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PWM Audio Generation With An AVR | Hackaday
https://hackaday.com/2008/02/07/pwm-audio-generation-with-an-avr/
to process mp3 files, you would need either a separate decoder ic, or a relatively fast micro with software mp3 decoding, using unsigned, non-floating …
avr - Audio PWM on atmega644 - Electrical Engineering ...
https://electronics.stackexchange.com/questions/205453/audio-pwm-on-atmega644
To do PWM audio, you probably want a higher frame rate. The ATtiny family can do PWM with an imprecise ~64 MHz clock rate multiplied up from the internal oscillator. Various ARM parts can with a rate multiplied up from a more precise external crystal. Share answered Dec 11 '15 at 4:56 Chris Stratton 32.8k 3 42 89 Add a comment 0
PWM Audio | AVR Freaks
https://www.avrfreaks.net/forum/pwm-audio
Right now all AVR 8 bit hardware and software problems must be triaged from the one AVR forum. The ONLY exception is GCC, which has its own forum. I think there should at least be a hw branch and a sw branch, but sw comprises several compilers and assembler. ... The code would suggest that it generates the audio on OC2 pin PWM (timer2) and ...
AVR PWM Pulse Width Modulation - Tutorial #12
https://www.electroschematics.com/avr-pwm/
PWM & AVR For making PWM, AVR contains separate hardware! By using this, the CPU instructs the hardware to produce PWM of a particular duty cycle. The ATmega8 has 3 PWM outputs, 2 are located on timer/counter1 (16bit) and 1 is located on timer/counter2 (8bit). Timer/Counter2 is the simplest PWM device on the ATmega8.
AVR131: Using the AVR’s High-speed PWM
https://ww1.microchip.com/downloads/en/AppNotes/Atmel-2542-Using-the-AVR-High-speed-PWM_ApplicationNote_AVR131.pdf
High-speed PWM In the AVR®, the timer/counters can be used to generate PWM signals. PWM base frequency is determined by timer clock frequency and top counter value. Faster clock frequency will increase the PWM base frequency and vice versa. Lower top value will reduce the time for overflow, which thereby increases the PWM frequency.
AVR PCM audio: Playing 8 bit PCM using any AVR ...
https://avrpcm.blogspot.com/2010/11/playing-8-bit-pcm-using-any-avr.html
AVR's high speed PWM is used to play the audio. It almost sound fine and can be used for simple projects that require sound effects. The code is compiled in winavr GCC compiler. The microcontroller used is ATmega32, though any AVR processor can be used for the purpose.
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