Overview
The DAC Example project is a demonstration program that uses the KSDK software. This function uses the terminal to enter a DAC value and convert this value to a DAC output.
Supported Platforms
These Freescale Freedom development platforms and Tower System modules are supported by the DAC example.
- FRDM-K22F
- FRDM-K64F
- FRDM-KL25Z
- FRDM-KL26Z
- FRDM-KL43Z
- FRDM-KL46Z
- MRB-KW01
- TWR-K21D50M
- TWR-K21F120M
- TWR-K22F120M
- TWR-K24F120M
- TWR-K60D100M
- TWR-K64F120M
- TWR-K65F180M
- TWR-KL43Z48M
- TWR-KV10Z32
- TWR-KV31F120M
- TWR-KV46F150M
System Requirement
Hardware requirements
- J-Link ARM
- P&E Micro Multi-link universal
- Mini/micro USB cable
- USB A to micro AB cable
- Hardware (tower/base board, ...) for specific device
- Personal Computer
Toolchain requirements
- IAR embedded Workbench version 7.30.4
- ARM GCC 4.8.3 2014q3
- Keil MDK 5.13
- Kinetis Design Studio IDE v.2.5.0
- Atollic TrueSTUDIO for ARM win32 v5.2.1
Software requirements
- The project files are in: <SDK_Install>/examples/<board>/driver_examples/dac/<toolchain>.
- Library dependencies: ksdk_platform_lib
Getting Started
Hardware settings
The DAC 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 example
- 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 example.
Run the example
These instructions are displayed/shown on the terminal window:
DAC Example.
Enter the value for DAC input from 0 to 65535
Input the DAC value and the board converts that value to the DAC output. The converted value can be seen on the oscilloscope. These instructions are displayed/shown on the terminal window:
Check oscilloscope to see DAC output of 20000
Verify that the voltage is compatible with the DAC level on the oscilloscope.