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

  • LPCXpresso55S16 board

  • Personal Computer

Board settings

    Master_board(SPI7)           Slave_board(SPI2)                          
Pin Name   Board Location     Pin Name   Board Location                     
MISO       J9    pin 11       MISO       J12   pin 5
MOSI       J9    pin 9        MOSI       J12   pin 9
SCK        J9    pin 13       SCK        J12   pin 7
SSEL1      J9    pin 2        SSEL0      J12   pin 13

The jumper setting: Default jumpers configuration does not work, you will need to add JP20 and JP21 (JP22 optional for ADC use)

Prepare the Demo

  1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J1) 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:

SPI one board interrupt example started!

SPI transfer finished!
​~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~