Hardware requirements

  • Mini USB cable

  • Two MCX-N9XX-EVK boards

  • Personal Computer

Board settings

LPSPI:

	MASTER           connect to           SLAVE
Pin Name   Board Location     Pin Name    Board Location
SOUT       J2 Pin 8           SIN         J2 Pin 10
SIN        J2 Pin 10          SOUT        J2 Pin 8
SCK        J2 Pin 12          SCK         J2 Pin 12
PCS0       J2 Pin 6           PCS0        J2 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 MCU-Link USB port on the board.

  2. Open a serial terminal on PC for MCU-Link 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 MCU-Link terminal like:

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...