中文摘要：

定时与同步系统是托卡马克装置实现等离子体放电流程实时控制的基础。基于SOPC技术研制的EAST分布式定时与同步系统可为各子系统提供精确时钟和同步触发信号，使装置各子系统按照预先设定好的流程运行，实现EAST等离子体放电实验时序的精确控制。EAST定时与同步系统的时序精度高于1μs，可以满足当前EAST实验的需要。

英文摘要：

Timing and synchronization system is the foundation to realize real-time plasma discharge con- trol for tokamak. Base on SOPC technology, the EAST timing and synchronization system is developed, which distributes precise clock and synchronized trigger signals to all the subsystems and realizes the ac- curacy timing control of the EAST plasma discharge experiments. The precision of the timing and syn- chronization system is higher than 1μs, which meets current requirement of the EAST experiments.