Hardware requirements

• Type-C USB cable

• FRDM-MCXN236 board

• Personal Computer

Board settings

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

MASTER(FlexIO SPI)          connect to      SLAVE(FlexIO SPI)
Pin Name   Board Location                   Pin Name    Board Location
SOUT       J8 pin 26                        SIN         J8 pin 26
SIN        J8 pin 25                        SOUT        J8 pin 25
SCK        J8 pin 27                        SCK         J8 pin 27
PCS0       J8 pin 28                        PCS0        J8 pin 28

Prepare the Demo

1. Connect a USB cable between the host PC and the EVK board J10.

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

Running the demo

The log below shows the output of the hello world demo in the terminal window:

FlexIO SPI edma example
Master Start...

Master runs successfully!