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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
shivaleela patil on 8 May 2019
Commented: Jos on 21 Oct 2019
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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Answers (3)

Zenin Easa Panthakkalakath
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
Hariprasad Sl on 12 Jun 2019
Thanks Zenin!
but is there a work around to get the other frequency by modifying timer precsaler using simulink ?

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Simon
Simon on 9 Aug 2019
Dear Shivaleela
this topic was discussed several times.
Please see for example:
https://www.arduino.cc/en/Tutorial/SecretsOfArduinoPWM
All the best
SImon

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