We just used a proto cape to expose the McASP pins we needed, then ran wires over to a set of TI SmartAmp boards which supported TDM at the time.
Picture: https://dl.dropboxusercontent.com/u/82765462/BBB/4channel_audioCape.jpg On Fri, May 29, 2015 at 11:13 AM, Jeffrey Huang <jh...@cornell.edu> wrote: > ooh that's pretty cool! Hopefully it will work for me as well. > > Did you have to build your own TDM cape, or could you just stack them and > use the Am335x to do the multiplexing > > On Friday, May 29, 2015 at 1:47:47 PM UTC-4, Jesse Forgues wrote: >> >> I think I tested 8 or 16 CH TDM at 48k and it worked fine. >> On May 29, 2015 10:37 AM, "Jeffrey Huang" <jh...@cornell.edu> wrote: >> >>> We were considering that, but were concerned if we could find a fast >>> enough mux to do 6 channels at 48kHz, and that plus clock issues. >>> Thanks for the idea, though! I will check out how the Am335x fares in >>> TDM. >>> >>> >>> On Wednesday, May 27, 2015 at 9:34:56 PM UTC-4, Jesse Forgues wrote: >>>> >>>> You could make a stackable TDM cape I guess? >>>> Each codec/cape board could pick off its own channel from the McASP/TDM >>>> port... >>>> >>>> I like that idea... >>>> >>>> On Wed, May 27, 2015 at 2:11 PM, <jh...@cornell.edu> wrote: >>>> >>>>> So I'm thinking about using the BeagleBoneBlack for multichannel audio >>>>> DSP, but there are still some questions I have about it. >>>>> >>>>> Since the audio capes are stackable, and you can assign each one a >>>>> unique address, and the AM335X uses McASP, I should >>>>> be able to process multiple channel input separately on the board, but >>>>> choose to output the resultant signal on only use one of the capes? >>>>> >>>>> -Jeff >>>>> >>>>> -- >>>>> 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...@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...@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. > -- 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.
