MIPI’s DSI (Display Serial Interface) and CSI-2 (Camera Serial Interface 2) have become industry-standard, low-cost interfaces to video displays and cameras across a wide variety of embedded systems and you can now connect Xilinx FPGAs to these low-cost devices and other MIPI-compatible ASSPs using these interfaces in high-bandwidth applications supporting 4K2K and beyond. Even better, the free Xilinx App Note shows you how to do this in great detail. This App Note published late last month is a follow-up to the IEEE Webinar and working demo discussed last March in a previous Xcell Daily blog.
MIPI DSI to DSI Display Interface Bridge IP Quick Facts. Supports all MIPI DSI compatible video formats (RGB, YCbCr and User Defined).
(See “.”)Both the DSI and CSI-2 MIPI interface standards use the MIPI D-PHY and FPGAs do not yet have I/O that natively supports D-PHY. You can implement the D-PHY hardware specification with discrete components outside the FPGA however and shows you how to adapt and FPGA’s LVDS transmitters and receivers using two different approaches: compliant and compatible. For proprietary designs and cost-optimized systems, full compatibility and/or the highest performance might not be required as long as the D-PHY specifications are met and the link is robust under all conditions.
A low-cost resistor network for transmission and reception is sufficient to fulfill the design requirements in such cases. This is the compatible solution. These solutions will work with, and.The resistor network for transforming an LVDS transmitter into a compatible D-PHY transmitter looks like this:The resistor network for transforming an LVDS receiver into a compatible D-PHY receiver looks like this:Designs requiring full MIPI compliance and/or the highest possible performance can use active, external PHY components. This setup is the compliant solution and provides details for MIPI-to-FPGA and FPGA-to-MIPI designs.For both the compatible and compliant solutions, logic that functions as the MIPI D-PHY’s lane-control logic can be implemented inside the FPGA.
Has a block diagram showing what that might look like:also provides some pcb layout guidelines and recommendations to ensure that your D-PHY implementation doesn’t suffer from pcb-induced problems.Finally, you might ask “Does it work?” (That's the polite way of asking 'Is this a dry lab?' ) Here’s a video from last March to confirm that, yes indeed, it works.
Introductionjson-object-mapper is a typescript library designed to serialize andde-serialize DTO objects from and to JSON objects. Using the library, you wouldbe able to load the JSON data from Http/ File/ Stream strightinto an object graph of your DTO classes as well as serialize a DTO object graphso that it can be sent to an output stream.The idea behind this is that you do not need to add serialization andde-serialization methods to each of your DTO classes - thus keeping them cleanand simple.
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