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c51单片机MODBUS参考程序6 h- s- n+ U7 c8 u8 d
3 C0 m7 U8 y9 l& [2 M! X5 o& {5 ]" ? i
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8 F* _; L# U4 R2 i& d8 s1 T' [//在触摸屏上作个位开关，单片机系统用LED指示 S n7 S2 _7 I; [8 j: ~
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//在弹片机的硬件系统中用拨码开关来模拟数据输入，在EVIEW上显示
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//本程序实现位的读写和字的读写，为一对一通讯，EVIEW为主机9 r& v' t7 x4 c( w4 J8 p
1 V/ L- D- k- h# f2 w#include<reg52.h>0 h% q( E! F+ N6 c5 C" _" |
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#include<absacc.h>6 } a) R3 v$ V6 Z' J" d7 n
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#include<intrins.h>
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#include<ctype.h>* V2 N1 j9 B% Z a5 P
% O" p# g1 @3 W$ `/* These macro define simple data type */
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8 a( U7 h, t V" G2 k" j#define uchar unsigned char
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#define ulint unsigned long$ R+ B( ]" D3 {6 w! t* x
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#define uint unsigned int; V2 ^. L& I( r! }2 K+ p: g, V
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/* These macro for Mudbus function code */
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#define ReadCoilSta 0x01 // 0X read coil function/ Z X4 g% `& V3 l+ ^
2 ^: |( V. N3 m9 v0 \8 y c
#define ForceSingleCoil 0x05 // 0X force single coil function
" G9 F. k/ l0 d+ h) y+ g% T
+ k% {3 }0 [9 O1 j. Q" L, B% y; Q L#define ReadHoldReg 0x03 // 4X read input register0 Y1 v, A" T; ]
* s9 ~* H0 h! q! }5 A1 U4 R2 p. Q
#define PresetMulReg 0x10 // 4X write multi register
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/* These macro describe index of communiction message from start to end */
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#define CommIndexSlaveID 0 // macro for slave ID& Y/ @/ R& `7 ?
0 F7 P2 u! K3 z, Q7 e" w& r#define CommIndexFunction 1 // macro for function code% Z& U' {! V, _0 |2 `( [
" U4 N& b/ q. M, N#define CommIndexStartAdrHi 2 // macro for data hight adr
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#define CommIndexStartAdrLo 3 // macro for data low adr
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#define CommIndexNoPointHi 4 // macro for hight quantity datas4 a' \8 R! R' z- A$ K4 K) h
" k7 y* Z# i2 e1 n( N# A+ K# `#define CommIndexNoPointLo 5 // macro for low quantity datas4 ]1 ? n; G3 n9 y: F
, b. n0 x; x# Z: U
/* These macro describe recieve message lenght of different function code */* t; V6 X! A8 \3 g; `
/ v' U" _4 Z5 N f/* But not include data lenght ,the data is master write to slave */7 X2 ^& f/ Q: y% H. M
! W/ G; n' W* R: m/* because we don't know the data lenght prior, it depend on ComBuf[ComIndexNoPoint] value */
9 T6 }! c- m+ Z2 r% `5 @ [
3 B$ I4 C' U* G& C+ B$ b#define ReadCoilStaIndexEnd 7 // 0~7,0x01,0X+ g+ I& u$ B$ U+ |1 ~8 g0 E. X
7 v% ?8 y. U0 {3 p#define ForceSingleCoilIndexEnd 7 // 0~7,0x05,0X) k. }/ T9 ^$ ]0 B
: i) I0 Y3 n! ^9 G
#define ReadHoldRegIndexEnd 7 // 0~7,0x03,4X5 C1 E' ^; o9 O6 G/ m
) ~$ t. w7 Q( W7 Z$ @
#define PresetMulRegIndexEnd 8 // 0~8,0x10,4X
# @4 _ z# h; ~. b1 }) c
6 f: G6 g: Y# o- i/* these macro describe send or recieve allowed */& Y3 G. S4 r3 J9 [' L
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#define SEND 1 // send allowed0 o# x2 A1 i, _$ X0 ]
) z0 v5 U, S2 b0 H' a- i& R) e
#define RECIEVE 0 // recieve allowed0 D" v3 k( w3 n8 m
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#define SlaveID 0x01 // the slave's ID
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#define SendRecieveDelay 50 // Send turn to Recieve or Recieve turn to Send delay time vlaue y, y6 p' {# U/ r; o( a
