TDA2SX: Linux : How to increase TDA2 memory on f Dual OS (Linux & RTOS) from 1GB to 2GB ?

Eten Wu

Part Number: TDA2SX

Our system need more memory to do more algorithm, so our new platforms contain 2GB DDR memory. (M4 does not need to manage the memory area whose memory address is over 512MB)

After reading the URL http://processors.wiki.ti.com/index.php/VSDK/VisionSDK_UserGuide_MemoryMap#Memory_Map_of_the_Application, our adjustments are still fail.

Our testing code on EVE can access at 0xC0000000 ~ 0xD0000000 ( by modify "/vision_sdk/links_fw/src/rtos/bios_app_common/tda2xx/eve_common/tlb_config_eve_common.c" )

But the same testing code on DSP1/DSP2 cannot work. ( Note : the testing code is to access the memory address directly )

There are some error message about omap-iommu fault....

Could you help us ?
Thank you very much.

Regards,
Eten

over 5 years ago

0 Gaviraju Doddabettahalli Bettegowda over 5 years ago

TI__Genius 14305 points

Hi,

By default, DSP will have access to only those sections which are defined in the below memory map file.

vision_sdk\apps\build\tdaxxx\mem_segment_definition_linux.xs

So if you want to access a memory section beyond C0000000 then please add a dummy section in the above file so that it will automatically get accessed from DSP.

For adding a new section please refer section 6.3 of the below doc

vision_sdk/docs/FeatureSpecificUserGuides/VisionSDK_UserGuide_MemoryMap.pdf

Regards,

Gaviraju

0 Eten Wu over 5 years ago in reply to Gaviraju Doddabettahalli Bettegowda

Prodigy 250 points

Hi Gaviraju,

It works.

Thanks for your help.

Regards,
Eten

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TDA2SX: Linux : How to increase TDA2 memory on f Dual OS (Linux & RTOS) from 1GB to 2GB ?