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3#
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發(fā)表于 2011-5-2 18:35:14
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這是部分程序，前面的程序沒(méi)有任何問(wèn)題，當(dāng)執(zhí)行0 u! e& @) V/ c
case 1: 8 b' C" ]. H2 ^, c' N, G0 Z5 C
PWM0_0=1;& h3 c: t; ]( N8 F$ C* i7 {
TH0=-PWM_Value1[0]/256;2 x U/ {" n# x
TL0=-PWM_Value1[0]%256;0 A/ c) ?1 T! C( a' c- b
break;, \" M, w7 o; W- f" C5 W/ `+ W
時(shí)，break沒(méi)有起作用，反而直接到了case 12中的這一步
! p3 a( Y8 R7 n) hTL0=-(3300-PWM_Value1[5])%256;
. N" c: k$ r ^ order1=0;4 A/ F7 v0 q7 V) h7 l0 x
TR1=0;
8 f }" a( V2 w5 `: x3 _! L break;/ b) e3 }# b- i3 `' M5 B; U; R; O! R% |+ m
}
# N. z* H) E7 \. H$ x' N3 W! oorder1++;/ C7 X5 K; I+ ~8 A! Z7 _& M9 c
在case12中結(jié)束循環(huán)的
U: M4 a! w3 w4 A/*===================================================================================3 v" H" P- q* Q! I' U9 t. `
定時(shí)器T0的中斷服務(wù)程序
' B3 G2 a, C: T1 G% W3 n 一個(gè)循環(huán)20MS ≈ 6*3.33ms
* @) [" Y1 O# I# s" Z=====================================================================================*/& @& Z$ i& p* x9 r
void timer0(void) interrupt 1 using 1' |- Q' ]5 @4 V# b# |
{
$ S* L% P/ j+ |0 D- e+ b6 K switch(order1)# _1 k+ s8 \! d8 L! D; K
{
b/ C* y/ a# }) {case 1:
- L* N* G1 I4 b1 F7 i! v2 [- g PWM0_0=1;
( w! o5 @' f0 D TH0=-PWM_Value1[0]/256;
# `; n7 U% o1 h0 ~& y! \ TL0=-PWM_Value1[0]%256;2 Q9 H! P( }' Y: C: H. H2 X
break;: T, V, g8 k9 X x# w1 b( O
case 2: ( ^- v( H' k1 Y# o; u2 x0 E& q
PWM0_0=0; 5 a& r; r, V/ W. B- j2 i9 I# s+ E- ]
TH0=-(3300-PWM_Value1[0])/256;
' }1 x! ]4 x7 H! _* J& X, Z TL0=-(3300-PWM_Value1[0])%256;, p$ o. d, g. Z) x. L2 @
break;
! f) m, k) f+ vcase 3: , y/ ?* n1 @; u
PWM0_1=1;8 n5 X' u" o6 F
TH0=-PWM_Value1[1]/256;
# w! A) @+ z/ d+ D TL0=-PWM_Value1[1]%256;. Q# S$ R) `5 B! f
break;
$ V" [# I6 S$ c. {# F5 n& lcase 4: 4 v- _! K o( n' k
PWM0_1=0;5 j$ m- S7 y5 @, ?4 p9 A! v' r \; ^
TH0=-(3300-PWM_Value1[1])/256;2 \: c# X- B% F4 P) T7 i2 S$ u
TL0=-(3300-PWM_Value1[1])%256;
4 I- ]! J9 C; J r4 C9 d4 K break;
. I8 C" D z' wcase 5:
& d2 N! X- E. b* A/ d9 V PWM0_2=1;" O9 J# ?6 ^- e, M
TH0=-PWM_Value1[2]/256;
6 O1 N" `! m# O TL0=-PWM_Value1[2]%256;
: G+ K9 @1 @3 R6 I; g3 \7 h break;
+ i7 b. ~) d- P' b: P6 |case 6: ( l( K/ |6 x" I$ N+ d* i0 U
PWM0_2=0 ;8 B$ | s' C3 X D- _& Z
TH0=-(3300-PWM_Value1[2])/256;' N# G8 ]& R5 L: I) e) J
TL0=-(3300-PWM_Value1[2])%256;5 ?; Q: d, d( _" I4 _8 H9 S$ I& c+ h X7 u
break;
- E( W8 ^- h5 d* C! k; L$ Hcase 7: 1 I1 f* y+ R, s- E% [
PWM0_3=1;
7 h0 [9 j- D9 a0 R; f+ R& o4 o: l TH0=-PWM_Value1[3]/256;! ?) E ^; }' v' S4 t& G3 k
TL0=-PWM_Value1[3]%256;8 h8 M/ k/ q. J+ n8 x5 w- |- H
break;
; [6 o- U% A7 G" ycase 8:
. O5 c" i& a- K" }, E PWM0_3=0; & \" V1 Q+ A; q+ N2 `' G. C. {
TH0=-(3300-PWM_Value1[3])/256;5 X, g1 i; e$ Z* ~& l9 X- g6 e
TL0=-(3300-PWM_Value1[3])%256;
. w& b/ c9 W9 m9 l2 f' R# G break;, W+ q* j+ m2 M' s; X6 O
case 9: , G" w1 d" S( i
PWM0_4=1;* Q4 c. O/ o; P9 q9 w/ y
TH0=-PWM_Value1[4]/256;
, ^5 t# ~# n- q TL0=-PWM_Value1[4]%256;* r) F: H: Y/ D
break;
8 s- }6 r4 H; s, L& {# G( e# M. _case 10:
! \6 k" _4 T. `- B. p/ z9 e PWM0_4=0;
6 Z, D% @: E* ~8 U% F+ i TH0=-(3300-PWM_Value1[4])/256;
+ m: u1 c2 _: u) b" S8 p6 V TL0=-(3300-PWM_Value1[4])%256;
2 [# e) {$ S1 C1 w5 S break;0 O1 K; B# `- c8 U7 y2 z
case 11:
5 C8 G+ H7 S! ]3 K J9 R( ?% A PWM0_5=1;
9 |) s$ J1 |) { TH0=-PWM_Value1[5]/256;. F3 J7 p( }5 \$ U
TL0=-PWM_Value1[5]%256;; f( J. [ _0 [* j0 r
break;
! A7 \" |: r* v" U6 v6 J' R5 kcase 12: # H) @& q# q, F; o7 G0 k- {
PWM0_5=0 ;4 A R: e5 y9 w
TH0=-(3300-PWM_Value1[5])/256;
2 h( d3 ~6 H- v7 C3 t% ^2 |$ v, u TL0=-(3300-PWM_Value1[5])%256;, V; P; v3 F) K# G3 A) P
order1=0;; a# P$ ]5 h7 Z; i
TR1=0;
/ j- K Q9 c" U' _1 ] break;
! o' \: `4 K) q7 y6 n/ u) W }
; P6 |; }! ?; xorder1++;
; X+ V* _3 N' m7 D} |
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發(fā)表于 2011-5-2 18:13:29
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發(fā)表于 2011-5-2 20:24:57