Ip link show can bitrate.
I am trying to set the bit-rate in i.
Ip link show can bitrate can0 can dump the send data. 866 tq 133 prop-seg 6 phase-seg1 6 phase-seg2 2 sjw 1 # Check if the device is registered on not root@j7-evm:~# dmesg | grep can [ 10. Every time I plug it to the computer, I must manually run: sudo ip link set can0 type can bitrate 500000 sudo ip link set up can0 I could add those lines to my bashrc, but that would not work if I unplug and replug the device in the same session. It is at least a "useless use of grep". just a question here, for other CAN, what bitrate shall be set? Top. Hello, We have an issue where we try to connect the Jetson TX2 to an existing CAN network, which already has dozens of working devices running at 250 kbps. 75 dbitrate 8000000 dsample-point 0. import can import time import sys. Receiver Side: ip link set can0 down. The solution was to adjust the sample-point and the dsample-point parameters when setting up the CAN interface: sudo ip link set can1 up type can bitrate 500000 dbitrate 5000000 restart-ms 1000 berr-reporting on fd on sample-point . The state change ERROR-ACTIVE to ERROR-PASSIVE when can-bus is received first packet To resolve this problem I reset can-bus driver. I make the CAN Interface available using. I used following steps to turn on the can0 interface: ip link set can0 down ip link set can0 type can bitrate 100000 ip link set can0 up I can observe the can0 was working as metioned in xilinx confluence root@OpenWrt:/ # ip -details -statistic link show can0 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 ip link set can0 type can bitrate 125000. I followed these instructions. 8 fd on 2) ip link set can0 up type can bitrate 1000000 sample-point 0. Sep 2010, 13:00. When my board is booted, can-bus receive data . Feb 2020, 16:36 Nice! but’ ip link set can0 type can bitrate 500000’–>cannot find device “can0 @Phoenix:~$ ip -d -s link show can0 4: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 can state ERROR-ACTIVE restart-ms 0 To configure bit-timing parameters use the program ip. 8. 498422] m_can_platform 20701000. then open one cmd line: candump can0 & cansend can0 123#5a. sudo ip link set can0 type can bitrate 125000. 299 bsp L4T 32. sudo ip link set can0 down sudo ip link set can0 type can restart-ms 100 sudo ip link set can0 up. 128 candump can0 does not show data #298. import the library. The virtual CAN driver (vcan)# The virtual CAN interfaces allow the transmission and reception of CAN frames without real CAN controller hardware. Feb 2020, 15:31. The AXI ip link set can0 up type can bitrate 125000. 75 \ dbitrate 4000000 dsample-point 0. You can use the open source can-utils package to get information about SocketCAN. 128 sjw 1. Setting the bitrate can also be done at the same time, for example to enable an existing can0 interface with a bitrate of 1MB: ip -details -statistics link show vcan0. jetpack 4. Mx6 processor in android. The command used to set the bitrate is given below: #ip link set can0 Anyway, you can try it. Checking link state (checking bitrate/errors/packets) $ . Virtual CAN network devices are usually named ‘vcanX’, like vcan0 vcan1 vcan2. I did same thing as you said. cansend can0 123#DEADBEEF [ 170. 4: group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state BUS-OFF restart-ms 100 bitrate 100000 sample-point 0. sudo modprobe can sudo modprobe can-raw sudo modprobe mttcan sudo ip link set can0 type can bitrate 250000 sudo ip link set up can0 It now shows up in ifconfig and works fine in my python code. Checking net device state $ ifconfig can0 Binding Tests: Microblaze: a. However, the timeout function doesn't seem to force a return from the command. I faced the problem is can-bus state. Best Regards Marvin---Marvin Heidemann PEAK-Support Team. Open CAN controller; sudo ip link set up can0. and bring your Code: Select all. $ . /can_setup. With the pre-installed python-can library you can easily access the interface from Python scripts. In this command, bitrate can be any valid CAN bitrate for stand CAN. but when i use "dmesg | fgrep -i can" it shows that the can bit Hi, I modified mttcan "status =okay "of tegra194-soc-can. on the actual CAN bus in my car - no results with candump command issued. txt. If output is empty, then bitrate is incorrect. log & # cansend can0 123#1122334455667788 # cat can1. This is now the standard control mechanism for networking I'm attempting to use the iproute2 tools to configure my can0 interface and configure a bitrate of 125k. 8 sjw 1. I could not find the bitrate in /sys/ either. 