军用电站监测系统采集模块的SPI接口及其驱动程序的实现

摘要

军用电站由发动机和发电机2大部分组成,其监测系统需要采集较多的状态参量.针对S3C6410片内的A/D精度和模拟通道数量有限的问题,考虑采用SPI接口的AD7490模数转化器.通过认真分析各部分硬件,给出了详细的Windows CE 6.0下驱动程序的实现方法,为开发嵌入式便携采集设备提供了良好的解决方案.%Military power plants consisted in two parts,or the engine and the generators, which need more parameters to collect. At the same time,because of the accuracy and number about analog channel in A/D converter of the S3C6410,taking into account of AD7490 A/D converter with SPI interface. The various parts of the hardware were carefully analyzed. Then the implementation of its driver was provided in details under Windows CE 6. 0. The experiments showed that the data between the AD7490 and the S3C6410 can be transferred stably and reliably. A good solution has been provided for the development of embedded portable acquisition devices.