Forums - Can not open hardware I2S stream

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Can not open hardware I2S stream
ranson.kou
Join Date: 18 Oct 16
Posts: 2
Posted: Wed, 2016-10-19 00:02
Hi,

 

We met a problem that the return value of the I2S stream is always 0 (so 
it can not be opened on CSRB5342).

dac_a = StreamAudioSink(AUDIO_HARDWARE_I2S, AUDIO_INSTANCE_0, 
AUDIO_CHANNEL_SLOT_0);

The SDK version is CSRB534X_SDK-1.0.6, the hardware is BC-8 Ext 
development board and the chipset is CSRB5342 (not CSRB5348). We've 
switched the SPI selector to PCM/I2S.

Are there any configuration must be set (such as psr), or any patches to 
enable the digital audio hardware?

 

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jonesm
Join Date: 13 Jun 16
Posts: 79
Posted: Tue, 2016-10-25 09:52

There is a patch to enable the I2S interface on the CSRB5342. You need to contact your local Qualcomm sales representative so they can help get you access.

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ranson.kou
Join Date: 18 Oct 16
Posts: 2
Posted: Tue, 2016-10-25 19:19

Hi Jonesm,

Thanks for the reply, I'll contact the local support for the patch. I already have the access to the 534x SDK directory on the support site, can I apply for the access of 534x A2DP directory and download the patch directly?

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jonesm
Join Date: 13 Jun 16
Posts: 79
Posted: Wed, 2016-10-26 09:07

That should be what your local Qualcomm sales representative can get enabled for you. That is the best path moving forward.

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LulaNord
Join Date: 27 Apr 17
Posts: 1
Posted: Thu, 2017-04-27 09:54

Hi..i am a new user here. In my case my team also faced the same issue. The suggestion for me was also same as that there is a patch to enable the I2S interface on the CSRB5342. And my sales representative only resolved my issue.

 

pcb and assembly

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