Hi, can you share some of the software drivers/hacks that you used to get the ADC to work properly? Thanks!
El viernes, 15 de noviembre de 2013 12:51:30 UTC-3, Seppo Nikkilä escribió: > > A couple of years ago I designed and prototyped with the original > BeagleBoard a single channel 24-bit, 192 kS/s high-quality audio DAC and an > I2S driver for it. Works great. > The design is based in the TI PCM1792A chip > I am now planning to make it even better but have a few more urgent > projects ahead of it. > > I also designed a 24-bit, 192 kS/s single channel audio ADC board with a > phantom microphone power connection. > Built a few boards but never had the time to test them. The design is > based on the AKM AK5294A audio ADC. > > Both boards use the expansion pins of the original BB and a few software > tricks to get the necessary speed. > > I am willing to join a project aiming to 20+ bit real life performance in > digital audio. > If you talk about 32 bits, I am not interested... > > siñ > > > On Fri, Nov 15, 2013 at 3:27 PM, Gerald Coley > <[email protected]<javascript:> > > wrote: > >> Audio on HDMI is an output only.It cannot receive data. >> >> Gerald >> >> >> >> On Fri, Nov 15, 2013 at 2:54 AM, <[email protected] <javascript:>> wrote: >> >>> Hi there! >>> >>> I am currently working on a project involving some audio processing. An >>> analog to digital stereo converter that can sample at 96k with 24-bit >>> resolution is being used in conjunction with an external microphone to get >>> digital audio data. This converter outputs data using the I2S bus >>> specification (three pins: clock, word select, and data). My goal right >>> now is to get the data outputted from this external ADC onto the BBB and >>> stored in a file. My understanding is that the BBB supports I2S through >>> the usage of HDMI. Is it possible to do what I want using the built in >>> HDMI chip? If so, could you point me in the right direction to get this >>> working? Or will it be easier to write my own code to interface with I2S >>> using three GPIO pins? >>> >>> Thanks for any insight and help. >>> >>> Regards, >>> N0 Loggers >>> >>> -- >>> 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/groups/opt_out. >>> >> >> -- >> 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/groups/opt_out. >> > > > > -- > Developing next generation wireless audio > -- 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/groups/opt_out.
