data transfer between arm and dsp

Mitul Vekariya

I am new to TI's keystone architecture.

I want help regarding one program. Say I have one program in linux os that produce some data. I want to find fft of that data, but I want to use dsp. So I need to transfer data to dsp- tell dsp to do the job and transfer back the results to linux and display it on the screen.

Please point me to right tutorial or documents. To do so do I need to modify kernel?

Thanks

Mitul Vekariya

over 11 years ago

0 Casey Smith over 11 years ago

TI__Prodigy 250 points

Hi Mitul,

The link below covers various ways to communicate between ARM and DSP:

http://processors.wiki.ti.com/index.php/MCSDK_UG_Chapter_Developing_Transports

Hope this Helps

0 Raja over 11 years ago in reply to Casey Smith

TI__Guru* 81335 points

Hi Mitul,

MCSDK provides high level abstraction component to provide communication between different processors. The MessageQ based IPC is used between ARM to DSP and beween DSP to DSP. For more info, please refer to Transport Section in Exploring Chapter of the Keystone-II User's Guide.

The image processing demo has ARM side master code and DSP slave code. To see how the IPC communication between ARM and DSP is coded, please refer to the source code in mcsdk_bios_x_xx_xx_xx/demos/image_processing/ipc/master/src and slave/src directories.

Also refer below link:

http://processors.wiki.ti.com/index.php/MCSDK_Image_Processing_Demonstration_Guide

http://processors.wiki.ti.com/index.php/MCSDK_Inter_Processor_Communication_Demonstration_Guide

Thanks.

MCSDK: http://software-dl.ti.com/sdoemb/sdoemb_public_sw/mcsdk/latest/index_FDS.html

UG: http://processors.wiki.ti.com/index.php/MCSDK_User_Guide_for_KeyStone_II

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data transfer between arm and dsp