MCUXpresso SDK Documentation

Overview#

The ROM API project is a simple demonstration program of the SDK ROM API driver.

  • The ROM API supports OTP-eFuse read and programming operations.

Hardware requirements#

  • Micro USB cable

  • Target board

  • Personal Computer

Board settings#

No special settings are required.

Prepare the Demo#

  1. Connect a micro USB cable between the PC host and the MCU-Link USB port on the 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. Launch the debugger in your IDE to begin running the demo.

Running the demo#

This example demonstrate various OTP operations. When the example runs successfully, the following message is displayed in the terminal.

ROM API OTP Driver Version 0x45010100
INFO: Starting Example test_otp_init 
INFO: Finished Example test_otp_init
INFO: Starting Example test_otp_fuse_read 
Read fuseword[52] = [0xxx]
INFO: Finished Example test_otp_fuse_read 
INFO: Starting Example test_otp_deinit 
INFO: Finished Example test_otp_deinit 
ALL OTP Examples completed successfully!