This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

  • Micro USB cable

  • EVK-MIMX8M Plus board

  • J-Link Debug Probe

  • 12V power supply

  • Personal Computer

Board settings

The example requires 2 sets of boards, each of them are mounted with the base board. Using a male to male CAN cable to connect the CAN1 instance (J19) between the 2 base boards.

Prepare the Demo

  1. Connect 12V power supply and J-Link Debug Probe to the board, switch SW3 to power on the board

  2. Connect a USB cable between the host PC and the J23 USB port on the target board.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Launch the debugger in your IDE to begin running the demo.

Running the demo

After connecting the two boards, these instructions display on each terminal window. One board must be chosen as node A and the other board as node B. (Note: Node B should start first) Data is sent continuously between the node A and the node B.

This message displays on the node A terminal:

********* FLEXCAN Interrupt EXAMPLE *********
    Message format: Standard (11 bit id)
    Message buffer 9 used for Rx.
    Message buffer 8 used for Tx.
    Interrupt Mode: Enabled
    Operation Mode: TX and RX --> Normal
*********************************************

Please select local node as A or B:
Note: Node B should start first.
Node:A
Press any key to trigger one-shot transmission

Rx MB ID: 0x123, Rx MB data: 0x0, Time stamp: 21747
Press any key to trigger the next transmission!

Rx MB ID: 0x123, Rx MB data: 0x1, Time stamp: 20717
Press any key to trigger the next transmission!

This message displays on the node B terminal:

********* FLEXCAN Interrupt EXAMPLE ********* Message format: Standard (11 bit id) Message buffer 9 used for Rx. Message buffer 8 used for Tx. Interrupt Mode: Enabled Operation Mode: TX and RX –> Normal

Please select local node as A or B: Note: Node B should start first. Node:B Start to Wait data from Node A

Rx MB ID: 0x321, Rx MB data: 0x0, Time stamp: 46379 Wait Node A to trigger the next transmission!

Rx MB ID: 0x321, Rx MB data: 0x1, Time stamp: 45372 Wait Node A to trigger the next transmission!