提出了以工業級ARM9 芯片為核心的嵌入式控制系統設計實現方案。分析一般工業控
制器需求，給出了控制系統總體方案，詳細設計了A/D、D/A、CAN、USB 和網絡等硬件電路及模塊化軟件。通過編譯與移植U-Boot、嵌入式Linux 內核，能正確引導操作系統并加載根文件系統，為嵌入式控制系統的開發與應用奠定了可靠的軟硬件平臺。該系統為工業數據采集及控制等領域控制系統設計提供了一種可行的方案。
關鍵詞：ARM9；嵌入式控制；U-BOOT ；嵌入式LINUX
Abstract: A universal design for embedded control system based on industrial ARM9 chip is
proposed. The requirement of industrial controller is analyzed, and the whole project of control system is given, and the design of A/D,D/A,CAN,USB,INTERNET and software are narrated in detail. U-boot and embedded Linux are successfully compiled and ported, which can load Linux image and root file system correctly, and establishes a dependable hardware & software platform for the application and development of embedded Linux. This control system is fitted data collection and control in industrial field, and so on.
Keywords: arm9; embedded control; u-boot; embedded Linux