Questions tagged [csi]

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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 ...
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Connecting multiple CSI cameras ideas

This company uses a CPLD solution for syncing 4 cameras on Raspberry Pi. What I plan is to use an NXP RT1050 I would like to use it to generate the clock signals for 4 cameras and use an I2C ...
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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-...
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2 votes
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Is it possible to connect CSI-2 camera to CSI-1 port? [closed]

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 ...
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1 vote
1 answer
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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 ...
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3 votes
3 answers
216 views

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 ...
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How to transmit a packet through WiFi interface with specific data rate?

I am doing a project called 'Device free wireless sensing through WiFi'. In the literatures, researchers using PC and WiFi routers to send and receive packet, the channel state information (CSI) can ...
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79 views

Designing of a stereo camera concerns

I'm planning to design a depth camera. I'm considering to use the following Camera with the following specs: https://www.waveshare.com/wiki/IMX219-83_Stereo_Camera ...
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1 answer
161 views

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 ...
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Flipped length and Z-matched lines. How to pcb patch?

I think the title says it all. I accidentally flipped the P and N lines downstream of a CSI/MIPI retimer (they are impedance and length matched). Is there any way at all to patch this on the pcb?
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3 votes
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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 ...
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1 vote
2 answers
1k views

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 ...
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2 votes
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573 views

How to run raspberry pi compatible mipi csi camera on 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. ...
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6 votes
4 answers
207 views

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 ...
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1 answer
356 views

HDMI to CSI Converter for raspberry pi [closed]

I am creating a HDMI to CSI converter, but i dont know if the wiring is correct and if i need to add any passive component. can you guys help me out? EasyEDA Project
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2 votes
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42 views

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 ...
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1 answer
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SHorting MIPI Mux lines

I am currenty using the TS5MP646 http://www.ti.com/product/TS5MP646 . I need to build a 4:1 mux. I was wondering if I need to use 3 muxes, or can i just short the MIPI traces together and control it ...
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4 votes
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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 ...
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0 votes
1 answer
157 views

Probing and Analyzing MIPI CSI 2 Interface

I'm looking at probing and analyzing the MIPI CSI 2 interface on D-Phy with a Keysight 16802A 68-channel logical analyzer plus the N4851A/B probe. The question is, usually a 16802A can have ...
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0 votes
2 answers
360 views

Is there a need for reference plane for differential traces

Is there a need for a reference plane for differential traces. I have seen cases wherein people use unshielded FFC cable like ones from Wurth Electronik for a board to board connection of differential ...
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1 vote
1 answer
920 views

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 ...
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-1 votes
1 answer
490 views

How do I pick the right CSI camera module?

I'm looking for a camera module that supports CSI for general photography, so I need reasonable resolution and overall quality. However I can't find any comparisons and there are dozens of modules to ...
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0 votes
1 answer
815 views

Lattice MachXO3L: MIPI CSI2 bridge

I would like to design a MIPI CSI2 bridge with a MachXO3L. I leverage the LVDS25 input/output of this FPGA family with the adequate resistors for HS traffic. (I think) I don't care about LP as the ...
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1 vote
1 answer
3k views

Which interface to choose SPI MIPI or Parallel?

I'm trying to connect the AR sensor module (AR0331) with the IMX6 processor and the problem is the camera uses a HiSPI & parallel line. Similarly, there is MI-PI (CSI) and Parallel line in the ...
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1 vote
1 answer
1k views

Duplicate MIPI CSI2 camera (one camera, two receivers)

I would like to feed two processors with the same MIPI CSI2 camera. I cannot afford to have one of the processors to play the role of proxy to the other. Though I searched hard, I'm not aware of any ...
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0 votes
1 answer
396 views

Connecting unused MIPI data lane in schematics and PCB layout

I am using a MIPI to parallel bridge in one of my designs. The bridge takes in inputs from a MIPI camera and sends the parallel data to a processor. I am using only 2 data lanes (of the 4 data lanes) ...
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2 votes
1 answer
8k views

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....
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