Moxa W406-T-CE [19/74] Installing the tool chain linux

W315A/325A Linux User's Manual Getting Started

2-11

Test Program—Developing Hello.c

In this section, we use the standard “Hello” programming example to illustrate how to develop a program for

the W315A/325A. In general, program development involves the following seven steps.

Step 1:

Connect the W315A/325A to a Linux PC.

Step 2:

Install Tool Chain (GNU cross Compiler & glibc).

Step 3:

Set the cross compiler and glibc environment variables.

Step 4:

Code and compile the program.

Step 5:

Download the program to the W315A/325A via FTP or NFS.

Step 6:

Debug the program

> If bugs are found, return to Step 4.

> If no bugs are found, continue with Step 7.

Step 7:

Back up the user directory (distribute the program to

additional W315A/325A units if needed).

Installing the Tool Chain (Linux)

The Linux Operating System must be pre-installed in the PC before installing the W315A/325A GNU Tool Chain.

Fedora core or compatible versions are recommended. The Tool Chain requires approximately 200 MB of hard

disk space on your PC. The W315A/325A Tool Chain software is located on the W315A/325A CD. To install the

Tool Chain, insert the CD in your PC and then issue the following commands:

#mount /dev/cdrom /mnt/cdrom

#sh /mnt/cdrom/tool-chain/linux/install.sh

The Tool Chain will be installed automatically on your Linux PC within a few minutes. Before compiling the

program, be sure to set the following path first, since the Tool Chain files, including the compiler, link, library,

and include files are located in this directory.

PATH=/usr/local/arm-linux/bin:$PATH

Setting the path allows you to run the compiler from any directory.

Checking the Flash Memory Space

If the flash memory is full, you will not be able to save data to the Flash ROM. Use the following command to

calculate the amount of “Available” flash memory:

/>df –h