PCB常见问题汇总(国外英文资料).docVIP

PCB常见问题汇总(国外英文资料) Q: why cant the PROTEL copy from the WORD file be displayed properly? Re: are you in SCH environment or in PCB environment? In PCB environment, there are some special characters that cannot be displayed because the words are reserved at that time Q: the net name is the same as port. Can PCB be connected in the same name? Answer: Yes, PROTEL can be a variety of ways to generate the network, when you are at the level of the figure in port-port, each line graph can be NET with the same name, they are not because of the network name is the same as the connection. But please do not use the power port, because it is global. Q: Please import the PADS file in PROTEL99SE. Why is the pad property changed? Re: thats mostly because of the differences between the two software and each version, which is usually done manually. Question: Yang Yang: why the software through the power logic schematic into Protel, in the Protel can not attribute modification, as long as a modification, or unrealistic, or is the full display properties? Thank you Complex: such as full display, you can do a global editing, showing only the desired part. Q: what about the principle of laying copper? Re: copper should be more than 2 times as safe as you can. This is a routine knowledge of LAYOUT Q: could you tell me if Potel DXP has any improvements in automatic layout? Can it be released automatically according to the layout of the schematic? Complex: PCB layout and schematic layout have no certain inherent connection, therefore, Potel DXP in automatic layout will not be based on the layout of the schematic automatically. The component classes that are built from the subgraph can help PCB layouts connect according to schematics. Q: where can I purchase the data for signal integrity analysis? Complex: Protel software comes with detailed signal integrity analysis manual. Q: why is the filing of copper papers so big? Whats the way? Re: the amount of copper data is large enough to be unders