Hardware requirements

  • Micro USB cable

  • Two FRDM-KE16Z boards

  • Personal Computer

Board settings

SPI one board: Transfer data from one board instance to another board’s instance. SPI0 pins are connected with SPI0 pins of another board

INSTANCE0(SPI0)     CONNECTS TO         INSTANCE0(SPI0)
Pin Name   Board Location     Pin Name  Board Location
SOUT        J4 pin 7            SIN       J4 pin 5
SIN         J4 pin 5            SOUT      J4 pin 7
SCK         J4 pin 3            SCK       J4 pin 3
PCS3        J4 pin 6            PCS3      J4 pin 6
GND         J2 pin 14           GND       J2 pin 14

Prepare the Demo

  1. Connect a mini USB cable between the PC host and the OpenSDA USB port on the board.

  2. Open a serial terminal on PC for OpenSDA serial device with these settings:

    • 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 OpenSDA terminal like:

LPSPI board to board polling example.

 Slave example is running...
This is LPSPI slave transfer completed callback. 
It's a successful transfer. 

This is LPSPI slave transfer completed callback. 
It's a successful transfer. 


 Slave received:
      1  2  3  4  5  6  7  8  9  A  B  C  D  E  F 10
     11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20
     21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30
     31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40

 Slave example is running...