DRC error on spiceparts of version 9.08

[Trung Khanh Lê]

Hello Mr. Steven Rubin,

I would like to thank you for developing Electric. In the last version 9.08, I found an issue when running DRC Hierarchically on the schematic editor with spice parts. For example, if I place DCVoltage on my schematic, the DRC result always says: "Icon cell spiceparts:DCVoltage{ic} has no schematic cell".

 

This error occurs on any part of spiceparts and spicepartsS3 either. I do not meet this issue when using the 9.07 version. Could you help me solve it?

Thank you very much.

Best regards.

[Trung Khanh Lê]

The inserted image was missed in my previous email.

Vào lúc 19:42:44 UTC+7 ngày Thứ Sáu, 31 tháng 10, 2025, Trung Khanh Lê đã viết:

[Steven Rubin]

I have to ask why you are doing a Hierarchal DRC on a schematic. Generally, you do Hierarchical DRC on layout to consider all the circuitry in the subcells. But schematic DRC is meant to find issues only in the current cell, so you should be doing a regular DRC when examining schematics.

The error message does make sense. You have asked DRC to examine all sub-circuits, so wherever it finds an icon in your schematic cell, it tries to switch to the schematic that this icon represents and continue analysis. In the case of Spice Parts, the icons exist without equivalent schematics because the Spice Parts are only intended to hold pieces of Spice code when simulating. Therefore, DRC complains that it cannot find the equivalent schematic cell.

I will update the manual to explain this, but in the meantime, either switch to non-hierarchical DRC for schematics or tolerate those error messages.

   -Steven Rubin

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[Trung Khanh Lê]

Hello Mr. Steven Rubin,

Thank you for your reply. I have been using the Electric in teaching for many years. Many of my students usually do not notice the missing nodes when making wires, like in the below image:

Therefore, I have to ask my students to do the Hierarchical DRC on a schematic. Doing this function on a schematic can help them fix their mistakes quickly.

So, I will tolerate this error, and I will just consider it a warning.

Thank you very much for your help.

Best regards.

Vào lúc 20:48:16 UTC+7 ngày Thứ Sáu, 31 tháng 10, 2025, Steven Rubin đã viết: