I am doing some homework for universiy and PSpice keeps saying that there is some missing values.I cant seem to find a solution in my books so I though that i might share my issue with you and understand why that happens.Here is the schematicenter image description here

enter image description here


I'm no expert in PSpice, but the following lines seem to spell it out:

R_R2         0 2  4,9k  
ERROR -- Missing value

I take it you are from a country where the comma (,) is used as a decimal mark. PSpice is likely expecting a period (.) as the decimal mark. Change the value of R_R2 to 4.9k, that should sort it out.

As I understand it, because SPICE uses a comma to separate parameters or other tokens in many contexts, a period/dot must be used as a decimal mark to avoid ambiguity.

  • \$\begingroup\$ Yes - uint128_t is correct. And - more than that, are you aware that there is no input signal (Vin=0)? \$\endgroup\$ – LvW Mar 22 '16 at 8:16
  • \$\begingroup\$ Yeah pretty dumb mistake made by me.Thank you very much.As for the input signal thats the value i recieved from my teacher and its working fine now even without it. \$\endgroup\$ – Yani Stoyanov Mar 23 '16 at 22:00
  • \$\begingroup\$ @LvW I suspect that OP is doing AC analysis or something similar, and therefore the simulator ignores that particular parameter. \$\endgroup\$ – uint128_t Mar 24 '16 at 0:53
  • \$\begingroup\$ AC analysis without any ac source? Not very probable. \$\endgroup\$ – LvW Mar 24 '16 at 9:31
  • \$\begingroup\$ @LvW I think Vin is the AC source, and that the AC amplitude of that source is hidden on the schematic. I don't know PSpice, but that's what LTSpice does. \$\endgroup\$ – uint128_t Mar 24 '16 at 13:59

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