CAN-FD with Vector

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I am trying to send a CAN-FD frame using Vector Device but have some trouble figuring it out.

I am able to send it over Classic CAN with different BaudRates.

here's what I tried for CAN-FD:

# create a bus instance

# many other interfaces are supported as well (see below)

interface = 'vector'

channel = 0

baud = 1000 * 33.333

# baud = 1000 * 25

data_baud = 1000 * 500

bus = can.Bus(

    interface=interface, 

    channel=channel, 

    bitrate=baud, 

    data_bitrate=data_baud, 

    receive_own_messages=True,

    fd=True

)

# send a message

message = can.Message(arbitration_id=0x555, is_extended_id=False,dlc=8,is_fd=True,bitrate_switch=True,

                      data=[0x55, 0x55, 0xB9, 0x07, 0x10, 0x00, 0x54, 0x05])

bus.send(message, timeout=0.2)

the above code generates an error:

VectorError Traceback (most recent call last) <ipython-input-28-f846ed15bb5a> in <module> 2 message = can.Message(arbitration_id=0x555, is_extended_id=False,dlc=8,is_fd=True,bitrate_switch=True, 3 data=[0x55, 0x55, 0xB9, 0x07, 0x10, 0x00, 0x54, 0x05]) ----> 4 bus.send(message, timeout=0.2) 5 print(message) 6 msg = bus.recv() ~\jupyter_notebooks\python-can-develop\can\interfaces\vector\canlib.py in send(self, msg, timeout) 438 XLcanTxEvent.tagData.canMsg.data[idx] = value 439 vxlapi.xlCanTransmitEx( --> 440 self.port_handle, mask, message_count, MsgCntSent, XLcanTxEvent 441 ) 442 ~\jupyter_notebooks\python-can-develop\can\interfaces\vector\vxlapi.py in check_status(result, function, arguments) 274 def check_status(result, function, arguments): 275 if result > 0: --> 276 raise VectorError(result, xlGetErrorString(result).decode(), function.__name__) 277 return result 278 VectorError: xlCanTransmitEx failed (XL_ERR_INVALID_FDFLAG_MODE20)

If I remove the flag : fd=True, from the same code
I don't get any error and message frame is :

Timestamp: 0.000000 ID: 0555 S F BS DLC: 8 55 55 b9 07 10 00 54 05

I need help with configuring the CAN-FD Message and BUS

[Christian Sandberg]

Do you have some other application connected to the same channel? Has that been configured for CAN-FD? One possible reason that the channel has not been initialized with CAN-FD support is if python-can does not get init access.

Also, the bitrates seem very slow for CAN-FD. Usually the data bitrate is >= 1 Mbit/s for example. Not sure how the driver handles this. And it also seems that Vector requires bit timing parameters to be set explicitly for CAN-FD. See the documentation for xlCanFdSetConfiguration in the vxlapi docs and python-can docs.

[SERIDJ Mohammed]

hi

  Thank you for your message, but i am really busy and won't be able to work for you. Sorry

  

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