+ u W5 {6 {4 `
#define MaxDataLen 30 // preset CommBuf array Max lenght! s4 ?6 X( S' `7 Q
, y0 \9 A- ]0 f u) e* x' I, @#define MaxRegLen 20 // preset SlaveOutputBuf Max lenght
" a6 k8 e4 R& E8 ?3 F+ I. F
/ D8 |2 k6 V+ a& o: x/* variable for modbus is following */2 l, |/ u K! |8 r1 v
( m' `. D3 ]* E1 O& o* Nbit data RecFinishF;9 _. m5 h$ t/ \# x3 D* B1 n9 F
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uchar data CommIndex;
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uchar data CommIndexEnd;
6 d: @' [" n" J2 H; e% @7 |& X: n) t- _6 _. i3 Q) o% _0 T- s2 ~
uchar idata CommBuf[MaxDataLen];
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uchar idata SlaveOutputBuf[MaxRegLen]; // Hight 8 bit of word is front,Low 8 bit is back; O) R2 l2 y& \* T: e' t/ S) o
7 V1 O% o/ A, m) O
uchar idata SlaveInputBuf[MaxRegLen];
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L% A; r( F: n. {4 p0 y) F/* exp data define *// C: I( \3 X6 d! X
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#define SlaveAdr XBYTE [0xD800]
; v d4 v; ~1 o3 [0 B' H$ C
! r; k' h8 a) L$ d' i3 osbit LED0=P1^0;9 k" n: F: M# a5 c
! T8 s3 |+ D0 c% uuchar idata ForceCoilBuf[10];0 b2 T4 w1 w' C
- D, {% M) s6 X# k) W" ouchar count=0;
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$ s$ ^" Y R+ H" T) @ l! e3 ]uchar forceval=0x00;% m8 T9 q0 x+ C' e i/ E
/ B' P c+ B0 ~5 X//bit forcesendF=0;
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/* Table Of CRC Values for high-order byte */* c9 Q' x+ Z+ D0 ]; j6 C
$ L! ^0 o6 F1 H2 \6 P$ ]* _% {uchar code auchCRCHi[] = {
7 P( S6 U1 ]% b$ p
4 Y# f( F: }2 _7 k; a1 j/ U0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,+ m7 r6 P) C$ x& t% y
& X/ g- Y+ m% N1 E" ]0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,/ T2 B6 S! `, c0 L3 J+ k2 D2 k
" ]# R9 \. M/ {
0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
& j# w* o D# K: j2 E; n. w
. A* [' E5 f0 b5 |( p1 ^0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41,; a; ?' e& B% @
& M8 t3 h5 ?) v3 k/ P) {2 [% W# F/ W
0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,
$ ]! e% P( H! g* k
# G" A9 D- e7 i2 h2 N# z* S. x0x00, 0xC1, 0x81,
( S7 U5 \: c& C' e7 o; t, G
# X& H& d) N+ n D% h0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0,) G5 r7 |8 l: O9 L, T
* z; H. p5 R: F6 D0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,4 \) e( }7 ?& D+ t- S6 V
/ ]- H5 P( x8 u9 u1 r' Y2 j/ f0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40,/ c$ r' |* u; D
4 u* |/ D, B0 c; v) f0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,
. `3 b7 P- a! ~5 [* }# S7 }' [/ k& }' K( r" `, q# u5 b
0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,
5 w5 ]7 k. Q) _" s0 R
, ~$ b+ a9 E3 G# k6 k) c0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01,
( d8 V4 P5 ` \4 D; ]7 E# R+ Y
) d& d- g. t- o% H9 B* A# k5 a0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
- Q5 X! K) L" T, H3 k8 A, p( ]' j( e& N- q5 s1 p+ a1 }
0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,; a* p' y4 v* c2 @( |
3 r8 w* L# h5 V3 U. e7 B; Z0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0,9 R/ f9 C) Q) s0 T
0 Q" C. l* j0 {+ Y/ O0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01,
A F3 X# m' h. _% b, f8 L$ ~1 r" D7 l z; e0 `/ O/ f
0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81, 0x40, 0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41,
3 J* p( H+ {; c% f
6 c1 c; `6 P$ r" h% b& ^5 p0x00, 0xC1, 0x81, 0x40, 0x01, 0xC0, 0x80, 0x41, 0x01, 0xC0, 0x80, 0x41, 0x00, 0xC1, 0x81,2 Z- r3 R7 ^" n0 U: B$ O
- @) g X4 P% S; c% l, @/ F7 u
0x400 S. J, f9 Z% N8 A3 S" U! ?
# Z9 M1 I- c6 H% m* V& R% a} ;
% e0 S6 _% s; H% B+ L7 B8 l1 Z- s! J
/* Table of CRC values for low-order byte */ @4 Y$ k$ L& y( ~) x7 b0 }" i' t
