温度检测报警程序（可调上下限）

helendcany · 发表于 2019-1-15 09:30

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温度检测报警程序（可调上下限）

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#include
6 [4 d9 C4 c8 F  ~4 b#include
, b0 b" g* ]6 X5 _* s#define uint unsigned int& j# M6 c& `9 f( d/ c5 P
#define uchar unsigned char
) M! H' J; j( j6 a3 z8 N) j* S; ?; r" V5 g6 a" ]
sbit DQ=P2^2;//ds18b20与单片机连接口3 l! X. [/ C0 O0 S: C) L9 i, q
sbit RS=P1^0;; x- R) w3 j& W0 Z% s# O
sbit RW=P1^1;- Z7 r, E$ G( @, d& w9 K! F
sbit EN=P2^5;9 I+ ~5 u# e  a" t  ^
sbit en573=P2^6;. r/ J# {7 i% H! ^
sbit en1573=P2^7;
+ w( p! _6 W# o& J( ?
& h2 x& q, @0 e, m) q+ Vuchar data disdata[5];
6 o* M" l2 ]4 Luint tvalue,CurrentT=0;//温度值
. \" V/ d+ i# [0 m# t( Q7 F) _uchar tflag;//温度正负标志  z- ?$ y6 r; k* ~, @' i6 i
4 p  W4 _% C2 S" P; y0 O4 N
            ; S6 z8 X; |& I9 |
#define LCD_BUS P0
9 x" ^( g) P: V8 w2 l& H( y' Q
. o+ J/ t4 J; c, Y! f- G6 D' T3 k3 esbit SetKey= P3^4;6 x, W5 S( U9 _
sbit UpKey= P3^5;1 Y9 u1 j- o4 H0 Q  n* c
sbit DnKey= P3^6;0 h4 U. h1 a6 C# y- M: h
sbit BEEP= P2^3;$ Q$ U$ n2 z0 E0 a7 |: g; f) E5 A) e1 o
- l: ?8 r+ X' l% M0 ]2 ?% ?  O

8 K7 Q% Z6 k  [( [( uunsigned char AlARMTempLow=10,AlarmTempTop=40,Set=0,NG=0;
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2 R  A/ E1 Y  x  F, h! B

5 v. x% q: z) d5 |7 F2 A% K6 i/ s/ b( `

' g5 O$ A1 c& d1 ^, N3 O* x, K
. f) e. \: z# V/ qvoid delayms(uint ms)                //延时xx毫秒8 M5 Y: h; @/ `0 R( L: V
{
+ i! _! j( ?- m" O/ z       uchar i;2 P3 M3 U2 E7 R. E
      while(ms--)
5 x' V5 V( [0 p# T( ]4 ~( Z       {3 k0 F4 X, }! B4 I: E
               for(i=0;i<120;i++);
+ j* ^5 P4 D2 E) y* s6 ~7 i       }6 Y4 h  {7 N' x1 A9 \
}3 N( ^! `' C6 V1 n$ S2 t0 H
1 W: P1 \$ {0 C' P
8 N! @, g2 J& n

; W5 N( s" ?* z' p7 w! Avoid command(uint com)       //LCD写指令7 R2 [8 y0 V& C# c3 d. R. v* Z2 A
{
' n$ ^" D. b. E$ v9 g7 L! o RS=0;                               //RS为07 K6 y: r! E, J) m  S+ J6 }/ t
LCD_BUS=com;       //装载指令* L3 I) y2 ^5 z/ C0 j- c
delayms(5);                //延时5ms
; o3 \& q3 N9 y# }- r( _3 X6 N, i5 F EN=1;                               //LCD使能
# R' n  Q4 e% |7 h; ] delayms(5);             //延时5ms! H+ n8 o/ K( ~9 r/ ]$ h
EN=0;                               //LCD不使能/ ^9 Z5 A0 e* [4 d6 Y& s$ }
}& {" W1 v' \; {
) `2 A2 O! }- U# B- F
void write_dat(uchar dat)       //LCD写数据& M  ~  j6 o! j8 s
{' Y: B# n1 Y; {! C; i
RS=1;                                     //RS为1
+ |" o0 e( d8 K. K. z6 ] LCD_BUS=dat;             //装载数据
2 {% o8 e- ^3 ?: X5 n7 \ delayms(5);                      //延时5ms' N0 \0 |( X* y1 Y* X4 r
EN=1;                                        //LCD使能
3 }0 W# p) a- V# e3 U' R- t9 Y delayms(5);                      //延时5ms
8 ^( O* J  R& l9 b' M+ u& n EN=0;                                        //LCD不使能
% P4 g. v6 |) a+ J( l}/ M5 N# i3 [% ^: w" L

