今天，就PT常用的命令，做一个介绍，希望对大家以后的工作，起到帮助作用。
在PrimeTime中，使用report_timing -delay max命令生成此报告。switch -delay max表示定时报告用于设置(这是默认值)。
首先，我们整体看一下通过report_timing 运行之后，报告产生的整体样式。
pt_shell> report_timing -from start_point -to end_point -delay_type max
Startpoint: FF1 (rising edge-triggered flip-flop clocked by Clk)
Endpoint: FF2 (rising edge-triggered flip-flop clocked by Clk)
Path Group: Clk
Path Type: max
Point Incr Path
-----------------------------------------------------------
clock Clk (rise edge) 0.00 0.00
clock network delay (propagated) 1.10 * 1.10
FF1/CLK (fdef1a15) 0.00 1.10 r
FF1/Q (fdef1a15) 0.50 * 1.60 r
U2/Y (buf1a27) 0.11 * 1.71 r
U3/Y (buf1a27) 0.11 * 1.82 r
FF2/D (fdef1a15) 0.05 * 1.87 r
data arrival time 1.87
clock Clk (rise edge) 4.00 4.00
clock network delay (propagated) 1.00 * 5.00
FF2/CLK (fdef1a15) 5.00 r
library setup time -0.21 * 4.79
data required time 4.79
------------------------------------------------------------
data required time 4.79
data arrival time -1.87
------------------------------------------------------------
slack (MET) 2.92
一 Header部分
Startpoint: FF1 (rising edge-triggered flip-flop clocked by Clk)
Endpoint: FF2 (rising edge-triggered flip-flop clocked by Clk)
Path Group: Clk
Path Type: max
二 Data arrival部分
Point Incr Path
-----------------------------------------------------------
clock Clk (rise edge) 0.00 0.00
clock network delay (propagated) 1.10 * 1.10
FF1/CLK (fdef1a15) 0.00 1.10 r
FF1/Q (fdef1a15) 0.50 * 1.60 r
U2/Y (buf1a27) 0.11 * 1.71 r
U3/Y (buf1a27) 0.11 * 1.82 r
FF2/D (fdef1a15) 0.05 * 1.87 r
data arrival time 1.87
三 Data required
clock Clk (rise edge) 4.00 4.00
clock network delay (propagated) 1.00 * 5.00
FF2/CLK (fdef1a15) 5.00 r
library setup time -0.21 * 4.79
data required time 4.79
四 Slack
------------------------------------------------------------
data required time 4.79
data arrival time -1.87
------------------------------------------------------------
slack (MET) 2.92
********************************************************************************************************
pt_shell> report_timing -from start_point -to end_point -delay_type min
pt_shell> report_analysis_coverage