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uchar code auchCRCLo[] = {
7 y) s# u) h# j' S( i* {- J( C- i! c: C- m. M9 J! `: b1 }" b D
0x00, 0xC0, 0xC1, 0x01, 0xC3, 0x03, 0x02, 0xC2, 0xC6, 0x06, 0x07, 0xC7, 0x05, 0xC5, 0xC4,
1 M: E8 ^% D, n$ J3 \/ V0 ]$ t/ w0 {( d: a: C. x n0 N- J C W4 }
0x04, 0xCC, 0x0C, 0x0D, 0xCD, 0x0F, 0xCF, 0xCE, 0x0E, 0x0A, 0xCA, 0xCB, 0x0B, 0xC9, 0x09,# D6 ~. a3 C- V( J4 O% e
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0x08, 0xC8, 0xD8, 0x18, 0x19, 0xD9, 0x1B, 0xDB, 0xDA, 0x1A, 0x1E, 0xDE, 0xDF, 0x1F, 0xDD,
9 l# a l9 q# h1 c+ H3 O+ l$ Z) R- V$ N( M# s+ A. K4 G4 | K
0x1D, 0x1C, 0xDC, 0x14, 0xD4, 0xD5, 0x15, 0xD7, 0x17, 0x16, 0xD6, 0xD2, 0x12, 0x13, 0xD3,
/ z8 I7 b$ R8 d4 `4 T
8 _/ j S9 V" N! M1 {& I5 y0x11, 0xD1, 0xD0, 0x10, 0xF0, 0x30, 0x31, 0xF1, 0x33, 0xF3, 0xF2, 0x32, 0x36, 0xF6, 0xF7,4 m; X9 B. y, P+ D8 Y: C
0 H: r8 {. C ]# E' F! B
0x37, 0xF5, 0x35, 0x34, 0xF4, 0x3C, 0xFC, 0xFD, 0x3D, 0xFF, 0x3F, 0x3E, 0xFE, 0xFA, 0x3A,4 v) B9 I( L2 X9 M( H! r1 a' \
. M1 C3 f6 z# T$ Y" w5 _
0x3B, 0xFB, 0x39, 0xF9, 0xF8, 0x38, 0x28, 0xE8, 0xE9, 0x29, 0xEB, 0x2B, 0x2A, 0xEA, 0xEE,! G# a0 i* g0 r7 t! M6 ]% G" _
3 F. X& \8 d: l6 J/ F8 R& @0x2E, 0x2F, 0xEF, 0x2D, 0xED, 0xEC, 0x2C, 0xE4, 0x24, 0x25, 0xE5, 0x27, 0xE7, 0xE6, 0x26,$ \- O5 p1 d8 ?% ^* ?* Q
* x; S) E' O0 B2 @0 _0x22, 0xE2, 0xE3, 0x23, 0xE1, 0x21, 0x20, 0xE0, 0xA0, 0x60, 0x61, 0xA1, 0x63, 0xA3, 0xA2,
9 k) t4 U: @$ Y+ ~- x6 O
0 {( F: e& Y8 Y4 ~" m; F1 Y0x62, 0x66, 0xA6, 0xA7, 0x67, 0xA5, 0x65, 0x64, 0xA4, 0x6C, 0xAC, 0xAD, 0x6D, 0xAF, 0x6F,
# Z- h4 N# u; I- A" M: Y. P/ {: |' Z. j& ~9 W
0x6E, 0xAE, 0xAA, 0x6A, 0x6B, 0xAB, 0x69, 0xA9, 0xA8, 0x68, 0x78, 0xB8, 0xB9, 0x79, 0xBB,: @7 Y1 M N1 V* L
( Z- _$ C( W. q: D) Y- j$ t
0x7B, 0x7A, 0xBA, 0xBE, 0x7E, 0x7F, 0xBF, 0x7D, 0xBD, 0xBC, 0x7C, 0xB4, 0x74, 0x75, 0xB5,
; ~4 M! M5 S1 V. \) o& R' G9 n" W6 u$ a+ F6 |. N6 a! ~
0x77, 0xB7, 0xB6, 0x76, 0x72, 0xB2, 0xB3, 0x73, 0xB1, 0x71, 0x70, 0xB0, 0x50, 0x90, 0x91,, b8 {- P- M% V+ u5 z M
+ ]7 Z1 f& C( E" l n p* e
0x51, 0x93, 0x53, 0x52, 0x92, 0x96, 0x56, 0x57, 0x97, 0x55, 0x95, 0x94, 0x54, 0x9C, 0x5C,0 Z( p& \& |1 c
" V }, b6 L# e0x5D, 0x9D, 0x5F, 0x9F, 0x9E, 0x5E, 0x5A, 0x9A, 0x9B, 0x5B, 0x99, 0x59, 0x58, 0x98, 0x88,/ [' k$ F/ U9 g, b
' o' g! P$ F/ e% E$ D2 ~
0x48, 0x49, 0x89, 0x4B, 0x8B, 0x8A, 0x4A, 0x4E, 0x8E, 0x8F, 0x4F, 0x8D, 0x4D, 0x4C, 0x8C,
1 `- k. ^% {: L' t
: b4 h+ V/ ]5 c- `0x44, 0x84, 0x85, 0x45, 0x87, 0x47, 0x46, 0x86, 0x82, 0x42, 0x43, 0x83, 0x41, 0x81, 0x80,
h0 |( S! z; P% ^( }0 r, f! i' |0 g6 C6 r
0x40- ?0 V5 {4 c+ X+ w4 b
7 R: [# D# F8 Y7 j# C} ;
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uint crc16(uchar *puchMsg,uchar usDataLen) // puchMsg message to calculate CRC upon
3 `* e8 b6 M& U" y+ G6 C x7 c) \; Y+ C( ~7 d
{ // usDataLen quantity of bytes in message
# ~( v, X, `6 k" b
. i% E! s1 F; A4 n( g, l% w$ {( duchar uchCRCHi = 0xFF ; // high byte of CRC initialized
5 ^6 e/ V$ I6 q) E& e
5 E( j4 c |* a Xuchar uchCRCLo = 0xFF ; // low byte of CRC initialized
) \" N& U& y, p+ [/ @* B1 }' q
/ a# B+ Q, ~& S, t- z, R2 huint uIndex ; // will index into CRC lookup table
# L" i1 W; J3 T* ~8 U V2 y' S3 K) Y" Y# h( I9 N
while (usDataLen--) // Pass through message buffer+ m- P5 H' F6 ^& T- t# W* {8 q+ `
/ L w f; M: O e{
; ]7 L" U! n, y/ t$ z
) f5 ^; G2 w# t- JuIndex = uchCRCHi ^ *puchMsg++ ; // calculate the CRC' `4 f" [0 m4 Y6 g; {$ ~
7 T' S. w' x3 ~) E V5 I
uchCRCHi = uchCRCLo ^ auchCRCHi[uIndex] ;
8 s$ H3 O6 S, l$ C7 l* }, ~6 i$ C' N, ^3 A) Z
uchCRCLo = auchCRCLo[uIndex] ;
; x7 H6 h5 R3 [5 ?8 J
6 |0 w. A! p- q/ y}: g# v+ \3 ~, t7 n9 `/ v
+ l* l( E2 n2 r# R p: }
return (((uint)(uchCRCLo) << 8) | uchCRCHi) ;
" s& K5 Y6 a- S: {- l# o5 j8 n9 x, U- Z2 ?
