Thank's for the quick answer. I need the Spice netlist not only for simulation, I need it also for LVS (Layout Versus Schmatic). I can create a Spice netlist from the IC Layout (even from the digital part). The usual way is to compare this with a netlist, created from the schmatic editor. I know, this sounds very complicated when you know the CAD flow for PCB design. I personaly moved one year ago from PCB to ASIC design and was shocked about this uncomfortable methode.
Never the less, if we find a solution to this problem with the device property, I can use gschem for my development. Gruesse in die neue Welt Peter On Friday 31 October 2003 22:54, Stuart Brorson wrote: > This is an interesting conumdrum. The SPICE netlister needs the DEVICE > attribute in order to know what type of SPICE card to spit out. I don't > know why the Verilog DEVICE property is the instance name since I didn't > write the Verilog netlister. OTOH, I don't know what property you would > use instead. Changing this would require a total re-evaluation of the gEDA > attribute architecture (which maybe it needs, but is a big, big effort). > > The bigger question is: Why are you using the same schematic for analog > and digital simulation? Most board designers (also in the professional > world) use separate schematics for this kind of thing. THat is, if you > have a mixed signal circuit, you create a separate analog schematic with no > digital stuff on it for SPICE simulation. You keep a main schematic for > netlisting and layout. > > Ooops, I just realized that you are doing a chip. Mentor Graphics is > currently hyping a design environment which allows you to do seamless > integration of SPICE, Verilog, and Verilog-AMS (or something like that). > Cadence and Synopsys must have products like that too, although I don't > follow them as much. Therefore, this type of thing is more cutting-edge > than gEDA. If you're spinning mixed signal chips, maybe you need to buy a > professional CAD package . . . . > > My thoughts/opinions only. > > mit freundlichen Gruessen aus Amerika, > > Stuart > > Quoting Familie Kaiser <[EMAIL PROTECTED]>: > > Hi, > > > > does anybody had the problem to create two different netlists from one > > schmatic and run into problems with the device property? > > > > > > Concrete problem: > > I am designing a mixed signal ASIC. Digital simulation is done with > > Verilog, > > analog simulation and LVS with Spice. > > > > The device property with Verilog is the package instance and with Spice > > the > > device property tells the netlister what spice primitve to use. > > > > > > Has anybody a solution to this problem? > > > > > > Peter > > > > > > > > -- > > > > ---------------------------------------- > > [EMAIL PROTECTED] > > oder > > [EMAIL PROTECTED] > > oder > > http://www.darc.de/c/12 > > --------------------------------------- -- ---------------------------------------- [EMAIL PROTECTED] oder [EMAIL PROTECTED] oder http://www.darc.de/c/12 ---------------------------------------
