SCXI-1100 | NI | Supports multiple active connections

Description

SCXI-1001 | NI | User Packet Protocol

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The uIP protocol stack removes uncommon features from TCP/IP, simplifying communication processes, but preserves the protocols that must be used for network communication. The SCXI-1100 design focuses on IP/TCP/ICMP/UDP/ARP, which are network layer and transport layer protocols, ensuring the universality of its code and the stability of its structure.

Due to the fact that the uIP protocol stack is specifically designed for embedded systems, it also has the following superior features:

(1) The code is very limited, and its protocol stack code is less than 6K, making it easy to read and port.

(2) The amount of memory occupied is very small, with only a few hundred bytes of RAM.

(3) The hardware processing layer, protocol stack layer, and application layer share a global cache area, and there is no data copy. SCXI-1100 relies on this cache area for both sending and receiving, greatly saving space and time.

(4) Supports concurrent active and passive connections.

(5) The source code provides a set of instance programs: web server, web client, email sender (SMTP client), Telnet server, DNS host name resolution program, etc. It has strong universality and can be ported without modification.

(6) The processing of data adopts a round robin mechanism, without the support of manipulating the system.

Due to the low resource requirements and easy portability of uIP, most 8-bit microcontrollers in SCXI-1100 have used the uIP protocol stack, and many well-known embedded products and projects (such as satellites, Cisco routers, wireless sensor networks) are using the uIP protocol stack.

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