Stuck in DDR3 "Procedure for determining DDR PHY register values"

Susan Niu

Other Parts Discussed in Thread: AM3358, AM3352

Hi,

I'm following the procedure in http://processors.wiki.ti.com/index.php/AM335x_DDR_PHY_register_configuration_for_DDR3

Get stuck in below step:

"3. Connect the board to Code Composer and run the GEL file Scripts->AM335x System Initialization. Load the DDR3_slave_ratio_search_auto.out file from above and run the code. The console window in CCS will prompt you for some input values."

I cannot see any prompt after running this .out file, no where to let me input values...the gel file I use is AM335x_15x15_EVM_v1.5.gel, no error shown.

What I can do now?

Thanks,

Susan

over 11 years ago

0 Susan Niu over 11 years ago

Prodigy 130 points

I'm waiting for answers...

Thanks,

Susan

0 Susan Niu over 11 years ago in reply to Susan Niu

Prodigy 130 points

I've been waiting for several days for the answer.

Will TI guys work on this?

Thanks,

Susan

0 Biser Gatchev-XID over 11 years ago in reply to Susan Niu

TI__Guru**** 393215 points

Hi Susan,

The wiki says:

Procedure for determining DDR PHY register values

Files needed for this procedure:
Code Composer GEL file: You can use the AM3358 StarterKit GEL to start with.
Executable CCS .out file: Media:DDR3_slave_ratio_search_auto.zip

Have you tried the StarterKit GEL?

0 Susan Niu over 11 years ago in reply to Biser Gatchev-XID

Prodigy 130 points

Hi BIser,

YES I've been using the Media:DDR3_slave_ratio_search_auto.zip all the time.

When I use the AM3358 StarterKit GEL with our AM3352 board there'll show error: AM335x_EVM_Initialization() cannot be evaluated...

When I use the AM3358 StarterKit GEL with TI AM335x GM EVM board, there isn't anything show up to ask me for any parameters.

Please help on this.

Thanks,

Susan

0 Biser Gatchev-XID over 11 years ago in reply to Susan Niu

TI__Guru**** 393215 points

This is strange. Does your board really have DDR3 memory? The EVM uses DDR2 memory for which this procedure is not necessary. The Starter Kit uses DDR3.

0 Susan Niu over 11 years ago in reply to Biser Gatchev-XID

Prodigy 130 points

YES, we use DDR3, otherwise I'll not post this request.

Regards,

Susan

0 JJD over 11 years ago in reply to Susan Niu

TI__Guru* 81130 points

Susan, you may have the Console window hidden or minimized. Try a View->Console from the menu to see if a Console window appears.

Regards,

James

0 Biser Gatchev-XID over 11 years ago in reply to JJD

TI__Guru**** 393215 points

Hi Susan,

No offence meant, you'd be surprised how many times we have this sort of misunderstandings. Now, I have a couple more suggestions:

You could check this tutorial: http://processors.wiki.ti.com/index.php/Sitara_Linux_Training:_Tuning_the_DDR3_Timings_on_BeagleBoneBlack. It is a step-by-step guide based in the BB Black, but the procedure is the same for all DDR3 boards.

If you have V_TT termination on your DDR3, with a V_TTregulator (like the Starter Kit), please check that the regulator is enabled and supplying V_TT voltage. This is done by a GPIO enable signal on the Starter Kit.

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Stuck in DDR3 "Procedure for determining DDR PHY register values"

Procedure for determining DDR PHY register values