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how to change the default frequency of aurdiuno pwm block of simulink support package for aurdiuno?

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shivaleela patil 2019-5-8

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评论： Jos 2019-10-21

Hi, the default frequency is 490Hz and i need set PWM frequency=10KHz, how to change the default frequency of aurdiuno pwm block of simulink support package for aurdiuno?

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Zenin Easa Panthakkalakath 2019-5-15

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Hi Shivaleela,

Arduino hardware does not support changing the frequency of PWM wave. The frequency of the PWM signal on most pins is approximately 490 Hz. On the Uno and similar boards, pins 5 and 6 have a frequency of approximately 980 Hz.

Regards,

Zenin

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Hariprasad Sl 2019-6-12

Thanks Zenin!

but is there a work around to get the other frequency by modifying timer precsaler using simulink ?

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Simon 2019-8-9

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Dear Shivaleela

this topic was discussed several times.

Please see for example:

https://arduinoinfo.mywikis.net/wiki/Arduino-PWM-Frequency

https://www.arduino.cc/en/Tutorial/SecretsOfArduinoPWM

All the best

SImon

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Arun Kumar 2019-9-25

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编辑：Arun Kumar 2019-9-25

Hi,

Use this library to change the PWM frequency on arduino:

https://in.mathworks.com/matlabcentral/fileexchange/62702-rensselaer-arduino-support-package-library-rasplib

Request for supporting variable PWM frequnecy on arduino is under consideration.

HTH.

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Jos 2019-10-21

Hi,

Any idea when this feature may be updated?

Cheers,

Jos

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