如何使用CAM350比对底片与IPC网表
作者:互联网
如何使用CAM350比对底片与IPC网表
1, 开启软件,菜单File-Import-AutoImport 选择目录,选择单位,然后点击Next
2, 设置各层底片的格式
这里需要配置走线层面的 Layer Type Top - Top Bottom - Bottom 内层走线 - Internal 内层平面(正片) - Pos Plane 内层平面(负片) - Neg Plane NC Drill数据
注意和Allegro的NC Parameters参数匹配,注意下面几个地方:
设置完成了就点击:Finish导入
如果需要在界面下面调整层面属性设置,菜单:Tables-Layers
如果NC DRILL设置正确,那底片里面看到的钻孔尺寸就是实际的尺寸。如下图:
黄色为NC DRILL层面
3, 底片都正确导入后,我们就可以开始提取网表了,菜单Utilities-Netlist Extract…
点击OK,执行完成即可。
4, 导入IPC-365A网表,菜单:File-Import-IPC-IPC-356A
提示窗口直接点击OK。
5, 比较网表 点击菜单:Analysis-Nets-Compare External Nets
出来结果:
通过这个导航工具来找到短路或开路地方:
注意,单节点的网路也会报出来这个可以忽略。
这里查到的7个Extra External Net (External Net就是外面的网路,如IPC-356过来的网路) 这7个网络和我们的Only one connection report的吻合: Single Pin Net Logfile Net name - LED5-2, is a single pin net Located at - 22.460700 60.657000 Net name - LED5-1, is a single pin net Located at - 22.960900 60.657000 Net name - LED5-0, is a single pin net Located at - 23.460700 60.657000 Net name - RXP5, is a single pin net Located at - 12.960900 77.056800 Net name - RXM5, is a single pin net Located at - 12.460800 77.056800 Net name - TXP5, is a single pin net Located at - 11.460800 77.056800 Net name - TXM5, is a single pin net Located at - 10.960900 77.056800
2, 设置各层底片的格式
这里需要配置走线层面的 Layer Type Top - Top Bottom - Bottom 内层走线 - Internal 内层平面(正片) - Pos Plane 内层平面(负片) - Neg Plane NC Drill数据
注意和Allegro的NC Parameters参数匹配,注意下面几个地方:
设置完成了就点击:Finish导入
如果需要在界面下面调整层面属性设置,菜单:Tables-Layers
如果NC DRILL设置正确,那底片里面看到的钻孔尺寸就是实际的尺寸。如下图:
黄色为NC DRILL层面
3, 底片都正确导入后,我们就可以开始提取网表了,菜单Utilities-Netlist Extract…
点击OK,执行完成即可。
4, 导入IPC-365A网表,菜单:File-Import-IPC-IPC-356A
提示窗口直接点击OK。
5, 比较网表 点击菜单:Analysis-Nets-Compare External Nets
出来结果:
通过这个导航工具来找到短路或开路地方:
注意,单节点的网路也会报出来这个可以忽略。
这里查到的7个Extra External Net (External Net就是外面的网路,如IPC-356过来的网路) 这7个网络和我们的Only one connection report的吻合: Single Pin Net Logfile Net name - LED5-2, is a single pin net Located at - 22.460700 60.657000 Net name - LED5-1, is a single pin net Located at - 22.960900 60.657000 Net name - LED5-0, is a single pin net Located at - 23.460700 60.657000 Net name - RXP5, is a single pin net Located at - 12.960900 77.056800 Net name - RXM5, is a single pin net Located at - 12.460800 77.056800 Net name - TXP5, is a single pin net Located at - 11.460800 77.056800 Net name - TXM5, is a single pin net Located at - 10.960900 77.056800
标签:IPC,CAM350,pin,Located,single,网表,Net,net,name 来源: https://www.cnblogs.com/Snowden/p/14467668.html