hardbyte / hardbyte/python-can

SeeedBus: Allow setting hardware filter/mask during Bus Init

Offen
#1,995 2 Kommentare 0 Reaktionen 0 zugewiesene Personen Auf GitHub ansehen
enhancement
Vorherrschende Sprache
Python
Sterne
1.6k
Forks
697
PR-Merge-Kennzahlen
Keine gemergten PRs in 30 T.

Beschreibung

## Main Problem
I don't like that the SeeedBus interface does not allow for the configuration of the hardware acceptance filter and mask during the bus initialization.

My use case involves a bootloader flasher client that communicates with a device over the CAN bus. The client sends a message with one CAN ID and needs to listen only for a response on another specific CAN ID. To achieve this efficiently, I need to use the hardware filter. The current implementation forces me to create the bus object, then manually change its internal attributes (filter_id, mask_id), and then re-call the internal init_frame() method. This workflow is not intuitive and feels like a workaround.

## Current Alternative
The only alternative at the moment is to manually re-configure the bus after it has been created. This involves the following steps:

```Python

import struct

# 1. Create the bus with default (disabled) filters
bus = can.interface.Bus(interface='seeedstudio', channel='/dev/ttyUSB0')

# 2. Manually overwrite the internal attributes
bus.filter_id = struct.pack('

Beitragsleitfaden

Beitragsleitfaden öffnen

Bewertung

Dieses Issue wurde noch nicht bewertet.

Neue Issues direkt in Ihr Postfach

Eine kurze Übersicht über anfängerfreundliche GitHub-Issues.