update of 1090 ES radio protocol descriptor [skip ci]

Author: lyusupov

software/firmware/source/SoftRF/src/protocol/radio/ES1090.cpp

@@ -35,15 +35,15 @@ const rf_proto_desc_t es1090_proto_desc = {
   .syncword        = ES1090_SYNCWORD,
   .syncword_size   = ES1090_SYNCWORD_SIZE,
   .net_id          = 0x0000, /* not in use */
-  .payload_type    = RF_PAYLOAD_DIRECT,
+  .payload_type    = RF_PAYLOAD_INVERTED,
   .payload_size    = ES1090_PAYLOAD_SIZE,
   .payload_offset  = 0,
   .crc_type        = ES1090_CRC_TYPE,
   .crc_size        = ES1090_CRC_SIZE,
 
   .bitrate         = RF_BITRATE_1042KBPS,
   .deviation       = RF_FREQUENCY_DEVIATION_NONE,
-  .whitening       = RF_WHITENING_NONE,
+  .whitening       = RF_WHITENING_MANCHESTER,
   .bandwidth       = RF_RX_BANDWIDTH_SS_1567KHZ,
 
   .air_time        = ES1090_AIR_TIME,

software/firmware/source/SoftRF/src/protocol/radio/ES1090.h

@@ -24,11 +24,11 @@
 #include <mode-s.h>
 #include <protocol.h>
 
-#define ES1090_PREAMBLE_TYPE   RF_PREAMBLE_TYPE_AA /* TBD */
-#define ES1090_PREAMBLE_SIZE   1                   /* TBD */
+#define ES1090_PREAMBLE_TYPE   RF_PREAMBLE_TYPE_AA
+#define ES1090_PREAMBLE_SIZE   0
 
-#define ES1090_SYNCWORD        { 0x00 }            /* TBD */
-#define ES1090_SYNCWORD_SIZE   1 
+#define ES1090_SYNCWORD        { 0x02, 0x85 }
+#define ES1090_SYNCWORD_SIZE   2
 #define ES1090_PAYLOAD_SIZE    MODE_S_LONG_MSG_BYTES
 #define ES1090_CRC_TYPE        RF_CHECKSUM_TYPE_CRC_MODES
 #define ES1090_CRC_SIZE        3