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CAN Bus
Related Posts

  • Forum Post: Isolating an off-the-shelf CAN device with back to back CAN Transceivers

    Nick Wernicke
    I have an off-the-shelf CAN device that does not have galvanic isolation between its CAN port and its ground. I would like to isolate this device. Is that possible to do with two can transceivers (perhaps ISO1050DUB) connected back to back? Will the built in bus arbitration prevent this from working...
    on Sep 23, 2011

  • Forum Post: Can transceiver troubles

    jerome chopard
    Hi, I'm using SN65HVD230 CAN transceivers to form a network of sensors. I'm using a baud rate of 100kz and a resistor (R2) of 50kohm is connected to Rs pin to ensure that transmission will suffer low level of noises. The system works well for a few days but fail randomly after that and I measure...
    on Oct 18, 2011

  • Forum Post: ISO1050 - Missing datasheet parameter: how many nodes?

    Robert B.
    Hello, how many CAN transceivers of ISO1050 can be connected to one CAN bus? There's no information about this in the actual datasheet. For example in the product specification of the non-isolated CAN transceiver TJA1040 is written: "At least 110 nodes can be connected". Thank...
    on Dec 20, 2011

  • Forum Post: CAN Transceiver Understanding

    Kevin Miles
    Hello, I'm a junior EE trying to get into the CAN world. I've done some extensive research into the CAN system and am familiar with the general dynamics of the system (CANH, CANL, up to 1Mbps, extended-ID... I've hit a road block in trying to grasp why many microprocessors have "CAN"...
    on Dec 19, 2011

  • Forum Post: ISO1050

    Joerg Schneide
    Hello, I have a question re the ISO1050: What happens when the power supply on VCC1 (logic side) is lost. Does the bus side remains recessive? Is the CAN bus affected in any way? I haven't found anything on this topic in the datasheet. It is described only what happens when VCC2 is...
    on Jan 12, 2012

  • Forum Post: SN65HVD230 vs the SN65HVD233

    Larissa Swanland
    We are currently using SN65HVD230 but looking at switching to SN65HVD233. Application is CAN. Unfortunately we do not have a lot of time to test before we make the switch in the field. Are there any compatibility issues we should be aware of or test against? Note: Pin 5 is floating in our designs.
    on Feb 13, 2012

  • Forum Post: Re: Initial high failure rate of ISO1050DWs. Any suggestions?

    CharlieWW
    Hi Thomas, I do not believe I ever received the schematic, just your list of parts. Can you resend the schematic or just a crude connectivity diagram? tnx,
    on Mar 8, 2012

  • Forum Post: Re: Initial high failure rate of ISO1050DWs. Any suggestions?

    CharlieWW
    Hi Thomas, I think this will work for me with changes to the breakdown voltages (e.g., capacitor breakdown voltage ~ 6KV) to not be destroyed by defibrillator pulse and provide proper isolation. tnx, Charlie
    on Mar 9, 2012

  • Forum Post: Problems with 3V3 CAN Tranceiver SN65HVD232 / SN65HVD235

    Tobias Zimmer
    Hello, I need to implement the functionality of "sending out a single CAN-Message to other nodes" if a boolean state changes on my PCB. Overall number of nodes at the bus will be 3-4. Bus-Speed is fixed at 100kbps/125kbps . I am using a MCP2515 Controller with an TI SN65HVD232 3...
    on Mar 9, 2012

  • Forum Post: Dual Can or two CAN I/F circuits to replace mcp2551

    Robert Lewis
    We are using one mcp2551 CAN interface circuit we want to use a TI CAN circuit replacement. We need two CAN circuits. This is an automotive application. The uC is at 3.3v but we have 5v available if necessary. Cost is a factor as is reliability of course. I thought I saw a dual can I/F a few months ago...
    on Apr 9, 2012

  • Forum Post: ISO1050 RXD

    Andrey Yastrebov
    Hi, I bought several ISO1050DW chips, and can't get them to work. I connected 5v to Vcc2 (tried different sources) 0v to all three GND 2 120 Ohm resistor between CANH and CANL 3.3v to Vcc1, 0v to all three GND1, Microcontroller to RXD. Microcontroller watches for changes and if there's...
    on Aug 28, 2012

  • Forum Post: SN65HVD231 CAN transceiver issue

    Sky Lee
    1) Is it possible to recommend us any low capacitance cable suited for CAN bus applications? Our system details are: Target bitrate: 250kbps Max cable length = 200m Max nodes = 16 Transceiver= TI sn65hvd231 We tested above system using unshielded twisted pair but communication struggles...
    on Oct 8, 2012

  • Forum Post: CAN Transceiver interface with Microcontroller Freescale SPC5674F

    balachandra raj urs
    I am planning to interface SPC5674F with SN65HVD256, since as per data sheet of Freescale the VDDEH4 (I/O supply voltage) voltage has limits from 3.0 to 5.5V. Kindly confirm if it is fine. Also i am using the CAN interface for the first time. Kindly provide what other precautions i have to take while...
    on Dec 12, 2012

  • Forum Post: CAN - trying to receive, get Resource temporarily unavailable error

    hj
    Hi, I'm using a Phytec board with a CAN interface (using SN65HVD233 chip). The Phytec board sends a command (or list of various commands) to another module using a Stellaris, which takes samples and sends the data back over the CAN lines. The Phytec board is totally fine sending a command to...
    on Jan 28, 2013

  • Forum Post: SN65HVD23x wire fault handling

    Brian Zenowich
    I have read the datasheets for these parts, and I understand that the signaling is compatible with "standard" 5V CAN transceivers. But the datasheets don't mention how the transceiver handles the various fault modes of ISO 11898-2. I have also looked at: http://www.ti.com/lit/an/slla337...
    on May 24, 2013

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