ICC power设置
但是当save_cell,或分析功耗时ICC会报告：Information: Performing CEL netlist consistency check. (MWDC-118)
Error: Non-PG pin VSS (0x7d2963) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d2962) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d2961) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d2960) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d295f) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d295e) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d295d) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d295b) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VSS (0x7d2964) is driving PG net VSS (0x1cb4802). (MWDC-200)
Error: Non-PG pin VDD (0x7d296b) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d296a) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d2969) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d2968) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d2967) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d2966) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d2965) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d295c) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VDD (0x7d296c) is driving PG net VDD (0x7c2082). (MWDC-200)
Error: Non-PG pin VSS (0x7d295d) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d295e) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d295f) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d2960) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d2961) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d2962) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d2963) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VSS (0x7d2964) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VDD (0x7d2965) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d2966) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d2967) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d2968) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d2969) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d296a) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d296b) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VDD (0x7d296c) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: Non-PG pin VSS (0x7d295b) is driving PG net VSS (0x7d6105). (MWDC-200)
Error: Non-PG pin VDD (0x7d295c) is driving PG net VDD (0x7d6106). (MWDC-200)
Error: CEL consistency check failed. (MWDC-100)
不知道是什么问题?
?
ICC 没有正确识别power pin/net 相关信息
建议检查def里面关于special nets的信息，icc读def是经常容易出问题的，
还有derive_pg_connection可以用下，
又是icfbicfb，恩人呀！
我检查了一下我ICC的版图，发现IO pad、cell 的位置、连线等都没有问题，但是所有的port信号都在左下角的一个方框里重叠放着（图片中所示） ，找了一些命令可以吧这些port放到IO pad上，但是这些命令会移动IO pad或者是芯片内部cell的place。以前是用encounter的，ICC很不熟练呀。
只要 initialize_floorplan就可以了啊，
也就是port是 unplace的状态，如果是cell 聚在左下（中间也可能）起也是unplace状态，一个意思，
这个可能就是icc 对def 处理的一些问题，没办法， 读进来要仔细处理，
用initialize_floorplan的话岂不是会重新进行floorplan 那encounter做的不就没用了?
顺便问下 在PNS或PNA中怎样使用本身的pad而不用create virtual power pad
指定power source为本身的 pad就行了吧，
那个initialize_floorplan的事情：
可以keep_macro place,
实在不行只能写脚本 把port挪到 pad的位置了，
是set_port_location 吧，
很奇怪，为啥encounter做了 到icc里面做power分析啊， encounter自己有voltagestorm啊
这不是voltagestorm没license么
请详解下
谢谢~
求指导~
1. 先查有没有PORT VDD,VSS.
icc_shell> get_ports -all VDD
icc_shell> get_ports -all VSS
2. 如果没有：
create_port VDD -dir inout
create_port VSS-dir inout
connect_net [get_nets -all VDD] [get_ports -all VDD]
connect_net [get_nets -all VSS] [get_ports -all VSS]
请问一下小编，我的VDD,GND的port也跑到左下角，应该就是unplaced的状态了，然后我用您说的命令却说找不着，但是版图上有port的说，网表上面也有。
icc_shell> set_port_location -coordinate {792.508 -0.500} -layer_name M1-append{VDD}
Warning: Can't find port 'VDD' in design 'design_top'. (UID-95)
Error: Value for list 'port_name' must have 1 elements. (CMD-036)
0
icc_shell> get_ports -all VDD
{VDD}
Good job
试一试将pad fix住，看行不行
how to hand place IO pad cells in ICC design planning,I tried reading in the design.DEF with pre-defined locations in component section
but did not work
please help