CCS/TMS320C6748: Sending audio data from the DSP to the CODEC (both on the evaluation board)

user4903213

Part Number: TMS320C6748
Other Parts Discussed in Thread: TLV320AIC3106

Tool/software: Code Composer Studio

Hi,

We are a group of student of Polytechnique Montreal University working on a projet to localise a talking person in a room and focusing on it. We are working with the TMS320C6748 DSP Development Kit (LCDK), and we are trying to send audio data from the DSP to the TLV320AIC3106 Low-Power Stereo Audio CODEC, which is on the LCDK. In fact, we don’t use the ADC of the Codec, but another ADC plugged to the DSP.

After many tries, we still can’t hear the audio data we are trying to send from the DSP to the Codec. Do you have an example of code that send audio data from the DSP to the Codec ?

Thank you

over 8 years ago

0 Yordan Kovachev over 8 years ago

TI__Guru**** 161600 points

Hi,

Check the following discussion:
e2e.ti.com/.../472342

Best Regards,
Yordan

0 user4903213 over 8 years ago in reply to Yordan Kovachev

Prodigy 40 points

Hi,

I downloaded the MCSDK 01_01_00_02 package. I am trying to run the MCASP_AudioExampleProject with a line in and a line out for the audio, but it is not working. Is there something we still have to modify with the example?

Thanks

0 user4903213 over 8 years ago in reply to user4903213

Prodigy 40 points

The examples with Starter Ware are not working either.

0 Rahul Prabhu over 8 years ago in reply to user4903213

TI__Guru** 116170 points

Please provide more information than just examples are not working as it gives us no information to analyze your failure condition. Please provide following answers.

1. What is your hardware setup with LCDK? Is the EVM connected in no-boot mode. When connecting using CCS are you initializing the SOC using GEL files. Is the Line in connected to audio input and the output connected to speaker or a headphone.

2. Are you using pre-built binary or have you rebuilt the examples. what version of software and compiler are you using.

3. What debug steps have you performed. Did you connect a scope to CLK and see if the bit clock and data is available.

Regards,
Rahul

0 user4903213 over 8 years ago in reply to Rahul Prabhu

Prodigy 40 points

We found the problem finally. We had a problem with the DAC.

Regards

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CCS/TMS320C6748: Sending audio data from the DSP to the CODEC (both on the evaluation board)