VCO V-F曲線量測問題

poseidonpid

.tran 0.1n 100n sweep in 0 1.8 0.1
這一行不會動作，當然會看到的都一樣啊~
8 d3 X4 [% k: t6 p- O# }* ~9 D% W改成
v3 in 0 0
.tran 0.1n 100n sweep v3 0 1.8 0.1
應該就可以了

poseidonpid

.PARAM
, w2 z# O2 K) ~  A.GLOBAL gnd
+        vdd
.SUBCKT vco_nm in out1 out2 vbaise
MM0 out2 out1 vdd vdd pch W=5u L=180n M=80
/ |" c) f9 j2 o2 K) l5 E/ _2 oMM1 out1 out2 vdd vdd pch W=5u L=180n M=80
MM5 in out2 in vdd pch W=5u L=180.00n M=150
! u8 g  w% [* {* y1 F( a/ d5 W" ~MM4 in out1 in vdd pch W=5u L=180.00n M=100
$ ~, L4 M6 U# m4 ]- qMM6 net32 vbaise gnd gnd nch W=5u L=180n M=60
MM2 out2 out1 net32 net32 nch W=5u L=180n M=60
! A; i6 p+ n5 r6 R' \$ M8 {$ ]MM3 out1 out2 net32 net32 nch W=5u L=180n M=60
LL0 out1 out2 0.8n $[LP]
& E0 B$ _$ V9 T) c1 V' f.ENDS
1 X3 ^1 o' n$ G: z  @
x1 in out1 out2 vbaise vco_nm
( M" m5 g7 T. e5 K3 P; W  Vv1 gnd 0 dc 0v
: e9 [5 k+ Q  ]  Sv2 vdd 0 dc 1.8v
v3 in 0 pwl 0n 0v 100n test
v4 vbaise 0 dc 1.8v

.param test=1.8
6 T$ i  I6 [$ W: o! y# @
  B8 ]$ G% C4 v+ M
6 A# O7 G) u9 L6 s* _  hc1 out1 gnd 0.5p
c2 out2 gnd 0.5p
.meas tran period trig V(out1) val=0.9 rise=50 targ V(out1) val=0.9

rise=100
.meas tran f param='50/period'

- N( b5 Q& k4 r0 U" o3 s0 P.tran 0.1n 100n sweep test 0 1.8 0.1
.option post
" ?* z& u, I8 Z4 g4 M! A, X.end
3 M4 g9 |' R9 D; U# }8 u7 {4 H$ W9 j
( s% v* U1 D6 Z6 \. l( s6 z# ^這樣就可以了
! E: B- v' g+ p9 i+ |, n, U我有跑過模擬了~
" h* W6 w5 ~. ~2 Y  K可以看到波形了~
只是你的meas 指令好像有問題就是了~