" W9 E* ~, H. P5 pvoid writestring(uchar x,uchar y,uchar *s) //LCD 写字符串0 ~+ _/ ]+ Q1 _1 q
{    # V" J' E' P: ], c# k
      if (y == 0)  command(0x80 + x);    //表示第一行
3 N# a; a8 V  M       else       command(0xC0 + x);    //表示第二行
" w3 [4 {; U0 |& u% m- J7 t3 X3 O" l/ |/ M
      while (*s)                      //判断是否字符串的结尾4 X' K# k  v# ^0 I5 v4 w  I! L
      {
# R6 h; Z) C  ]& p/ d( }+ F. m    write_dat( *s); //显示当前字符 7 E/ A" M! N' {0 S2 n* t, |6 F! S+ X
            s ++;                            //字符串地址加1
! S; A1 d  J0 e( B$ |  q       }
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+ g7 b" J8 t- B" }1 c8 i
void writeChar(uchar x,uchar y,uchar s) //LCD 写字符串# t- j& a) N) x; B
{
! j4 M/ y& p7 F& I: K8 a       if (y == 0)  command(0x80 + x);    //表示第一行+ H* z( z3 M" m
      else       command(0xC0 + x);    //表示第二行
# s' l6 [1 x% u( T2 B( r
* k4 L- z9 _" J5 b" f       {
* F9 z2 m8 d) h, h2 t5 k1 o* L    write_dat( s); //显示当前字符 9 K2 ~( B# s0 q- k1 Y& S4 G
      }' B) t- Q; D) S
}% r5 k$ |+ g/ w6 {
; S: G1 g' E( F! A+ _3 I/ ^; g
* Y$ L. x/ X1 w
void LCD_Initial()             //LCD初始化4 c; v; N# P$ z7 d4 R3 \0 T
{
) |% A) A0 ^( }- M- g3 H5 ]: d8 j0 `; U+ X; N1 X& u
EN=0;                               //LCD不使能" i; A0 ?4 Y1 x2 t# }# I# e
RW=0;                               //RW为0& N' Y6 F" [7 v
command(0x38);             //发送初始化指令
8 E9 M/ r/ u& y8 I command(0x0c);             //发送初始化指令
" N3 g+ N0 l5 N/ T  G. {  C& ? command(0x06);       //发送初始化指令; K+ G) z5 Q! y7 Q! B  U
command(0x01);       //发送初始化指令% [, T1 y2 ^9 h; W- W
command(0x80+0x02);       //发送LCD初始位置
# ?! ]8 h5 }) q}
* k3 z6 o1 N$ t; G
5 V* ?6 z9 u' L8 @) A
5 u& F) f# C; d7 R/*************************DS1820程序****************************/
% }' ?6 ~' M. L2 o( Y5 avoid delay_18B20(unsigned int i)//延时1微秒
5 w9 K0 L( z; I: G- I1 B% |{
# u) E( _* ?: N- H& T5 H8 |8 N$ C while(i--);- W. @* Y: J" a0 W4 I
}3 j5 `0 O6 F1 ?3 Y& s/ h& M8 k

