Questions tagged [sata]

SATA (Serial ATA) is a serial bus typically used to connect a PC to mass storage devices. It was developed as a replacement for the ATA parallel bus and offers many advantage including hot-swapping, increased transfer speed and reduced cabling cost and size because fewer conductors are required.

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What does it mean to assign a conductor?

I am reading about SATA power here. They say the following: The power cables for the SATA interface are of similar construction as the signal cables, but have 15 conductors. They supply power to the ...
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Is it safe to connect USB 2.0 ground with SATA ground?

I'm building fan controller for my PC water cooling loop, it will consist of: 1x Raspberry Pi Pico, 6x 3-pins fan headers, 0.5A max each, 1x water pump header, 2.5A max, 1x thermistor header for ...
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Why does S.M.A.R.T work the way it does? [closed]

According to Wikipedia : S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology; often written as SMART) is a monitoring system included in computer hard disk drives (HDDs), solid-state ...
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Is 3.3 v necessary for basic functionality of any SATA drives ? How to check if a drive uses it?

Am I correct in understanding that no SATA hardrive needs 3.3V for "basic" (identification/read/write) operations? Should a drive have 3.3V specs written on its front along with 5V and 12V ...
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What kind of sata connector is this?

I have an HP motherboard that has some SATA connectors that I'm not familiar with. What kind of connector is it?
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PCIe PRST pin functionality at M2 connector (B) with SATA device (reboot detection)

M2 connector type (key B) support PCIe ×2, SATA, USB 2.0 and 3.0, audio, UIM, HSIC, SSIC, I2C and SMBus. I want to use SATA interface with my device, but I need to detect the reboot of the host ...
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FPGA-based SSD host controller without transceivers

Problem: I am looking for options to design a host controller for SSD (SATA or nVME) using transceiver-less FPGA. Question: What are the current state-of-the-art practices of doing such designs? My ...
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Is Fly-By Topology for SATA possible?

I have a single sata lane on host side. I want to connect dozens of hard disks to the lane using analog switches or multiplexers, instead of chainning multiplier chips (avoiding possible firmware and ...
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PCIe - SATA bridge/host controller ICs unavailable to the hobbyist/from low volume suppliers?

I was toying with the idea of a project that would involve adding a SATA device to an existing PCIe lane; probably far too ambitious for me, but before I could confirm that I noticed that there aren't ...
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SATA to mmc with custom FW

I want to minimize the price of the device (board) with the next functionality: it connects to M2 and supports SATA to internal emmc memory (access to memory through functional block). That functional ...
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can I repair part fried socket

As image shows the power socket is fried, is there a method to repair it? BTW this is only the fried 4 pins is for +12v and the ground, one +12v still ok but don't know if it enough.
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SATA 3 to M.2 conversion

I'm designing a PCB that should (among other things) include an M.2 SSD slot and convert that to a SATA slot to be connected to a computer. I considered just soldering a commercial SATA-M.2-adapter ...
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2 votes
1 answer
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Need Help Creating SATA Power Cable for Lenovo C540 AiO

I need expert help. I have an old Lenovo C540 AiO desktop that I am trying to salvage. This model is prone to a failure in the SATA power cable, at the HDD connector end. I have found video guides on ...
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Chip Operation Mode selection in binary

For my project, I would like to design my own SATA->USB-C adaptor. For this, I'm using the Odroid schematic (here), and also the schematics of Cubieboard (here). My question is about the JMS539 ...
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Is there a minimum length for SATA cables?

