请教：ASTRO中抽取扫描链信息的问题

使用axgScanTrace抽取扫描链信息
;; axgScanTrace
#t
;; formDefault "Scan Trace"
#t
;; setFormField "Scan Trace" "Port Name" "C"
#t
;; setFormField "Scan Trace" "Of" "cell instance"
#t
;; setFormField "Scan Trace" "Instance Name" "PAD_CHIP/PAD_SI1"
#t
;; setFormField "Scan Trace" "Specify Chain End" "1"
;; setFormField "Scan Trace" "End Port Name" "I"
;; setFormField "Scan Trace" "Of 2" "cell instance"
;; setFormField "Scan Trace" "End Instance Name" "PAD_CHIP/PAD_SO1"
;; setFormField "Scan Trace" "Allow Buffers" "1"
;; setFormField "Scan Trace" "Buffer Master Name(s)" ".*INV.*,.*BUF.*"
;; formApply "Scan Trace"
...
[9 times]


====== Astro Scan Trace ======
start tracing scan chain backward ...
WARNING : Scan trace did not find the specified start port
WARNING : Scan Trace stopped at port SI, cell instance ac97_top/u120/we1_reg
INFO: creating new scan chain group <ScanGroup_ac97_top/u120/we1_reg_Q>
Traced scan chain has 481 edges
=== END Astro Scan Trace ===

Scan Trace was successful.

Astro报了两个WARNING，不知道为什么找不到指定的开始端口?axgScanChainOptim是可以执行的
请问可否忽略这两个WARNING

请大家帮忙看看，谢谢！

怎么没有人回答呢 ?自己顶一下

你可以用scandef去尝试一下

扫描链的起点应该定义在pad的末端

wo ye pengdao 我也碰到同样问题
而且在palce之后，optimazation时，无法完成，信息如下：
ERR：require eaxctly one input and output pin on each scan edge.

学习。

学习了。

谢谢！

astro年代重来没用过scan reorder成功过，总是有些问题，
不知道了，换icc 读scan def吧，