This thread is to confirm what P5 connector GPIO pins are allocated for I2S DACs in Rune, and to allow Google searchers to find the info quickly.
I am borrowing heavily on the posts Ian (IDM) made on the Volumio forums, as we're both using the Pi with a Philips TDA1541A DAC.
For the I2S connection I have taken:
LRCK from pin 4 of the Pi's P5 and connected it to Pin 1 of the TDA DAC
BCK from pin 3 of the Pi's P5 and connected it to pin 2 of the TDA DAC
Data from pin 6 of the pi's P5 and connected it to pin3 of the TDA DAC
Ground from pin 8 of the Pi's p5 is taken to digital ground of the DAC chip
Pin 4 of the DAC chip is connected to pin2 (BCK) of the Dac chip.
I'm looking to use I2S into my Pedja Rogic AYA DAC. I'm going to try injecting the I2S in upstream of resistors R106-R108 (SDATA, WS, BCK). There is a reclocker onboard this DAC.
Please may I confirm which P5 pins correspond to which in Rune?
Here's a graphic for any Googlers:
http://www.raspberrypi-spy.co.uk/2012/0 ... p5-header/
PS - Bright Idea I had - can I use a Pi to connect via a VPN to my Router at home, so I can stream my NAS tunes while I am away? This would make for great listening while on holiday etc! I guess I would need a static IP from my ISP.