Raspberry Pi Model B+

[ACX]

[Midnight]

[gswg]

The B+ has better noise suppression on the build in 10bit audio PWM support. It's still miles away from HD audio playback but okay if you are used to listening to FM radio through tiny earbuds

I2S has moved to the 40pin header and is working fine however there are core linux software changes needed to fix i2s on the B+ so don't think that this is a HW issue only.

IQaudIO Pi-DAC "Plus" is well underway - with, we hope, a pleasant additional feature or two.

Gordon@iqaudio.com

[tjaekel]

Raspberry Pi Model B+ works fine with I2S DACs, e.g. RPi-DAC, RPi-DAC-RCA:
http://www.tjaekel.com/T-DAC/raspi_Bplus.html

with:
four jumper wires (different GPIO pins now) AND a Rasbian Linux Kernel Patch.
I did the patch for I2S DACs not needing I2C control connection.
Three bytes to change in a kernel module - all fine.
Without Kernel Patch, even going with most recent image and update - RPi B+ will hang if I2S is used.

[gswg]

The i2s driver change is trivial, someone just needs to make the code change - ensure it works on all board variants (including CM / CMIO), push to kernel-next and issue PR to Dom

i2c is not effected

gordon@iqaudio.com

[gswg]

B+ i2s changes have been integrated, plethora of audio boards will come next.

[gswg]

I may need a special Rune Audio build for the B+ i2s changes soon guys.

Pi-DAC+ with headphone support announced today

http://iqaudio.com

Gordon@ioaudio.com

New B+ compatible Pi-DAC+ HAT with hardware volume control and built in headphone amplifier.

B+_and_Pi-DAC+.jpg (233.07 KiB) Viewed 3078 times

[gasanders99]

I'd like to say Thanks! to the devs on this project. I absolutely love what you guys have done! I started researching this morning, and by the evening I had purchased the hardware (Raspberry Pi B+ and a USB audio adapter), set up everything and am enjoying my music as I type. Awesome!

I downloaded the 0.3-alpha version of Rune Audio for my Raspberry, burned the .img file to the SD card, hooked up the HDMI monitor, ethernet cable and power and watched it boot flawlessly.

My music files (Apple Lossless .m4a) are located on an old headless Linux machine under the stairs. I had to install the NFS server package on it, and following the instructions provided at , I got everything set up in a few minutes.

Once the NFS server was running on the file server, I was able to connect to it using the Rune Audio server’s web interface. Rune’s internal MPD server immediately started indexing the music, and in a few minutes I was up and running.

Thanks again for the wonderful work!