dac_basic#
Overview#
The dac_basic example shows how to use DAC module simply as the general DAC converter.
When the DAC’s buffer feature is not enabled, the first item of the buffer is used as the DAC output data register. The converter would always output the value of the first item. In this example, it gets the value from terminal, outputs the DAC output voltage through DAC output pin.
Supported Boards#
FRDM-K22F
Hardware requirements
Mini/Micro USB cable
FRDM-K22F board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
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
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.
A multimeter may be used to measure the DAC output voltage.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
DAC basic Example. Please input a value (0 - 4095) to output with DAC: 200 Input value is 200 DAC out: 200
Then user can measure the DAC output pin to check responding voltage.
FRDM-K32L2A4S
Hardware requirements
Mini/Micro USB cable
FRDM-K32L2A4S board
Voltmeter
Personal Computer
Board settings
To measure the DAC output, connect J4-11 to positive of Voltmeter
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
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
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.
A multimeter may be used to measure the DAC output voltage.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
DAC basic Example.
Please input a value (0 - 4095) to output with DAC: 200
Input value is 200
DAC out: 200
Then user can measure the DAC output pin to check responding voltage.
FRDM-K32L2B
Hardware requirements
Mini/Micro USB cable
FRDM-K32L2B board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a USB cable between the PC host and the OpenSDA USB port on the board.
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
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.
A multimeter may be used to measure the DAC output voltage.
Running the demo
When the demo runs successfully, the log would be seen on the OpenSDA terminal like:
DAC basic Example. Please input a value (0 - 4095) to output with DAC: 200 Input value is 200 DAC out: 200
Then user can measure the DAC output pin to check responding voltage.
FRDM-MCXC444
Hardware requirements
Type-C USB cable
FRDM-MCXC444 board
Personal Computer
Board settings
No special is needed.
Prepare the Demo
Connect a type-c USB cable between the host PC and the MCU-Link USB port (J13) on the target board.
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.
Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
A multimeter may be used to measure the DAC output voltage.
Running the demo
When the demo runs successfully, the log would be seen on the terminal like:
DAC basic Example. Please input a value (0 - 4095) to output with DAC: 200 Input value is 200 DAC out: 200
Then user can measure the DAC output pin J6-2 to check responding voltage.