27 lines
1.1 KiB
ReStructuredText
27 lines
1.1 KiB
ReStructuredText
``qencoder`` Quadrature Encoder
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===============================
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This example is a simple test of a Quadrature Encoder driver. It simply reads
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positional data from the encoder and prints it.,
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This test depends on these specific QE/NSH configurations settings (your
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specific PWM settings might require additional settings).
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- ``CONFIG_SENSORS_QENCODER`` – Enables quadrature encoder support (upper-half
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driver).
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- ``CONFIG_NSH_BUILTIN_APPS`` – Build the QE test as an NSH built-in function.
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Default: Built as a standalone program.
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Additional configuration options will mostly likely be required for the board-
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specific lower-half driver. See the ``README.txt`` file in your board
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configuration directory.
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Specific configuration options for this example include:
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- ``CONFIG_EXAMPLES_QENCODER_DEVPATH`` – The path to the QE device. Default:
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``/dev/qe0``.
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- ``CONFIG_EXAMPLES_QENCODER_NSAMPLES`` – This number of samples is collected and
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the program terminates. Default: Samples are collected indefinitely.
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- ``CONFIG_EXAMPLES_QENCODER_DELAY`` – This value provides the delay (in
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milliseconds) between each sample. Default: ``100`` milliseconds.
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