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How to use the variable frequency generator of ATMega16 controller?

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ashishkoujalgi

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Hello all,

I am new to this forum and i wanted to know how i can generate variable frequency using the ATMega16 microcontroller. I want to generate PWM signal whose frequency can be varied from 2Hz to 2.5kHz using the push buttons.
 

How many steps are you going to use?

Will you have just 50% duty cycle or will you vary duty cycle as well?

Have you gone through the datasheet and taken a look at the CMO module and the PWM modes of operation? If not, here's the datasheet: www.atmel.com/Images/doc2466.pdf
 

Tahmid said:
How many steps are you going to use?

Will you have just 50% duty cycle or will you vary duty cycle as well?

Have you gone through the datasheet and taken a look at the CMO module and the PWM modes of operation? If not, here's the datasheet: www.atmel.com/Images/doc2466.pdf
Click to expand...


Hello Tahmid,

Thanks for your reply. I have read the PWM Modes in the datasheets few times and i am not able to exactly figure out what i need to do.
I need to vary the frequency in steps of 1Hz (2Hz to 2.5kHz) and duty cycle from 1-100%. I want to control both the parameters taking the input from the user.
I am using ATMega16 with 16MHz crystal.

Regards,
Ashish
 

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