Rabbit RabbitCore RCM4400W Product Manual - page 64

56

RabbitCore RCM4400W

6.2.3  Configuration Information

6.2.3.1  Network/Wi-Fi Configuration

Any device placed on an Ethernet-based Internet Protocol (IP) network must have its own 

IP address. IP addresses are 32-bit numbers that uniquely identify a device. Besides the IP 

address, we also need a netmask, which is a 32-bit number that tells the TCP/IP stack what 

part of the IP address identifies the local network the device lives on.

The sample programs configure the RCM4400W modules with a default 

TCPCONFIG

macro from the 

LIB\TCPIP\TCP_CONFIG.LIB

 library. This macro allows specific IP 

address, netmask, gateway, and Wi-Fi parameters to be set at compile time. Change the 

network settings to configure your RCM4400W module with your own Ethernet settings 

only if that is necessary to run the sample programs; you will likely need to change some 

of the Wi-Fi settings.

•

Network Parameters

These lines contain the IP address, netmask, nameserver, and gateway parameters.

#define _PRIMARY_STATIC_IP "10.10.6.100"

#define _PRIMARY_NETMASK   "255.255.255.0"

#define MY_NAMESERVER      "10.10.6.1"

#define MY_GATEWAY         "10.10.6.1"

There are similar macros defined for the various Wi-Fi settings as explained in Section 6.3.1.

The Wi-Fi configurations are contained within 

TCPCONFIG 1

 (no DHCP) and 

TCPCON-

FIG 5

 (with DHCP, used primarily with infrastructure mode). You will need to 

#define 

TCPCONFIG 1

 or 

#define TCPCONFIG 5

 at the beginning of your program.

NOTE: TCPCONFIG 0 is not supported for Wi-Fi applications.

There are some other “standard” configurations for 

TCPCONFIG

. Their values are docu-

mented in the 

LIB\TCPIP\TCP_CONFIG.LIB

 library. More information is available in 

the Dynamic C TCP/IP User’s Manual.