1 are present. log // it should have data . 1024 brp-inc 1 clock 48000000 numtxqueues 1 But when I use candump any or candump can0, I cannot see any CAN data in the terminal window. 75 dbitrate 5000000 dsample-point 0. I bring them both up with the following sequence: # ip link set can0 type can bitrate 1000000 dbitrate 2000000 fd on # ip link set can0 up # ip link set can1 type can bitrate 1000000 dbitrate 2000000 fd on # ip link set can1 up ip link set can0 up type can bitrate 500000 dbitrate 2000000 fd on fd-non-iso on. Power on CAN hardware ip link set can0 type can bitrate 125000 triple-sampling on ifconfig can0 up Send simple test packet. You switched accounts on another tab or window. This page gives an overview of the bare-metal driver support for the Xilinx® LogiCORE™ IP 10G/25G High Speed Ethernet Subsystem and UXSGMII soft IP. ip -det link show can0 | awk '/bitrate/ {print $1}'. You set the bitrate when opening the interface with the can. ip -details -statistics link show vcan0 Network Interface Removal Hi Charles, Could you try the below command with dbitrate field as well: ip link set can0 type can bitrate 500000 dbitrate 500000 fd on. ip link set can 0 up. 3 I am developing can-bus application. I'm using SocketCAN on my system. 16 tseg2 2. 文章浏览阅读1w次。CAN总线配置在Linux系统中，CAN总线接口设备作为网络设备被系统进行统一管理。在控制台下， CAN总线的配置和以太网的配置使用相同的命令。在控制台上输入命令：ifconfig –a 可以得到以下结果：can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00_ip link set can0 type can % ip -details link show type can 7: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 500000 sample-point 0. Let me know, if it had worked, we can update it as an answer! Comment by roslearner on 2019-11-04: No, it's not working. An example would be helpful. Caution . With the correct overlay name of "mcp2515-can0" this shouldn't be a problem, but in case you do run into a similar situation you can split parameters onto separate lines at arbitrary points like this if This may not be related, but I had a similar experience; tx buffer being full. link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00. BTW: SocketCAN related questions should be asked in the Linux section of our How to set the above params in the way ip link expects. I don't if there's CAN support for NM. Once you bring up the can0 device, you should be able to use the tools from can-utils on this interface. dtsi ,as well as modified “status = disabled” of clocks-init node. can can0: bus-off. 8") nominal bitrate and data bitrate are setup the same on both – roflcopta. This case was reproduceable when the target devices are left disconnected for a while where the socket can device periodically tries to check the devices via sending a packet. dtparam=spi=on dtoverlay=mcp2515-can0,oscillator=8000000,interrupt=25. As soon as we bring the CAN bus online by typing: sudo ip link set can0 type can bitrate 250000 sudo ip link set up can0 We start to see periodic errors on the CAN bus, which interferes with comunication from The CAN config details after trying to Tx/Rx CAN messages. Miscellaneous Information About OSS SocketCAN Tools. Check the status of CAN controller; ip -s -d link show As far as I know netplan is some kind of a config file generator for different backends like NetworkManager or sytsemd-networkd. 9. The command used to set the bitrate is given below: #ip link set can0 sudo ip link set can0 type can bitrate 500000 sudo ip link set up can1. Once the pi has rebooted you can run the ip -s link show can0 command to check your network status. The same doesn't work without loopback, i. -> Also candump shows packets. sudo ip link set can0 type can restart-ms 100 sudo ip link set can1 type can restart-ms 100. The key thing to note is that the network is UP for now. g. bring the connection up: sudo ip link set up can0. We have created sm I would like to be able to capture the berr-counter values in a shell script. interface. I'm currently setting the baudrate of my can0 with ip link: /sbin/ip link set can0 up type can bitrate 250000. You can use can_get_bittiming () to get the set bitrate. /ip -d link show can0 8. for example ip link add dev can0 type can ip link set can0 type can bitrate 1000000 ip link set can0 up ip link show type can Raspberry Pi CAN HAT Extensions. I'm starting it via os. in case of short-circuit between CAN_H, CAN_L Live demo, $ ip -det -stat link show can0 Recover from bus-off: $ ip link set can0 type can restart ~ $ sudo