This is the documentation for the latest (main) development branch of mcuxpresso sdk. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.

Hardware requirements

Mini/micro USB cable
EVK-MIMXRT1020 board
Personal Computer
Headphone

Board settings

No special settings are required.

Prepare the Demo

Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Open a serial terminal with the following settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
Download the program to the target board.
Insert the headphones into the headphone jack on EVK-MIMXRT1020 board.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

Note: This demo outputs 215HZ sine wave audio signal. When the demo runs successfully, you can hear the tone and the log would be seen on the OpenSDA terminal like:

SAI functional interrupt example started!

SAI functional interrupt example finished!

Note: To debug in qspiflash, following steps are needed:

Select the flash target and compile.
Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.
Start debugging in IDE.
- Keil: Click “Download (F8)” to program the image to qspiflash first then clicking “Start/Stop Debug Session (Ctrl+F5)” to start debugging.