) k9 P) x. h' q! {: P0 }void ds1820rst(void)/*ds1820复位*/$ {: V" Z3 a+ f4 \* z- F
{ $ Q$ v. d+ j4 K) h6 T
      unsigned char x=0;8 Z4 B, u5 @9 w. v2 i! _
      DQ = 1;       //DQ复位
1 q" M9 [4 p- j2 e       delay_18B20(4); //延时
: c; r2 }9 k/ w" x; x       DQ = 0;       //DQ拉低
6 I& m! P& g8 N: x3 Y9 c' G: P       delay_18B20(100); //精确延时大于480us" T4 {3 K* x) f
      DQ = 1;       //拉高! a; ^, H* ^5 z0 Q  S
      delay_18B20(40);
, O" m+ T  w+ O! G}
! A2 [. Z1 m2 D# t4 ]) {: X7 K, T, {
) I2 c- P, j5 ^" ^, Huchar ds1820rd(void)/*读数据*/9 z% \; l& l/ M" ~* t% L0 h) y
{
- k0 t" D: R& z       unsigned char i=0;: F% |& C# ~2 H; ~
      unsigned char dat = 0;, k; R9 W* F1 h. Z; _* Z
      for (i=8;i>0;i--)! [1 Q' Y6 L, ^, d
      {
1 Y3 z5 g  J$ E9 T- X             DQ = 0; //给脉冲信号
% e, F- ]/ j6 c/ w             dat>>=1;
; E5 L$ v' X: h; @7 F             DQ = 1; //给脉冲信号" i& E8 J# q( C& h( H, h2 R& ]4 `
            if(DQ)
7 S" V/ d+ W, K% ^# A# k) q" T             dat|=0x80;, n" p2 @+ h* E0 N( s7 K
            delay_18B20(10);1 o0 L( V+ w+ N$ K+ s- X7 I2 w
      }
0 `! g* C0 o; |: A3 i return(dat);' J, H  ~" c& d% }! o  A
}
' b' n+ B- M# t1 M* v7 ^
9 w& {4 ~8 Z4 q2 j! Y! Y& xvoid ds1820wr(uchar wdata)/*写数据*/( Q6 y8 M0 E7 V2 H2 @; e9 }0 n) y- n
{
+ ~# x# t* R5 }5 q7 z! y) L& j" F" R       unsigned char i=0;
% ]8 N! j7 ], o* w; G& |4 v for (i=8; i>0; i--)
# [# A. m4 y' d7 Y4 t" Z4 t { : @$ _: z9 N/ z
            DQ = 0;" G# W3 Z; j3 E( a" d( X# I) q! Y
            DQ = wdata&0x01;; f; m- L$ x/ D: V' v
            delay_18B20(10);
  ?+ M4 ?7 B4 _+ ]( y             DQ = 1;! o" T* c" E9 O2 s: e
            wdata>>=1;
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}
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unsigned int Read_Temperature(void)/*读取温度值并转换*/
, N* \/ X; E. ]7 S/ N( t6 A{
0 O$ D) q5 s# b. ^4 x1 ]" t       uchar a,b;6 ^/ j! _9 t* p. Y/ a8 I$ O. G
      ds1820rst();
/ G" Q6 p! x' g* ?$ p1 M       ds1820wr(0xcc);//*跳过读序列号*/2 V  a! h/ S/ L. M
      ds1820wr(0x44);//*启动温度转换*/) z" }1 t5 e- r) M4 {: a( e
      ds1820rst(); / X2 I3 M2 W& N8 F6 v
      ds1820wr(0xcc);//*跳过读序列号*/
9 A8 y/ K1 s0 N) l       ds1820wr(0xbe);//*读取温度*/ 7 t( J6 T* `- V
      a=ds1820rd();
- {2 L3 l" Z# i3 a2 b  M       b=ds1820rd();6 k) H0 H6 R8 Z/ g
      tvalue=b;. B6 M2 X" C: T( `4 W% b
      tvalue<<=8;- ]# n: o- D0 C" G; `) a
      tvalue=tvalue|a;: y9 F9 g6 S, {* h4 V8 D; K7 R- X$ F( q: \
if(tvalue<0x0fff) tflag=0;# x& I' ]* G6 t2 g+ N; ]
else {tvalue=~tvalue+1;tflag=1;}
: ], O5 H# Y' e5 E  c1 Q1 W       tvalue=tvalue*(0.625);//温度值扩大10倍，精确到1位小数7 s" i4 ]$ k5 _5 r0 p8 p
      CurrentT=tvalue;" d* n0 i  B1 d' r
      return(tvalue);
+ m5 I, C8 {3 U: K' G' U0 U}9 `: s8 D# t! S) L
0 G( p5 m7 }8 i0 ?1 b1 X' b) o) x
void Display_Temperature()             //显示温度& G+ m& \, u7 h2 n
{+ \$ \, g' N3 w5 g
      uchar flagdat;3 ]3 m- k. ^- q7 K; m4 y' j; x# F5 z' ^