}
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/*------------- init code is following ----------------*/
4 Z6 {( u& x, Q' }) q" [) \3 A. C8 a* R6 W* S* V
void initSFR(void)
# `; q- ?. |" z6 M5 O, ?/ D* D5 j% }& ?
{
4 w* G2 D a9 S- C! G4 z. N# N2 p1 w' `3 S
TH1=0xfa;
' N. [2 i; ?" x( f1 L! h, X) V% o; k. s$ V
TL1=0xfa; // botelv set 9600 bps/s
0 N/ j+ K: c a, e& G# R |
4 d6 h& h: O' Q8 L: C) A- m9 aTMOD=0x21; // T1 8bit timer for uart band rate, T0 16bit timer
6 v! L9 R. p+ r1 O. a( m1 x. Z) n# R8 B" l2 @6 o/ ]( k
PCON=PCON | 0x80; // band rate is 2 times7 l2 `% D' C( {' X6 `) g
. w/ y. p! u) k4 y% i: ]0 q
SCON=0x50; // uart mode is 01,start bit + 8 bit data +stop bit : peer to peer communication+ _% n- y, \2 ~6 V
1 V! f1 v) c" ?, ^+ GPS=1; // uart intrrupt is hightest, u! n8 s6 t( l9 Q
$ T0 Q0 B: U4 j A4 y0 l9 ?$ HTR1=1; // start T1. I# `3 a e! G5 {: ~& r# n. h
% X) V- z" t6 }4 U4 X- ~4 o2 UES=1; // serially interrupt allow
. `3 a$ y) ` i2 j# Y& \7 ?1 g+ B; D2 l2 G2 P
EA=1; // chief interrupt allow
9 U3 f+ y4 a+ j5 `' |8 s: R
$ Z& k$ j3 X' V}# l) @& ]& Q, b8 D) x6 k
$ h& g9 i1 `; c/ yvoid initvar(void)$ i+ J& ~7 X, ^5 ?2 s4 l
, M& f1 L. V, s. p, k
{! S* S! Q8 b# M
1 `: Y# T7 K$ j+ s/ O% Muchar i;7 i+ m; j4 n8 v( ~: y
" @+ ^1 n$ W N$ z' |9 `
for (i=0;i<=250;i++)
6 I. P8 T( v, T1 c D5 e
* @. W4 Q) l: i1 g' ]7 W W {_nop_();
, W) U" O6 o. C6 c0 y: i; z4 H; \& e2 S+ P) N( k
T0=RECIEVE;# d. l2 `7 E: ?+ p
. Y3 `' @. D0 YRecFinishF=0;$ y2 W% _( E T' ~
# @+ v; q0 d: m. `7 J* y, S
CommIndex=0;; N* ~# z. o9 C# u6 n$ c
7 V+ @1 o% f: X2 H" VCommIndexEnd=0xff; // First enlarge recieve lenght [4 D( I6 f# [& x
. O1 J4 i1 j6 z# J7 ?for (i=0;i<MaxRegLen;i++)$ j4 _1 V; a$ n0 i6 [
) s/ h) z* x, a8 a) s: l* R( G
SlaveOutputBuf=SlaveAdr;
' ]1 S$ z) h, j1 ~% |
9 x5 A! D7 O' t# X9 @4 q; I' T}1 e) A8 e0 a$ \/ \
2 ~, V; n Z4 c# k
void init(void)/ e1 Y: i6 G) u$ @2 d& Z0 U& [
9 U$ B/ v% z9 V, h
{
; D8 O! u6 B9 V% \0 s% P; o# w
% L( J/ z2 |" r0 K! I1 cinitSFR();
: \7 b5 `- S- b/ r/ {
6 D2 g$ `. K. G% Ginitvar();9 N( z( Q3 E- E2 y3 u2 O. y: H
: Q4 u3 Y+ A, u8 h# r6 J) Z
}: B- q- ]$ `' j1 T
; i% B) U9 H% {) X Z
void AnalyzeRecieve(void)5 O0 N$ R) |2 \' N, o) `
3 D( L8 H' Y7 R" e( A; t
{
; a, l X& C9 l) Q t8 U' o$ k/ y5 d9 _6 j! P+ e
uint crc16tem;
! W" [/ O: ?1 i. j! r0 c2 F3 c! N
uchar i,j;
; V. U3 z9 e/ f4 a7 A0 Z
' K5 k- h4 f9 n1 A# A; Gif (CommBuf[CommIndexSlaveID]==SlaveID) // The slave ID is matched
4 M) K% n+ S; P K: I2 M
; j% u8 j9 T m5 K5 \' q2 m{
/ O/ ^, y1 y9 ?* [( M) z! f6 y
" x$ E4 D6 u& r) O4 s ]& C" V: Dcrc16tem=crc16(CommBuf,CommIndex-1); // calculate CRC check, erase two CRC byte( {' ?% [$ z# D0 H9 e: U& V2 O' i, H
1 I) e/ Q3 _0 m/ ^! d0 M. I
if (crc16tem==(((uint)(CommBuf[CommIndexEnd]) << 8) | CommBuf[CommIndexEnd-1]))3 y2 _% V- \ ^- r2 m
0 f1 D7 M5 }0 ?# C
{ // crc16 check is OK
/ T4 p2 h2 S/ J, g, r" ?, Y$ d/ E$ X) _
switch (CommBuf[CommIndexFunction])
1 c8 k' L" v$ [2 t2 ]( B9 a- w) {% ^! B( [/ e2 |
{, H7 m6 Y/ y1 s; d
% C9 U9 B: Z. tcase ReadCoilSta:
1 K3 \" ^" X( \: |0 j$ W
2 M& y3 _2 T$ o& {% ACommBuf[CommIndexSlaveID]=SlaveID; // 02 r6 W0 d: y g; _6 j: L3 u
5 O" E' B+ Q% ?, Z- \4 wCommBuf[CommIndexFunction]=ReadCoilSta; // 1
! i/ g s2 C d4 {3 X4 g4 \# w3 U0 j) S4 k1 H
CommBuf[2]=CommBuf[CommIndexNoPointLo] / 0x08; // 0x16 bit
6 t0 _( Q8 s) L4 Q7 J& X- K6 a5 H+ k/ E3 F
for (i=0;i<MaxRegLen;i++) // sim inputval for test6 o6 X% e, I5 @8 j3 @
