Please help me for the same problem. I need to play Audio via i2s in beaglebone board.
Thanks On Friday, September 22, 2017 at 9:17:33 PM UTC+5:30, [email protected] wrote: > > Hello everyone, > > I need your help. > > I have a BeagleBone Black Wireless, on which I installed the standard > Jessie Debian distribution. > I want to add an audio output with the I2S, and i wish to keep HDMI > working. > > I also have a DAC (Phat DAC) which is originally made for the Raspberry pi > zero. > > I'm aware that the HDMI chip is receiving the I2S data that is generated > by the processor. (see this [article]( > https://hifiduino.wordpress.com/2014/03/10/beaglebone-black-for-audio/) > for details) > > I have use the BBBW [shematics]( > https://github.com/beagleboard/beaglebone-black-wireless/blob/master/BeagleBone_Black_Wireless_SCH.pdf) > > and the Ohat DAC pinout (did not find the schematics) to connect the 2 > boards. > > connections: > - GND (phat pin 6, 39 <-> BBB P9_1 ) > - 5V (phat pin 2 & 4 <-> BBB P9_5 & P9_6) > - 3.3V (phat pin 1 <-> BBB P9_3) > - I2S LRCLOCK (phat pin 12 <-> BBB P9_28) > - I2S SCLK / bitclock (phat pin 35 <-> BBB P9_31) > - I2S data (phat pin 40 <-> BBB P9_29) > > To test my speaker output i run > `$ speaker-test -F S32_LE -f 48000 -c 2` > > I have no sound (i also tried with aplay to read WAV files and mplayer > just in case) > > > Does anyone has any idea if: > - my connections are bad > - if i must connect the HDMI screen to get the audio output on the I2S bus > (because of OS settings) *i tried with and without the screen without > success* > - if i have to change the drivers (I've read about the botic driver but > the HDMI should send audio on I2S) > > ALso in the future i expect to use GPIO3_21 to add a Master clock (as > apparently the BBBW is limited to 48kHz sample rate family) > > Thank you in advance for any help > > Best > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/ef84c136-cf50-4c48-a341-12b79178e278%40googlegroups.com.
