RL-ARM User's Guide
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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 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 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 Error Function 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

Add Direct Serial Link

Follow these steps to add the direct serial link device in Windows XP.

  1. Open the Phone and Modem Options applet found in the control panel. Select Add from the Modems tab on the Phone and Modem Options applet. The Add Hardware Wizard dialog appears. Enable the Don't detect my modem… option and click Next.

    Add Hardware Wizard dialog

  2. On the next dialog, select (Standard Modem Types) in the left column, Communications cable between two computers in the right column, and click Next.

    Manufacturer and Model dialog

  3. Select the appropriate communications port and click Next.

    Select Port

  4. On the next dialog, click Finish to complete the installation of the Direct Serial Link device. After the new device is installed, click OK to close the Phone and Modem Options applet.
  5. Next, limit the serial line baud rate. Open the Phone and Modem Options applet found in the control panel again. Select the Modems tab and double-click the modem you just installed. Alternatively, highlight it and click Properties.

    Select Modem

  6. Limit the highest port speed to 115200 baud because the default Null Modem driver, in RL-TCPnet, uses this baud rate by default. Select 115200 from the drop down menu.

    Port Speed

  7. After selecting the port speed, click OK twice to close the Phone and Modem Options applet.
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