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一种嵌入式Linux串口驱动开发模式
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2009-06-16
王秀兰
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现在大多数的嵌入式设备中针对串口实时数据的处理都是在应用程序中来完成的，这
必然会降低数据的实时性能，数据的实时重复利用率也不高。通过改写嵌入式Linux 串口驱动程序，在内核中加入实时数据处理模块，改善了这些问题。实验结果表明，所作的改进有助于数据实时性能和重复利用率的提高以及应用程序开发难度的降低。
关键词：嵌入式Linux；串口；驱动程序；实时；EDAS-24IP
Abstract：Now most of the processing that are directed against serial port real-time data all are accomplished in application program, this certainly will reduce the real-time performance of data, and recycle rate is not high yet. By way of rewriting Linux serial port driver, joining read-time data processing module in the kernel, these problems have been improved. Experiment indicates finally that the improvement of having done contributes to the raise of data real-time performance and recycle rate and the reduction of the application development degree of difficulty.
Key words：embedded Linux; serial; driver; real time; EDAS-24IP
必然会降低数据的实时性能，数据的实时重复利用率也不高。通过改写嵌入式Linux 串口驱动程序，在内核中加入实时数据处理模块，改善了这些问题。实验结果表明，所作的改进有助于数据实时性能和重复利用率的提高以及应用程序开发难度的降低。
关键词：嵌入式Linux；串口；驱动程序；实时；EDAS-24IP
Abstract：Now most of the processing that are directed against serial port real-time data all are accomplished in application program, this certainly will reduce the real-time performance of data, and recycle rate is not high yet. By way of rewriting Linux serial port driver, joining read-time data processing module in the kernel, these problems have been improved. Experiment indicates finally that the improvement of having done contributes to the raise of data real-time performance and recycle rate and the reduction of the application development degree of difficulty.
Key words：embedded Linux; serial; driver; real time; EDAS-24IP
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