UTC time and date
From HackTheIBus
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Description
The UTC time and date messsage is sent from navigation computer NAVE. It represents the time in UTC (Universal Standard Time) that is received from the GPS satellites.
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Format
| Message code | 0x1F |
|---|---|
| Message length | 11 bytes |
| Data size | 8 bytes |
| Frequency | every 30 sec, or on request |
Data Byte 1 is 0x40 (Any ideas what this means?)
| Byte 1 | Byte 2 | Byte 3 | Byte 4 | Byte 5 | Byte 6 | Byte 7 | Byte 8 |
|---|---|---|---|---|---|---|---|
| 0x40 | hour | minute | day | ? | month | year (High) | year (Low) |
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Example
7F 0B 80 1F 40 19 48 03 00 06 20 08 D7
"NAVE --> IKE : UTC time & date: 19:48 03/06/2008"
| Meaning | NAVE | length | IKE | type | unknown | hour | minute | day | unused | month | year (high) | year(low) | checksum |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Value | 7F | 0B | 80 | 1F | 40 | 19 | 48 | 03 | 00 | 06 | 20 | 08 | D7 |
