Hardware requirements

  • Micro USB cable

  • Two LPCXpresso54628 boards

  • Personal Computer

Board settings

Populate jumper JP6. Connect SPI master on board to SPI slave on other board

    Master_board(SPI9)           Slave_board(SPI9)                          
Pin Name   Board Location     Pin Name   Board Location                     
MISO       J9  pin 11          MISO       J9  pin 11
MOSI       J9  pin 13          MOSI       J9  pin 13
SCK        J9  pin 9           SCK        J9  pin 9
PCS0       J9  pin 15          PCS0       J9  pin 15
GND        J14 pin 5           GND        J14 pin 5

Change the solder jumper JS27 to 2-3 to use P3_30 pin as SSEL or to use the Arduino connector J9 Pin 15.

Prepare the Demo
===============
1.  Connect a micro USB cable between the PC host and the LPC-Link USB port (J8) on the board.
2.  Open a serial terminal with the following 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 terminal like:

This is SPI DMA transfer slave example. This example will communicate with another master SPI on the other board. Slave board is working…!

The received data are: 0x00 0x01 0x02 0x03 0x04 0x05 0x06 0x07 0x08 0x09 0x0A 0x0B 0x0C 0x0D 0x0E 0x0F 0x10 0x11 0x12 0x13 0x14 0x15 0x16 0x17 0x18 0x19 0x1A 0x1B 0x1C 0x1D 0x1E 0x1F 0x20 0x21 0x22 0x23 0x24 0x25 0x26 0x27 0x28 0x29 0x2A 0x2B 0x2C 0x2D 0x2E 0x2F 0x30 0x31 0x32 0x33 0x34 0x35 0x36 0x37 0x38 0x39 0x3A 0x3B 0x3C 0x3D 0x3E 0x3F SPI transfer all data matched!