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RL-ARM User's Guide

RL-RTX RL-FlashFS RL-TCPnet TCP Socket Opening TCP Connection TCP Active Open TCP Passive Open Sending TCP Data Example for Sending Data Multiple TCP Connections UDP Socket Opening UDP Connection Sending UDP Data When DHCP Enabled When ARP Cache Empty Example for Sending Data IP Multicasting Multiple UDP Connections Configuring RL-TCPnet Static Configuration System Definitions Ethernet Network Interface PPP Network Interface SLIP Network Interface UDP Socket TCP Socket BSD Socket HTTP Server Telnet Server TFTP Server TFTP Client FTP Server FTP Client DNS Client SMTP Client SNMP Agent SNTP Client Error Function Runtime Configuration Library Files Using RL-TCPnet Stand Alone With RTX Kernel Event Driven Operation IP Address Assignment Ethernet Interface PPP Interface SLIP Interface Localhost Applications HTTP Server Script Language CGI Functions Ajax Support Using XML XML Example How it works SOAP Support SOAP Interface Large POST Messages Web Pages Default Page Error Pages Web on SD Card Web Update File System Interface Http Caching How it works Internal Web External Web Multi-user Authentication Using RAM File System FCARM File Converter PRINT Directive NOPRINT Directive PAGEWIDTH Directive PAGELENGTH Directive ROOT Directive Telnet Server Command Line Interface Multi-user Authentication Sending Reply Message Short Reply Long Reply Continuous Screen Update TFTP Server File System Interface TFTP Client File System Interface FTP Server File System Interface Multi-user Authentication Supported Commands FTP Client File System Interface SMTP Client SNMP Agent MIB Database MIB Interface MIB Entry MIB Table DNS Resolver Starting DNS Device Drivers Ethernet Driver Interrupt Mode Modem Driver Serial Driver Using Serial Link Cable Connection Modem Connection Windows Dial-up Add Direct Serial Link New Dial-up Connection Configure PPP Dial-up Configure SLIP Dial-up Debugging Enabling Debug Debug Level Redirecting Output Function Overview BSD Routines CGI Routines Ethernet Routines FTP Routines HTTP Routines IGMP Routines Miscellaneous Routines Modem Routines PPP Routines Serial Routines SLIP Routines SMTP Routines SNMP Routines System Functions TCP Routines Telnet Routines TFTP Routines UDP Routines RL-CAN RL-USB Example Programs Library Reference Appendix

RL-TCPnet

This chapter describes the RL-TCPnet component of the RL-ARM Library. RL-TCPnet is an implementation of the TCP/IP protocol stack. The stack aims at reducing the memory usage and the code size. This makes it suitable for devices with limited resources, such as embedded systems. The RL-TCPnet library is a ground-up implementation of software routines for the ARM7, ARM9, Cortex-M1 and Cortex-M3 architectures.

User applications are written using standard C constructs and compiled with the ARM Compiler.

This chapter contains the following sections:

TCP Socket
Describes the TCP Socket, the connection modes, and the sending and receiving of data.
UDP Socket
Describes the UDP Socket, the connection modes, and the sending and receiving of data.
Configuring RL-TCPnet
Describes the configuration options of RL-TCPnet.
Using RL-TCPnet
Describes the usage possibilities of RL-TCPnet.
Applications
Describes the example programs built with RL-TCPnet.
Device Drivers
Describes how to built drivers with RL-TCPnet for network devices.
Using Serial Link
Describes how to use a serial link, a serial cable, or a modem connection to establish a PPP or SLIP link with a Windows host.
Debugging
Describes the debug version of RL-TCPnet for testing the application.
Function Overview
Lists the RL-TCPnet routines.

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