From: Evan Davey <[email protected]> Reply-To: "[email protected]" <[email protected]> Date: Tuesday, September 30, 2014 at 12:54 PM To: "[email protected]" <[email protected]> Subject: Re: [beagleboard] Beaglebone Audio Cape Rev B audio Input
> Thanks, I also managed to subsequently dig this up > http://article.gmane.org/gmane.comp.hardware.beagleboard.user/63099. > > I¹ll probably try the same thing but inject the 1.8V from my bench supply. Look at /arch/arm/boot/dts/am335x-bone-common-pinmux.dtsi line 220. These are the pins used to connect to the TLV320AIC3106EVM. The table below shows how I got this working. BBB TLV320AIC3106EVM LTC3603 P9 J17 J16 J15 J5 1 GND 4 5 GND GND 3 3V3 9 3V3 2 VOUT_EN 5 VDD_5V0 3 +5V VIN 7 SYS_5V0 10 SYS_RESETN 14 RESETN 19 I2C2.SCL 16 SCL 20 I2C2.SDA 20 SDA 25 mcasp0_ahclkx 17 MCLK 28 mcasp0_axr2 13 DIN 29 mcasp0_fsx 7 WCLK 30 mcasp0_axr0 11 DOUT 31 mcasp0_aclkx 3 BCLK 43 GND 18 7 1V8D VOUT Regards, John > > > On 30 Sep 2014, at 20:50, evilwulfie <[email protected]> wrote: > >> >> >> http://elinux.org/CircuitCo:Audio_Cape_RevB >> schematics and everything there >> >> >> On 9/30/2014 11:35 AM, [email protected] wrote: >> >> >>> >>> Hi John, >>> >>> >>> >>> Can you please send through details on how you connected the >>> TLV320AIC3106EVM to the BBB - I am trying to do the same thing. >>> >>> >>> >>> >>> Cheers, >>> >>> Evan >>> >>> >>> On Monday, May 19, 2014 12:22:39 AM UTC+1, john3909 wrote: >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> From: Raphael Philipe <[email protected] <javascript:> > >>>> Reply-To: <[email protected] <javascript:> > >>>> Date: Sunday, May 18, 2014 at 3:30 PM >>>> To: <[email protected] <javascript:> > >>>> Subject: [beagleboard] Beaglebone Audio Cape Rev B audio Input >>>> >>>> >>>> >>>> >>>> >>>>> >>>>> >>>>> Hi >>>>> >>>>> >>>>> >>>>> I've acquired an Audio Cape Rev B >>>>> http://elinux.org/CircuitCo:Audio_Cape_RevB for my Beaglebone Black. >>>>> >>>>> >>>>> >>>>> >>>>> Following the instructions I was able to make it work. The audio playback >>>>> is working pretty well. However, I cannot test the audio input. I saw that >>>>> it is a line level input (line in), so it cannot be connected to a regular >>>>> microphone. >>>>> >>>>> >>>>> >>>>> >>>>> I want to test it through an echo scheme. I will produce some sound >>>>> through q source (connected to the line in input of the cape) and check >>>>> the response in the audio output, through an earphone. >>>>> >>>>> >>>>> >>>>> >>>>> I tried to connect the cape line in to the earphone output of an old >>>>> cellphone through a male male jack cable (I saw in some forums that the >>>>> line level is similar to the earphone output of some appliances, apart >>>>> from the impedance difference.). Unfortunately, it didn't work. >>>>> >>>>> >>>>> >>>>> >>>>> The interesting thing is that when the cable is connected to the cape >>>>> audio input and the other connector is unplluged, I can hear the noise >>>>> from static, similar to an unplugged to the amplifier electric guitar . >>>>> >>>>> >>>>> >>>>> >>>>> Can someone suggest me a simple form to test the audio input? >>>>> >>>>> >>>> >>>> I don¹t have the Audio Cape, but I do have a TLV320AIC3106EVM connected to >>>> my BBB and it works fine. You may want to try the following command: >>>> >>>> >>>> >>>> >>>> arecord -r 44100 -c 1 -f S16_LE -t wav -vv -d 25 example.wav >>>> >>>> >>>> >>>> >>>> This will show you a bar graph in the terminal so you can see the input >>>> levels. I would just connect the output from you phone to the line input of >>>> your audio cape. In another terminal, run amixer to adjust the input >>>> levels. >>>> >>>> >>>> >>>> >>>> Regards, >>>> >>>> John >>>> >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Regards. >>>>> >>>>> -- >>>>> 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] <javascript:> . >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> >>>> >>> >>> >>> -- >>> 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]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the Google >> Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/tQpS9jL97iI/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> For more options, visit https://groups.google.com/d/optout. > > > -- > 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]. > For more options, visit https://groups.google.com/d/optout. -- 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]. For more options, visit https://groups.google.com/d/optout.