ip link set can0 type can bitrate 500000 Caution The above command only works for interfaces that already exist (such as a physical can0 that has been created when a CAN-to-USB dongle was connected). Qt Creator (Community Version is okay) brings everything you need; except for the PCAN libraries. Yes, configuting the MCP2515 in loopback mode using sudo ip link set can0 up type can bitrate 125000 loopback on works fine with two terminals open, one that does a cansend and the other with candump running. Checking link state (checking bitrate/errors/packets) ~# ip -d -s link show can3 5: can3: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN mode DEFAULT qlen 10 link/can promiscuity 0 can <LOOPBACK> state ERROR-ACTIVE /sbin/ip link set can0 up type can bitrate 500000. txt and reboot dtparam=spi=on dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=25 dtoverlay=spi-bcm2835-overlay #create the can interface on divice can0 with a bitrate at 500 kbps sudo /sbin/ip link set can0 up type can bitrate 500000 Hello, Were are trying to configure a jetson nx with a can transceiver sn65hvd230. Wireshark. 850 tq 500 prop-seg 8 phase-seg1 8 phase-seg2 3 sjw 1 mcp251x: tseg1 3. Apparently CAN FD is more sensitive to these parameters. 16 tseg2 1. 0 and spidev0. Print interface info: ifconfig ifconfig can0. candump - prints received CAN frames to the console; cansend - sends a specific CAN # ip -d link show dev can1 5: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 sudo ip link set can1 up type can bitrate 500000 dbitrate 1000000 berr-reporting on fd on sudo cansend can1 123# #1abcdabcd. Please report back to us regarding this. 0xe0008fff The operation status was checked with FlexCan set as follows using linux socket can. 4 brp 1. I can do this using IP Link through the terminal with: ip link set can0 up type can bitrate 500000 How can I achieve this using C. According to the Cerbo manual: $ cangen can0 # runs fine, now short CAN-H/CAN-L write: No buffer space available # stop shorting $ sudo ip -d -s link show can0 12: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can <BERR-REPORTING> state #ip -details -statistics link show can0. Supported boards: Boards with a Microchip MCP251x based CAN chip, such as Waveshare CAN HAT or PiCAN 2; Verify driver is loaded: sudo ip link set can0 type can bitrate 1000000 sudo ip link set up can0 txqueuelen 1024 sudo ip link show can0 building on windows. Network Interface Removal. can you should set the bitrate to the value of your CAN nodes with which you will communicate. I've looked around the iplink code on GitHub but I can't seem to work it out. 478830] NET: Registered protocol family 29 [ 170. we want to check CAN TRANSCEIVER which is connected in loopback i. dtb clock@can. Post by walkerjitzu » Wed 5. Re: CAN interface not showing up. 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000. Top. If it's NM, you can probably hmm the terminal returns "RTNETLINK answers: Operation not supported" But surprisingly when i just run "sudo ip link set can0 type can bitrate 500000" it is able to set the can device bitrate. Can & Lynx Ion BMS (250 kbit/s)", "CAN-bus BMS (500 kbit/s)"), if I find it I can edit it to 125Kbit/s. 875 tq 125 prop-seg 6 phase-seg1 7 phase-seg2 2 sjw 1 gs_usb: tseg1 1. 390506] m_can_platform 2701000. Any other bitrate is not validated on Tegra MTTCAN driver. The above command only works for interfaces that already exist The line is also a bit long - there is a limit of just over 80 characters per line. I can use linux command like ip -details -statistics link show can0 with following result: 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 can state *ERROR-ACTIVE (berr sudo ip link set can0 up type can bitrate 500000 listen-only off $ sudo ip link set can0 type can bitrate 500000 $ sudo ip link set up can0. ~ $ ip link show. 490795] can: raw protocol root@am62xx-evm:~# [ 170. ip -d -s link show can0; Statistics: cat /proc/net/can/stats; Set bitrate: ip link set can0 down ip link set can0 type can bitrate 500000; Test mode - loopback mode: root@petalinux_testSPI:/# ip link set can0 down root@petalinux_testSPI:/# ip link set can0 up IPv6: ADDRCONF(NETDEV_CHANGE): can0: link becomes ready root@petalinux_testSPI:/# cansend can0 111#1122334455667788 root@petalinux_testSPI:/# ip -d -s link show can0 2: can0: <NO-CARRIER,NOARP,UP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT root@stm32mp1:~# ip link set can1 type can bitrate 500000 root@stm32mp1:~# ip link set up can1 root@stm32mp1:~# ip -details link show can1 3: can1: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 can state ERROR-ACTIVE (berr-counter tx 0 rx 0) I want to verify the CAN interfaces on my embedded system. e CAN0_H is connected to CAN1_H,CAN0_L is connected to CAN1_L,CAN0_GND is connected to CAN1_GND. 700698] m_can 4400e000. Can2USB firmware for Canable/U2C/UTOC boards # ip link set can0 up type can bitrate 500000 berr-reporting on. I setup the CAN interface with: sudo modprobe can sudo modprobe can_raw sudo modprobe mttcan sudo ip link set can0 type can bitrate 500000 sudo ip link set up can0 you can now reboot the pi with ` sudo reboot ` Test the network. 