CAN Bus Cape RevA

Descriptions
The BeagleBone CANBus Cape makes use of DCAN1 interface of the AM335x processor to provide a Controller Area Network (CAN) interface that meets the specifications of ISO11898. The CAN Bus interface can be accessed via a standard D-Sub 9 female serial connector. This connector is located to the side so it doesn't interfere with any capes stacked above it. The BeagleBone CANBus Cape also supports SocketCAN.

Known Issues

 * There is a hardware bug on the CANBus, where the buffer U27 blocks the TX signal coming from BeagleBone. One workaround for the issue is to remove the buffer and short pin 2 and 4 of U27. Please request an RMA for your board if you are not comfortable with the solder job. Rework will be done at no cost.

Software Support

 * BeagleBone CANBus Cape revision A1 is supported by Angstrom release 06-18-12 or later.


 * Major BeagleBone image releases can be downloaded here.
 * Intermediate BeagleBone image releases can be downloaded here

Please follow the instructions here to write the image file to your SD card on a Windows machine.

Signal Usage
The BeagleBone CANBus Cape uses 7 signals including:
 * DGND
 * VDD_3V3EXP
 * RESET
 * I2C_SDA
 * I2C_SCL
 * UART1_TXD
 * UART1_RXD

Distributors

 * Boardzoo (USA)
 * Arrow Electronics (US)
 * Digi-Key (USA)
 * Mouser Electronics (USA)
 * Special Computing (USA)
 * Tigal (Austria)

System Reference Manual

 * Latest

BeagleBone CANBus Revision A1
To download all files at once please click here
 * Bill of Materials
 * Manufacturing Files
 * Schematic (PDF)
 * Schematic (OrCAD)

To go back to the cape list, please click here