Globalstar ST100 - Proprietary Motion Activated Track Command Format

39ST100 User Manual v1 Confidential & Proprietary Information
8545-0194-01 v1.0
Example Command: AA 0A 34 00 0A AA BB CC 3C 94
Where:
• Period : 0x000A (10 minute intervals)
• Payload Byte 0: 0xAA
• Payload Byte 7: 0xBB
• Payload Byte 8: 0xCC
Example Response: AA 05 30 5A F5
Example Payload: 0xAA2B4856BFF032BBCC
Where: 2B4856 is the 24-bit latitude 30.433051586151 (North)
BFF032 is the 24-bit longitude -90.086817741394 (West)
See section 4.6: “24 bit location format” for documentation of the encoding/decoding of Globalstar on-air location data.
4.2.2.15. “Update Proprietary Track Data” command
This command is used to change the user programmable data in a proprietary track message. If a proprietary track session is
not in progress, it is ACK’d but will do nothing.
BYTE BITS PARAMETER DESCRIPTION
0 0 - 7 Leader Always a value of 0xAA
1 0 - 7 Length 0x5
2 0 - 7 Command Code 0x30 = ACK or 0xFF = NAK
3-4 0 - 15 CRC
INITIATE PROPRIETARY TRACK RESPONSE
BYTE BITS PARAMETER DESCRIPTION
0 0 - 7 Leader Always a value of 0xAA
1 0 - 7 Length 0x08
2 0 - 7 Command Code 0x31 = Update proprietary track.
3 0 - 7 Byte 0 value The value to transmit as byte 0
4 0 - 7 Byte 7 value The value to transmit as byte 7
5 0 - 7 Byte 8 value The value to transmit as byte 8
6-7 0 - 15 CRC
UPDATE PROPRIETARY TRACK DATA COMMAND FORMAT