Moxa W406-T-LX [21/74] Uploading and running the hello program

W315A/325A Linux User's Manual Getting Started

2-13

NOTE Since Moxa’s tool chain places a specially designed Makefile in the directory /tmp/example/hello

, be sure

to type the #make command from within that directory. This special Makefile uses the arm-linux-gcc

compiler to compile the hello.c source code for the RISC-based environment. If you type the #make

command from within any other directory, Linux will use the x86 compiler (for example, cc or gcc).

Refer to Chapter 5 to see a Makefile example.

Uploading and Running the “Hello” Program

Use the following commands to upload hello-release to the W315A/325A via FTP.

1. From the PC, type:

#ftp 192.168.3.127

2. Use the bin command to set the transfer mode to Binary mode, and then use the put command to initiate

the file transfer:

ftp> bin

ftp> put hello-release

3. From the W315A/325A, type:

# chmod +x hello-release

# ./hello-release

The word Hello will be printed on the screen.

root@Moxa:~# ./hello-release

Hello

Developing Your First Application

We use the tcps2 example to illustrate how to build an application. The procedure outlined in the following

subsections will show you how to build a TCP server program plus serial port communication that runs on the

W315A/325A.

Testing Environment

The tcps2 example demonstrates a simple application program that delivers transparent, bi-directional data

transmission between the W315A/325A’s serial and Ethernet ports. As illustrated in the following figure, the

purpose of this application is to transfer data between PC 1 and the W315A/325A through an RS-232

connection. At the remote site, data can be transferred between the W315A/325A’s Ethernet port and PC 2 over

an Ethernet connection.