How to use C64x+ DSP core with Linux on Beagleboard-xM

Daisuke Maeda said:

Which version of these can they use?

In addition, they have used DSPBIOS for other device.
Therefore, I think that they can use DSPLink easily.

Can they use DSPLink?

Daisuke,

SysLink is the preferred solution today.  It is actively developed and maintained.  They could use DSPLink, however, along with DSP/BIOS.

DSPLink predates SysLink and has limited maintainence and no active development.  However, if you want to use DSP/BIOS then you need DSPLink, but DSP/BIOS is similar to DSPLink in terms of maintainence and development, i.e., limited and none, respectively.

If using the preferred SysLInk then the customer must also use SYS/BIOS.  The latest GA version of SysLink is 2.10.06.28.

Regards,

- Rob

Daisuke Maeda said:

"A Linux Kernel is needed to compile DSPLink applications. The linking Kernel must be the same version or a compatible version with the Kernel installed on the BeagleBoard."

http://ossie.wireless.vt.edu/trac/wiki/BeagleBoard_DSPLink#LinuxKernel

Is above comment available for Beagleboard-xM?

Daisuke,

Since DSPLink (and SysLink, for that matter) has a component that inserts into the Linux kernel, you need to "point" the DSPLink build at the Linux kernel source that corresponds to the kernel image you're running on the Beagleboard.  Otherwise you will get an error of the sort "invalid module format" when installing it into the running kernel image.

Daisuke Maeda said:

f it is available, I understood DSPLink of all versions is usable for LINUXEZSDK v5.04.00 on Beagleboard-xM.
Is my understanding right?

I don't know the LINUXEZSDK so I can't comment if "all versions" of DSPLink are usable, but I would imagine not.  The foremost suggestion is to use the DSPLink that came with the EZSDK, if any.  If they do package a DSPLink in the EZSDK then you should be able to find where it is and what version it is.  If the EZSDK does *not* package a DSPLink in itself, then the latest publically available GA release is recommended.

Regards,

- Rob

Daisuke Maeda said:

There is not Beagleboard-xM or DM3730 in the Release Notes.
Therefore, I do not know whether DSPLINK or SYSlink is usable on them.

Is DSPLINK or SYSlink usable on Beagleboard-xM?

If it is usable, what should I do to use DSPLINK or SYSlink on Beagleboard-xM?

Daisuke,

The DM3730 is compatible with the OMAP3530 EVM SysLink target.  We have lots of customers using SysLink on the DM3730.  DSPLink also has support for the OMAP3530 target, although we strongly recommend new development to use SysLink.  SysLink is newer and actively developed and more full-featured.

So, unless you have some other situation that requires DSPLink to be used, please use SysLink with SYS/BIOS on the DSP.

Regards,

- Rob

Daisuke Maeda said:

> Note, DSP Link 1.x is intended for DSP/BIOS users.
> SYS/BIOS 6 users (including most EZSDK users) should use SysLink releases!

What are "most EZSDK users"?

I worry DSPLink is not available for EZSDK.

Daisuke,

I can't say what they mean when they say "most EZSDK users".

I believe that for DSPLink-DSP/BIOS usage, you would want the DVSDK.  EZSDK is the followon to DVSDK, basically the next version.  Here is a link to the DVDSK product download page: http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/dvsdk/DVSDK_4_00/latest/index_FDS.html

Regards,

- Rob