disdata[0]=tvalue/1000+0x30;//百位数3 i- {: ?- J1 |! _* _% u# k7 V
disdata[1]=tvalue%1000/100+0x30;//十位数! M: U3 f+ m& j, `, K% v  w
disdata[2]=tvalue%100/10+0x30;//个位数. c1 ]; Y4 u4 D- X7 k
disdata[3]=tvalue%10+0x30;//小数位. a0 K6 ?& z) {8 r
! T+ r1 x; U" N$ H' \& {
if(tflag==0) flagdat=0x20;//正温度不显示符号: m  e# B* E8 l; @9 R: K
else flagdat=0x2d;//负温度显示负号:-, k- D4 Q3 |& U9 K2 X8 y( v: l- d/ @
//if(disdata[0]==0x30)
9 @: n) i" E7 B, A- o: N$ W //{
% u5 o+ ]6 w8 y- Y8 j! ~       //       disdata[0]=0x20;//如果百位为0，不显示
, E# v5 _4 a3 o       //       if(disdata[1]==0x30)       disdata[1]=0x20;//如果百位为0，十位为0也不显示. Z$ S1 a# ^: n3 B. O! f, J5 `
//}2 g/ w; l, r9 ?$ ?- m8 \, P* t+ e$ m
      if(tflag==1)
% L% e; V! r- t+ A/ o( t% w       {4 c( D" v, K" [2 W. }3 m# ^
            writeChar(10,0,flagdat);//wr_com(0x8a);wr_dat(flagdat);//显示符号位) J6 k" X# [6 T1 w+ @2 Y" O& V
            writeChar(11,0,disdata[0]);//wr_com(0x8b);wr_dat(disdata[0]);//显示百位: o' i8 L: Q; W8 N8 J
            writeChar(12,0,disdata[1]);//wr_com(0x8c);wr_dat(disdata[1]);//显示十位 3 ?& \' j9 p$ V/ d; p" Y% O, C) F
            writeChar(13,0,disdata[2]);//wr_com(0x8d);wr_dat(disdata[2]);//显示个位
/ b$ }. ^: W8 z2 P+ c' T0 ]             writeChar(14,0,0X2E);//wr_com(0x8e);wr_dat(0x2e);//显示小数点 ' L! y& R! M; Z8 S' H  E$ K. K: R
            writeChar(15,0,disdata[3]);//wr_com(0x8f);             wr_dat(disdata[3]);//显示小数位" h/ n$ ~9 B; i. a, K% y# I$ l. U9 e
      }' s* P8 g1 z' F1 X+ H9 x
      else1 F5 [4 X- T' v& s$ T. x9 x) F
      {/ [' Y9 l' M  G  @( e
            writeChar(10,0,disdata[0]);//wr_com(0x8a);wr_dat(disdata[0]);//显示百位$ p, V+ K* A% K3 i7 E
            writeChar(11,0,disdata[1]);//wr_com(0x8b);wr_dat(disdata[1]);//显示十位 $ N7 k  m8 e0 d6 O* r5 o- q
            writeChar(12,0,disdata[2]);//wr_com(0x8c);wr_dat(disdata[2]);//显示个位
1 P1 r* u: n$ c3 e2 g* G7 k+ ^             writeChar(13,0,0X2e);//wr_com(0x8d);wr_dat(0x2e);//显示小数点
7 d2 \/ S4 b, p8 @0 }/ j) p3 ?5 C             writeChar(14,0,disdata[3]);//wr_com(0x8e);wr_dat(disdata[3]);//显示小数位
! g( [( m2 m$ g/ N  q       }" C3 m6 Y6 d2 k* {
} . ?' o) m4 y, ~4 P: _
) ^* }& z, i) e6 ^3 G
void SetFun(void)
! N: l# ~& S$ W+ E+ c+ P+ {/ g{
( O% ]. z8 p* I6 o. S/ H       unsigned char i1=0,i2=0,i3=0,i4=0,i5=0,i6=0;( }- T+ h/ y( l; I! Y) Z
      if(SetKey==0)
5 \# o, \' F- C       {
; d* c$ U( k9 f3 G$ x             delayms(20);
2 Z2 r7 z! x3 G             if(SetKey==0)
; g/ G( P) b/ D: {             {+ T5 P8 S' u- }6 ?6 `- F- F
                     if(Set<2)       Set++;
) ^' T/ d1 J" l9 f8 Q1 V                      else Set=0;2 T3 E0 x3 E" ]% e; z5 d+ e
            }
1 I3 N3 \' J. p" C$ i% G             switch(Set)8 h- a/ ], q% w; K8 e! o" T2 t
            {
  V4 S& x" T/ M! K                      case 0:  writestring(0,1," ");writestring(8,1," ");break;
8 f* G- G" c$ h: r9 A3 E4 |                      case 1:       writestring(0,1,">");writestring(8,1," ");break;
