Questions tagged [mipi]
16 questions
13
votes
4 answers
LVDS vs MIPI, what's the difference?
What are the practical differences between LVDS and MIPI?
A little background information:
I am attempting to build my own projector on the cheap and want to use a nexus 10 LCD panel (2560 X 1600 resolution) but I have been reading mixed…
Craig Lafferty
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3
votes
2 answers
Can you damage a MIPI screen with incorrect timings / config?
Per the title really, I've been battling with (very VERY similar) MIPI screens from a few suppliers and they've been throwing different timings and configs / initialisation sequences at me... well, to verify one of them I used config A on screen B,…
John U
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2
votes
0 answers
Designing circuit of clock recovery from data line
I am currently struggling with the following challenge.
In the system I am currently designing, the transmitting device is equipped with an image sensor with MIPI output (1 data line, 12 Mbit data rate). The camera is configured to send data…
piotr
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2
votes
0 answers
Pinout of the 24 pin connector of the P5V0A?
Where can I get the pinout for the P5V04A SUNNY camera 24 pin flex connector used in the raspberry camera module v1.3??
(the pinout of the tiny yellow part on the camera)
I need to know the function for all the 24 pins.
Not just the CSI interface…
Aldo Flores Aguayo
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1
vote
0 answers
Choosing a fpc ribbon for MIPI-DSI signals
I am working on a driver board for MIPI displays. I have seen many designs that use a 40pin fpc ribbon cable between the DSI bridge IC and the display board for modularity. Since I want to push all 4 DSI lanes to 1Gbit/s each, I am very concerned…
Kostas Sarioglou
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1
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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0
votes
0 answers
MIPI DSI touch screen compatibility with Orange Pi 5B
TD;DR
Is DSI and MIPI D-PHY TX 4 lane the same thing?
I came across a "Waveshare 7.9 touch display for Raspberry Pi" which has two options, HDMI and DSI.
As I can see from Orange Pi's website, apart from having HDMI port, it states it has MIPI…
44yu5h
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0
votes
0 answers
MIPI low power states
Can anyone tell me if my MIPI waveform is correct from LP point of view?
I think my driver is messing up my LP00 state (it is supposed to be 0V.)
My MIPI IP fails to retrieve the data on this.
I suspect LP mode only. Other than that, I have a free…
Atharva Upadhye
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0
votes
1 answer
Using MIPI 2 CSI's I2C bus to communicate with additional hardware
I am using I2C bus 0 to operate the pis-1690 (CSI camera with I2C on bus0) along with the mlx90640 (I2C camera on the same I2C bus).
The cameras are being operated by a Raspberry pi 4 with 8 GB RAM and a Raspbian OS.
Both seem to work well with the…
metsik
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0
votes
1 answer
CMOS image sensor does not produce a picture, only vertical green/pink lines
We use the AR0521 CMOS image sensor and the iMX8 MPU for video recording.
75% of our PCBs don't have an image at the output, only green and pink vertical lines (see picture), but other PCBs work correctly.
We did not find the difference between…
Anna Kuznetsova
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0
votes
0 answers
Check status of MIPI-DSI device (check display is functioning)
We have a MIPI display driven from a dedicated controller/converter which accepts I2C commands and can translate them to/from MIPI DCS commands.
On occasion at power-up the display itself does not always initialise correctly, so I'm looking into…
John U
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0
votes
0 answers
Skew for MIPI design
I have the idea that the design constrains we use at our company are a little to strict. No one can tell me where the values come from.
According to the MIPI standard the inter-Lane Skew for signals equal to or lower than 1.5[Gbps] should be less…
Dukel
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0
votes
2 answers
High-frequency signal crossing in different layers
I'm working on a project which should connect an FPGA to some MIPI-CSI2 signals.
There are ten cameras, each one using four differential pairs plus one pair for the differential clock.
I'm routing the signals onto different layers. Each layer has…
SemiElectron
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0
votes
1 answer
CSI Transmitter does not change to HS mode
I don't have deep knowledge about the CSI protocol, but I have brought up several cameras with that interface connected to my host. Now I am facing a problem with a camera module and I want to identify the cause. Basically, the host does not detect…
Wladimir Dlc R
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0
votes
1 answer
How to connect to camera interface on OVM7251-EAAR-AA0A?
There's a weird connector on the OVM7251-EAAR-AA0A board from Omnivision:
It seems to be 40 pin and 2 cm wide, and from the sensor documentation it's supposed to be a 1-lane mipi / lvds interface.
Does anyone know how to connect with this from any…
Erlend Eriksen
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