Відео

Você é fera, Stefan!

I get lots of "Warning: singular matrix: check nodes n.x1.n1#flow(out) and z" and the simulation ends with Error: Transient op failed, timestep too small. I use xschem 3.4.5. Is the version difference causing the error or is it something else?

Thanks for this excellent video, Stefan. Could please le me know what key combination you use to change the schematic nets to match the waveform colors? For example at time=3:10.

I don't know you saved my life

Why is ALT+G not loading the graphs, instead the wire next to the symbol becomes red, the graph stays empty. I installed gaw, but still unable to load the graph. I am following your ready made examples on bipolar transistor. The simulation runs fine but while trying to get the graphs, I am unable to load them. I am on Linux Mint 21.3 Cinnamon. PS: I managed to get the graphs but I am unsure of the steps. Most probably ALT+G is not working as expected, I selected the load arrow and clicked the left mouse button as written on the schematic. But I am unsure how the graphs are getting loaded because clicking the left mouse button is not immediately responding. I think the controls have changed. Could you please make a newer video. Are the manuals for xschem updated ? If they are I will refer them. Wonderful tool, at least now, I have an option to make some videos with xschem at least, due to it's open source nature.

Nice. I am keen on looking into this.

Armstrong Heights

Hello Mr. Stefan, I'm not sure if this is the correct platform to ask, but, how would the nf affects the simulation? For example, If I have a width of 20u (NMOS) and a nf of 4, does it mean that I have a total width of 20u (with each finger consisting of 5u) or a total width of 80u (with each finger consists of 20u). Thanks!

cant find the load option in new xscheme simulation tab

Ma un video in discesa?

Thank you Stefan, is very useful and concise video. I was wondering if is possible to change the grid for symbol editor, to be able to draw the art style of the symbol with more detail.

Hi Stefan, thank you a lot for your videos. I plan to characterize the technology to use gmID systematic design approach and create lookup tables. I'd like to be able to run from Python xschem and make simulations for different voltages and transistor sizes. I read in the xschem documentation that the program can be run remotely via TCL, however I'm not well versed in that. Do you have by any chance a tutorial or step by step guide to do so? Or do you recommend me to run directly ngspice from Python? I saw there is a tool called pyspice to do that. I'd appreciate a lot your help. Thank you

Can we write a script for sxcheme layout? For example, we use sxcheme to layout a design in transistor level. When done, I would like to put it in the array nxm. It can be troublesome to do manually and I prefer to write a script to arrange the array I want. Is it available or possible? Thanks in advance.

TENDRIA QUE SER MAS DIDACTICOS SINO SUS VIDEOS NO TIENE SENTIDO DEBERIA DECIR QUE COMPONENTES SON SUPONGO QUE ES USTED UN PROFESIONAL ESTOY EMTRAMPADO EN ESA MALLA

como se llama los componentes de esa red donde dice SRARTt STARTN

gracias por el videos como se llama esa res que incluyo al ultimo donde dice Start si pudiera decirnos los componentes que usa porque sino no se entiende bien yo deseo hacer lo mismo y no encuentro los componentes gracias

What is your distro

The only problem I have with Xlib is that it uses the antiquated Xlib primitives instead of a gui toolkit like GTK or TK or Qt. Recent graphics drivers are bad at implementing full Xlib and this is causing visual artefacts. I do not want to sound ungrateful, but I beg you to consider re-writing this in a modern toolkit in your most free time.

Thank you stefan for this video, i have a question is there a way to use verilog-a modeling in xschem or just schematics ?

Hello. Could you do a video on how to install asky130 and gf180 on the same pc and switch between them? There are events and projects that use on of the two and it could make it easier for students to access any of the pdks.

I am getting error while simulating. It is showing can't find model

Is there a layout design for this design?

i have a question, what does the sky 130 hh, ll ,lh and hl corners mean? do they change the VTH of the transistors?

Pressing the netlist button does not do anything. No spice netlist is created. Any clues?

what is the password and user name for downloading xschem?

Hi Stefan, Thank you for the videos. I installed xschem and then ngspice, per your other video. One problem I had is that for ngspice, when I click "Netlist" and then "Edit Netlist", the netlist is created in the simulations directory, but does not come up in a shell, as you show in the video. Can you give some pointers what I did wrong and how I can remedy this? Thanks a lot, Sam

Complimenti!

When you say skywater 130pdk is integrated, do you mean the model files are natively available?

Thank you Stefan

Thanks a lot Stefan! Plots in the schematic are really a great feature that I have used before in ADS and QUCS, and now available in Xschem. Can we plot equations and frequency domain plots?

Che rapporti hai usato?

Bellissimo video, era proprio quello che cercavo, perché sapevo che si poteva partire anche da Campione ma non avevo chiari riferimenti. Io vorrei andare a piedi da Campione fino a Pieve di Tremosine facendo appunto da prima la vecchia gardesana e poi ritrovarmi sulla strada della Forra per godermi ed immortalare i paesaggi spettacolari che ci sono. Da Campione alla 'Gola della Forra' a piedi, quanto ci vorrà secondo te? Ti ringrazio.

Quanto ci hai messo?

cool video

Complimenti ...bella ...I have been there ...a lot of times ...Bella strada and bella lago di Idro

impressionante ! complimenti

ciao,bel video,che percentuale e' la salita?

complimenti, con una spiegazione apparentemente banale hai dato informazioni chiare e precise.