3 ~$ {3 B. j' J" D+ H- V. E% p/ `                      case 2:       writestring(0,1," ");writestring(8,1,">");break;1 t% x8 T7 M! {
            }2 k% l- z. T3 E7 @$ k
            while(SetKey==0);9 r3 O' Q; o& b+ q
      }
' K2 A. b1 E  X3 }5 F/ Q4 Z       9 E/ [( ~0 m% v" W
      if((UpKey==0)&&(Set!=0))
9 m) b: ]. X, F' V; E: G" g: ]- x       {% c2 F2 b: G0 B$ O8 N5 R1 B
            delayms(20);: ~8 e2 y+ X. p1 V; ]8 y
            if(UpKey==0)& n$ f  P4 w; \4 [* w* Q6 j# U/ `
            {
7 c& G- O  A6 \. a2 a                      switch(Set)* t  R: f# l) Q
                     {
9 ^2 \2 D& K1 E) V. I8 v                               case 1:       if(AlarmTempLow<99) AlarmTempLow++;else AlarmTempLow=99; break;' C' B) H9 ~  S
                              case 2:       if(AlarmTempTop<99) AlarmTempTop++;else AlarmTempTop=99; break;/ A0 E, d/ n- l& ]4 n( G
                     }- Z) o( [) }" x5 w# A, Z
                     i1 = AlarmTempLow/100;       //获得温度值的百位2 y/ C+ `$ }0 e5 }4 K( V
               i2 = AlarmTempLow%100/10;       //获得温度值的十位2 \- q4 J1 I0 o5 }- ]8 L
                     i3 = AlarmTempLow%10;                //获得温度值的个位$ \$ ]' y, i) o( H( ]3 i% }& g
                     & M3 _  B5 L! E( h3 G( j& B# Z- h
                     i4 = AlarmTempTop/100;       //获得温度值的百位, d, P" A$ M* s9 ?* @; N: R
               i5 = AlarmTempTop%100/10;       //获得温度值的十位' k8 }$ F' {& j! X
                     i6 = AlarmTempTop%10;                //获得温度值的个位
/ I; E5 ~1 ~* h* U6 P& S                      writestring(5,1," ");/ p+ D: X- H/ S
                     writestring(13,1,"    ");/ M( a8 L! D  [3 s: v& A
                     if(i1!=0)       writeChar(5,1,i1+'0');
: ~# k% ~) W/ z  X* @3 x0 t$ @4 W                      if((i1==0)&&(i2!=0)) writeChar(5,1,i2+'0');
; l/ k8 ?  Y; u0 }                      if(i1!=0) writeChar(6,1,i2+'0');
) _  P$ p% |+ Y+ N                      if((i1==0)&&(i2==0))       writeChar(5,1,i3+'0');8 s; m8 }- J! U& G
                     else if((i1==0)&&(i2!=0))       writeChar(6,1,i3+'0');
* S0 H) p' R9 F$ |                      if((i1!=0))       writeChar(7,1,i3+'0');
9 K( {0 @/ V8 U9 Z
- E# l3 M4 H" v9 c9 H& f                      if(i4!=0)       writeChar(13,1,i4+'0');
; A- E# |0 m8 q- o                      if((i4==0)&&(i5!=0)) writeChar(13,1,i5+'0');
& n: G5 o, I( X" |* v                      if(i4!=0) writeChar(14,1,i5+'0');
% X* ]- d3 Q: i! _7 W" k/ U! z                      if((i4==0)&&(i5==0))       writeChar(13,1,i6+'0');2 f: f, t3 ?8 O( G% ?3 _& i
                     else if((i4==0)&&(i5!=0))       writeChar(14,1,i6+'0');3 G2 m8 `$ m+ w  j
                     if((i4!=0)) writeChar(15,1,i6+'0');
& e# A, `" k; Z0 l4 O' d                      while(UpKey==0);
. a  a1 t! Q0 \$ M/ R7 I             }
9 V% @, s% F9 P: `+ N- _+ H       }1 N4 e3 ?+ O; y' s6 B% F

