Take a look at this http://www.tjaekel.com/T-DAC/ !



2014-06-17 21:05 GMT-03:00 Gláuber Brennon <[email protected]>:
> Hey André,
>
> Is I2S =  Inter-IC Sound?
>
> I saw some info about this a long time ago and idk much about this
> subject, but i'll tell you what i know / i think i remember.
>
> U will need to make some DSP stuff, but I don't know which filter u
> have to do... I'm not that much into with DSP yet...
>
> But ur modem should have some type of Clock pin as I2C, sampling size
> set pin (to set the size of ur readings for DSP) and two pins for
> audio in and out.
>
> Audio out should be connected to some ADC... (And  Audio in to DAC)
>
> I hope this help you :)
>
> 2014-06-16 22:31 GMT-03:00 André Prado <[email protected]>:
>> Btw I am using Debian Linux arm 3.8.13-bone49 #1 SMP Fri May 2 06:36:13 UTC
>> 2014 armv7l GNU/Linux
>>
>>
>> On Mon, Jun 16, 2014 at 10:28 PM, André Prado <[email protected]>
>> wrote:
>>>
>>> Hello I am using Linphone in my BBB and it works fine using the Audio
>>> cape, I can talk with my notebook just fine.
>>>
>>> I can also use a GSM Modem sending AT commands via RS232 Cape, I can hear
>>> and talk in the GSM modem analog input/output just fine, calling my
>>> cellphone and etc.
>>>
>>> Now I want to take the audio cape out of the way and talk I2S directly
>>> with the GSM Modem.
>>>
>>> Can someone help me? I am really having a hard time with this task, a
>>> north would be great.
>>>
>>>
>>> --
>>> Atenciosamente/Regards
>>> André Castelan Prado
>>
>>
>>
>>
>> --
>> Atenciosamente/Regards
>> André Castelan Prado
>>
>> --
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>
>
>
> --
> Att,
> Gláuber Brennon
> Linux User #559768
> Graduando em Engenharia Mecatrônica - UNIFACS
> GREENBELT em 6Sigma



-- 
Att,
Gláuber Brennon
Linux User #559768
Graduando em Engenharia Mecatrônica - UNIFACS
GREENBELT em 6Sigma

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