Re:Raspberry Pi 3 on Sale
by mschuster91 on Monday February 29, 2016 @06:35AM
(#11194864)
Thanks for the information, I was under the impression that the Pi 2 also used P5... but indeed it's on the 40 pin header now (http://www.pagemac.com/projects/i2s_amp)
Re:Raspberry Pi 3 on Sale
by makomk on Monday February 29, 2016 @06:55AM
(#11194933)
If you have the technical skills to make it work it might be worth looking into the AC97 interface on some of the Allwinner boards. I'm not sure anyone's tried using it yet and some driver development will be required though.
Now if one could repurpose another 2 GPIO pins for bit-banging I2s... there are chips which support multichannel, see http://www.ti.com/lit/an/snla221/snla221.pdf page 5.