3 ms·
The I2S interface is still present on the 40-pin GPIO as per the Pi2 and B+.
by whiskers 11y ago
The I2S interface is still present on the 40-pin GPIO as per the Pi2 and B+.
- kingosticks 11y agoCheers for clarifying that. Might have been the end for hifiberry, iqaudio etc otherwise
- mschuster91 11y agoThanks 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 http://www.pagemac.com/projects/i2s_amp) 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 http://www.ti.com/lit/an/snla221/snla221.pdf page 5.
- makomk 11y agoIf 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.