WebThe false path were set and loads were varied LEARNINGS-1) Various parts of Timing reports 2)understanding the Setup and hold checks 3)calculation of setup and hold … Web27 Aug 2014 · set_clock_gating_check -setup 0.2 -hold 0.1 set_multicycle_path 0 -to U5/A report_timing -derate -to gate_en_reg/D > tt1.rpt report_timing -derate -to gate_en_reg/D -delay min >> tt1.rpt set link_library "* slow.db" read_verilog test.vg link_design test read_sdf test.sdf set_min_library slow.db -min_version fast.db
静态时序分析Static Timing Analysis1——STA概述、标准工艺库、 …
Web10 Apr 2024 · 除了前面讲的 set_max_delay 和 set_min_delay 指定的时序例外之外，另有两类时序例外：伪路径和多周期路径，分别有set_false_path和set_multicycle_path命令来指定。 伪路径. 伪路径也称为虚假路径，指时序分析时不需要关心的路径。DC不能自动识别伪路径，故需要显示指定。 Web13 Apr 2024 · 目录 DDR-PLL 简述 实际操作 实际工程 顶层代码 PLL配置 添加时钟约束 添加 input delay 约束 添加 False Path Setup Time Hold Time Multicycle约束 解决办法 PLL配置 发现问题 建立时间中 保持时间中 添加 False Path 总结 往期系列博客 DDR-PLL 简述 在之前介绍了 DDR-Direct 的时序模型，也就是不带有 PLL 的普通时序模型 ... tb voorraad
Multicycle Path Constraints Parameters - MATLAB & Simulink
WebIn the post setup and hold time violations, we learnt about the setup time violations and hold time violations. In this post, we will learn the approaches to tackle setup time violations. … Webset_multicycle_path -hold 2 -from {Reg1 [*] Reg2 [*]} -to Reg3 [*] The default value of this hold option is 0, which means that the hold check is to be performed within the same … WebAn ordinary two-cycle path would be specified using -capture_shift 2. Incrementing the-capture_shift value adds a cycle to the path by shifting the capture edge oneperiod later. Default: 1 -hold Specifies that the exception is for hold timing analysis only. eccojam b32