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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

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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.

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  • \$\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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