Hardware requirements

  • USB Type-C cable

  • two MCIMX93-QSB boards

  • J-Link Debug Probe

  • 12V~20V power supply

  • Personal Computer

Board settings

Transfer data from one board instance to another board’s instance. SPI3 pins are connected with SPI3 pins of another board

INSTANCE0(SPI3)     CONNECTS TO         INSTANCE0(SPI3)
Pin Name   Board Location       Pin Name  Board Location
SPI3_SCK    J1401 pin 23        SPI3_SCK  J1401 pin 23
SPI3_SIN    J1401 pin 21        SPI3_SOUT J1401 pin 19
SPI3_SOUT   J1401 pin 19        SPI3_SIN  J1401 pin 21
SPI3_PCS0   J1401 pin 24        SPI3_PCS0 J1401 pin 24
GND                             GND

Note

Please run the application in Low Power boot mode (without Linux BSP). The IP module resource of the application is also used by Linux BSP. Or, run with Single Boot mode by changing Linux BSP to avoid resource conflict.

Prepare the Demo

  1. Connect 12V~20V power supply and J-Link Debug Probe to the board, switch SW301 to power on the board.

  2. Connect a USB Type-C cable between the host PC and the J1708 USB port on the target board.

  3. Open a serial terminal with the following settings:

    • 115200 baud rate

    • 8 data bits

    • No parity

    • One stop bit

    • No flow control

  4. Download the program to the target board.

  5. Either cold boot your board or launch the debugger in your IDE to begin running the example.

Running the demo

When the demo runs successfully, the log would be seen on the 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...