Study of IP core based on precision time protocol

This paper describes a design idea of Precision Time Protocol IP core, which is different from traditional method of software implementation. Design gives prominence to adopt digital logic circuit to achieve getting of precision time stamp, synchronization algorithm and quartz oscillator frequency-compensated algorithm and state-transfer controlled algorithm, And make use of oscillator´s divided frequency adjusted to reduce influence of oscillator´s frequency-excursion and circumstance factor to precision and stability of synchronization. The result of the function test indicates that it has higher synchronization precision than software implementation.