Moxa Technologies 331 User Manual download pdf (Page 60)

Moxa C Programmable RTU Controllers Tool Chains for Application Development

5-2

Linux Tool Chain

The Linux tool chain contains a suite of cross compilers and other tools, as well as the libraries and header files

that are necessary to compile your applications. These tool chain components must be installed on a

Linux-based host computer (PC). The following Linux distributions can be used to install the tool chain.

• Fedora Core 6 (on x86)

• Mandrake 8.1 (on x86)

• Red Hat 7.3, 8.0, 9.0 (on x86)

• SuSE 7.3 (on x86)

• YellowDog 2.1 (on PowerPC)

• Solaris 7 and 8 (on Sparc)

• Debian 3.1, 4.0 (on x86)

• Ubuntu 9.04. (see note)

NOTE

Ubuntu users will

need to prepare their system by entering the following commands:

apt-get install libncurse5-dev

mkdir /mnt/ramdisk

isregard the ”[ ==: unexpected operator“ warning when installing the tool chain.

Installing the Linux Tool Chain

The tool chain requires approximately 1 GB of hard disk space. To install the tool chain, follow the steps.

1. Insert the Documentation and Software CD into your PC, and then enter the following commands:

#mount /dev/cdrom /mnt/cdrom

#sh /mnt/cdrom/Software/toolchain/arm-linux_3.3.2_V1.X_BuildXXXXXXXX.sh

2. Wait for the installation process to complete. This should take a few minutes.

3. Add the directory /usr/local/arm-linux/bin to your path. You can do this in the current login by issuing

the following commands:

#export PATH=“/usr/local/arm-linux/bin:$PATH”

Alternatively, the same commands can be added to $HOME/.bash_profile to make it effective for all login

sessions.

Compiling Applications

To compile a simple C application, use the cross compiler instead of the regular compiler:

#arm-linux-gcc –o example –Wall –g –O2 example.c

#arm-linux-strip –s example

#arm-linux-gcc -ggdb –o example-debug example.c

Most of the cross compiler tools are the same as their native compiler counterparts, only with an additional

prefix that specifies the target system. The prefix is “i386-linux-” for x86 environments and “arm-linux-” for

MOXA RTU controllers. For example, “gcc” is the native C compiler, whereas “arm-linux-gcc” is the cross C

compiler for the ARM-based ioLogik W5348-C/ioPAC 8020-C series.

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Moxa Technologies 331 User Manual Page 60