Today I stumbled across a piece of information that surprised me. Apparently there is a minimum cable length for SATA. From Seagate, a reputable manufacturer of SATA devices: Serial ATA (SATA) data ...
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Is it reliable to use old computer hard disk as an external hard drive to store data? [closed]

I have a hard drive which cannot boot windows but works for even at higher transfer rates also its 6 years old, I found cheap enclosure SATA to USB 3.0 enclosure that works for even 100Mbps transfer ...
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open source SATA to DDR2 SDRAM adater

I want to learn how computer memory sticks can be used as secondary storage using some intermediate FPGA for data processing. Actually I want to design a PCB myself. I'm good with PCB designing but I ...
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SATA power connector usage

I'm making a small device that I want to power by the sata power connector/ATX PSU. It needs 5v and 12v power supply. This device will use standard 15pin SATA power male connector to get the power ...
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Meaning "Colay with mSATA"

In a datasheet of a embedded device (this one in my case) what does it mean that the PCIe bus is conneceted to a socket that says "Full-size Mini-PCIe (colay mSATA)"
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3 votes
1 answer
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M.2 PCIe x2 and SATA connections and key/notch with SATA/PCIe x4 SSDs

For my current project I am adding an M.2 slot for additional storage. Even though SATA data throughput is more than sufficient I would like to support both SATA and PCIe based SSDs, as I dont know ...
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3 votes
1 answer
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How to convert SATA power port to Slimline power port [closed]

I want to convert 15 pin SATA to 6 pin Slimline but there is problem the 15 pin SATA contain 3 "+5V" and 6 ground but the slimline one only contain 2 "+5V" pines and 2 ground with 2 additional pines ...
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2 votes
2 answers
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SATA 2.0 to M.2 (NGFF) design

I am designing a PCB with a A20 (allwinner) SoC. This SoC has a SATA 2.0 host (RXP RXM TXP TXM) that I have to route to a M.2 "M" key connector. I found only one source for pin out, but I can't find ...
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Turning on PC PSU with current or bridging PS_ON and COM/GND?

I really hope title is specific enough. What I am trying to achieve is that using a SATA Extension Cable to PS4 you can plug in a 15mm 2.5" Laptop Drive or 3.5" Desktop Drive and the issue is that ...
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2 votes
1 answer
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Help identifying a possible connector for these unterminated contacts on my HP Stream 14 motherbard

I'm trying to identify the appropriate connector for this bundle of unterminated contacts, from my HP Stream 14 motherboard. I'm talking about the red circled part of the motherboard: Here's a close ...
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Molex to SATA power adapter from a Cooler Master modular PSU?

I know this might sound weird at first, but hear me out. I have an old 400W PSU, which I plan on using in my headless server. It won't be anything crazy. One problem: It comes with only two SATA power ...
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SATA as transport medium for external device [closed]

I have free sata connector in my laptop and I've wondered if is there any option to use SATA as some kind of data transmission, like USB. Will i need to write my own drivers? Bottom line is: i want ...
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SATA Connector for GTP transceivers [closed]

i have a Artix7 board with 4 SATA connector on it, i want to use these connectors for GTP transceiver, just connectors and i don't want to use SATA protocol, actually i do not know how to write XDC ...
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1 vote
2 answers
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SYNC Escape in SATA

I have a FPGA in which I have implemented SATA Host and a SSD as the device. The communication b/w them is occuring at SATA 3.0(6 Gbps). I have a situation in which during write transaction I receive ...
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1 vote
1 answer
2k views

Is mechanically switching SATA drive signals possible?

Since SATA has made it possible to do all data interfacing to a drive through 4 wires, what I'd like to do is physically route two SATA ports to two drives, through a switch that simply swaps them. ...
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Scrambler vs 8b/10b encoder

I was going through SATA3 spec. As per the spec, both scrambler and 8b/10b encoder are used in its design. Scrambler helps randomizing the data while 8b/10 encoder creates enough transition for DC ...
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SATA Link layer Idle state primitive synchronization failure

I am currently working on interacting with SSD memory through a FPGA using SATA protocol. I am using a Xilinx KC705 evaluation board and SSD is from Samsung. I have connected the SSD device to the ...
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1 vote
1 answer
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Fan PWM Emulation with SATA power

I am just getting into electronics, and I thought I knew enough to make a simple fan control circuit. The idea is that I can install a switch into my PC case that I can press in order to add a fan ...
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4 votes
1 answer
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SATA controller on Artix 7

Problem background: My ultimate aim is to implement a SATA host controller on an Artix 7 FPGA. Having said that I am first focusing on the physical layer. Through my research I have found and read ...
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SATA compliance test

Is there anyone familiar with the SATA interface compliance? I'm curious about the testing method. For TX test, there are PHY/TSG/OOB test items. And, there are BIST-L and BIST-TSA mode defined in ...
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Turn on and off SATA drives

I'm building a small server, and I was planning to add a smaller disk to perform backups. The problem, here, is that ideally the smaller disk should be turned on just when performing the backups and ...
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4 votes
1 answer
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Does the separation of the differential pair shielding of a SATA cable matter?

