【摘要】 为实现在 Windows NT操作系统下经纬仪主控计算机与中心计算机的同步通信 ,设计了基于 In-tel82 74串行通信控制器和 82 C37DMA控制器的 HDL C协议的两路同步通信卡 ,并利用 NT DDK开发了该卡的驱动程序 ,实现了数据的高速发送与接收 ,并成功地应用到新一代经纬仪中。更多还原

【Abstract】 For the purpose of communication between host controlling computers theodolite and center computers under Windows NT,this paper designs synchronous communication adapter with two channels based on Intel 8274 and HDLC protocol.The paper also develops the driver for the board using NT DDK,and completes the high speed sending and receiving of data.Now the adapter has been applied to the new generation theodolite.更多还原