This paper introduces a technical implementation of serial time sending with second punctu-ality edge.This technology is applied to a time synchronization device.When the device sends a serial time message,the falling edge of the starting bit of the frame header of the serial time message is the carried second on time edge.It has been verified that the falling edge of the starting bit of the frame header of the serial time message of the time synchronization device is output on the same edge as the punctual edge of the second signal output by the device,and the time difference is less than 30 ns.The falling edge of the starting bit of the frame header can be used as the frame time message.
关键词
时间同步/串口时间/时间报文/秒准时沿
Key words
Time Synchronization/Serial Port Time/Time Message/Second Punctuality
维普
万方数据