Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [csi]

32 questions
7
votes
4 answers

Can two 802.11n devices communicate via a coaxial cable?

Coaxial cables with RP-SMA connectors are often used as extensions for external antennas / with software defined radios. What would happen if I were to connect two access points (wifi chips, via their antenna ports) using a coaxial cable? Would they…
Geosearchef
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5
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0 answers

Interfacing with MIPI CSI-2 camera sensors like the Omnivision OV2732?

CSI-2 is used in pretty much every smartphone however I'm struggling to find much information on how most companies receive and control CSI-2 sensors. I understand there are NDAs. This is not for a hobbyist project, however I'm a beginner on this…
BenAdamson
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3
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3 answers

Why does Camera Serial Interface (CSI-2) have multiple data lanes?

I have been reading through the CSI-2 spec and some controller documentation and I see that it has up to 4 data lanes. If data is transferred on 4 lines at a time then how is it a serial interface anymore? Isn't it a parallel interface now? And how…
Pratyush Yadav
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3
votes
1 answer

DIY Webcam (MIPI to USB)

I'm looking to purchase a webcam (or several) for live streaming since I'm stuck in my house for the indefinite future because of the coronavirus. However anything halfway decent is completely sold out right now because hoarders are buying all the…
newothegreat
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3
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1 answer

How can I run a Raspberry Pi compatible MIPI CSI camera on a Rock Pi 4 b?

I am trying to run a MIPI CSI camera on a Rock Pi 4 but I can't figure out how to get it working. I have the Rock Pi 4b running on Debian (Linux) and the camera is plugged in and the power LED is lit. I have found for a Raspberry Pi you type "sudo…
orange1234
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2
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0 answers

Is it possible to connect CSI-2 camera to CSI-1 port?

I'm not hardware engineer and I have no idea if it would possible connect CSI-2 4k camera to CSI-1 port in snapdragon board? Do I need any adapter or it will work straightaway? Is any other pitfalls I may expect?
Arsenius
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0 answers

How does transmission rate scale with number of of lanes in MIPI CSI2?

What I'm actually interested in is how non-MIPI data is converted to CSI2. Say I'm feeding a P-bit pixel to a CSI2 camera with n data lanes, how are the bits shared among the data lanes? If the pixel was serialized into a P-bit word, or if the pixel…
FartVader
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1 answer

Difference between SPI and CSI?

I want to know the difference between Serial Peripheral Interface(SPI ) and the Clocked Serial Interface( CSI).I know that both the protocols are serial in nature and differ in number of signal lines. I want to know when is CSI preferred to SPI and…
IamDp
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vote
1 answer

What provides the clock signal in CSI2 interface?

What provides the clock signal for the CSI2 interface used for many cameras? Does the camera provide it or is it the processor the camera is interfacing to?
FourierFlux
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vote
1 answer

MIPI C-PHY Signal Routing

I've been looking for a good, definitive reference example for MIPI C-PHY signal routing and have come up short. Bear in mind that C-PHY uses a set of 3 signals per lane, with multi-level coding between them. This is different than D-PHY which uses…
hacktastical
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vote
1 answer

Connecting multiple MIPI CSI Cameras

I need to synchronize 4 multiple MIPI CSI Cameras. I'm using the following MCU https://www.nxp.com/products/processors-and-microcontrollers/arm-microcontrollers/i-mx-rt-crossover-mcus/i-mx-rt1050-crossover-mcu-with-arm-cortex-m7-core:i.MX-RT1050 I…
John
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1
vote
1 answer

How do cheap Raspberry CSI-2 cables get around differential impedance matching

I am trying to design a circuit on (double sided) flex PCB that happens to have CSI-2 signals on it. I would like to find out what is wrong with my deductions presented below, or what part of differential signaling have I misunderstood. When I tried…
JacobV
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1 answer

Using SerDes with Jetson Xavier AGX

I need to incorporate two types of cameras (2x connected by a long wire + 7x connected near the Xavier). For such lengths, I had to use a Serializer-Deserializer (SerDer) to make the camera wires more than 4m long. For the camera, we are left with 3…
Pe Dro
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1
vote
2 answers

USB 3.0 VS MIPI CSI-2 camera interface on Embedded Linux system. Which one is better from both hardware and software perspective?

I have a Sony FCB series camera (1920x1080) and looking for a better interface protocol to connect it with processors like NXP, TI or any similar embedded processor. The camera has a LVDS out port but I have seen that no processor has LVDS input, so…
Hardik
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1 answer

Interfacing with MIPI camera sensors

I want to create an electronics project that will involve cameras. Though i want to create my own system, i want to create my own PCB and not be dependant upon existing solutions like development boards or raspberry pi. I have come along sensors…
user1584421
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