Quick clock synchronization method for EtherCAT master station control system
A master station control and clock synchronization technology, applied in transmission systems, time division multiplexing systems, electrical components, etc., can solve the problems of packet loss between the EtherCAT master station and the reference clock, slow clock synchronization speed, etc., to avoid time loss , avoid packet loss, and ensure stable operation
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[0035] See attached figure 1 , Attached figure 1 It is a flowchart of the fast clock synchronization method of the EtherCAT master control system. The invention adopts the RTX real-time kernel based on Windows to realize the EtherCAT master station. In the RTX system, the clock operating frequency cannot be changed. The present invention adopts a method of relative clock synchronization to realize the synchronization of the EtherCAT master station and the reference clock. Although the RTX real-time kernel can reach the clock synchronization accuracy of 1us, CLOCK2 is selected, and the minimum resolution is 10us without affecting the system performance. The specific process is as follows:
[0036] Step S1: Set a fixed-period timing thread and a variable-period timing thread respectively, and the fixed-period timing thread transmits and processes information for configuring the communication channel and data interaction with the application layer. The variable-p...
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