How to have dsp read codec data using Wince6.0/dsplink/omap-l138?

Don Masin

Other Parts Discussed in Thread: OMAP-L138

Hi,

We're using the OMAP-L138 SOM with WinCE6.0 and DSPLINK. I've looked everywhere for example code compatible with DSPLINK that will help us get started with DSP capture of data from the on-board AIC3106 on the LogicPD EVM. Changes would need to be made in the OSD and possibly the BSP, but beyond that, I have no idea where to begin. Could anyone please point me to some relevant code?

Thanks much. D.M.

over 12 years ago

0 Arnie Reynoso over 12 years ago

TI__Expert 6860 points

There is an Audio SOC example that is targeted for the OMAP-L138 device that run Linux the main GPP core. Assuming, you validated and have DspLink samples application's running on your setup. This should be a good starting point. http://processors.wiki.ti.com/index.php/Audio_Soc_example

NOTE: Beside DSP/BIOS 5.x and DspLink, the DSP-side Audio SOC application requires an EDMA3 Low-Level Driver and DSP/BIOS Platform Support Package for BIOS5.x for it to build successfully . All these packages are provided in the Linux DVSDK for the OMAP-L138 but can be separately downloaded from TI's Embedded Target Content page:

http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/index.html

0 Don Masin over 12 years ago in reply to Arnie Reynoso

Intellectual 580 points

Hi Arnie,

Thanks much for your reply. I saw that example, but it's actually for Linux. We're using WinCE6.0. There may be a way to isolate processor independent code, but I think including everything would be very difficult. I don't have the edma3 driver or psp installed other than what I have from the WinCE6.0 and BSP.

1) Are you aware of any working examples for WinCE6.0/DSPLINK? I couldn't find anything.

2) Any other options for us?

Thanks, D.M.

0 Arnie Reynoso over 12 years ago in reply to Don Masin

TI__Expert 6860 points

I'm not a WinCE developer by any means but I'm aware that others have had success using DspLink on an OMAP-L138.

With that said, the standard (Linux) DspLink as a product does ship with a few standard examples. Hopefully others here can point you to them if they have been ported to WinCE.

BTW: The EDMA3 and PSP drivers are independent DSP-side only drivers and shouldn't interfere with the WinCE BSP, unless the BSP drivers are directly leveraging some the the peripherals that are accessible to the DSP (e.g. Timers, EDMA, McAsp/McBsp, I2C, etc). So you might still be able to take advantage of the Audio SOC example to some degree.

0 Don Masin over 12 years ago in reply to Arnie Reynoso

Intellectual 580 points

Thanks for your help with this Arnie. Will take another look at the example, and consider your added information. Hopefully, will run into a CE version of it.

D.M.

0 Arnie Reynoso over 12 years ago in reply to Don Masin

TI__Expert 6860 points

Might also be good to post any of your WinCE specific questions/inquiries on the WinCe forum

http://e2e.ti.com/support/embedded/wince/default.aspx

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How to have dsp read codec data using Wince6.0/dsplink/omap-l138?