Hardware requirements

  • Type-C USB cable

  • FRDM-MCXN947 board

  • Personal Computer

Board settings

The Multicore eRPC Matrix Multiply project does not call for any special hardware configurations. Although not required, the recommendation is to leave the development board jumper settings and configurations in default state when running this demo.

Prepare the Demo

Note: MCUXpresso IDE project default debug console is semihost

  1. Connect a type-c USB cable between the PC host and the MCU-Link USB port (J17) on the board

  2. Open a serial terminal with the following settings (See Appendix A in Getting started guide for description how to determine serial port number):

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  3. Download the program to the target board.

  4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

For detailed instructions, see the appropriate board User’s Guide.

Running the demo

The log below shows the output of the eRPC Matrix Multiply demo in the terminal window:

Primary core started
Copy CORE1 image to address: 0x2004e000, size: 15548

Matrix #1
=========
  21   33   37   37    9
  23   45   43    0   32
  38   44    8   15   36
  18   18   38   44   16
  22   23    0   38    7

Matrix #2
=========
  11   23   27   45   11
   7   19   23   24    6
  32   26   49   43   16
  22   48   36   34   41
  27   20   32   31   11

eRPC request is sent to the server

Result matrix
=============
2703 4028 4759 4865 2637
2808 3142 4787 4956 1563
2284 3358 4122 4736 1821
2940 4176 4858 4868 2894
1428 2907 2715 3051 2015

Press the SW3 button to initiate the next matrix multiplication

Note: The “Copy CORE1 image to address…” log message is not displayed on the terminal window when MCUXpresso IDE is used. In case of MCUXpresso IDE the secondary core image is copied to the target memory during startup automatically.