2021-07-23 19:53:18 -04:00
|
|
|
Pulse Width
|
|
|
|
~~~~~~~~~~~~
|
|
|
|
|
|
|
|
|
|
|
|
This example is built specificity for the arty_35T. It demonstrates a greater variety of I/O and
|
|
|
|
a PWM that drives the RGB leds on the board. To build this example run the following
|
|
|
|
commands:
|
|
|
|
|
|
|
|
.. code-block:: bash
|
|
|
|
:name: example-pulse-arty-35t
|
|
|
|
|
|
|
|
make -C pulse_width_led
|
|
|
|
|
|
|
|
|
|
|
|
At completion, the bitstreams are located in the build directory:
|
|
|
|
|
|
|
|
.. code-block:: bash
|
|
|
|
|
2021-11-06 16:56:32 -04:00
|
|
|
pulse_width_led/build/arty_35
|
2021-07-23 19:53:18 -04:00
|
|
|
|
|
|
|
Now, you can upload the design with:
|
|
|
|
|
|
|
|
.. code-block:: bash
|
|
|
|
|
2021-11-06 16:51:45 -04:00
|
|
|
TARGET="arty_35" make download -C pulse_width_led
|
2021-07-23 19:53:18 -04:00
|
|
|
|
|
|
|
After downloading the bitstream, you can experiment with and mix different amounts of red, green, and
|
|
|
|
blue on RGB led 0 by toggling different switches and buttons on and off. From left to right:
|
|
|
|
switches 3, 2, 1 control the intensity of blue, switch 0 and buttons 3 and 2 control the intensity of
|
|
|
|
red, and buttons 1 and 0 control the intensity of green. The following provides an example:
|
|
|
|
|
|
|
|
.. image:: ../../docs/images/pwm.gif
|
|
|
|
:align: center
|
|
|
|
:width: 50%
|
|
|
|
|
|
|
|
|