CAN Bus Cape RevA

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BeagleBone CANBus Cape

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.


Electrical Specifications

Compatible Serial Ports UART1
Power 3.3V via expansion header
Indicator Power LED
Connectors Two 46-position connectors
One 10-position connector
One D-Sub9 serial connector

Mechanical Specifications

Size 3.40" x 2.45"
Layers 4
PCB Thickness .062"
RoHS Compliant Yes

Signal Usage

BeagleBone CANBus Pin Usage

The BeagleBone CANBus Cape uses 7 signals including:

  • DGND
  • VDD_3V3EXP
  • I2C_SDA
  • I2C_SCL


EEPROM Suport Yes
Board Name BeagleBone CANBus Cape
Version 00A1
Manufacturer BeagleBoardToys
Part Number BB-BONE-SERL-01
Pins Used 15


Product Images


System Reference Manual

Hardware Files

BeagleBone CANBus Revision A1

To download all files at once please click here

To go back to the cape list, please click here