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Circuit: ** Sheet_1 ** Fatal Error: Unknown subcircuit called in: xu1 u1_3 u1_2 volprobe1 lm7809l-ta3-tee

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elasa group 4 years ago

Hi; In the following of [this question](https://easyeda.com/forum/topic/Why-can-not-add-GND-in-EasyEDA-Simulation-mode-This-circuit-does-not-have-GND-Please-select-GND-from-the-circuit-tool-to-add-to-the-circuit-2bd13be63f504ec68b2401717c9f2edc) i can not simulate this circuit: [https://easyeda\.com/editor\#mode=sim\,id=\|362b58197ad74b19b6333c38c7d8a098](https://easyeda.com/editor#mode=sim,id=%7C362b58197ad74b19b6333c38c7d8a098) I have used writing tools **NetFlag GND** as GND part like [this simulation](https://easyeda.com/andyfierman/555-timer-simulation) but i have [another problem and that is](https://easyeda.com/forum/topic/Circuit-Sheet-1-Fatal-Error-Unknown-subcircuit-called-in-xu1-u1-3-u1-2-volprobe1-lm7809l-ta3-tee-46f0759b08e44ea0b428bf84a900e536) : > Circuit: \*\* Sheet\_1 \*\* Fatal Error: Unknown subcircuit called in: xu1 > u1\_3 u1\_2 volprobe1 lm7809l\-ta3\-tee So it worked by [ using the 78XX in Regulator part like this](https://easyeda.com/editor#mode=sim,id=159679bb4bae460baca0f562db2247ec|03eda222e44e40ac91aae4c09fb44163|e89fc4c974714cd0b522615621da1138|6d2364456aca4744ace23724edbfc7b7) but don't working by 7809 regulator icon from that icon bar?!! Thanks for your Attention.

Firefox 68.0 Linux EasyEDA 6.2.46

Comments

andyfierman 4 years ago

You are using a regulator symbol that has no spice model associated with it. Please use the Search Libraries tool: ![image.png](//image.easyeda.com/pullimage/ijSns0MNT8L0uCVnLyTk454YmVGYO8eeZ4SAJ5st.png) Your circuit would not work anyway because the the ground net is not connected to the gnd pin on the regulator chip: ![image.png](//image.easyeda.com/pullimage/egnWOWFhZoVebXtq9BCcHA0ArpGhdZNVJorATccs.png)

Chrome 77.0.3865.90 Ubuntu EasyEDA 6.2.46

elasa group 4 years ago

I know that the ground don't connected i do it because the EasyEDA Automatically disconnect the source form GND after i run simulation and giving this error: > Circuit: \*\* Sheet\_1 \*\* Fatal Error: Unknown subcircuit called in: xu1 > u1\_3 u1\_2 volprobe1 lm7809l\-ta3\-tee so i disconnected those to check what else error it would get?!!!

Firefox 68.0 Linux EasyEDA 6.2.46

elasa group 4 years ago

Also i received this message: > Your circuit is too complex, we have not enough CPU resouce to support this simulation, please reduce your circuit as small as you can. Your circuit is too complex, we have not enough CPU resource to support this simulation, please reduce your circuit as small as you can. is the Lt spice simulation use my pc or could ? and if using the could so is it possible to run simulator from my pc and not from cloud? Also the message have some grammar mistake in **resouce** text as you can see**!!!**

Firefox 68.0 Linux EasyEDA 6.2.46

andyfierman 4 years ago

LTspice runs almost seamlessly on Linux using WINE so you can install WINE and then you can install and run LTspice on your linux box. Please not however that at the moment there is no connection between LTspice installed locally and EasyEDA using LTspice in the cloud. So if you want to use EasyEDA models you will have to either copy them from your EasyEDA LTspice netlists into your local LTspice installation (and create your own symbols in LTspice) or just download then copy and paste your EasyEDA simulation LTspice netlist into an LTspice .asc schematic sheet and run it in LTspice locally. Please also note that some of the EasyEDA models are held in .lib files so these models will not appear in your EasyEDA LTspice netlist. only the model or subckt name will appear with a .lib statement in the netlist to tell LTspice where to find the model. If you need a model that is in a .lib file please post back.

Chrome 77.0.3865.90 Ubuntu EasyEDA 6.2.46

你现在访问的是EasyEDA海外版，使用建立访问速度更快的国内版 https://lceda.cn(需要重新注册)
如果需要转移工程请在个人中心 - 工程 - 工程高级设置 - 下载工程，下载后在https://lceda.cn/editor 打开保存即可。
有问题联系QQ 3001956291 不再提醒

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