4 order pll simulation using matlab

hungda50310

最近想使用matlab模擬PLL的behavior，
1 y( u" A) [: H+ C3 }/ c
但block接好後，卻無法模擬，出現下面error
3 \0 H4 _% [2 w4 H$ V$ }, w
" @& r' @% K" n2 W, \/ Z2 m& [-------------------------------------------------------
At time 1.654088834175351e-009, simulation hits (1000) consecutive zero
, G! b' W9 v  C# jcrossings. Consecutive zero crossings will slow down the simulation or cause
the simulation to hang. To continue the simulation, you may 1) Try using
Adaptive zero-crossing detection algorithm or 2) Disable the zero crossing of
# b, S! V: K8 B* e7 Dthe blocks shown in the following table.
* N! r# m. J+ f0 m9 e# w/ z----------------------------------------------------------
. u- g4 I; w* f# G7 D$ U
- B7 H) S2 N! y) s- g, {請問大家這問題該如何解?

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