Hardware requirements

  • Micro USB cable

  • Two LPCXpresso55s69 boards

  • Personal Computer

Board settings

Connect SPI slave on board to SPI master on other board

    Master_board(SPI7)           Slave_board(SPI7)                          
Pin Name   Board Location     Pin Name   Board Location                     
MISO       P17  pin 12          MISO      P17  pin 12
MOSI       P17  pin 10          MOSI      P17  pin 10
SCK        P17  pin 14           SCK      P17  pin 14
SSEL1      P17  pin 1          SSEL1      P17  pin 1
GND        P17  pin 7           GND       P17  pin 7

Prepare the Demo

Note: MCUXpresso IDE project default debug console is semihost

  1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (P6) 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. Reset the SoC and run the project.

Running the demo

When the demo runs successfully, the log would be seen on the CMSIS DAP terminal like:

Slave is working....

Succeed!
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