810563] m_can_platform 2721000. /ip link set can0 type can bitrate 125000 dbitrate 8000000 fd on looopback on 7. sudo modprobe can sudo modprobe can_raw sudo modprobe mttcan sudo ip link set can0 type can bitrate 500000 loopback on sudo ip link set can1 type can bitrate 500000 loopback on. Hi, I am currently in the process of putting the CAN driver for my AXI CAN IP cores into operation. To create a virtual can interface using socketcan run the I've been digging through the source code for a couple hours now, trying to figure out how to update the bitrate for a can link (trying to do the equivalent of "ip link set can1 up type can bitrate 250000" via a golang app), but I can't find any combination of public methods that will let me modify the bitrate -- it appears that it needs to be added internally to link_linux. Does anyone now why? Screenshot is attached. sudo ip link set up can1. If I use the standard commands: -ip link set canX type can bitrate 500000 -ip link set canX up the CAN channel is still in SLEEPING state. Command line tools. 1) ip link set can0 up type can bitrate 500000 sample-point 0. We have performed the following states: $ sudo busybox devmem 0x0c303000 32 0x0000c400 $ sudo busybox devmem 0x0c303008 32 0x0000c458 $ sudo modprobe can $ sudo modprobe can-raw $ sudo modprobe mttcan $ sudo ip link set can0 up type can bitrate 500000 can0 With the can0 SocketCAN network interface configured, we can continue with the last step, which is bringing it in the UP state:. To get a detailed status of the SocketCAN link, use the following command line: ip -details link show can0 2: can0: <NOARP,ECHO> mtu 72 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 can <FD> state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 996078 sample-point 0. local file. Re: problem in ip link sudo ip link set can0 up type can bitrate 250000 Gives the error: Cannot find device "can0" lsmod | grep peak shows this: then proceed with ip link to set up the device. When I do sudo ip link set can0 up type can bitrate 125000, I get a response as RTNETLINK answers: Operation not supported. use ip -d link show can0 cmd You signed in with another tab or window. Note: 125000(125 Kbps), 250000(250 Kbps), 500000(500 Kbps) and 1000000(1Mbps) are supported bitrates for Tegra MTTCAN driver. sudo ip link set down can1 sudo ip link set can0 type can bitrate 500000 sudo ip link set can1 type can bitrate 500000. e. I tested the CAN interface throu sudo ip link set can0 type can bitrate 250000 # Automatically reset the CAN controller # after 100 milliseconds bus-off: sudo ip link set can0 type can restart-ms 100 # Show information about CAN interface can0 ip -det -stat link show can0. 875 tq 12 prop-seg 69 phase-seg1 70 phase-seg2 20 sjw 1 pcan_usb_pro_fd: tseg1 1. During Bullseye, we rolled out the use of the NetworkManager network controller as an option which could be selected in raspi-config. M. create a bus instance many other interfaces are supported sudo ip link set can0 type can bitrate 500000. I have a multi node setup where my RaspberryPi is showing all traffic correctly via candump via an MCP2515 from 2 other nodes. 8 dsample-point . I have analyzed MISO MOSI and SCK with a logic analyzer and I have the same problem in setting bitrate in CAN using FlexCAN driver. Cerbo responds: RTNETLINK answers: Device or resource busy. ~ $ sudo ip link set can0 type can bitrate 500000. Confirm the status of CAN with ip; ip -details -statistics link show can0 ip I am trying to set the bit-rate in i. can1 123 [8] 11 22 33 44 55 66 77 88 - FD CAN mode: # ip link set can0 type can bitrate 500000 dbitrate 2000000 fd on # ip link set can0 up 3. 7. gs_usb_fd lsmod | grep can can_dev 32768 2 gs_usb_fd,gs_usb gs_usb_fd sudo ip link set can0 up type can bitrate 500000 dbitrate 8000000 restart-ms 1000 berr-reporting on fd on RTNETLINK Dear NXP Support Team, We have ls1028a based custom board in which CAN TRANSCEIVER is connected directly to processor. 