摘要
针对ARINC419收发系统设计时,单片机执行中断服务程序的时间门槛限制,通过分析ARINC419数据总线的数据通讯格式,提出了一种改变中断信号产生时机的方法;该方法利用复杂可编程逻辑器件的丰富资源,引入缓冲寄存器,将中断信号产生时间提前,为中断服务程序的执行获得充足时间;文中给出了应用该方法的具体步骤和中断服务程序,试验结果表明该方法非常有效。
According to threshold restriction of SCM carrying out the time of interrupt service program as designed ARINC419 transceiver system, a kind of method of generating interruption signal is put forward by analyzing the data communication form of ARINC419 data bus. Register is applied by utilizing abundance resource of CPLD, Sufficient time is obtained when performing interruption program by bringing forward interruption signal. Detailed step and program of applying this method is listed. Test result shows that this method is very effective.
出处
《计算机测量与控制》
CSCD
2007年第5期657-659,共3页
Computer Measurement &Control
