lpc_dac_basic#
Overview#
The dac_basic example shows how to use DAC module simply as the general DAC converter.
When the DAC’s double-buffer feature is not enabled, the CR register is used as the DAC output data register directly. The converter would always output the value of the CR register. In this example, it gets the value from terminal, outputs the DAC output voltage through DAC output pin.
Supported Boards#
LPC845BREAKOUT
Hardware requirements
Micro USB cable
LPC845 Breakout board
Personal Computer
Board settings
PIO0_17 is DAC0 output pin.
Prepare the demo
Connect a micro USB cable between the PC host and the CMSIS DAP USB port on the board.
Open a serial terminal with the following settings:
9600 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
The log below shows the output of the DAC basic driver demo in the terminal window:
DAC basic Example.
Please input a value (0 - 1023) to output with DAC:
Probe the signal of PIO0_17 using an oscilloscope.
LPCXpresso804
Toolchain supported
IAR embedded Workbench 8.22.1
Keil MDK 5.24a
MCUXpresso10.2.0
Hardware requirements
Micro USB cable
LPCXpresso804 board
Personal Computer
Board settings
CAN8 pin2 is DAC0 output pin.
Prepare the Demo
Connect a micro USB cable between the host PC and the LPC-Link USB port (J8) on the target board.
Open a serial terminal with the following settings:
9600 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
The log below shows the output of the hello world demo in the terminal window:
DAC interrupt Example.
Please probe the signal using an oscilloscope.
Customization options
LPCXpresso845MAX
Toolchain supported
IAR embedded Workbench 8.11.3
Keil MDK 5.23
MCUXpresso10.1.0
Hardware requirements
Micro USB cable
LPCXpresso54608 board
Personal Computer
Board settings
J6-5 is DAC0 output pin.
Prepare the Demo
Connect a micro USB cable between the host PC and the LPC-Link USB port (J8) on the target board.
Open a serial terminal with the following settings:
9600 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
The log below shows the output of the hello world demo in the terminal window:
DAC interrupt Example.
Please probe the signal using an oscilloscope.