Implementation of IEEE1588 Protocol Based on STM32H750

In the industrial control field, multiple nodes in the network need to collect and process data cooperatively. However, due to the lack of clock synchronization capability of the network, the data lacks time series information, which will lead to the abnormal fusion processing of multiple data by the upper computer, In the system, IEEE1588 protocol (accurate clock synchronization protocol of network measurement and control system) is used to solve the above problems. Based on the development board with STM32H750 microcontroller as the core, a distributed clock synchronization system is built. The system has built a LwIP (Light Weight TCP/IP Stack) network protocol stack to realize the transmission of various messages during clock synchronization, The time jitter delay from the transmission layer of the network protocol stack to the framing of the data link layer is eliminated, and the accuracy of clock synchronization is improved. The experimental results show that the system can achieve nanosecond level clock synchronization, and can be used in industrial control sites that require high real-time performance.