Aiming at the problem of insufficient timing synchronization capability and low accuracy of Ethernet in the military

industrial and other fields at present

a highly reliable clock synchronization interface circuit with a high-precision clock synchronization protocol is designed. The current mainstream with the highest precision is the IEEE1588 precision clock synchronization protocol; In-depth study and analysis of the best master clock algorithm and master-slave clock synchronization principle of the IEEE1588 protocol

proposed an ethernet clock synchronization method based on DP83640

provides a solution for stamping time stamps at the physical layer to achieve high-precision clock synchronization in ethernet

explain the master-slave clock software time synchronization process

test and verify the synchronization accuracy of master-slave clocks

which can achieve sub-microsecond clock synchronization accuracy.