCSAG_SYNC 2 +#define POCSAG_SEARCH_SYNC 3 +#define POCSAG_SYNCHED 4 -#define POCSAG_BCH_POLY 0x769 -#define POCSAG_BCH_N 31 -#define POCSAG_BCH_K 21 int hammingWeight(int n) { unsigned int c; |