Hardware requirements

  • Type-C USB cable

  • FRDM-MCXW72 Board

  • Personal Computer

Board settings

To make the example work, connections needed to be as follows: Jumper setting:

MASTER(SPI1)                connect to      SLAVE(SPI1)
Pin Name   Board Location                   Pin Name    Board Location
SOUT       J6 pin 6                         SIN         J6 pin 5
SIN        J6 pin 5                         SOUT        J6 pin 6
SCK        J6 pin 4                         SCK         J6 pin 4
PCS0       J6 pin 3                         PCS0        J6 pin 3

Other jumpers keep default configuration.

Prepare the Demo

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

Running the demo

The following lines are printed to the serial terminal when the demo program is executed.

LPSPI CMSIS driver board to board edma example.

 Slave example is running...
This is LPSPI_SlaveSignalEvent_t
Slave receive data from master has completed!
This is LPSPI_SlaveSignalEvent_t
Slave transmit data to master has completed!

 Slave receive:
      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...