Changing Audio out pins

[Scott Althoff]

If I change the TIMER1_A_PIN in known_16bit_timers.h will this allow me to change the pin that audio is output on?  Is there anything else I need to do?

Scott

[Tim Barrass]

Hi Scott,

if you're using Mozzi's STANDARD audio mode where the output is on pin 9 or whatever it is for various processors (see Mozzi docs http://sensorium.github.io/Mozzi/doc/html/group__core.html#ga0b8ca8ad62b88c01b639bad62eafcbf1), the only option you could use other than TIMER1_A_PIN is TIMER1_B_PIN as defined for your processor in known_16bit_timers.h, which would be pin 10 on an Arduino Uno, Nano, or other atmega328 based boards (check the file for others). 

Then the quickest thing to do would be to edit AudioConfigStandard9bitPwm.h and change

#define AUDIO_CHANNEL_1_OUTPUT_REGISTER OCR1A

to
#define AUDIO_CHANNEL_1_OUTPUT_REGISTER OCR1B

and
#define AUDIO_CHANNEL_1_PIN TIMER1_A_PIN
to
#define AUDIO_CHANNEL_1_PIN TIMER1_B_PIN

In HIFI mode, both pins are used so there's no alternative.

Tim

On 22 June 2013 10:01, Scott Althoff <scott....@gmail.com> wrote:

If I change the TIMER1_A_PIN in known_16bit_timers.h will this allow me to change the pin that audio is output on?  Is there anything else I need to do?

Scott

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