Device Info Packet: Difference between revisions
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}; | }; | ||
def get_structured_device_info_fields(): | |||
["Start Character", 0, 8 | return [ | ||
("Start Character", 0, 8), | |||
("Length", 8, 20), | |||
("No of Packets", 20, 25), | |||
("IMEI", 25, 75), | |||
("Packet Type", 75, 80), | |||
("Time", 80, 112), | |||
("Time Zone", 112, 119), | |||
("ICCID", 120, 279), | |||
("VID", 280, 311), | |||
("CELLULAR_MODULE_FV NAME", 312, 351), | |||
("CELLULAR_MODULE_FV VERSION", 352, 431), | |||
("CELLULAR_MODULE_FV BUILD NO", 432, 471), | |||
("MCU_APP_MODULE_FV NAME", 472, 511), | |||
("MCU_APP_MODULE_FV VERSION", 512, 591), | |||
("MCU_APP_MODULE_FV BUILD NO", 592, 631), | |||
("MCU_BTL_MODULE_FV NAME", 632, 671), | |||
("MCU_BTL_MODULE_FV VERSION", 672, 751), | |||
("MCU_BTL_MODULE_FV BUILD NO", 752, 791), | |||
("VN", 792, 871), | |||
("HWINFO", 872, 959), | |||
("End Character", 960, 968), | |||
("CRC", 968, 976) | |||
] | |||
for (const [label, start, end] of fields) { | for (const [label, start, end] of fields) { | ||
const val = bits.slice(start, end); | const val = bits.slice(start, end); | ||
Revision as of 11:57, 16 July 2025
| Field | Size (bits) | Bit Range | Description | Breakdown |
|---|---|---|---|---|
| Header (10 Bytes) | ||||
| Start byte | 8 | 0–7 | Starting character $ (ASCII value 36) | |
| Data length | 12 | 08–19 | 2-byte length of the data following the header | |
| Number of data packets | 5 | 20–24 | Number of packets (0–32) | 0–32 |
| IMEI | 50 | 25–74 | Unique device identifier | |
| Packet type | 5 | 75–79 | Type of packet | 00 - Device Info |
| Data | ||||
| Time | 32 | UTC Timestamp | UTC time in seconds | |
| Time Zone | 8 | Timezone in quarter-hours (e.g., 22 = +5:30), quarter-hour increment means each unit represents 15 minutes. The value 22 represents 22 quarter hours. Ranges from -48 to 56, negative timezone to 2's complement representation | eg: 22 (+5:30) → 22×15=330 minutes → 330÷60=5.5 hours → 5 hours and 30 minutes | |
| ICCID | 160 | 20 Bytes, Character string | 8991000903297069053F | |
| VID | 32 | 4 Bytes, Character string | TRAN | |
| CELLULAR_MODULE_FV NAME | 40 | 5 Bytes, Character string | TSPJT | |
| CELLULAR_MODULE_FV VERSION | 80 | 10 Bytes, Character string | XX.YY.ZZZZ | |
| CELLULAR_MODULE_FV BUILD NO | 40 | 5 Bytes, Character string | YYDDD | |
| MCU_APP_MODULE_FV NAME | 40 | 5 Bytes, Character string | TSPJT | |
| MCU_APP_MODULE_FV VERSION | 80 | 10 Bytes, Character string | XX.YY.ZZZZ | |
| MCU_APP_MODULE_FV BUILD NO | 40 | 5 Bytes, Character string | YYDDD | |
| MCU_BTL_MODULE_FV NAME | 40 | 5 Bytes, Character string | TSPJT | |
| MCU_BTL_MODULE_FV VERSION | 80 | 10 Bytes, Character string | XX.YY.ZZZZ | |
| MCU_BTL_MODULE_FV BUILD NO | 40 | 5 Bytes, Character string | YYDDD | |
| VN | 80 | 10 Bytes, Character string | KL07CP8490 | |
| HWINFO | 88 | 11 Bytes, Character string | PCB-0220-AB | |
| Tail(2 Bytes) | ||||
| End Character | 8 | 0–7 | Starting character * (ASCII value 42) | |
| CRC | 8 | 8–15 | 8-bit XOR CRC of data starting from $ to * (excluding $ and *) | |
Sample Packet
HEX : "2406e0e21aeb7abfd58068778b681638393931393530393132393633373932393833355452414e545344344720332e20302e202020342020202030545344345220332e20302e202020332020202030545344524220332e20302e202020312020202030585858585858585858585043422d303236312d41412ab9"
{"imei": 862942074896044,
"packet_type": 0, "no_packets": 1, "dateTime": 1752664936, "timezone": 22, "dateTime_tz": "2025-07-16 16:52:16", "iccid": "89919509129637929835", "vid": "TRAN", "cmfv_name": "TSD4G", "cmfv_version": " 3. 0. 4", "cmfv_build": " 0", "mcua_name": "TSD4R", "mcua_version": " 3. 0. 3", "mcua_build": " 0", "mcub_name": "TSDRB", "mcub_version": " 3. 0. 1", "mcub_build": " 0", "vn": "XXXXXXXXXX", "hwinfo_build": "PCB-0261-AA", "error_code": 0, "raw_data": }
Device Info Packet Parser
Parsed Output:
| Field | Value |
|---|