Hardware requirements
Mini/micro USB cable
FRDM-K22F board
Personal Computer
Board settings
This example project does not call for any special hardware configurations. Although not required, the recommendation is to leave the development board’s jumper settings and configurations in default state when running this example.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
Open a serial terminal with these settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
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, the log would be seen on the OpenSDA terminal like:
ADC LOW POWER ASYNC DMA DEMO
ADC16_DoAutoCalibration() Done.
ADC value: 15670
ADC value: 16634
ADC value: 16686
ADC value: 16681
Note:
LED will be toggled when the CPU wake up.