Rabbit RCM3200 Bedienungsanleitung PDF herunterladen (Seite 50)

44 RabbitCore RCM3200

6.4.1 How to Set IP Addresses in the Sample Programs

With the introduction of Dynamic C 7.30 we have taken steps to make it easier to run

many of our sample programs. Instead of the MY_IP_ADDRESS and other macros, you will

see a TCPCONFIG macro. This macro tells Dynamic C to select your configuration from a

list of default configurations. You will have three choices when you encounter a sample

program with the

TCPCONFIG macro.

1. You can replace the

TCPCONFIG macro with individual MY_IP_ADDRESS,

MY_NETMASK, MY_GATEWAY, and MY_NAMESERVER macros in each program.

2. You can leave

TCPCONFIG at the usual default of 1, which will set the IP configurations

10.10.6.100, the netmask to 255.255.255.0, and the nameserver and gateway

10.10.6.1. If you would like to change the default values, for example, to use an IP

address of

10.1.1.2 for the RCM3200 board, and 10.1.1.1 for your PC, you can edit

the values in the section that directly follows the “General Configuration” comment in

the TCP_CONFIG.LIB library. You will find this library in the LIB/TCPIP directory.

3. You can create a CUSTOM_CONFIG.LIB library and use a TCPCONFIG value greater

than 100. Instructions for doing this are at the beginning of the

TCP_CONFIG.LIB file.

There are some other “standard” configurations for TCPCONFIG that let you select differ-

ent features such as DHCP. Their values are documented at the top of the

TCP_CONFIG.LIB library. More information is available in the Dynamic C TCP/IP

User’s Manual.

IP Addresses Before Dynamic C 7.30

Most of the sample programs such as shown in the example below use macros to define the

IP address assigned to the board and the IP address of the gateway, if there is a gateway.

#define MY_IP_ADDRESS "10.10.6.170"

#define MY_NETMASK "255.255.255.0"

#define MY_GATEWAY "10.10.6.1"

#define MY_NAMESERVER "10.10.6.1"

In order to do a direct connection, the following IP addresses can be used for the RCM3200:

#define MY_IP_ADDRESS "10.1.1.2"

#define MY_NETMASK "255.255.255.0"

// #define MY_GATEWAY "10.10.6.1"

// #define MY_NAMESERVER "10.10.6.1"

In this case, the gateway and nameserver are not used, and are commented out. The IP

address of the board is defined to be 10.1.1.2. The IP address of your PC can be defined

as 10.1.1.1.

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Rabbit RCM3200 Bedienungsanleitung Seite 50