Hardware requirements

• Mini/micro USB cable

• EVK-MIMXRT1020 board

• Personal Computer

• Headphone

Board settings

No special settings are required.

Prepare the Demo

1. Connect a USB cable between the host PC and the OpenSDA USB port on the target 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. Insert the headphones into the headphone jack on EVK-MIMXRT1020 board.

5. 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 uses codec master mode(internal pll mode) and 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 EDMA example started!
SAI EDMA example finished!

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

1. Select the flash target and compile.

2. Set the SW8: 1 off 2 off 3 on 4 off, then power on the board and connect USB cable to J23.

3. 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.