如何使用Python-CAN查看CAN网络的错误帧
如何使用Python-CAN查看CAN网络的错误帧
提问于 2019-08-08 03:10:50
我写了下面的程序，
can = CAN("can0", bitrate=50000, listen_only=True, error_reporting=True)
while True:
msg = can.recv()
print "Msg: ", msg但它只显示标准S或扩展X标志，即使当我在Terminal中运行命令来检查network activity时，我可以看到错误计数器正在增加。
import can
import CAN
import time
import logging
#logging.basicConfig(level=logging.DEBUG)
print("Initializing Listener")
can1 = CAN('can0', bitrate=500000, listen_only=True, err_reporting=True)
#print "Bus is : ", can1.bus.get_can_bus()
can1.bus.set_filters(can_filters=[{"can_mask":0x7FF, "can_id":0x00000000, "extended":False}])
CAN_ERR_FLAG = 0x20000000
while 1:
msg = can1.recv()
if (msg.arbitration_id & CAN_ERR_FLAG) == CAN_ERR_FLAG:
print "Can Error Caught"
elif msg.is_error_frame:
print "Finally Error Frame"如何读取can总线的错误帧？使用commnad candump -e any,0:0,#FFFFFFFF时一切正常
回答 1
Stack Overflow用户
发布于 2019-10-15 23:49:10
使用Python -3
import binascii
channel_name = "vcan0"
socketID = socket.socket(socket.AF_CAN, socket.SOCK_RAW, socket.CAN_RAW)
# socketID.setsockopt(socket.SOL_CAN_RAW, socket.CAN_RAW_ERR_FILTER, 0x1FFFFFFF)
error = socketID.bind((channel_name,))
print(binascii.hexlify(socketID.recv(32)))页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/57400907
复制相关文章
相似问题
腾讯云开发者