1 p2 Q& O" Y) ^  R. {       if((DnKey==0)&&(Set!=0)), l: o* U& _/ G* v
      {
0 \( Z+ L; ]! }+ [" e# R4 E# G! Z! w, T             delayms(20);
5 N' k  o5 r- n# T7 S             if(DnKey==0)% J6 J! B: t& n% t! L9 Q
            {: }( b3 u$ }0 I: U) h8 P" E% f
                     switch(Set)& `" I$ n! C$ U0 ^( x. @* a0 B
                     {
# q. O% E" _- h3 V                               case 1:       if(AlarmTempLow>0) AlarmTempLow--;else AlarmTempLow=0; break;
1 z0 o  z3 N0 Z0 s5 X4 N* `4 e                               case 2:       if(AlarmTempTop>0) AlarmTempTop--;else AlarmTempTop=0; break;3 l5 `0 U# X# W. L
                     }
6 V) T  l" v! t$ _" n                      i1 = AlarmTempLow/100;       //获得温度值的百位
- m0 R$ P$ U) M0 G( l# Z2 U                i2 = AlarmTempLow%100/10;       //获得温度值的十位
; K, z4 i( b, k6 X# q8 O                      i3 = AlarmTempLow%10;                //获得温度值的个位
4 h$ q5 X4 s, S: V# Z$ p3 ?0 f# P% a
, O6 m+ {& X4 T6 E$ w3 O4 v                      i4 = AlarmTempTop/100;       //获得温度值的百位
! v3 S+ H% \# P                i5 = AlarmTempTop%100/10;       //获得温度值的十位6 N/ ~5 X, k: W8 G7 {1 G
                     i6 = AlarmTempTop%10;                //获得温度值的个位# I' m$ e! Z) l/ K! [
                     ' s, k& R' U' Y0 x$ E
                     writestring(5,1," ");
' B5 ]+ ?" a* h                      writestring(13,1,"    ");
& j/ J" c/ c: s0 e" Y8 K, g                      if(i1!=0)       writeChar(5,1,i1+'0');
$ E# J) M7 K8 z- d                      if((i1==0)&&(i2!=0)) writeChar(5,1,i2+'0');. N' x: w/ ^5 O. L5 Q0 V
                     if(i1!=0) writeChar(6,1,i2+'0');7 _( Z% W# L0 i6 l7 i8 h  b
                     if((i1==0)&&(i2==0))       writeChar(5,1,i3+'0');5 J. R& t, s4 N+ ^
                     else if((i1==0)&&(i2!=0))       writeChar(6,1,i3+'0');9 {* j  |$ |. [+ o8 w% M/ X8 X( R
                     if((i1!=0))       writeChar(7,1,i3+'0');8 N8 d/ u; u& [0 [) g" R3 `  G
                     9 K" n$ o# n5 M
                     if(i4!=0)       writeChar(13,1,i4+'0');
! Z1 u( N& V+ ^5 H. g0 l+ ^" X# v                      if((i4==0)&&(i5!=0)) writeChar(13,1,i5+'0');
3 B& L  |' J: e9 h6 J3 d& W                      if(i4!=0) writeChar(14,1,i5+'0');
) P9 _& U: e7 K' ]                      if((i4==0)&&(i5==0))       writeChar(13,1,i6+'0');1 S7 h6 _2 F( d; K' d
                     else if((i4==0)&&(i5!=0))       writeChar(14,1,i6+'0');, l7 O2 {1 M+ J( v. ]
                     if((i4!=0)) writeChar(15,1,i6+'0');
- J0 F; {) D+ i
1 `, e* t- Q$ h                      /*writeChar(4,1,i1+'0');
5 }! J% @; z# g                      writeChar(5,1,i2+'0');
+ u/ w  A! P/ Z2 M! ]! w, p" K6 u4 p                      writeChar(6,1,i3+'0');
; W7 |4 o2 J: O1 Y                      writeChar(12,1,i4+'0');& q9 w( q3 R: ~3 ?' x4 ?8 w* ^- P
                     writeChar(13,1,i5+'0');  U# n$ `* p. P/ r; d  V. m
                     writeChar(14,1,i6+'0');*/
* a: ]+ G4 C& m                      while(DnKey==0);% z6 T/ k' R; @
            }2 r' B* O- H; P1 J
      }
0 l% Y, j0 s2 g+ g}
