Preamble: 17 01 0c
Packet length: XX XX XX XX
Port: 01 19 (rendezvous) / 01 1A (WACP)
Msg. Class ID: XX XX XX XX
Msg. Size: XX XX XX XX
encrypt/comp: 00
object size: XX XX XX XX [if 0x0, no object]
obj. ClassID: XX XX XX XX
obj. size: 2-byte or 4-byte, depending on ClassID
obj. version: XX XX
bitmask: 00
static Payload: 2 bytes to define staticly-sized variable's size, followed by statically sized values.
OR
Dyn. payload: 2 bytes set to zero, followed by (variable size, variable data) pairs.
obj. CRC: XX XX
Msg CRC: XX XX
packet CRC: XX XX
4-byte object classes:
- Class groups
00 17 00 00: Class session mask- exception:
0x00171000is a 2-byte size parameter
- exception:
00 5c 00 00: Collection mask00 00 12 00: Extended size mask
- Individual classes:
00 01 00 00: CECGDPacer object00 1B 00 00: CSpiroDStd object
CRC calculations documented farther down
Preamble: 17 01 0c
Packet length: 00 00 00 1a
Port: 01 19 (rendezvous)
Msg. Class ID: 00 18 0b 00 [FmDEVICE,GnRESPONSE,SpGET_DEVICEDESCRIPTION]
Msg. Size: 00 00 00 07
encrypt/comp: 00
object size: 00 00 00 00
Msg CRC: 71 e8
packet CRC: 80 3e
Preamble: 17 01 0c
Packet length: 00 00 00 93 [147]
Port: 01 19 (rendezvous)
Msg. Class ID: 00 18 0f 00 [FmDEVICE,GnRESPONSE,SpPUT_DEVICEDESCRIPTION]
Msg. Size: 00 00 00 80 [128]
encrypt/comp: 00
object size: 00 00 00 79 [127]
obj. ClassID: 00 18 00 00 [FmDEVICE,GnDATA,SpSTANDARD]
obj. size: 00 73 [115]
obj. version: 00 66 [102]
bitmask: 00
Static size:00 6c [108]
datetime: 07 e7 03 01 0d 0a 0b 20 [Should be all zeros; no RTC on Disco]
runtime: 00 00 02 9d [Total on time for the unit since manufacture]
model name: 50 72 6f 20 39 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [32x chars]
S/N: 31 32 33 30 36 30 30 30 30 31 39 32 00 00 00 00 [16x chars]
GUID: e1 24 81 d1 cc b6 45 73 af 29 f1 63 42 53 85 cc [16x uint8]
model #: 39 30 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [32x chars]
obj. CRC: b8 91
Msg CRC: 79 4a
packet CRC: 51 b4
Preamble: 17 01 0c
Packet length: 00 00 00 1a
Port: 01 19 (Rendezvous)
Msg. Class ID: 00 03 0b 00
Msg. Size: 00 00 00 07
encrypt/comp: 00
object size: 00 00 00 00
Msg CRC: e9 32
packet CRC: 94 fe
ex. failed temp: 17010c0000004e011900030f000000003b000000003400030001002e00cd000010000000000000000000030004000f0f0d000000130075001f000d00c80000064395ff7400049a2d6237885aac3b
ex.success temp: 17010c0000004e011900030f000000003b000000003400030001002e00cd000010000000000000000000010000000f0f0d000000130075001f000d00c80000064398ee520001bb0c039ae730852e
Preamble: 17 01 0c
Packet length: 00 00 00 4e [78 bytes]
Port: 01 19 [rendezvous]
Msg. Class ID: 00 03 0f 00 [FmTEMP (00 03),GnRESPONSE (0f),SpPUT_TEMP (00)]
Msg. Size: 00 00 00 3b [59 bytes]
encrypt/comp: 00 [uncompressed, unencrypted]
object size: 00 00 00 34 [52 bytes]
obj. ClassID: 00 03 00 01 [CTempDData {FmTEMP (00 03),GnDATA (00),SpDATA (01)}]
obj. size: 00 2e [46 bytes]
obj. version: 00 cd [v 205]
bitmask: 00 [uncompressed, unencrypted]
Static size: 00 10 [the next 16 bytes are static variables]
static data:
time: 00 00 00 00 00 00 00 00 [No RTC on Disco]
status: 00 01 [Data complete] (0x0 = data not available)
Ext. Status: 00 00 [No extended status]
Source: 00 0f [Disco]
mode of op.: 0f [Tympanic]
Calc. method: 0c [IR] (0x0d = Technique compensation calc)
dynamic data:
inner obj. size: 00 00 00 13 [The next 19 bits are a dynamic object]
inner obj. id: 00 75 00 1f [CNumDFloat {FmNUMERIC (00 75),GnDATA (00),SpFLOAT (1f)}]
obj size: 00 0d [14 bytes]
obj. vers: 00 c8 [v 200]
bit mask: 00 [uncompressed, unencrypted]
static size 00 06 [the next 6 bytes are a static variable]
Temp (K): 43 98 ee 52 [305.861877K]
Status: 00 01 [Bitmask; Valid measurement]
inner obj crc: bb 0c
obj. CRC: 03 9a
Msg CRC: e7 30
packet CRC: 85 2e
CRC is calculated using pregenerated table, plus the following function:
static const uint16 CRCTable[ 256 ] = {
0x0000, 0x1189, 0x2312, 0x329b, 0x4624, 0x57ad, 0x6536, 0x74bf,
