Hardware requirements
Micro USB cable
MIMX8ULP-EVK/EVK9 board
J-Link Debug Probe
5V power supply
Personal Computer
Headphone
Board settings
Please note this application can’t support running with Linux BSP!
Note
Because of the hardware design issue, you can not restart this demo/example by press the Reset Button(SW3):
The I2S0_RXD0 signal is connected to PTA2 of i.MX 8ULP on EVK Board. This pin is also used as BOO_CFG2 pin
when the i.MX SoC reboot. The I2S0_RXD0 signal is driven by on-board WM8960 Codec IC, when user press Reset
Button. This may cause M4 Core enter Boot ROM's "Infinit-Loop" debug mode and only re-powerup the board can
let the M4 core exit such debug mode.
Prepare the Demo
===============
1. Connect 5V power supply and J-Link Debug Probe to the board, switch SW10 to power on the board.
2. Connect a micro USB cable between the host PC and the J17 USB port on the target board.
3. Open a serial terminal with the following settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
4. Download the program to the target board.
5. Either press the reset button on your board or launch the debugger in your IDE to begin running the example
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 terminal like:
SAI functional interrupt example started!
SAI functional interrupt example finished!