there is no voice

PENGFEI JIANG

Other Parts Discussed in Thread: CCSTUDIO

Hi!

when i use the example dsk_app (CCStudio_v3.1\examples\dsk6713\bsl\dsk_app) , after rebuilding all,there are 0 Errors, 0 Warnings, 0 Remarks.after loading and running the program, there is no voice .

when the program is running ,pressing switch 0 will result that the LED #0 blink once per second, and add a dummy load work well , but the problem is there is no sound output from the headphone . i can't find where the rub is, can you give me some help, thank you very much.

over 14 years ago

0 desouza over 14 years ago

TI__Guru**** 171104 points

Pengfei,

Such issue may have many roots, including something not properly configured in hardware or even the volume of the headphone being too low (I've seen both scenarios in the past). Therefore I would suggest you to try another example code that performs audio initialization:

If you haven't done so, please download the latest example code from Spectrum Digital support page:

http://c6000.spectrumdigital.com/dsk6713/

In addition to that, check the C6000 Integration Workshop in the Training page in the wiki (check the section Archived workshops in the link below). It includes a very nice and thorough step-by-step procedure to learn about the tools, therefore I think it may be very helpful.

http://processors.wiki.ti.com/index.php/Hands-On_Training_for_TI_Embedded_Processors

Hope this helps,

Rafael

0 PENGFEI JIANG over 14 years ago in reply to desouza

Intellectual 295 points

Hi!

thank you for your reply!

i've already read the C6000 Integration Workshop carefully , and i run the example they provided, but the result is still no voice .

ps. i'm using the dsp/bios 5.33.05 , but the bios used in the example is older version , so everytime i need to change the version of dsp/bios to 5.33.05.

0 PENGFEI JIANG over 14 years ago in reply to desouza

Intellectual 295 points

Hi !

I change another computer and use the ccs3.1 with the older dsp/bios, the problem disappear, the voice come out from the headphone . so i think the rub may be the version of dsp/bios. but i don't know why.

0 desouza over 14 years ago in reply to PENGFEI JIANG

TI__Guru**** 171104 points

Pengfei,

Not only DSP/BIOS, but several other tools changed since CCSv3.1 was released: the two I think may influence the tutorial are CSL (Chip Support Library) and compiler tools.

Therefore it is somewhat difficult to pinpoint the exact issue that may be happening in your specific project, but I would try to migrate it to the newer releases and carefully compare the initialization routines (status registers, etc) between the working and the non-working version.

A few tips that may help you with the process of converting the project are listed in the page below:

http://processors.wiki.ti.com/index.php/Migrating_from_BIOS_4.9_to_BIOS_5.x

I found around in the internet a post that mentions some book references that may help you with your development for the DSK6713 as well:

http://objectmix.com/dsp/148245-ti-board-dsk-6713-audio-applications.html

Hope this helps,

Rafael

0 PENGFEI JIANG over 14 years ago in reply to desouza

Intellectual 295 points

thank you very much! You are so nice.

0 PENGFEI JIANG over 14 years ago in reply to desouza

Intellectual 295 points

Hi!

i want implement a Active Noise Control System(ANC) in c6713. Do you have any learning materials about Active Noise Control(ANC) or the code of ANC in c6713 ? Or do you have any example of audio processing, something like source code.

Any suggestions will be appreciated ！than you！

0 desouza over 14 years ago in reply to PENGFEI JIANG

TI__Guru**** 171104 points

Check the other thread at:

http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/115/t/70937.aspx

0 PENGFEI JIANG over 14 years ago in reply to desouza

Intellectual 295 points

thank you very much!

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