Working with beagleboardXM DSP

Hi Tamir,

Programming of the DSP could seems to you complicated work if you have no experience but I will point you a starting point to start using the DSP/BIOS which is a scalable real-time multi-tasking kernel, designed specifically for the TI's DSP platforms. You could become familiar with DSP/BIOS reading the DSP/BIOS Getting Started guide at the link:

http://processors.wiki.ti.com/index.php/SYS/BIOS_Getting_Started_Guide

and

http://downloads.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/bios/sysbios/6_35_02_45/exports/bios_6_35_02_45/docs/Bios_Getting_Started_Guide.pdf

A good place for your further questions about DSP programming using DSP/BIOS is the TI-RTOS Real-time Operating System Section of the TI E2E Support Community which could be contacted at the link:

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

BR

Tsvetolin Shulev

Dear Tsvetolin

I have a lot of experience with the DSP/BIOS, I also understand SYS/BIOS has the same API principles.

My problem is the ARM side of the ARM+DSP combination - how do I start working with the combination of both? I'm not sure if I have to download and compile a kernel for the ARM, with the dspbridge driver, or can I just use the DVSDK v4 as it is. I need help making the initial connection between ARM and DSP, just getting to load the DSP from the ARM side.

Once this connection is established, i'm all good.

many thanks

Tamir

Tamir,

I'm sorry for my incomprehension. Now I understand what exactly you are looking for. I suggest you a link to the public resources about DSPBridge where you can find building instructions, programming guide, API samples and etc:

http://www.openomap.org/pub/dspbridge/

BR

Tsvetolin Shulev

Dear Tsvetolin

thank you very much for your help

I'll describe the full story:

I already downloaded the samples and compiled part of them. I compiled the ARM side and DSP side. The only thing missing was the driver (tidspbridge). I started looking for it and ran into several kernel trees which looked related to the omap3 and I also ran into the dvsdk software.

I found most of this through the omapedia.

The problem was that i couldnt find the driver in each of those projects. in omap3 kernel project i found the code, but the kernel project could not been built.

in this last resource you posted, i think i can see the driver code, so i'll try again. Hopefully it will be tomorrow morning. I'll update.

thanks for now

Tamir

Dear Tsvetolin

I've managed to compile most of the parts of the dsp samples, but i didnot manage to compile the most important part - the bridge driver itself. When i tried to compile it, i understood i need a linux kernel to work with.

i tried following the instructions at

http://elinux.org/BeagleBoardUbuntu

and also

http://omappedia.org/wiki/DSPBridge_Project

but i couldnt make it work.

before compiling the 2.6 kernel, i ran the "make menuconfig" command. i got the menu, but when i browsed to the staging drivers, there was no "DSP Bridge Driver" option, as the instructions suggest.

Can you please direct me to a suitable kernel?
Is there a valid document that I should check?

thank you very much

Tamir

Hi Tamir,

Could you specify which repository use as argument for git clone because at the linked there are two options for repository - git://git.omapzoom.org/repo/omapkernel.git or git://github.com/beagleboard/kernel.git .

The article titled DSPBridge Project is last updated at 10 May 2010 and since then some changes has been made with the sources therefore I suggest you to search in git branches for a suitable branch which has "DSP Bridge Driver" option.

BR

Tsvetolin Shulev