' x& w% F* ]+ a
SlaveOutputBuf=forceval; // send data of master force coil val) w/ m! _5 [8 K, u3 s4 |
" c( |/ f, C% T- |
i=CommBuf[2]+3;
8 Q. j, a. @. t# b- D/ c2 F$ r# h4 x/ D) W
for(CommIndex=3;CommIndex<i;CommIndex++) // send data Reg to Master
. l# e* t4 K" }3 ?8 e8 b' k7 V8 W5 v) ^ ]( k' @1 L5 B
CommBuf[CommIndex]=SlaveOutputBuf[CommIndex-3]; // hight 8 bit is first send
" Z) s6 X: e1 X2 R2 Y2 A% Z; M8 B( [6 ~ v! t' M; `
crc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
3 F4 ^0 n' g& S+ C9 [9 l
1 V% T( G8 r# H2 {- v# |- W3 sCommBuf[CommIndex++]=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
Z; h1 e! h2 g4 s' N4 l3 r/ A
j7 v: T2 B$ e/ h$ y( M, j9 FCommBuf[CommIndex]=(uchar)(crc16tem>>8); // then send hight 8 bit
5 D l0 P; \! `# }# P" \/ \0 E9 w
4 p/ G& _/ _3 J5 Y9 y, XCommIndexEnd=CommIndex;" B; P2 _0 Q6 X, {/ c
3 k( q! r9 _& O& ?4 U d
CommIndex=0;# Z( y" m2 t' B6 R& v
/ f! y/ D5 f# o3 N
SBUF=CommBuf[CommIndex++];9 Q1 @( L3 q! s/ f: L
! V* g3 D L' K7 S% X
break;& f. P* ]1 V2 K, d+ R# |' [
6 n4 y' P4 {9 f# Q$ I% G1 z9 N; L+ icase ForceSingleCoil:6 }3 S7 U* ~" N& |* p8 F4 \0 K
/ [5 S* }2 e, m" o) d7 D
// SlaveInputBuf[0]=CommBuf[4]; // get data 0x00 or 0xff
6 v6 `$ V: ?; @/ s8 C$ n( ~+ |/ C' a
! n" g" C! N/ a) A/ ]if (CommBuf[4]==0xff)
( Q) ?# x% J# i: x% |2 h2 g/ U" h" o- d' P8 s
LED0=0;7 M2 ~) `; j# b
+ K) {( ]# C" gelse2 Z; O2 Q5 D! i) i! Y
- w5 d+ K5 V$ X' n4 r7 e* wLED0=1;
+ I8 p7 n0 [( B& L4 ?. J8 M
* i. i! M1 E6 S7 D5 E9 C// LED0=!LED0;3 P% N0 k7 Q. o& j( E: q
; I3 x8 Z5 z: O
ForceCoilBuf[count]=CommBuf[4];
2 n- [ i+ J X9 q& j$ a
) e; E3 o% k9 v3 ?- Tforceval=CommBuf[4];, n! n9 Q% T. d N7 e% p1 F9 w
6 Y: T9 a( Q, ^! l7 `& lcount++;4 T8 X1 W) p, D; B) i! t. l' u
1 i) x4 e4 {, V7 dCommBuf[CommIndexSlaveID]=SlaveID; // 06 n! C9 E/ l' a8 |
# H+ j9 L2 ?# b$ B: q
CommBuf[CommIndexFunction]=ForceSingleCoil; // 1' W5 {% V, I# L. n% Y2 U ]2 W! M3 p
, A: ?: T7 @' WCommIndex=2;
$ P9 r# R( P8 z2 _" G+ C( }) w" C# r6 Z6 g o* A& y
// CommBuf[CommIndex++]=0x00;
, k- d% U( _( ?
; m6 s+ F! N# w$ [' g, Q6 A4 j7 T3 } P, h4 l// CommBuf[CommIndex++]=0x01;: v: M1 w8 G6 _
( Z4 X- C$ w9 I/ W: Q1 Q
// CommBuf[CommIndex++]=0x00;
0 ~, C! _; o9 _1 Q2 H
1 r; T8 i+ h: s$ ~// CommBuf[CommIndex++]=0xff;: P- I+ f% J' A
! y2 f ]) s4 F// forcesendF=1;0 e6 B. `+ c; c
7 d- F$ }! G, o9 T t) G% i
CommBuf[CommIndex++]=CommBuf[CommIndexStartAdrHi]; // 2
( |' ^5 g4 A) a: G4 S- ?- F
1 g7 G f) k2 Q9 Q/ Z& yCommBuf[CommIndex++]=CommBuf[CommIndexStartAdrLo]; // 3' f& p$ g K7 k1 H
3 x! A; T3 R# A
CommBuf[CommIndex++]=CommBuf[CommIndexNoPointHi]; // 49 }0 Z1 I& y6 }# l7 _; r
' d) ^$ S' y/ \7 I# G: c8 mCommBuf[CommIndex++]=CommBuf[CommIndexNoPointLo]; // 5! n8 J% L4 t: j( ^( u6 K( u
2 R. N& E5 B# c$ g x- lcrc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data8 J# ^6 z! ?/ b1 L
8 R% J; f6 T) N$ h: G+ m. B5 b
CommBuf[CommIndex++]=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front' S# `3 S- S; @4 M! S1 p6 f# [) P) {
, ] \1 z# ?" J9 }- D" B/ O" SCommBuf[CommIndex]=(uchar)(crc16tem>>8); // then send hight 8 bit+ q! ~! m$ A) U2 u
/ W2 D% n W3 y4 x6 VCommIndexEnd=CommIndex;; c$ [7 |7 [1 @5 X0 H) ]9 o7 i
' \* @% q/ O2 N4 Z8 rCommIndex=0;2 H7 i2 {( m1 n+ q
+ N5 B+ [4 a% O% y; u1 mSBUF=CommBuf[CommIndex++];1 n. |. i8 ^% l5 i) N [
7 W5 R7 E& U& N8 Y/ I' s# l. T
break;
" Y) }& c* k2 q1 K4 m/ S( z0 O7 r" M
