Hardware requirements#
Mini USB cable
TWR-KM34Z75M board
Personal Computer
Board settings#
Turn on the third switch of S1(connect S1-3 to S1-18).
Prepare the Demo#
Connect a USB cable between the host PC and the OpenSDA USB port on the target board.
Connect the analog signal source’s output to the input of used-defined comparator’s channel (defined as “DEMO_CMP_USER_CHANNEL” in source code.)
Open a serial terminal with the following settings:
115200 baud rate
8 data bits
No parity
One stop bit
No flow control
Download the program to the target board.
Reset the SoC and run the project.
Running the demo#
When the demo runs successfully, the following message is displayed in the terminal:
CMP polling Example
Then change CMP analog input, and watch the change of LED.
CMP0_IN1(J11_16) connected to VCC=3.3V: LED ORANGE ON
CMP0_IN1(J11_16) connected to GND: LED ORANGE OFF