MCUXpresso SDK Documentation
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Hardware requirements

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!
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