摘要
以ARM920T为内核的S3C2440A作为主控制器和以太网控制芯片DM9000AEP设计硬件平台;构建并移植适合嵌入式串口服务器系统的嵌入式Linux操作系统,利用Linux完善的TCP/IP协议设计ARM端的多线程网络服务器程序。设计实现RS-232C串口与以太网口数据的双向传输,使现有的智能仪器设备成功接入以太网。
The hardware platform was designed which takes ARM920T-cored $3C2440A as the master control- ler and employs DM9000AEP Ethernet controller chip; the Linux operating system being applicable to the em- bedded serial port server system was built and transplanted, and though making use of the perfected TCP/IP protocol, the multi-threaded web server program for ARM side was designed. The two-way data transmission realized between RS-232 serial port and Ethernet data can allow the existing intelligent Ethernet to access the Ethernet successfully.
出处
《化工自动化及仪表》
CAS
2013年第3期372-376,共5页
Control and Instruments in Chemical Industry
