Reflective memory card for PCIe interface

tjthkj

Reflective memory card for PCIe interface [Copy link]

The reflective memory card with PCIe interface is a hardware device for real-time network. It integrates reflective memory on the card and connects to the computer through the PCIe (PCI Express) bus.
The main function of the reflective memory card is to achieve high-speed, low-latency, and deterministic data sharing between multiple independent computers. Common reflective memory card sizes include 128MB and 256MB. When data is written to a specific address on one of the cards, the data is quickly transmitted to the same address of other reflective memory cards in the network through optical fiber, thereby achieving data sharing.
For example, the Abaco Systems PCIE-5565PIORC-100A00 PCI Express (PCIe) reflective memory card has the following features: 128 megabytes of memory, multi-mode transmission, and RoHS compliance; provides a high-speed, easy-to-use fiber optic network (2.12 GbBaud serial) with a x4-channel PCI Express 1.0a to PCI bridge; optional redundant operation mode, up to 256 nodes.
The networking methods of reflective memory cards are mainly ring and star. Ring networking means that each card is connected in sequence through optical fiber to form a ring structure, and data is transmitted in sequence in the ring network; star networking uses a reflective memory hub device to forward data, similar to the role of a switch, so as to achieve data consistency in the same memory address space on all cards in the star network.
The reflective memory card with PCIe interface has the advantages of high-speed data transmission, software transparency, easy installation and operation, and is suitable for systems with high requirements for data real-time and communication performance, such as aerospace, industrial control, medical equipment and other fields. In these fields, it can greatly save software development costs, improve product time to market and data throughput on the network. At the same time, reflective memory cards also support multiple operating systems, such as Windows, Linux, VxWorks, etc.

When using a reflective memory card, you need to perform hardware installation (insert the card into the PCIe slot of the computer and connect it via optical fiber) and software installation (install the corresponding driver). In addition, you need to pay attention to setting the relevant switches on the reflective memory card to configure parameters such as redundancy mode, node ID, etc., and ensure the correctness of the optical fiber connection.