Development Of Terminal Driver And Communication Programs On Embedded Linux

Since 1991 distribution for the first time,the application of Linux is more and more widely.Embedded Linux is an operation system which is cut off and modified from common Linux,and which can run on embedded computer system.Since it has the advantages from Linux and Embedded System, Embedded Linux has large market prospect.This paper studies some problems of wind turbine generators industrial controller based on the open source Linux system and embedded chip at91rm9200 target board.It implements serial driver,analysis of the terminal of the driver,and debugging emphasis and difficulty of transplantation driver.It also implements the Modbus protocol,which is widely used in industrial field for instructions and data transmission function.At the end of this paper,there is an implementation of TCP/IP data transmission program.