jpo@IEDV2.acd.com ( Jim Osburn ) (05/23/91)
I am posting this for a friend. Please do not repsond to me but to my friend instead. His address is VOLTMER@ROSEVC.Rose-Hulman.edu. Thanks, Jim =-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-==-=-=-=-=-=-=-=-=-=-=-= We are just about to finish up a first try at SPICE on the 48SX. It includes linear versions of DC, AC, and Transient modes. It includes passive and active components of SPICE. It includes Plot and Print modes of output. But, is this a useful product? What other features are of interest? What other features (not necessarily available on SPICE) should be included? Please let me here from you at VOLTMER@ROSEVC.Rose-Hulman.edu Thanks.
akcs.pyee@hpcvbbs.UUCP (Paul Yee) (06/01/91)
Being a practising EE working in analog bipolar ASIC design and having used SPICE-based simulators like Accusim on the HP/Apollo and PSpice on the 386 PCs, I guess my only real concern with a SPICE program on the 48SX is: "How fast is it?" Simplicity and limited function at (relatively) high speed would be much more useful on the 48SX than all the bells and whistles at the snail-like pace I have come to expect from my 48SX (not that I don't like the 48, mind you). Convergence in the all-important dc bias point calculation at reasonable speed is a key, as is an efficient transient simulation routine. The very fact a pretty complete version of Spice for the 48 can be written is remarkable, since most Spice programs I've used are quite large (>200K on the PC). I would be interested in hearing about some of the implementation details of the Spice program for the 48SX.