* V. `# L' @: x. X7 o: @3 D1 zcase ReadHoldReg:
" D2 ?% T* C$ o4 `/ ?0 r
0 E- d0 H& ~; Q' C" O, iCommBuf[CommIndexSlaveID]=SlaveID; // 0
7 e0 u1 p o" H0 w4 o; Q6 v
! H- P. a7 l b) D3 B! K; ?CommBuf[CommIndexFunction]=ReadHoldReg; // 1. C! s& a, I4 ^8 A# Q
3 H. s# M! |4 h8 h5 L. MCommBuf[2]=CommBuf[CommIndexNoPointLo]*2; // 2 Byte Count
4 ?0 N) ~- c6 Y! e9 V3 A% @4 D; C
for (i=0;i<MaxRegLen;i++) // sim inputval for test
1 G+ U& _6 n* f( Q' @% A2 w6 a5 w6 X5 i0 C8 a- j$ N6 \
SlaveOutputBuf=SlaveAdr;
4 I- e! x; _: Z( o. L6 |; S
r$ e+ \% H4 o' r5 L Qi=CommBuf[2]+3;8 \' k& E& T* R; @1 E) u9 b* j
?; m0 t2 c* c. ~/ k; ]for(CommIndex=3;CommIndex<i;CommIndex++) // send data Reg to Master
: {' }* P, n' J0 x; M5 D2 o
* N8 O! X7 m \CommBuf[CommIndex]=SlaveOutputBuf[CommIndex-3]; // hight 8 bit is first send% Y/ g( i8 v3 \4 ]: W* |" j
2 V3 f# Z+ W \5 Q# Wcrc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data
, J& O T2 `# a* p0 x
3 Z. V0 n# C' O5 x( @0 {# `CommBuf[CommIndex++]=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
) k: [( T# l* M0 K/ b% S ]( O- r% m% E
CommBuf[CommIndex]=(uchar)(crc16tem>>8); // then send hight 8 bit
' w1 U$ q3 k. `: A+ _4 r0 U% T9 ]# U6 \7 z% `7 X3 }
CommIndexEnd=CommIndex;
9 K6 E* Z7 J5 ^9 i: K! L+ t$ [: ?$ E$ X7 i
CommIndex=0; `% T( u4 _5 d5 ^5 I
1 k! X7 j* T+ E% v: T( \
SBUF=CommBuf[CommIndex++];
2 C( e1 D; l- w+ r( Q' }( l3 M) J9 E8 T
" [# u1 W$ @9 V5 P5 h, h3 dbreak;
) F4 i3 V3 b' T6 a
7 m3 v' X! H$ ycase PresetMulReg:6 j% o: S$ e5 Y9 O
1 _' u! ?5 k; F3 K' s7 ^7 F: vj=CommBuf[CommIndexNoPointLo]*2;! R* {+ U+ O" K6 K2 m& q6 U
9 H+ F; C, z9 |1 z( |1 t5 `for (i=0;i<j;i++)$ a' a9 d+ ?" K
( n8 T) G( l0 ]8 m3 _7 pSlaveOutputBuf[0]=CommBuf[i+7]; // get data that master send start 7th byte8 |; f" u* D8 ]3 e% i
. B4 T% \0 D6 A5 ? {# MC" s$ s6 b. T7 `: k9 S2 C
) l T$ T0 w6 commBuf[CommIndexSlaveID]=SlaveID; // 0 c' e; V2 o8 Y; E' f# N% l
6 j. S7 g' f, ?) S9 T4 Y
CommBuf[CommIndexFunction]=PresetMulReg; // 1
# q9 |# b3 r7 ^
2 _9 X4 d: Q' gCommIndex=2;
' o' N0 |3 Z) r! X4 R4 V% p! s
9 ^/ i0 U3 Y( q4 i) ?5 w: PCommBuf[CommIndex++]=CommBuf[CommIndexStartAdrHi]; // 20 _2 n8 X$ e3 e' i( \) Z
7 U2 e0 h w2 L/ L6 N" ?
CommBuf[CommIndex++]=CommBuf[CommIndexStartAdrLo]; // 3
; H" l, ^" ]# A$ O, r3 G" b' a9 ~
8 @! s5 `& d5 ~7 c. Q$ v+ ]$ iCommBuf[CommIndex++]=CommBuf[CommIndexNoPointHi]; // 4
; \; c, b3 Q/ b
0 g+ b! F* T5 _CommBuf[CommIndex++]=CommBuf[CommIndexNoPointLo]; // 5
% z% S% H" ]* n+ H
* g5 Y( h$ C. v9 i o7 C4 Fcrc16tem=crc16(CommBuf,CommIndex); // then send low 8 bit data) O! d! j% K) ^, V' ~
+ x+ B _3 Y3 d8 f! N
CommBuf[CommIndex++]=(uchar)(crc16tem & 0x00ff); // send crccheck low 8 bit is front
. ~! e7 C- v$ b- i' F* o
' q+ Y {3 z R# X" z( UCommBuf[CommIndex]=(uchar)(crc16tem>>8); // then send hight 8 bit
, M7 h2 G4 f, d2 e9 u5 L+ k- u; ^' w$ I( a
CommIndexEnd=CommIndex;0 d7 X3 F1 ~1 I$ ]
: V4 A3 O+ o0 y% B# c8 O3 _' ICommIndex=0;+ W# c% _: W8 z' H% ]3 E- N3 k x
. F+ l6 e4 E# p0 | L( r
SBUF=CommBuf[CommIndex++];( p3 Y. x, s& D/ k( B
1 c# ]' I) f4 @$ J& H2 `break;* W9 o$ o$ i' h2 y) ^; {- |" z. X9 |1 ^
7 Z x" i# j' B( }+ }9 o
default:8 u- Q# {9 N5 ] k
8 v: [- j% F3 \. q" ?) T' ifor (i=0;i<=80;i++) // delay // error recieve again
- p8 r, s- r1 ]* H' z
# n% x; k1 Q8 F+ O_nop_();0 ^' H4 w$ I* C% \ N1 I9 h( b- Z1 O: S Z
4 c) M( O2 S; g- y) m
CommIndex=0;8 d1 F# x# p2 j8 T) P
; x0 C; ?) u5 E# O8 ?
