摘要
针对引信RS485总线半双工串行通讯装定时,引信控制器需要不断改变控制口线电平状态使引信接收数据或发送数据,易出现总线冲突和遗漏数据现象,提出了引信RS422总线全双工通讯装定方法。该方法采用微控制器控制高速RS422接口芯片同弹载设备进行全双工异步通讯,接收武器平台信息,返回引信状态信息,收发独立。通过滑窗式算法判断和接收数据包;通过总线分时复用完成多引信装定。测试验证表明:该方法装定速度快、抗干扰能力强、可靠性高。
The RS485-bus fuze programing method has disadvantages of bus collision and missing data,fuze MCU change the pin state to receiv or transmit data.A fuze programming method based on RS422-bus full duplex communication was put forward in the paper.The MCU control RS422 interface chip communication with the onboard equipment,receiving weapon platform information and returning fuze state information independence.To take sliding window,MCU judge and receive the data packet.By time division multiplexing the same bue,more fuzes complete programming.Studys showed that the method was of fast programming,high anti-interference ability,and high reliability.
出处
《电子设计工程》
2014年第3期66-68,72,共4页
Electronic Design Engineering
