Fast PWM Timer1 mode 15

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MuhammedElmaghraby
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Posted by MuhammedElmaghraby: Mon. Sep 16, 2019 - 01:24 PM
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So , This is my first forum here in this new community ...
i was wondering about the last mode in the photo
PWM fast mode number 15
which defines ocr1a as the top , so if it is generating a pwn which register the tcnt1 will compare its value with if ocr1a is the top , how i am going to control my duty cycle in other words...?

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Image icon 33F0A8EB-9EEA-4B24-83DD-DCE24684A0C4.jpeg

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AVR Microcontrollers, megaAVR and tinyAVR
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ki0bk
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Posted by ki0bk: Mon. Sep 16, 2019 - 01:43 PM
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MuhammedElmaghraby wrote:
if it is generating a pwn which register the tcnt1 will compare its value with if ocr1a is the top

With OCR1b as it is the only OCR left.  So this mode only has one PWM output.

 

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MuhammedElmaghraby
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Posted by MuhammedElmaghraby: Mon. Sep 16, 2019 - 01:44 PM (Reply to #2)
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Thank you man ❤️

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clawson
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Posted by clawson: Mon. Sep 16, 2019 - 01:59 PM
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Wonder if there's a whole class all learning the same thing here? I posted an answer about this very same thing to a different thread this morning...

 

https://www.avrfreaks.net/comment/2765886#comment-2765886

 

EDIT: OK, so I'm wrong - IP addresses say completely unrelated so I guess it's just a coincidence.

Last Edited: Mon. Sep 16, 2019 - 02:01 PM
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