8 fd on $ ip -details link show can0 5: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 72 qdisc pfifo_fast state UNKNOWN \ mode DEFAULT group default qlen 10 link/can promiscuity 0 I am trying to set the bit-rate in i. sh #!/bin/bash ip link set can0 up type can bitrate 1000000 ip link set can1 up type can bitrate 1000000 . Configure CAN controller as loopback test mode; sudo ip link set can0 type can bitrate 1000000 loopback on. I received the next answer: ip: either "dev" is duplicate, or "type" is garbage. You signed out in another tab or window. With CAN FD you can specify two different baud rates, one for arbitration and the other data bit rate. sudo ip link set can0 up type can bitrate 500000. 866 tq can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state ERROR-ACTIVE restart-ms 0 bitrate 500000 sample-point 0. Here's the result of ip -det link show can0, $ ip link set can0 type can bitrate 125000 Set interface up and running: $ ifconfig can0 up Common pitfall: Standard distrokernels do not enable CONFIG_CAN_CALC_BITTIMING $ ip -det -stat link show can0 9: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UNKNOWN qlen 10 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company $ . go to I'm currently using a peak can interface to read can traffic. When I try to send sudo ip link set can0 up bitrate 500000 the response is RTNETLINK answers: Operation not supported. I tried adding it manually: modprobe can ip link add can0 type can but when I try to bring the interface up again, the command hangs and I have to reboot the Pi in order to use it, because most of other unrelated commands hang as well. 3 linux-tegra 4. correct binding with XILINX_CAN e0008000. walkerjitzu Posts: 6 Joined: Wed 5. system("sudo /sbin/ip link set can0 up type can bitrate 500000 dbitrate 2000000 fd on sample-point . sudo ip link set can1 type can bitrate 1000000 loopback on. Bus() constructor. Control with Python and C/C++. To remove the network interface: sudo ip link del vcan0. So you first need to add CAN support to the backend you're using. sudo ip link set up can0; To verify that the can0 SocketCAN network interface is now in the UP sudo ip link set can0 up type can bitrate 500000. A detailed CAN state can be retrieved using the -detail option: # ip -details link show can0 2: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 # ip link set can1 type can bitrate 100000 # ip link set can1 up // send message using can-utils tool # candump can1 > can1. Maidhof Support Posts: 1691 Joined: Wed 22. and add 0x5e in tegra194-a02-bpmp-p2888-a04. Is there a way to set the CAN interface bitrate programmatically and not from the command line. Code: Select all. After compiling, I can see can0 via ifconfig. mcan: m_can device registered (irq=21, version=32) [ 10. systemd-networkd doesn't have support for CAN yet, although there's some work in progress code for systemd. Printing SocketCAN information [edit | edit source]. Since I am working with aws greengrass I need the device to show up in /dev/ in order to access it. 128 I posted a question in the Armbian forum to see if anyone there can elucidate the distro specific take This RaspberryPi News Page (from October 11, 2023) states:. . 256 tseg2 1. ip link set can0 up type can bitrate 500000 saying : cannot find device can0. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Library : CAN utils. 4 brp My board is jetson xavier agxi. I can view the values with: ip -det link show can0 which gives: 2: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000 link/can promiscuity 0 can state STOPPED (berr-counter tx 144 rx 128) restart-ms 100 bitrate 125000 sample-point 0. When i set the ip link can0 set type can bitrate 500000 dbitrate 2000000 fd on the params computed are as below 9: e. Thank you. Reload to refresh your session. 