All Questions
11
questions
3
votes
0
answers
72
views
Designing a U.2 to M.2 NVMe adapter
I'm considering designing my own U.2 to M.2 converter card to make use of the four U.2 (PCIe 3.0 x4) connectors on my motherboard. Commercial products are available for doing this type of conversion, ...
- 10.8k
0
votes
1
answer
3k
views
Designing M.2 socket for SSD
I'm designing a card adaptor which converts from M.2 Key E type to M.2 Key M type (to insert an NVMe SSD into a port designed originally for Wifi cards).
I found some reference design for the M.2 KeyM ...
- 969
3
votes
2
answers
6k
views
M.2 Key E - can it host an NVMe SSD?
I found an SBC which has an M.2 socket for WiFi cards. It's keying is E.
I couldn't decide whether I can plug an M.2 NVMe SSD into this socket.
Key E normally has PCIe x2, which is not as fast as ...
- 969
0
votes
1
answer
686
views
Will a 4 lane PCIe device work if plugged into a PCIe socket the only 1 lane electrically connected
I am designing a motherboard that uses a SMARC format plugin card for the CPU. This card is based on an Intel Atom x6413E CPU. The SMARC CPU card has various interfaces available, including USB2.0, ...
- 101
0
votes
1
answer
333
views
PCIe PRST pin functionality at M.2 connector (B) with SATA device (reboot detection)
M.2 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 ...
- 11
1
vote
1
answer
201
views
Is it possible to leave certain pins of an m.2 slot not connected to their PCIe lanes on a processor?
We are in the process of making a custom board for a System On Module. The System On Module exposes 4 PCIe Gen 2 lanes on its SODIMM pinout. As per our requirement, we are planning on having a WiFi/...
- 23
3
votes
2
answers
1k
views
Multiple PCIe devices in a single M.2 slot
I have a M.2 M-keyed slot on my laptop, and multiple M.2 PCI-e devices that I'd like to use at the same time. I've been looking for a M.2 switch or splitter of sorts but couldn't find anything, so I ...
- 397
2
votes
0
answers
121
views
M.2 to mini PCIE
I have an SBC with the following configuration on the M2 port
If I require a mini PCIE device is it sufficient to make a breakout board and match pin to pin? We have a pcb engineer to handle the high ...
3
votes
1
answer
392
views
PCIe routing for m.2 key e wifi module
I'm trying to make a PCB which include a WIFI module to m.2 key e. For this I'm using a PCIe connection. As HF routing must follow some guidelines, however I'm strugling a bit with the length of the ...
- 81
0
votes
2
answers
72
views
How to inteprepret jumper confiuration guide on PCB?
So I have a M.2 to mPCIe adapter board that unfortunately I don't have any documentation for. The purpose of the board is to allow for a 4g M.2 modem to connect to a PC with a mPCIe slot.
Presumably ...
- 13
3
votes
1
answer
670
views
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 ...
- 615