DRA746: How to do SATA eye pattern test

Daniel Cheng1

Mastermind 7075 points

Part Number: DRA746

I want to test the SI of sata ports on my board.

How to make DRA746 generate SATA eye pattern signal?

SATA_BISTCR bit 18(TXO) and bit 3:0 (PATTERN) are for the transportation quality tes?

Thank you!

Daniel

over 5 years ago

0 B.C. over 5 years ago

TI__Genius 16906 points

Yes, correct.

0 Daniel Cheng1 over 5 years ago in reply to B.C.

Mastermind 7075 points

Hi B.C.

Could you provide the document or steps about "How to make DRA746 generate SATA eye pattern signal"?

Thanks

Daniel

0 B.C. over 5 years ago in reply to Daniel Cheng1

TI__Genius 16906 points

Unfortunately, there is no documentation available on how to use these registers to output a test signal. All electrical validation was done via the standard compliance method that involves connecting the SoC to test equipment which automatically puts it into a test mode.

The SATA interface has been validated to pass the compliance eye mask under all silicon conditions.

0 Daniel Cheng1 over 5 years ago in reply to B.C.

Mastermind 7075 points

Hi B.C.

Thanks for your help

My customer want to do SATA test such as the compliance eye mask by himself.

Could you give him some suggestions?

Thanks

Daniel

0 B.C. over 5 years ago in reply to Daniel Cheng1

TI__Genius 16906 points

No documentation or support is available for performing the SATA eye mask test in an embedded system. TI has performed the eye mask test in a validation environment with test equipment attached.

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DRA746: How to do SATA eye pattern test