为了保证TTP/C集群内各个节点之间时钟基准的一致性,设计了一种基于Welch-lynch中值增量修正法的时钟同步算法,充分利用了Zynq芯片的可编程逻辑单元和程序处理单元,在自主设计的TTP/C总线控制器上对时钟同步算法进行实验。实验表明,所设计的时钟同步算法能够保证各个测试节点的时钟同步误差在±30μs范围内。 In order to ensure the consistency of the clock reference among the nodes in TTP / C cluster, a clock synchronization algorithm based on Welch-Lynch median incremental correction method is designed, which makes full use of Zynq chip’s programmable logic unit and program processing unit , In the independently designed TTP / C bus controller on the clock synchronization algorithm experiments. Experiments show that the designed clock synchronization algorithm can guarantee the clock synchronization error of each test node within ± 30μs.