Convert a GENIVI's dlt file to json format.
This is a draft version and only supports log type for now.
Control, app trace and network trace payload is encoded in hexadecimal.
0..3 header pattern DLT1
4..7 4 bytes epoch time (little endian)
8..11 4 bytes microseconds (little endian)
12..15 4 bytes ECU ID
16 1 byte header type contains some configuration data
- use extended header
- MSB first
- with ECU ID
- with session ID
- with timestamp
- version number, 0x1
17 1 byte message counter
18..19 2 bytes lentgh of complete message without header
20..23 4 bytes ECU ID again
24..27 4 bytes session number
28..31 4 bytes timestamp since system start in 0.1 milliseconds
32 1 byte message info contains some configuration data too
- message type (log, app trace, network trace, control)
- message type info (debug, error, ...)
33 1 byte number of arguments
34..37 4 bytes application ID
38..41 4 bytes context id
0..4 4 bytes argument type
5..6 2 argument size
.... argument
$ python setup.py installFor a quick test, download testfile.dlt and run
$ dlt2json testfile.dlt
[
{
"000": {
"seconds": 1305029670,
"microSeconds": 828120,
"ecu": "ECU",
"sid": "N/A",
"timestamp": 979535935,
"app": "APP",
"ctx": "CON",
"type": "control",
"info": "request",
"args": 1,
"payload": "11 00 00 00 04 72 65 6d 6f"
}
},
...
{
"030": {
"seconds": 1305029677,
"microSeconds": 562582,
"ecu": "ECU",
"sid": "N/A",
"timestamp": "N/A",
"app": "LOG",
"ctx": "TES4",
"type": "log",
"info": "info",
"args": 2,
"payload": "0 Hello world"
}
},
...
{
"104": {
"seconds": 1305029689,
"microSeconds": 47104,
"ecu": "ECU",
"sid": "N/A",
"timestamp": "N/A",
"app": "N/A",
"ctx": "N/A",
"type": "N/A",
"info": "N/A",
"args": "N/A",
"payload": "91 01 00 00 1a 00 00 00 0c 00 48 65 6c 6c 6f 20 77 6f 72 6c 64 00"
}
}
]