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lpuart_polling_trigger

lpuart_polling_trigger#

Overview#

The lpuart_polling_trigger Example project is to demonstrate usage of the KSDK lpuart driver. In the example, you can send characters to the console back and they will be printed out onto console instantly. Note: Please input one character at a time. If you input too many characters each time, the receiver may overflow because the LPUART uses simple polling way for receiving.

Supported Boards#

IMX943-EVK
Hardware requirements

  • Micro USB cable

  • IMX943-EVK board

  • J-Link Debug Probe

  • 12V~20V power supply

  • Personal Computer

Board settings

No special settings are required.

Please note this application can’t support running with Linux BSP!
Prepare the Demo

  1. Connect 12V~20V power supply and J-Link Debug Probe to the board, switch SW1(SYS_PWR) to power on the board.

  2. Connect a micro USB cable between the host PC and the J15(FTDI_DEBUG) 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 re-power up your board or launch the debugger in your IDE to begin running the example.

Running the demo

When the example runs successfully, you can see the similar information from the terminal as below.

IPSYNC trigger signal connected!

Lpuart polling example
Board will send back received characters

If disable the trigger signal from XBAR, you will see there is no output on terminal.
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