All Questions
Tagged with pcie pcb-design
14
questions
2
votes
1
answer
689
views
PCI Express Lane Reversal for REFCLK
PCI Express supports lane reversal for the lanes.
Can REFCLK+ and REFCLK- also be swapped? That is, connect REFCLK+ from one device to REFCLK- on the other?
- 23
1
vote
0
answers
38
views
Can I connect one PCIE_CLKREQ# pin from SoC to two different devices?
In my design, I'm using VL805 USB 3.0 Host Controller which takes 1 lane of PCIe and outputs 4 ports of USB3.2 Gen 1.
The platform which I'm building is based on AMD V3000 CPU.
My question is, if ...
- 1,067
2
votes
2
answers
1k
views
What is the exact position of the M2 fastener screw's base on the PCB from the slot for 2280 SSD?
I am designing a PCB that uses NVMe m.2 2280 M-Key SSD. I would like to know what is the exact position of the SSD's screw will be located with respect to the SSD slot. The slot that I am using is ...
- 61
4
votes
2
answers
2k
views
6-Layer Stackup - Where to put the Power Planes?
I have a 6-Layer board (See Design) which is an extension that is connected to a motherboard through a Board to Board Connector.
The extension should provide: two USB 3.2 GEN 2 ports, two USB 2.0 ...
- 1,067
3
votes
1
answer
339
views
Mini PCIe vs PCIe layout
I am designing fast digital lines for the first time.
I want to change the PCIe connector of the CM4 IO board to mini PCIe.
I reviewed the AN307: Hardware Design Considerations for PCI ExpressTM and ...
- 173
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
2
votes
2
answers
625
views
PCIe riser card: Does it generate a local PCI clock on riser board?
Does anybody know if a "PCI riser card" generates a local PCIe clock on the riser board that is asynchronous to the PCI clock on the Motherboard, or does the PCIe clock come only from the ...
- 196
4
votes
1
answer
214
views
Why do PCI Express riser/adapter cards have electrical components?
I'm looking to make a custom PCI Express right angle adapter because the ones on the market don't work with my space constraints. Now, because it's basically an extension cable, I'd imagine it should ...
- 95
3
votes
1
answer
5k
views
Minimum requirements to interact with PCI Express
I have a relatively simple project (from the user point of view) in mind. I want to develop a very simple PCI Express (x1) card that users can put into their system and toggle some GPIO's from a GUI ...
- 775
0
votes
1
answer
512
views
PCB Design - Mini Pcie Express to Thunderbolt 1 2/Mini Display
What I want to achieve is to connect a Mini Pcie Express device to a thunderbolt (1 / 2) port. I have looked around and such connector does not seem to exist, so as a computer engineer I went looking ...
0
votes
1
answer
281
views
PCIE branching not detecting PCIe device [closed]
I am facing an issue with the PCIe in my circuit. The PCIe detection is not happening.
We are using an imx6q processor board plugged into our carrier board . The processor board comes with option of
...
- 145
6
votes
2
answers
6k
views
PCIe Layout and Signal Routing
I'm looking to build a simple board that has a 16x PCIe connector, that seats a compatible PCIe video card.
I can find the connectors and create a footprint, on the board. I can find and understand ...
- 1,907
0
votes
1
answer
2k
views
6-Layer Stackup for PCI express design
I'm pondering over a stackup for a 6-layer board using a couple of PCIe connected ICs.
My first idea was to use the following Stackup:
Signal
GND
Power (Multiple power supplies, so it's a split ...
- 976
2
votes
3
answers
766
views
Guidelines on branching of a PCI express signal
We have 3 PCIe slots on a board, let's call them A, B and C. On this board, slot A will always be populated with a PCIe device, however, among slots B and C, only one of them will be populated.
There ...
- 2,260