EDA軟體_Cadence_OrCAD Capture DRC 警告分析
阿新 • • 發佈：2019-01-17
大多數DRC warning甚至某些error可以忽略不計，不影響生成網表，但是要想成為一名成熟的電子工程師，你可以忽略某些錯誤，但是必須懂得為什麼會產生這些錯誤，如何消除掉這些錯誤，這樣才能控制這些錯誤的作用範圍，不致影響系統整體的設計。
WARNING(ORCAP-1829): Possible pin type conflict U8,DQ9/DQU1 Bidirectional Connected to Power HI3516ADMEB_VC, 08.DDR (14.35, 2.50) ERROR(ORCAP-1628): Possible pin type conflict U9,R/B2~/NC Output Connected to Power HI3516ADMEB_VC, 13.FLASH (12.05, 5.70) WARNING(ORCAP-1829): Possible pin type conflict R69,A Bidirectional Connected to Output HI3516ADMEB_VC, 13.FLASH (11.20, 3.90) 解決方法： These errors are produced based on the settings in the ERC matrix. If you've finished your design and you think that the connections are correct after you've checked all these errors, you can change the settings in the ERC matrix to remove them from the Design Rules Check. To change the ERC matrix: 1. Select the schematic page in the Project Manager. 2. Choose Design Rules Check from the Tools menu, then select the ERC matrix tab. 3. Make changes to the matrix, then click OK. When you click OK, Design Rules Check will run with the new settings. 簡單來說就是修改ERC matrix，來控制ERC檢查，這樣就提高了容錯能力，更容易通過， 但前提是對自己的設計要有把握，確保正確。
WARNING： [DRC0008]
Two nets in the same schematic have the same name, but there is no off-page connector-->
解決方法： you label a port or off-page connector with a name that is used by a power symbol or power pin on the schematic. It would be best to replace the port with a power symbol to transfer power through the design. If you have verified that there are no connectivity problems when running the netlist, you can ignore this warning.
WARNING(ORCAP-1829): Possible pin type conflict U8,DQ9/DQU1 Bidirectional Connected to Power HI3516ADMEB_VC, 08.DDR (14.35, 2.50) ERROR(ORCAP-1628): Possible pin type conflict U9,R/B2~/NC Output Connected to Power HI3516ADMEB_VC, 13.FLASH (12.05, 5.70) WARNING(ORCAP-1829): Possible pin type conflict R69,A Bidirectional Connected to Output HI3516ADMEB_VC, 13.FLASH (11.20, 3.90) 解決方法： These errors are produced based on the settings in the ERC matrix. If you've finished your design and you think that the connections are correct after you've checked all these errors, you can change the settings in the ERC matrix to remove them from the Design Rules Check. To change the ERC matrix: 1. Select the schematic page in the Project Manager. 2. Choose Design Rules Check from the Tools menu, then select the ERC matrix tab. 3. Make changes to the matrix, then click OK. When you click OK, Design Rules Check will run with the new settings. 簡單來說就是修改ERC matrix，來控制ERC檢查，這樣就提高了容錯能力，更容易通過， 但前提是對自己的設計要有把握，確保正確。
WARNING： [DRC0008]
Two nets in the same schematic have the same name, but there is no off-page connector-->
解決方法： you label a port or off-page connector with a name that is used by a power symbol or power pin on the schematic. It would be best to replace the port with a power symbol to transfer power through the design. If you have verified that there are no connectivity problems when running the netlist, you can ignore this warning.