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Trouble Applying Filters to Bus with Vector Interface

Open PyCoder9595 opened this issue 1 year ago • 4 comments

Attempting to filter bus to receive single PGN with vector interface. Filter is applied but still receiving other IDs when calling recv(). Not sure if issue with filter or bus declaration.

recv output with filter Filter and bus declaration

PyCoder9595 avatar Nov 01 '24 18:11 PyCoder9595

Try this:

filters = [{'can_id': 0xfff, 'can_mask': 0xfff, 'extended': False}, {'can_id': 0x18daf9aa, 'can_mask': 0x1fffffff, 'extended': True}]

zariiii9003 avatar Nov 03 '24 00:11 zariiii9003

Hello,

Unfortunately, I am still experiencing the same issue. Anything else to try? Few follow-up questions.

  1. Which attribute, "can_filters" or "receive_own_messages" takes precedence? If "receive_own_messages" is set to True, the bus will receive all of its own messages? Or only its messages that satisfy the filter? For me the filtering is not working for "receive_own_messages" set to either True or False.
  2. I am now using can Reader and Notifier with get_message(). The filters should work for both recv() and get_message()?

@.***

Sincerely, Tom Cowden

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Try this:

filters = [{'can_id': 0xfff, 'can_mask': 0xfff, 'extended': False}, {'can_id': 0x18daf9aa, 'can_mask': 0x1fffffff, 'extended': True}]

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PyCoder9595 avatar Nov 04 '24 14:11 PyCoder9595

Currently this is being tested with Vector CAN case 1640A.

PyCoder9595 avatar Nov 04 '24 22:11 PyCoder9595

Hi, I add the same issue with an MCP2515 controler, in my case, the filter was applied after the receive buffer so when reading, I was receiving old messages stored in the buffer before the filters were applied.

phospho666 avatar Nov 06 '24 12:11 phospho666