Basically I want to replace a consumer grade SATA cable with something a bit more tolerant to high temps and other environmental stresses. The general cross section of a SATA cable looks like this: ...
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6 votes
3 answers
24k views

What is the power specification for SATA?

We are designing a product which needs to provide data and power to an SSD connected using SATA. However, we cannot find a specification of the power requirements for a SATA connector. How much power ...
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1 vote
3 answers
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Profiling for FPGA requirements for a high-performance camera

I would like to know how to do the profiling of an image acquisition and storing pipeline on an FPGA based system, capturing images from a CMOS image sensor through LVDS interface, do some basic image ...
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-4 votes
3 answers
1k views

Drawing too much current from a SATA power Y-cable? [closed]

I'm planning to use a Y-cable to split one of the power connectors inside of a notebook. Now if I connect a harddrive to the Y-cable, could another device soldered to the Y-cable draw so much current ...
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Why SATA ALIGN primitive is shifted or swapped on 7-Series GTXE2 transceiver RXDATA output?

I am using a Xilinx 7-Series GTXE2 Transceiver configured as SATA host PHY. This transceiver is interfacing with an SATA Host controller and an SATA Gen1 device. During initialization, I am able to ...
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4 votes
5 answers
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Implementing/using a SATA controller

I start by saying that I'm not an electrical engineer, I've got a basic understanding of things from school and from work (I'm a long time computer programmer), but this is not much my field of ...
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1 vote
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M.2 Daughter card interface

I am planning to use M.2 daughter card in a design. I know that M.2 form factor support various type of cards like LTE, Wifi, BT, SSD etc. My doubt is that what is the host side interface for these ...
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SATA over unshielded cable

I need to connect a SATA device to a development board which does not have a dedicated SATA connector but exposes SATA over a common 2x30 female header instead. My question is what cabling do I need ...
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Use different footprint for a SATA connector

I am designing an Linux Board which needs a SATA connector. Now im faced to choose between 2.5 HDD SATA connectors and the new mSATA (mini PCI express) connectors. For compatiblity and usuabillity ...
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Are ATA and SCSI commands implemented differently from vendor to vendor?

While researching the SATA and SAS interfaces, I began to wonder how certain ATA and SCSI commands/features are implemented from one vendor to another. In other words, while the hardware interfaces ...
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20 votes
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Why does the SATA power connector have so many pins?

With only 4 cables, two of which are ground, it seems like it has way too many pins. Why is this so?
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14 votes
3 answers
7k views

Is USB-C a technically viable substitute for SATA Express connectors?

SATA Express, the successor to SATA, is too new to be widely used yet, but the advancing speed of SSDs appears to make it inevitable, the same as SATA replaced parallel IDE. Despite the name, it isn't ...
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Joining a raspberry Pi to an external hard disk cage power supply

I have an external SATA hard drive enclosure that has its own power input. I would like to be able to run a Raspberry Pi from the same power input. The enclosure takes a 12VDC input (currently I'm ...
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6 votes
1 answer
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Configuring a 7-Series GTXE2 transceiver for Serial-ATA (Gen1/2/3)

Hello this will be an experts questions :) You should be familiar with the following topics Xilinx Multi-Gigabit-Transceivers (MGTs), especially the 7-Series GTX/GTH transceivers (GTXE2_CHANNEL) ...
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Slimline SATA adapters

I've been lurking around the net for days trying to find a Slimline SATA to mSATA\microSATA adapter, the only one remotely related is the laptop optical bay HDD\SSD enclosure which I already have and ...
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