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ae2b3587e6
Add support for the NXP FRDM-K64F development board to the DAC driver sample. Signed-off-by: Henrik Brix Andersen <henrik@brixandersen.dk>
68 lines
1.6 KiB
ReStructuredText
68 lines
1.6 KiB
ReStructuredText
.. _dac-sample:
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Digital-to-Analog Converter (DAC)
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#################################
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Overview
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********
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This sample demonstrates how to use the DAC driver API.
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Building and Running
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********************
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The DAC output is defined in the board's devicetree and pinmux file.
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Building and Running for ST Nucleo L073RZ
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=========================================
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The sample can be built and executed for the
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:ref:`nucleo_l073rz_board` as follows:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/dac
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:board: nucleo_l073rz
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:goals: build flash
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:compact:
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Building and Running for NXP TWR-KE18F
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======================================
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The sample can be built and executed for the :ref:`twr_ke18f` as
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follows:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/dac
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:board: twr_ke18f
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:goals: build flash
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:compact:
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DAC output is available on pin A32 of the primary TWR elevator
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connector.
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Building and Running for NXP FRDM-K64F
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======================================
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The sample can be built and executed for the :ref:`frdm_k64f` as
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follows:
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.. zephyr-app-commands::
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:zephyr-app: samples/drivers/dac
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:board: frdm_k64f
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:goals: build flash
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:compact:
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DAC output is available on connector J4 pin 11.
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Sample output
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=============
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You should see a sawtooth signal with an amplitude of the DAC reference
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voltage and a period of approx. 4 seconds at the DAC output pin specified
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by the board.
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The following output is printed:
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.. code-block:: console
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Generating sawtooth signal at DAC channel 1.
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.. note:: If the DAC is not supported, the output will be an error message.
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