[{"title":"( 4 个子文件 601KB ) 全面的 ISE时序约束教程","children":[{"title":"时序约束","children":[{"title":"004timing_closure.pdf <span style='color:#111;'> 276.80KB </span>","children":null,"spread":false},{"title":"001global_time_const_2003.pdf <span style='color:#111;'> 158.51KB </span>","children":null,"spread":false},{"title":"003path_constraints.pdf <span style='color:#111;'> 156.35KB </span>","children":null,"spread":false},{"title":"002groups_offset.pdf <span style='color:#111;'> 275.20KB </span>","children":null,"spread":false}],"spread":true}],"spread":true}]