Cover story
Figure 2: CXP signal fl ow block diagram
signal is transmitted by an onboard EQC125X40 CoaXPress transceiver, over a 50m coaxial cable to another EQC125X40 transceiver that reconstructs the transmitted signal from the attenuated high-speed received signal. This board is connected to a PolarFire video kit, MPF300-VIDEO-KIT-NS, over an FPGA Mezzanine Card (FMC) [BTC1] connector; where a PolarFire device with 300,000 Logic Elements (LE) carries out the 8b/10b decoding followed by any desired image processing or intelligent algorithmic processing. Amongst a host of other interfaces, the board also supports an HDMI output to display the received signal on a screen. So, designers have an end-to-end demonstration of an embedded vision system. The total power drawn by the above design is < 1W – the
lowest power available on the market. Additionally, with the PolarFire FPGA offered in form factors as small as 11 x 11 mm and the CoaXPress 2.0 transmitter/receiver/repeater offered in a tiny 4 x 4 mm package, the design is dramatically optimised for both power and size! This solution is well suited for creating next-generation embedded vision platforms that integrate AI and ML.
PolarFire FPGAs PolarFire FPGAs deliver the industry’s lowest power in mid- range densities and provide defence-grade security and exceptional reliability. The product family spans from 100K to 500K LEs, features 12.7Gbps transceivers, a robust DSP
and high-speed memory resources. PolarFire FPGAs are great options for any design that requires high-bandwidth video signals and power over coaxial cables. PolarFire FPGAs are fl exible solutions that provide a suite of image processing IP to support popular imaging and video protocols including MIPI CSI-2 TX, MIPI CSI-2 RX, HDMI 1.4 TX, HDMI 2.0, DSI, and HD/3G/6G/12G SDI.
CoaXPress 2.0 technology CoaXPress technology is an open and royalty-free asymmetric, high-speed, point-to-point open serial communication standard for high-performance machine vision, industrial inspection and traffic monitoring systems. It provides a state-of-the-art method for connecting high-performance, high-resolution cameras to high- speed capture cards – also known as frame grabbers – via standard, off-the-shelf 75Ω coaxial cables. Offering a signifi cant improvement in speed over CoaXPress v1.1, CoaXPress 2.0 extends the data transfer rate up to 12.5Gbps for cables lengths of up to 40m, and up to 40Mbps for bidirectional communications. It is in fact, the only 12.5Gbps standard that provides simultaneous video, camera control and triggering over a single coaxial cable, along with 13W of DC power at 24VDC, with real-time cable link quality check.
www.microchip.com
www.electronicsworld.co.uk November 2021 07
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46
