From: <fly...@camaa.org> Date: Friday, June 13, 2014 at 2:12 PM To: John Syne <john3...@gmail.com> Subject: RE: [beagleboard] beaglebone black need help with PCM bus
> Ooh wow, thats not good. > I did a file dump from root of all the files on my BBB > > like this: find > BBB_dump.txt and then searched it for the files you listed > and did not find them on my BBB. > do i need to install something, i am new to this. Since others might be asking the same questions, you should always post your questions to the beagleboard mailing list and not to me personally. The files I¹m referencing are in the Linux Kernel. Follow the instructions in the link below on how to download the Linux Kernel: http://eewiki.net/display/linuxonarm/BeagleBone+Black Regards, John > > Big thanks, > Nathan >> -------- Original Message -------- >> Subject: Re: [beagleboard] beaglebone black need help with PCM bus >> From: John Syn <john3...@gmail.com> >> Date: Fri, June 13, 2014 2:27 pm >> To: <fly...@camaa.org> >> Cc: "beagleboard@googlegroups.com" <beagleboard@googlegroups.com> >> >> >> From: <fly...@camaa.org> >> Date: Friday, June 13, 2014 at 8:23 AM >> To: John Syne <john3...@gmail.com> >> Subject: RE: [beagleboard] beaglebone black need help with PCM bus >> >>> Hi John, could you educate me on how to do this. please, perty please with >>> sugar on top >> This is not a trivial exercise as Texas Instruments have chosen not to have a >> separate driver for the McASP. Instead it is integrated into the sound >> subsystem (ALSA). As far as I know there is no example on how to use the >> McASP so the best you can do is review how audio is implemented on the BBB. >> Start by reviewing the alsa-project.org <http://alsa-project.org> website to >> understand the ALSA terminology and then look through the following files: >> >> /sound/soc/davinci/davinci-mcasp.c >> /sound/soc/davinci/davinci-evm.c >> /sound/soc/davinci/davinci-pcm.c >> /sound/soc/codec/tlv320aic3x.c >> /arch/arm/common/edma.c >> /drivers/dma/edma.c >> >> If you can understand the code in these files, you are off to a good start. >> I have not listed any of the files related to the core sound files nor any of >> the memory management, timers, etc as these will only serve to confuse you >> more. You might want to ask TI on their E2E forums to see if they have a >> simpler way to tackle this task. >> >> >> Regards, >> John >>> >>> >>>> -------- Original Message -------- >>>> Subject: Re: [beagleboard] beaglebone black need help with PCM bus >>>> From: John Syn <john3...@gmail.com> >>>> Date: Wed, June 11, 2014 10:39 pm >>>> To: <beagleboard@googlegroups.com> >>>> >>>> >>>> From: Nate C <fly...@camaa.org> >>>> Reply-To: <beagleboard@googlegroups.com> >>>> Date: Wednesday, June 11, 2014 at 7:57 PM >>>> To: <beagleboard@googlegroups.com> >>>> Subject: [beagleboard] beaglebone black need help with PCM bus >>>> >>>>> I need the beaglebone black to produce a PCM bus >>>>> PCLK 2.048 MHz >>>>> Framsync 8KHz >>>>> DI >>>>> DO >>>>> >>>>> Can someone share with me how to do this? >>>> McASP which you will find under /sound/soc/davinci/ >>>> >>>> Regards, >>>> John >>>>> >>>>> -- >>>>> 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 beagleboard+unsubscr...@googlegroups.com. >>>>> 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/cHftsdJWI_g/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> beagleboard+unsubscr...@googlegroups.com. >>>> 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
