Abstract
The data transmission scheme between a transmission control protocol/internet protocol (TCP/IP) network port and a serial port based on an ARM embedded system is introduced in the paper. The data transmission between a personal computer (PC) and remote equipment through an Internet is realized. The structure of a hardware platform is simply introduced, the cutting and transplant of operating system, the communication program design of the network port and the serial port and the cross compiling between the two ports are introduced in detail. The AT91SAM9261 chip of ATMEL Corporation is employed as the embedded board of a kernel processor. The Redhat9 Linux operating system is employed as a software development platform, an ARM-Linux operating system is employed as a program operation platform and the kernel version is Linux-2.6.2. The C program is used and an ARM-Linux-GNU tool chain is used for the cross compiling. The experimental result proves that the real-time, parallel full duplex data transmission between the network port and the serial port is realized by the scheme provided in the paper.
Highlights
With the development of an Internet technology and intelligent equipment, the application of the intelligent equipment remotely controlled through the Internet receives more and more attention from people
The realization of real-time data transmission between an Internet port which adopts a transmission control protocol/Internet protocol (TCP/IP) and the serial port means that the remote control on the serial equipment is realized by the Internet
System architecture The system architecture of the design is as Fig. 1: the application program of the personal computer performs data change with ARM9 embedded equipment in an IP access way, the ARM9 embedded equipment performs the data change with other pieces of equipment through the serial port
Summary
With the development of an Internet technology and intelligent equipment, the application of the intelligent equipment remotely controlled through the Internet receives more and more attention from people. The remote control can be widely applied to a plurality of fields of urban public safety, industry safety production, environment monitoring, intelligent transportation, intelligent home, public health, health monitoring and the like, so people can enjoy more safety and relaxing life.[1] because of the characteristics such as simplicity, stability and cheapness of a serial port, the serial port can be arranged in any intelligent equipment. The realization of real-time data transmission between an Internet port which adopts a transmission control protocol/Internet protocol (TCP/IP) and the serial port means that the remote control on the serial equipment is realized by the Internet. The Scheme design for communication between network port and serial port based on ARM has wide application prospect
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