T0=RECIEVE;
/ {* k/ G* d8 V. N# b' u+ D: v3 w$ E& F4 t1 o J" \6 R j0 I2 M
break;
6 c+ P H. C7 |/ q" r2 W2 i8 ]6 T2 K6 @4 u
}7 h/ r5 b- a q. |# U
5 i9 |) `- q* }}
- B# k; m5 Z' z! ~
$ ^7 x# I- ]# B# G1 z8 eelse* ^! `1 B+ w; y& h, I
. k% L/ D4 A/ K- c
{( r$ r) T' V, k7 h
6 c- b, P3 I" B* p' _6 z. Nfor (i=0;i<=80;i++) // delay$ d+ g2 k# a O6 W0 q# H
8 L4 Q6 _. i t8 o! C_nop_();
{3 ]$ x- X2 p! K) M) P. X8 Y* g! T) I4 i) B/ }+ L
CommIndex=0;
5 i% v8 x, I% l; t! v; R9 ~
5 n5 B s1 I8 O* v$ v6 mT0=RECIEVE;- ^7 @6 H- |) n% L% ]# p( \9 S) J& K
( U; ~& e7 l8 \}- a4 |4 l0 J- z5 ~- _6 c, E- f% [: l
+ Q" X# b: m$ n2 H+ u3 f0 ?, H( c& T
}$ X* _$ n" U( \5 o/ J
% y& h: s" W8 R7 `5 }8 x
} w& h8 J/ e3 ^ H5 Y5 w! E2 Z8 u2 t5 m
D; U$ m0 m4 v, e8 _/ c/*------------- intr code is following ----------------*/
& w& d. K: A; a( V( U$ D$ n) s5 K# J! O# d! N
void slavecomm(void) interrupt 4 using 21 j% ~0 ?; ^) a, r6 ^$ \ L8 o
- i( g# a2 `: l6 |) b+ g2 w{1 u( O4 A6 g# O
$ i! x/ J+ K2 o7 z7 D/ kuint i;
8 V' W# {" n) M8 z/ K+ P p1 e6 @7 G1 ~
ES=0;
* e) C% u2 @& X' ~$ x; T
' w Y1 i6 }" f& N* uif(TI)
- U. @; [# l2 \: H) E: }$ D0 a
{
( E( r- L7 r \3 r! w" F# N( r
! }7 Y; R. Q- v1 V1 H3 zTI=0;, s( {9 Y, O6 E# [8 `: H) Q
0 d& A# P2 e& G1 L3 ^- s; \ m
if (CommIndex<=CommIndexEnd)
9 k! ^* K* j8 k' U8 W
0 f9 K1 B! R& ~* g; z{
1 v$ c4 e7 d, L; X
6 q- f2 [4 U! U2 t! V8 zSBUF=CommBuf[CommIndex++];
3 e- J0 z0 J, j( e+ c2 F+ U5 b! ~" n7 a# {& w' p
}# C' \7 E+ n* `# P: P( ^; L" }
( H, T8 D+ B* G; u; jelse$ G z1 f9 P: \' O/ s F& i# y
4 l c! v6 ` O/ v0 O) |
{
% y. `; ^8 F K
2 p. u+ m+ }- i+ |* e0 x// if (forcesendF)
4 O0 [9 O2 ]9 i+ E+ N* F% [, s
4 w9 `# p/ i; e/ |// _nop_();& H$ W0 F, R& s" @" t9 c
8 q8 ~; {( i7 v$ c6 tfor (i=0;i<=SendRecieveDelay;i++) // delay% o3 `$ A0 i9 K4 l; W; ^. u
/ |# h2 v6 s- r# Z/ S
_nop_();$ `* y7 I% U! @1 o( J( v8 c2 i: [
5 y0 L) v; `+ R; X: pCommIndex=0;. x. x6 g2 p0 ^0 S
% `. i) }1 l; z, o( t
T0=RECIEVE;: [; f/ V% c1 \) @9 {, J1 Q
/ ?7 T- d6 e/ }) s" U7 Y
}
$ L) f: O: _4 Z5 S4 ^1 H
) e' Y+ n, w7 c( `" }9 u u2 J2 c}
) p5 E) [2 f( ^2 Y
4 u0 R6 H5 K$ Yif(RI)
6 O3 z/ g' `, U9 ~3 p' G# n( |/ [
{4 A+ ^6 |0 R& P; R: w6 U" y1 U
7 W$ S: l. ?/ D6 l
RI=0;
3 k N: \* f0 i6 Y( q
# K" t% v" U, `* p/ z. Bif (CommIndex<CommIndexEnd) // CommIndex less than recieve lenght& D6 ^: I+ {' @+ X2 `# W8 P
' w* t2 _, {' N8 C
{
8 [1 V# L5 n" U7 T7 U; j7 w/ a S! Z& X; C; {6 [
CommBuf[CommIndex]=SBUF;2 y1 C4 P& T6 { H: D8 H& l
9 B- X" x9 n: e2 B
if (CommIndex==CommIndexFunction)% @: Z, }3 i" w6 u
' D, `! G4 p/ R6 {& ?2 ?8 R{ [) Y2 b' r0 {2 k+ ^0 Y* ]' U
. f2 p- N" X% a {switch (CommBuf[CommIndexFunction])8 x, T. J: R( C0 u
2 N/ q7 F8 \# V! i K{& O4 s, d- |. U* e! g$ J0 e" R. Q2 T
* R3 [- s4 J! n) z7 d. X
case ReadCoilSta:
' h/ [) j. {3 L# i/ w" o6 y( ]; p1 O0 D( H) O- D3 k
CommIndexEnd=ReadCoilStaIndexEnd;, i0 A' n- \8 C4 B
% S0 A/ `4 B- j- Z. B0 h- Q$ m" ?
