Hardware requirements

• Micro USB cable

• EVK-MIMXRT685 board

• Personal Computer

Board settings

Connect SPI master on board to SPI slave on other board

    Master_board(SPI5)           Slave_board(SPI5)                          
Pin Name   Board Location     Pin Name   Board Location                     
MISO       J28 pin 5          MISO       J28 pin 5
MOSI       J28 pin 4          MOSI       J28 pin 4
SCK        J28 pin 6          SCK        J28 pin 6
PCS0       J28 pin 3          PCS0       J28 pin 3
GND        J28 pin 7          GND        J28 pin 7

Prepare the Demo

1. Connect a micro USB cable between the PC host and the CMSIS DAP USB port (J5) 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. Launch the debugger in your IDE to begin running the demo.

Running the demo

When the demo runs successfully, the log would be seen on the terminal like:

CMSIS SPI board2board DMA example -- Slave transfer.


 Slave example is running...


 Slave receive:
      0  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
Succeed!