+ x9 y/ A2 ?3 K" n# O. q, N0 t7 j/ W9 E/ n% P' Y- Q
void main(void)! r7 i: [; L- o* {) F
{
5 i' ^4 n! J9 X& f4 N! \: k       unsigned char i=0; //P3=0xef;
8 J) m" j2 b5 ~# P# O3 q( B1 T1 O       P2=0xef;BEEP=1;2 c  s9 K* J" Q$ y; l. G
      LCD_Initial();       //LCD 初始化
. l' k$ P7 O) Q9 Z8 }: q4 Y* E       P0=0x00;& s8 u( x; o7 g) v
      en573=1;9 L% `' b6 m4 r$ y% s5 _
      en573=0;
% R2 t5 {' J+ Y) e; [5 U$ x/ F       P0=0x00;, V9 L& x9 h. J2 z0 C
      en1573=1;
" P* n9 W$ A7 z( V3 Q       en1573=0;
( q/ a8 b  O7 a4 R* K       Read_Temperature(); //读取温度值& x( G/ T3 J1 Z' O; t* g2 w
      writestring(1,0,"DS18B20 Alarmer");       //显示“DS18B20 Alarmer”; Q+ h/ _! V9 `' {
      delayms(1000);             //延时1S
0 K/ N+ x/ R" [4 [* |( a5 e$ ?$ `       writestring(0,0,"Current T=    ");       //显示“Current T= ”6 p) ^7 N$ A; U+ \/ Q6 B: m" N
      writestring(0,1," Low=10  Top=40 ");       //显示“ Low=10  Top=40 ”5 D9 j* B% R0 j) n) i) o% A
      8 W3 x+ ^! z7 r: h5 {, v. I/ \$ P* n* @
      NG=0;6 ~+ Z% g7 g9 \7 |; j3 s. A
      while(1)" X8 X  ~. V# X3 {0 G4 X" u
      {# a) Z, N2 z# j  s( N# j
               Read_Temperature();       //       //读取温度值8 }+ `" L0 t! _# K
            Display_Temperature();             //显示温度值/ y: i$ @% \0 N% t; E+ l
            SetFun();
5 _) }" t1 A4 N             if((CurrentT<(AlarmTempTop*10))&&(CurrentT>(AlarmTempLow*10)))
3 O# p9 w5 w6 ]* k9 ?- H             {( ~1 D8 X0 ?2 G8 X2 d# O6 Q/ l0 i
                     BEEP=1;7 z2 N+ B0 ~  `  b+ b
            }
) Z' @& y- p; ?# K( y* @5 H0 c( h5 S
            else if((CurrentT>(AlarmTempTop*10)))
4 @# U: p+ A+ r9 ~             {
% W' A0 a9 W# G3 l7 F2 w+ v9 \% s                      while(1)( z7 q. X, d  [& v
                     {  P# K2 d" X  l+ v# L4 B; c
                              BEEP=0;
9 f+ v" U) n/ T; P# ~1 @4 S                               delayms(200);
7 @' i. K( x% a- q1 y                               BEEP=1;
2 B7 n6 b8 a0 B1 Y6 N' l                               delayms(200);
3 D; P( v, ^! [4 m5 v: b                      }) _4 e9 s+ B2 y; u) @
                              + r9 @+ f  q7 I6 E2 f9 V
            }
" O2 R9 g) Z- S3 {0 B3 s& t3 u$ U             else if((CurrentT<(AlarmTempLow*10))||(tflag==1))
. Z, C4 f9 }- w) J- s5 u             {' T3 ~8 {1 U) u0 \7 @5 R
                     while(1)
, Q6 U% z1 X# R+ ?: x7 A                      {
/ r, x- ?) _" c. {; I/ S2 c                               BEEP=0;5 E3 S9 n4 l, C$ n9 h) z
                              delayms(1000);
3 h' M3 H0 {9 [( v) R- d' ]) K                               BEEP=1;
; V2 S# o6 w! _3 L0 j5 ?! V; L                               delayms(1000);
# F/ g& V! O* b/ I5 d. `                      }
" m- |# i5 P/ J, {! V3 a* z             }
* w  w/ o) ^5 c# H" L' ^       }
! ]* {1 M1 |' ~9 {+ {) w+ n/ a& P! q' _  U
}
5 v. K( p9 {8 {  U9 E; _$ m* J. T4 O9 M. M+ r7 V1 ^& a

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2019-1-15 09:30 上传

xuzwg · 发表于 2019-1-15 23:59

不错，学习一下

sunygd · 发表于 2019-1-15 23:59

楼主弄的这个不错

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