break;4 w7 w1 E G* v; v
# W& o* o: z7 R$ R8 V; Ncase ForceSingleCoil:
7 W1 z) ?0 R8 N. `# P6 r
" b4 S& A$ Z q+ F7 l3 F& c7 tCommIndexEnd=ForceSingleCoilIndexEnd;
( v- y; b J. k2 Z6 V
& P1 e8 @/ P8 V" V, bbreak;5 V% R+ Y9 ^ |' g
2 H$ b9 h# j2 u3 Q+ E+ R% C
case ReadHoldReg:5 n7 ^- j. Y1 c' j$ m) h9 I7 s
- S0 }' O+ r8 [ s8 h |8 r( M$ f
CommIndexEnd=ReadHoldRegIndexEnd;0 i+ l& Q+ A/ p3 }1 h3 R
( C ?. Y4 h4 q
break;+ ~8 {, O7 L7 `/ X: H
( d- v4 a1 o+ f6 {
case PresetMulReg:
C8 z1 z' A1 v* w4 Z
6 K* F ^$ ?) P( {CommIndexEnd=6+CommBuf[CommIndexNoPointLo]*2+2;$ h/ L* c7 j e( l2 \, i, |( F
B9 B1 P# h& [( x- L$ t$ f. T
break;3 O/ n( k3 i- g+ A1 ~ E. K- W
, u4 s2 R! l$ o* H5 R- {
default:
7 i% S) \% z1 u7 b9 i9 p
* b5 K* k3 d: j' Cbreak;
. Q& {; U5 a# F' v1 F0 t; g! i, ^9 ^* `. D- t* h# K7 e6 C5 g
}* m- O# {7 [1 X3 M
) z$ `0 {: c+ A' l9 |; H" ?- W
}. }, r- V# s$ P
% x% V7 x& Q% E- W% n. A8 [CommIndex++;8 _- r$ C) z! l) }
5 V6 i/ R* M+ i0 U, F3 p$ w; O
}
- S( j3 J" ~# l3 Q( T" Q4 a _
" _. I) m. Y' Q& T1 u' Zelse // recieve finished CommIndex==CommIndexEnd
/ O2 v: G% d+ J$ f/ A
8 s# s6 P( u X6 P3 b; t0 W! F+ R{8 V: x6 \2 O$ P/ S; F" C6 c* E# e
4 D" p1 Z2 B) Z# D: c3 t+ I y. {. lCommBuf[CommIndexEnd]=SBUF;4 R* R! d! q. h, P6 @& O7 h
. f" E6 [* [7 | Z' XRecFinishF=1;
3 P Z4 z- z! H4 V! B% ]$ [
% P" g( S& m, r/ Wfor (i=0;i<=Sen
+ ^2 K1 x1 l5 X! V% f# w* @5 G @3 {( X; [# Z) i6 h
dRecieveDelay;i++) // delay
$ h# P) V) H) C8 `, Q$ v; x( u! |7 p- W8 N' b
_nop_();
y/ m. M. n0 k& j( R( C3 v( y9 k6 A5 [; `# l
T0=SEND;
" U/ s4 n; }' l- q" ]' k6 a% o( |3 x; h
}" p p) ] X, X3 Z B
X; e: N1 n- W6 G. ^
}
: t( w; l9 h) @: l5 |7 ]4 W7 W' k. Z& w/ J" Y" B: g
ES=1;8 R6 Z. {& f! O! r8 _
7 j1 L+ O$ [% Z- \6 ]0 _+ {
}: A! \9 N& A" l0 R3 C
: D% O, R; ]# C2 B. s" y
/*------------------ main code following -----------------*/
5 W; j- r5 ^- l( d
+ ^% G- h3 R) A/ svoid main(void)
+ Z, g) T5 f4 `. `7 w0 `* E, ]
{3 N8 c5 r" p7 _) U
$ G- r' H' {3 a2 s1 D
uint data i;
% F( L+ q2 \( u6 P* g
" ~! u' L7 ]/ u7 S# t/ S: b( winit();8 Q+ b8 }3 G: R- o( o
' n% }, k5 `2 Z5 P
while(1)1 i: r, ^) c8 O# {( Z3 [# ]5 E
+ n* S5 U' H9 J+ j
{
3 s( C* _1 N1 u
/ _" ~' o" j# c) `* R// LED0=!LED0;
' Z! G& y9 a# K' ?; w1 C6 E1 c7 T# K& s" z7 V% V
for(i=0;i<=9;i++)4 F+ A; d" K: s S1 K2 \9 i
) j" J. I, ]2 H. T_nop_();
0 [. n8 C. c- D& L
" n5 H4 L4 Q* D h1 N4 u. r. _$ _if (RecFinishF)! z K, y4 f" V5 l. w! X
# T0 }2 g0 q/ ^+ Y
{1 K, | M7 ]% @
( n! ]9 A) S; v+ M: }
AnalyzeRecieve();
4 U+ }1 G2 P/ v
8 d* d, l& s6 g' @% n( `4 ]# {5 z$ ZRecFinishF=0;+ L1 L: I6 p" [
! h' m& @3 b1 o0 `4 Z. [
}
' X& N# C% L" m6 C# `
; q: w5 F% _& o" T1 o/ K}
3 ?3 K% c F7 K$ q, M2 a) Y& y. x7 @9 }; \
}" ^. k% j0 N' Q% u: {
) ` [. D3 H1 w8 p k- `: }4 b |
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发表于 2019-1-21 10:03
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