VxWorks實時操作系統(tǒng)中串口通信的實現(xiàn)

VxWorks RTOS具有良好的裁剪能力，用戶可通過交叉開發(fā)環(huán)境根據(jù)需求裁剪組件，選擇各種內(nèi)核組件進(jìn)行系統(tǒng)內(nèi)核配置，編譯系統(tǒng)內(nèi)核時進(jìn)行獨立的加載和卸載．VxWorks RTOS提供了RAW MODE和LINE MODE兩種串口工作模式，通過I／O 控制函數(shù)Ioctl()對串口參數(shù)進(jìn)行選擇，通過Select宏實現(xiàn)對串口數(shù)據(jù)讀寫與監(jiān)測． 通過配置頭文件中相應(yīng)的配置宏來實現(xiàn)該系統(tǒng)的串口通信．VxWorks RTOS 支持x86、Power PC、68K、CPU32、SPARC、i960等多種平臺． 并以x86平臺為例，介紹基于x86平臺的嵌入式VxWorks系統(tǒng)與PC機串口通信的實現(xiàn)方式以及串口通信的編程方法．

VxWorks RTOS has superior clipping ability．User can clip down groupware on the basis of requirements by using the Tornado cross-development environment．User configures kernel facilities of System by selecting some of the KerneI facilities，and all kernel facilities can be independently configured into the system．VxWolrks RTOS provides two serial port work modes of RAW-MODE and LINE_MODE．User can select serial port parameters by using the ioctl()routine，and can read，write and monitor serial ports through Select macros．The serial communication of system is realized threlugh configuring corresponding macros．VxWorks supports all kinds of operating platform，such as x86，Power PC，68K，CPU32，SPARC，j960 and so on．The realization ways and programming method of serial communication between embedded VxW orks system of X86 operating platform and PC was introduced．