All Questions
11
questions
1
vote
0
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420
views
Orange Pi 5 CAN-bus issues
The bus-topology is like this. The CAN-bus has termination resistor at the inverter and in the Waveshare USB/CAN dongle.
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1
vote
1
answer
80
views
CANL and CANH are always active
I have a Linux Ubuntu based Machine and a esp32 which both contain a CAN interface. I am also using two CJMCU-230 transreciver. The Problem is that everytime when I connect the rx and tx of the Linux ...
- 11
0
votes
1
answer
407
views
CAN bus - voltage drop with new component
I am trying to connect a new board to my CAN bus and I have an issue with the voltage. The new board is a Raspi 4 and has a "RS485 CAN HAT" connected to it. To debug, I use can-utils.
When I ...
- 1
3
votes
1
answer
450
views
Beaglebone Black CAN bus overlay does not work
I'm trying to use the CAN1 bus on the Beaglebone Black board (the pins at P9.24 and P9.26).
First I tried the config-pin commands to change the pinmux mode from its ...
- 93
2
votes
0
answers
137
views
Configuring UART pins on Beaglebone Black for CAN Interface
I have been using a CAN/RS485 Cape for prototyping CAN control of a motor. I am now in the process of bringing up some custom hardware. I have a CAN Transceiver SN65HVD230D on this custom cape that is ...
- 21
0
votes
1
answer
375
views
What does it mean to send CAN messages at 10Hz or 100Hz? Is this configurable on Linux SocketCAN
I understand the meaning of message transfer speed, i.e. a theoretical maximum of 1Mbit/second, and the 8Mbit/second in the CAN FD.
That's essentially the rate at which bits are travelling on the ...
- 271
2
votes
0
answers
290
views
CAN bus traffic is destroyed for unknown reason
I am a bit stuck with connecting several STM32F405 with BeagleBone black via CAN bus.
Strange things happen when I connect 3 stm32 and 1 BB. I have checked that BB works perfectly with any ...
- 21
2
votes
2
answers
581
views
socketCAN vs OEM drivers
I have a Kvaser mPCIE card on my embedded Linux machine. Most standard Unix distributions come with a socketCAN driver module which takes care of any CAN devices present in the system, hence I can ...
- 701
0
votes
2
answers
152
views
How do you develop with CAN bus? [closed]
I'm pretty new to CAN bus stuff and I'm a bit confused about how should I start the development.
There are a lot of different USB-CAN interfaces, but are there "easy" ways to generate test traffic ...
- 149
0
votes
2
answers
1k
views
How do I specify whether to send a CAN bus message on low-speed or high-speed CAN?
I'm a student doing an internship and have to send a CAN bus message to a vehicle. I have no experience with the CAN bus, but it's part of my project so I'm trying to learn.
I have to use an i.MX 6 ...
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3
votes
2
answers
3k
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BeagleBone Black CAN Bus
My apologies if this is the wrong stack website for this question.
We plan to use a BeagleBone Black as the control computer for an electric car. The BBB handles, among other things, communicating ...
- 153