How to change PWM Frequency of Arduino USING MATLAB SIMULINK Support package

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HARIS
HARIS 2014-6-11
评论： Amin Gholizad 2024-6-17
Hello,
i have problem with my project. I use Arduino uno and Simulink. For the control i need a PWM signal with 3000 Hz - 5000 Hz but the Simulink support package (PWM) has only 490 Hz and i can change only the duty-cycle.
What can I do?
I would welcome your response
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Daniel Velazquez
Daniel Velazquez 2021-7-9
You can change the frequency in Simulink just double click on the PWM block in the Frequency drop down menu select: Specify and write your desired frequency in Hz.
The problem is the higher the frequency (>100kHz) the lower the resolution of the PWM, but at 5kHz you should have no problem.
...as of July 8, 2021 with ATMEGA 2560.

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回答（1 个）

Greg Wolff
Greg Wolff 2019-8-15
You cannot change the PWM frequency of the PWM block found in the Arduino hardware support package.
You can however create custom device driver blocks. There is a good resource here:
https://www.mathworks.com/matlabcentral/fileexchange/39354-device-drivers
that has various examples, all built around supporting Arduino boards.

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