0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c, 0xdbe5, 0xe97e, 0xf8f7,
0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c, 0x75b7, 0x643e,
0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff, 0xe876,
0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5,
0x3183, 0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c,
0xbdcb, 0xac42, 0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974,
0x4204, 0x538d, 0x6116, 0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb,
0xce4c, 0xdfc5, 0xed5e, 0xfcd7, 0x8868, 0x99e1, 0xab7a, 0xbaf3,
0x5285, 0x430c, 0x7197, 0x601e, 0x14a1, 0x0528, 0x37b3, 0x263a,
0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960, 0xbbfb, 0xaa72,
0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630, 0x17b9,
0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x738,
0xffcf, 0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70,
0x8408, 0x9581, 0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7,
0x0840, 0x19c9, 0x2b52, 0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff,
0x9489, 0x8500, 0xb79b, 0xa612, 0xd2ad, 0xc324, 0xf1bf, 0xe036,
0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5, 0x4f6c, 0x7df7, 0x6c7e,
0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7, 0xc03c, 0xd1b5,
0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74, 0x5dfd,
0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c,
0xc60c, 0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3,
0x4a44, 0x5bcd, 0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb,
0xd68d, 0xc704, 0xf59f, 0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232,
0x5ac5, 0x4b4c, 0x79d7, 0x685e, 0x1ce1, 0x0d68, 0x3ff3, 0x2e7a,
0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a, 0xb0a3, 0x8238, 0x93b1,
0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb, 0x0e70, 0x1ff9,
0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9, 0x8330,
0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0xf78
};
CRC=0xFFFF
for byte in buffer
CRC = (CRC >> 8) XOR CRCTable[byte XOR (CRC AND 0x00FF)]
return CRC
Not necessary, but hanging on to for documentation
Host: 0x17010c000000250119001d0b0100000012000000000b524e445a434f4e4e45435457f3e929 [37 bytes long]
Device: 0x17010c0000001a0119001d0f0100000007000000000083b99238 [26 bytes long]
Host: 0x17010c0000003b0119001d0102000000280000000021001d0000001b0065000012ffffffffffffffffffffffffffffffff00000000c01b499ed576
Device: 0x17010c0000003b0119001d0103000000280000000021001d0000001b0065000012ffffffffffffffffffffffffffffffff00000000c01b265a85f8
Preamble: 17 01 0c
Packet length: 00 00 00 25 (37 bytes long)
Port: 01 19 (rendezvous)
Msg. Class ID: 00 1d 0b 01
Msg. Size: 00 00 00 12
encrypt/comp: 00
object size: 00 00 000b
Rendezvous obj: 52 4e 44 5a 43 4f 4e 4e 45 43 54
Msg CRC: 57 f3
packet CRC: e9 29
Preamble: 17 01 0c
Packet length: 00 00 00 1a (26 bytes long)
Port: 01 19 (rendezvous)
Msg. Class ID: 00 1d 0f 01
Msg. Size: 00 00 00 07
encrypt/comp: 00
object size: 00 00 00 00
Msg CRC: 83 b9
packet CRC: 92 38
Preamble: 17 01 0c
Packet length: 00 00 00 3b (59 bytes long)
Port: 01 19 (rendezvous)
Msg. Class ID: 00 1d 01 02
Msg. Size: 00 00 00 28
encrypt/comp: 00
object size: 00 00 00 21
obj. ClassID: 00 1d 00 00
obj. size: 00 1b
obj. version: 00 65
bitmask: 00
Variable size: 00 12
Client GUID: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
DDS Version: 00 00
Dyn. data size: 00 00
obj. CRC: c0 1b
Msg CRC: 49 9e
packet CRC: d5 76
Preamble: 17 01 0c
Packet length: 00 00 00 3b (59 bytes long)
Port: 01 19 (rendezvous)
Msg. Class ID: 00 1d 01 03
Msg. Size: 00 00 00 28
encrypt/comp: 00
object size: 00 00 00 21
obj. ClassID: 00 1d 00 00
obj. size: 00 1b
obj. version: 00 65
bitmask: 00
Variable size: 00 12
Client GUID: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
example: e1 24 81 d1 cc b6 45 73 af 29 f1 63 42 53 85 cc
DDS Version: 00 00
example: 00 21
Dyn. data size: 00 00
obj. CRC: c0 1b
Msg CRC: 26 5a
packet CRC: 85 f8