topic Re: Config Microphone audio src by Dirana3 in Digital Signal Controllers

Config Microphone audio src by Dirana3

yonghou — Tue, 28 Aug 2018 06:04:55 GMT

The microphone and dirana3 connection is like below:

Microphone --> Dirana3

-------------------------------------------------------

MICIN_D3_ADC2_P -> SAF775x: ADC2_IN

MICIN_D3_ADC2_N-> SAF775x: ADC2_REF

and Microphone audio will output from Dirana3: IIS_SD_OUT0 to SOC part.

my question is:

How to configure the dirana3 to make sure the microphone source can route from ADC2_IN/REF to IIS_SD_OUT0 ?

in another words: How to do configuration of the dirana#3 to support MIC -> dirana -> SOC ?

Re: Config Microphone audio src by Dirana3

xiangjun_rong — Tue, 28 Aug 2018 06:29:45 GMT

Hi, YongHou,

Regarding your question, I suppose that you use SAF or TDF radio families, unfortunately, this is DSC formula, we do not support the radio family, I am sorry.

Xiangjun Rong

Re: Config Microphone audio src by Dirana3

tobin_tomy — Tue, 18 Sep 2018 06:01:32 GMT

Hi Xiangjun,

In Dirana 3, we have 2 EPIC cores and 1 Hifi core is there for Audio Processing. As per my initial level of understanding, EPIC cores will take care about the audio routing by some framework API's. I would like to know how the Audio Samples will be processed from Mic---ADC--Receiver--DSP---Transmitter--DAC---Speakers? Is there any Interrupt based DMA/EMDMA in between that? Since I am new to Dirana 3, It would be helpful if you are able to suggest some supportive document for the same. Thanks in Advance.

Re: Config Microphone audio src by Dirana3

tobin_tomy — Tue, 18 Sep 2018 09:48:34 GMT

@ xiangjun.rong Can you Suggest, which group is supporting for SAF Families? Even I am also looking into the same ?