8 fd on Setting the bitrate can also be done at the same time, for example to enable an existing can0 interface with a bitrate of 1MB: sudo ip link set can0 up type can bitrate 1000000. I am using iproute2 utility to set bitrate for CAN controller. $ ls /dev/ shows me that spidev0. ip link set % ip -details link show type can 7: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 minmtu 0 maxmtu 0 can state STOPPED (berr-counter tx 0 rx 0) restart-ms 0 bitrate 500000 sample-point 0. My second approach was to try to do something with ip -details -statistics link show can0. root@mx28evk ~$ ip link set can0 type can bitrate 125000 RTNETLINK answers: Operation not supported root@mx28evk ~$ ip link set can0 type can bitrate 125000 RTNETLINK answers: Operation not supported Example configuring 500 kbit/s arbitration bitrate and 4 Mbit/s data bitrate: $ ip link set can0 up type can bitrate 500000 sample-point 0. >If I deactivate the channel with "ip link set canX down" and activate it again with Hi,All. I'm just wondering how to do the same from within C/C++? I would like to programmatically set a CAN device through C. For C/C++ use the ip link ls. sudo ip -d -s link show can0 sudo ip -d -s link show can1 (above messages show a proper connection established) Pin connection - CAN0_TX - CAN1_TX AND CAN0_RX - CAN1_RX ( I tried the other way as well) candump can1 cansend can0 123#abcdabcd. 6. candump can0, CAN0 can receive data from CAN OE. When I do sudo ip link add dev can0 type can, I do get a positive response as RTNETLINK answers: File exists. Hi Joey, I see you are not setting the interface up. 474360] can: controller area network core [ 170. 745 #ip link set can0 type can bitrate 500000 . $ ip -d -s link show can0 $ ip -d -s link show can1. # sudo ip link set can1 type can bitrate sudo ip link set can0 up type can bitrate 500000 #cangen can0 -v #candump can0 exit 0 ##### python code. mcan: m_can device registered (irq=23, version=32) # Put the controller in internal loopback mode root@j7-evm:~# ip link set can0 type can bitrate sudo ip link set can1 type can bitrate 1000000. Try this maybe before you give your command. Useful commands. #added this in /boot/config. # ip -details link show can1 3: can1: mtu 16 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 10 link/can promiscuity 0 can state ERROR-WARNING (berr-counter tx 0 rx 131) restart-ms 100 bitrate 500000 sample-point 0. /boot/config. Closed Niki2896 opened this issue Jun 2, 2021 · 10 comments Closed $ sudo apt-get install can-utils $ sudo ip link set can0 up type can bitrate 500000 $ sudo ip link set can0 up (Adapter control LED signals that it is now connected (1Hz blinking)) $ ifconifg (can0 is displayed) The CAN signals are then connected to the motor driver and connected the output of the driver (another CAN port) to another motor driver to act as a second node to form a CAN network. Set up a listener and send it in the background (if you use server version and you have You can configure and enable the SocketCAN interface in the same command line: ip link set can0 up type can bitrate 1000000 dbitrate 2000000 fd on [ 78. Does anyone know where I can find the can configuration profile files? (eg "VE. It has two can ports: can0 and can1. sudo ip link set up can0 sudo ip link set up can1. You should see a line like the below in the results. Could you please send me in the right direction or even provide an example? $ . The socket-CAN tools include the cansend utility: cansend <device> <can_frame> where the device is the network interface name, typically can0, and a CAN frame is in the format: <can_id>#{R|data} root@79940fe:/# ip link set can0 type can bitrate 250000 root@79940fe:/# ip link set can0 up root@79940fe:/# ip link show can0 2: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc fq_codel state UNKNOWN mode DEFAULT group default qlen 10 link/can-> Seems to work. you can edit this command in the /etc/rc. Can you please run the below command: # Check if the device is registered on not dmesg | grep can # Set bitrate and loopback mode ip link set can0 type can bitrate 1000000 loopback on # Set the interface up ip link set can0 up # Show details ip -details link show can0 # Dump incoming packets candump can0 # Send ip -details -statistic link show can0. Finally, my questions are : ip link set can0 type can bitrate 125000 restart-ms 100. The workaround was to reload the CAN module by modprobe command, or use ip down and ip up commands to refresh the socket can. we use NVIDIA AGX Orin,and add mttcan module, we test CAN by the following steps: connect CAN transceiver set CAN bitrate sudo ip link set can0 type can bitrate 500000 sudo ip link set can1 type can bitrate 500000 sudo ifconfig can0 up sudo ifconfig can1 up Test receive & transmit Receive. At this point the terminal freezes completely, solution is a complete reboot the Raspberry Pi via a power reset. may I also know what’s the actual hardware setup of your CAN connections. ps7-can: phy mem:0xe0008000. dlpkdiiqenzfaluqsxkiavrguqikgbefbrngrnfiyjlyvquqhmllt