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

• FRDM-K22F board

• Personal Computer

Board settings

The RNGA demo does not call for any special hardware configurations.

Prepare the Demo

1. Connect a mini USB cable between the PC host and the OpenSDA USB on the board.

2. Open a serial terminal on PC for OpenSDA serial device with these settings:

   • 115200 baud rate

   • 8 data bits

   • No parity

   • One stop bit

   • No flow control

3. Download the program to the target board.

4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.

Running the demo

When the demo runs successfully, from the terminal you can see:

RNGA Peripheral Driver Example Generate 10 random numbers: Random[0] = 0xE1554295 Random[1] = 0x827AD456 Random[2] = 0x9A1CBE1E Random[3] = 0x4354CB53 Random[4] = 0xFE3B2494 Random[5] = 0xEDAB3F7D Random[6] = 0x9AB91722 Random[7] = 0x4F54D999 Random[8] = 0x492414D1 Random[9] = 0x84611992

Press any key to continue…