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zephyr/samples/sensor/mcux_acmp
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Gerard Marull-Paretas a202341958 devices: constify device pointers initialized at compile time 
Many device pointers are initialized at compile and never changed. This
means that the device pointer can be constified (immutable).

Automated using:

```
perl -i -pe 's/const struct device \*(?!const)(.*)= DEVICE/const struct
device *const $1= DEVICE/g' **/*.c
```

Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
2022-08-22 17:08:26 +02:00
..
boards boards: Add analog comparator support on MIMXRT1170 EVK 2022-06-09 11:30:49 +02:00
src devices: constify device pointers initialized at compile time 2022-08-22 17:08:26 +02:00
CMakeLists.txt
prj.conf sensors: Remove unnecessary Kconfig setting of sensors 2022-07-25 15:18:56 +02:00
README.rst boards: Add analog comparator support on MIMXRT1170 EVK 2022-06-09 11:30:49 +02:00
sample.yaml boards: Add analog comparator support on MIMXRT1170 EVK 2022-06-09 11:30:49 +02:00

README.rst 

.. _mcux_acmp:

NXP MCUX Analog Comparator (ACMP)
#################################

Overview
********

This sample show how to use the NXP MCUX Analog Comparator (ACMP) driver. The
sample supports the :ref:`twr_ke18f`, :ref:`mimxrt1170_evk`.

The input voltage for the the negative input of the analog comparator is
provided by the ACMP Digital-to-Analog Converter (DAC). The input voltage for
the positive input can be adjusted by turning the on-board potentiometer for
:ref:`twr_ke18f` board, for :ref:`mimxrt1170_evk` the voltage signal is
captured on J25-13, need change the external voltage signal to check the
output.

The output value of the analog comparator is reported on the console.

Building and Running
********************

Building and Running for TWR-KE18F
==================================
Build the application for the :ref:`twr_ke18f` board, and adjust the
ACMP input voltage by turning the on-board potentiometer.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/mcux_acmp
   :board: twr_ke18f
   :goals: flash
   :compact:

Building and Running for MIMXRT1170-EVK
=======================================
Build the application for the MIMXRT1170-EVK board, and adjust the
ACMP input voltage by changing the voltage input to J25-13.

.. zephyr-app-commands::
   :zephyr-app: samples/drivers/mcux_acmp
   :board: mimxrt1170_evk_cm7
   :goals: flash
   :compact: