I have a problem about the mSATA connector. I changed the SATA connector to a mSATA connector on my custom carrier board. The mSATA connector only has DATA & POWER pins, not includes a SATA_DEV_SLP pin, thus may cause the problem of identifying SATA disk. And here is the tests I have done:
I changed a TX1 module on my custom carrier board instead of TX2, the SATA disk could be identified. The differents between TX1 and TX2 is the SATA_DEV_SLP signal shown on Page10 on the document of NVIDIA Jetson TX1/TX2 Developer Kit, that means the singal SATA_DEV_SLP do have some effect on the SATA identifying.
I had done another test on the P2597 carrier board: I removed the IC U1 and R315 from the P2597 carrier board, the SATA disk can still be idenfied on the P2597 carrier board, which means the singal SATA_DEV_SLP has no effect on the SATA interface.
From the tests done above, we may get a inconsistent conclusion about the signal of SATA_DEV_SLP. If the SATA_DEV_SLP signal does work on the communication of SATA, how it works? And since I cann’t get this signal on my custom carrier board with the mSATA connector, shall I modify some software in the LIUNX system to make it work?
Could you please give me some advice about it?
Looking forward for you reply, thanks!