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RL-ARM User's Guide (MDK v4)

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

System Definitions

System Definitions allow configuring general device options. The options are set in the file Net_Config.c directly or using the Configuration Wizard.

System Definitions


  • Local Host Name specifies the name of the device within the network. The name length is limited to 15 characters. This option corresponds to #define LHOST_NAME.
    #define LHOST_NAME     "mcb1700"             // maximal 15 characters allowed
  • Memory Pool size specifies the amount of RAM in bytes allocated for the Memory Pool. Values between 1500 and 64000 are allowed. The default value is 8000. This option corresponds to #define MEM_SIZE. The Memory Pool size value is transformed into a 4-byte value that is assigned to MEM_SIZE. For example, the Memory Pool size value of 8192 is transformed into #define MEM_SIZE 2048.
    #define MEM_SIZE       2048                  // Memory Pool size value is 8192 bytes !!
  • Tick Timer interval specifies the System Tick Timer interval value in milliseconds. Values can be selected from a list. The default value is 100ms. This option corresponds to #define TICK_INTERVAL.
    #define TICK_INTERVAL  100                   // value in milliseconds

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