u-blox ZED-F9P, Описание интерфейса

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u-blox ZED-F9P Interface Description - Manual
Advance Information
5.16 UBX-SEC (0x27)
Security Feature Messages
Messages in the SEC class are used for security features of the receiver.
5.16.1 UBX-SEC-SIGN (0x27 0x01)
5.16.1.1 Signature of a previous message
Message
UBX-SEC-SIGN
Description
Signature of a previous message
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Output
Comment
The message is the signature of a previously sent message. The signature is generated with
a hash using the SHA-256 algorithm with the programmed seeds.
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x27 0x01 40
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 -
version
- Message version (0x01 for this version)
1 U1[3] -
reserved1
- Reserved
4 U1 -
classID
- Class ID of the referring message
5 U1 -
messageID
- Message ID of the referring message
6 U2 -
checksum
- UBX Checksum of the referring message
8 U1[32] -
hash
- SHA-256 hash of the referring message
5.16.2 UBX-SEC-UNIQID (0x27 0x03)
5.16.2.1 Unique Chip ID
Message
UBX-SEC-UNIQID
Description
Unique Chip ID
Firmware
Supported on:
•
u-blox 9 with protocol version 27
Type
Output
Comment
This message is used to retrieve a unique chip identifier (40 bits, 5 bytes).
Header Class ID Length (Bytes) Payload Checksum
Message Structure
0xB5 0x62 0x27 0x03 9
see below
CK_A CK_B
Payload Contents:
Byte Offset Number
Format
Scaling Name Unit Description
0 U1 -
version
- Message version (0x01 for this version)
1 U1[3] -
reserved1
- Reserved
4 U1[5] -
uniqueId
- Unique chip ID
UBX-18010854 - R04 Advance Information Page 181 of 259