SN75LVCP601 support needed

henry asirvad

Other Parts Discussed in Thread: SN75LVCP601

Hello TI,

We are using the SN75LVCP601 as a SATA repeater, At the input of chip we connected to Mother board using SATA cable and the output of chip was connected to Hard disk. But the hard disk was not detected.

5226.SATA Repeater.pdf

Please go through the above file for reference.

R10: 0 Ohm

R11: Not mounted

We have used all the combinations of DIP switch and also tried by removing all resistors at DIP switch to make DE1,DE2,EQ1,EQ2 as NC.

Please let me know if any thing is going wrong.

Thanks,

Henry

over 10 years ago

0 Elias Villegas M. over 10 years ago

TI__Guru* 76130 points

Hello,

It should work, can you measure Vcc?

Make R10=1k

Do you see SATA traffic on the differential lines?

Can you provide your layout for review?

Regards.

0 henry asirvad over 10 years ago in reply to Elias Villegas M.

Prodigy 30 points

Hello Elias,

Vcc showing 3.3V,

In the beginning itself I have tried with R10=1K

I am attaching the Layout file for your reference.

2388.SATAREPEATER_BOARD.brd

Thanks,

Henry

0 henry asirvad over 10 years ago in reply to henry asirvad

Prodigy 30 points

Hello Elias,

Any update on the query?

Thanks,

Henry

0 Elias Villegas M. over 10 years ago in reply to henry asirvad

TI__Guru* 76130 points

Hello,

I reviewed the schematic and found one possible issue:

The SATA lines for RX and TX are crossing each other, even when they are in different planes there could be cross-talking because you don't have a GND plane between them.

Can you take an eye-diagram of the SATA signals?

The re-driver is pretty straight forward to implement, is the HDD supported by the system? is it having enough power?

Regards

Interface

Interface forum

SN75LVCP601 support needed