The application developing ,cross compiling and porting in ARM-Linux platform are also introduced and a detailed example is given for presentation.

This paper introduces the cross compiling process and the installation of Qt/Embedded and Qtopia on the platform EP9315,and then describes how to develop the applications on Qt/Embedded.

Hardware, software and cross compiling of the embedded system are introduced, and the monitoring software based on Qtopia is also developed.

In the end,the process of building cross-compile environment based on the target device Motorola A780 is expounded.

At first,the software design of SOHO broad band router based on IPv6 builds the cross compile environment.

This paper introduced a design of embedded graphics user interface, which is used for construction machinery safety monitor, based on MiniGUI,described the method of how to port and cross compile it step by step and how to port it to the construction machinery safety monitor based on ARM processor and Embedded Linux operating system.

In the paper take the ARM7 embedded development board as the foundation,studies on the embedded uCLinux operating system designs the DHCP protocol function,and using the cross compilation environment,transplants the DHCP agreement realization code to ARM7 develops board can realize.

Second,gives an analysis about feature of software development based on 16/32 bits MCU,does a research about technology for software development based on 16/32 bits MCU just like cross compilation.

In order to develop embedded linux,an important thing that we can t forget is to build cross-compiling environment.