Rev 746 | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | SVN | RSS feed
| Rev 746 | Rev 752 | ||
|---|---|---|---|
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| 2 | # |
2 | # |
| 3 | # This class represents a can packet which should be |
3 | # This class represents a can packet which should be |
| 4 | # identifiable by its type and contents |
4 | # identifiable by its type and contents |
| 5 | # |
5 | # |
| 6 | ########################################################### |
6 | ########################################################### |
| - | 7 | import logging as log |
|
| 7 | 8 | ||
| 8 | class CanPkt: |
9 | class CanPkt: |
| 9 | 10 | ||
| 10 | STANDARD_ID_MASK = 0x1FF |
11 | STANDARD_ID_MASK = 0x1FF |
| 11 | EXTENDED_ID_MASK = 0x1FFFFFFF |
12 | EXTENDED_ID_MASK = 0x1FFFFFFF |
| Line 42... | Line 43... | ||
| 42 | return (strpkt + bytestrings) |
43 | return (strpkt + bytestrings) |
| 43 | 44 | ||
| 44 | @staticmethod |
45 | @staticmethod |
| 45 | def stringToCanPkt(self, str): |
46 | def stringToCanPkt(self, str): |
| 46 | """ Converts can message string to CanPkt class """ |
47 | """ Converts can message string to CanPkt class """ |
| - | 48 | if len(str) > 40: |
|
| - | 49 | str = str[:40] |
|
| - | 50 | log.debug('WARNING: Oversized string packet truncated to: ' + str) |
|
| - | 51 | ||
| 47 | strbyteslist = str.split(' ') |
52 | strbyteslist = str.split(' ') |
| 48 | nodeid = int('0x'+strbyteslist[1], 16) |
53 | nodeid = int('0x'+strbyteslist[1], 16) |
| 49 | intvalues = [int(val, 16) for val in strbyteslist[2:]] |
54 | intvalues = [int(val, 16) for val in strbyteslist[2:]] |
| 50 | extended = (intvalues[0] == 1) |
55 | extended = (intvalues[0] == 1) |
| 51 | remote = (intvalues[1] == 1) |
56 | remote = (intvalues[1] == 1) |
| 52 | pkt = CanPkt(nodeid, intvalues[2:], extended, remote) |
57 | pkt = CanPkt(nodeid, intvalues[2:], extended, remote) |
| 53 | return pkt |
58 | return pkt |
| 54 | - | ||
| 55 | 59 | ||