Full document: LVDS_OpenSource
Analog design is difficult and time consuming. Less and less engineers pursue this field. High speed transceiver circuits are analog. Their designs require specialized knowledge and transistor-level tuning for specific silicon process. High speed transceivers are used in many areas. Examples of these are Ethernet networking, communication channel interfaces, bus interfaces, and others. They are also used for inter-chip connectivity such as from A/D converter to FPGA/processing chip or from Ethernet MAC to PHY devices. They help to reduce the number of signals required for connecting from 1 chiplet to another in multi-chip modules. If you're using a USB device, you're using a high-speed transceiver.
Low-voltage differential signaling (LVDS) circuits are a class of high-speed transceivers. To help advancing the industry in this area, today LeWiz Communications open-source the LVDS transceiver design for the open-source Skywater 130nm silicon process. This design has been tuned for up to 1 Giga bit per second speed. Its databases are available at: https://github.com/lewiz-support/LVDS_Transceiver/tree/main (Or go to github.com and search for "LeWiz" or "LVDS transceiver")
This design uses open-source tools, libraries, and low-cost silicon process. Its advantages include: Driving capability up to 10 meters, good eye opening/good immunity to noise, has low off-set and unbalanced differential output voltages.
Previously, LeWiz released to open source 3 Ethernet MAC cores supporting up to 100Gbps speed. This open-source transceiver is the first to complement those cores. The open-source technologies are released with Apache 2.0 license - free of licensing or royalty fee with source code/designs available to designers. We hope you will use and contribute to open-source further advancing this technology.
LeWiz Communications, Inc. develops extensive networking solutions for use in aerospace, datacenters and embedded products including advanced time-trigger Ethernet, time-sensitive networking technologies, eFPGA and radiation hardened electronics in GF 12LP and Skywater RH90 silicon processes. Further information are available at www.LeWiz.com or contact: info@lewiz.com
* Any trademark belongs to their respective organization
Released here:
https://github.com/lewiz-support/OmniXtend_RemoteAgent_RISC-V
OmniXtend is an open source architecture for clustering of processors (or servers) to remote storage and memory systems on the network. It allows processors such as RISC-V CPU(s) to execute programs stored remotely on network based storage or memory systems. This allows the processor to treat remotely stored information as if the information (program or data) is stored in its local memory. This extends the storage resource of the processor to what's available on the network -- any type of network whether wired or wireless, essentially limitless. Yet, it still can maintain data coherency across the memory hierarchy, keeping the information consistent across the network so if a piece of information is updated (locally or remotely), the processing system does not use stale data, maintaining correctness.
Did you know that such systems can also be fault tolerant? If a processing node is no longer available, other node(s) in the cluster can be made to pick up and continue the processing as if the failure has not occurred. LeWiz develops technology for space and other high reliability applications where fault tolerant is an important capability. It previously developed radiation tolerant RISC-V CPU, memory control and I/O subsystems enabling a system in space to continue to operate even if encountering failure due to radiation.
We've also released IP cores to open source on Github. This open source release furthers LeWiz contribution to the open source community advancing state of the art technologies.
(Contact us at info@lewiz.com)
West Coast Defense Contracting Summit at the San Diego Convention Center.
Semiconductor technology has followed Moore’s Law in the past 50 years, during which time tremendous amounts of gates have been made available in a single chip. In today’s connected world, SoCs can contain processor arrays with many integrated peripherals and complex analog functions. SoCs are useful in many applications, from small IoT devices such as sensors to vehicle electronics to large, complex computing systems such as servers and storage systems in computing and entertainment data centers. However, design technologies have not kept pace and developing a highly integrated SoC still requires significant time, resources, and expenses as well as painful debugging. Having a complete set of useful, proven open source functions could reduce time and cost expenditures exponentially.
LeWiz Communications produces proven, production deployed IP core libraries and FPGA technologies for extreme reliability applications in the financial, government, and entertainment sectors. Under the DARPA Posh Open Source Hardware (POSH) program, which is a part of DARPA’s Electronics Resurgence Initiative, LeWiz will spearhead the development of a set of communication technologies. The goal is to make these technologies available initially within a year’s time for network applications in complete form with code, simulation benches, test patterns, software, documentation and support.
Incomplete, poor quality code, or code without documentation and support frustrates the users in the open source community. LeWiz seeks to develop technologies that will address the technical requirements but will also strive to make them easy to use and easy for the users to migrate designs across different performance ranges. Its expected technologies will benefit chip, software and test developers from the design to the lab debugging and production cycle. Further, they will support custom, semi-custom or FPGA-based SoCs – including Intel and Xilinx FPGAs.
“We are very honored to be selected by DARPA - a prestigious advanced research agency, and happy to be able to contribute to the advancement of US national security and the technological world at large.”, said Chinh Le, LeWiz Communications’ CEO.
LeWiz provides accelerated, high performance, production deployed IP cores and FPGA products for network security/analysis, video streaming, and TCP/UDP/IP acceleration used in video, financial, and computing servers, storage and security systems. LeWiz’s products range from Gbps to 100Gbps as standard or customizable products with acceleration, unique function and performance advantages.