Research On Embedded Industry Controller Based On ARM

Embedded system is the speciality computer system, which the bottom hardware, the RTOS and the application software are united. It has been used in the fields of control, consumer electronic product and etc. it has been one of the most important research aspect of the electron field.The general platform of the embedded industry controller based on ARM and μC/OS-Ⅱ is conceived and exploited facing to the industry control field in this paper. It is point to the developing requirements of the intellectualized and the network industry control instruments. The hardware flat of the embedded industry controller, which is centered on the ATMEL co. AT91M40800 is designed after analyze the ARM7 frame and the ARM7TDMI kernel. The following application modules are finished according to the actual application requirements of the embedded industry controller. They are including analog to digital conversion block, digital to analog conversion part, LCD display, the network communication module and etc. Furthermore the interface function of the various modules has been finished, the application function libraries are established. It offers convenience to the following codes application and the code transplant. The embedded RTOS is the support platform of the application software in the embedded system. After it is analyzed that the RTOS μC/OS-Ⅱ and the ARM kernel working principle, the deficiency of the interrupt and the clock are made up in the paper. The μC/OS-Ⅱ system is transplanted on the ARM microcontroller successfully; the corresponding task dispatcher example program verified the system. The system modules function tests are done. The embedded industry controller bears the network function after lwIP (namely, the TCP/IP protocol stack) of the open source code transplanted in it.The test results show the functions. Such as the multitask scheduling is come true based on the ARM μC/OS-Ⅱ kernel.The various function modules of the hardware platform run in good working states. The every layers of the lwIP protocol stack runs normally. A platform about the embedded industry controller is designed successfully in the paper.