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标题: 一些实用的单片机c程序 [打印本页]

作者: m1_ljp 时间: 2013-4-16 13:31 标题: 一些实用的单片机c程序

//DS1302 RTC drive program
B]-LI M]z42766//for 51 mcu with LCD1602 display
m-c E5j:av?&Z42766//designed by zhaoliang电子园51单片机学习网^#T xDc` \$`
//2005-6-16 18:30
@.QoU"s0g9?3b N42766＃i nclude <reg51.h>电子园51单片机学习网w{Y5k _
＃i nclude <intrins.h>电子园51单片机学习网(?FT!~K!Q ^E b电子园51单片机学习网%JX+q7o9^
//lcd part电子园51单片机学习网j;Q KY-},w
/***********************************************************************/
#F-GxpK:s#I%Wv9T42766#define  LINE1    0电子园51单片机学习网)yd/{ @4}(b;V
#define  LINE2    1
Q [h?v0qg5h2uD?42766#define  LINE1_HEAD 0x80
5T)HZMH.q3~s5|42766#define  LINE2_HEAD 0xC0电子园51单片机学习网b3[%AB-z8]ov,z
#define  LCD_DELAY_TIME 40
+]2Fm*o9F{#|Dy42766#define  DATA_MODE 0x38电子园51单片机学习网7w+U8uB"R R4c&u&l7EW ^_
#define  OPEN_SCREEN 0x0C电子园51单片机学习网z$C!{-N;_:gkk
#define  DISPLAY_ADDRESS 0x80
O"Uc cH GZ42766#define  CLEARSCREEN LCD_en_command(0x01)电子园51单片机学习网(k\S8?+Y8e`3\0EP
// common PreDefinition
Q!x+^H-`'Z1U42766#define  HIGH    1电子园51单片机学习网w _K2gq8l8A#@K
#define  LOW    0
`I@^E [&V%f1b42766#define  TRUE    1电子园51单片机学习网TG`

S.P#j
#define  ZERO    0电子园51单片机学习网f@Q8e*d!Ux S!s O5K2T
#define  MSB    0x80
H!?0Zg%rJZ!A42766#define  LSB    0x01
(W,}U*s5V@,Va-Q42766// ds1302 PreDefinition电子园51单片机学习网Z }g q0J'G"f2i
#define  DS1302_WP 0x8E
6@c2}mZ `42766#define  DS1302_RESET RST="LOW";SCL=LOW;RST=HIGH电子园51单片机学习网.@(Mm/?qh*K
#define  DS1302_WP_ENABLE  Write_Ds1302(DS1302_WP,0X00)电子园51单片机学习网%\:x3n*n4}5L
#define  DS1302_WP_DISENABLE  Write_Ds1302(DS1302_WP,0x80)电子园51单片机学习网$Rm*_!`t:O4QO4YUE

h/o+F_l yU42766/***********************************************************************/
$x.?k;]2CF `B42766#define  LCDIO    P2电子园51单片机学习网9RYvEp8a
sbit LCD1602_RS=P0^7; //data command select  1 data  0 command  pin 4电子园51单片机学习网i;iex[T{7n
sbit LCD1602_RW=P0^6; //read write select 1 read 0 write    pin 5
?q'ic[Z*Lc42766sbit LCD1602_EN=P0^5; //LCD enable signal          pin 6
;^#S(Ylq9{5o'q42766电子园51单片机学习网4PqY`z?#EN_%l.C
sbit SCL = P1^6;// DS1302 Serial-Clock Input  pin 7电子园51单片机学习网(| gY]G1g];d$zE
sbit SDA = P1^7;// DS1302 Serial-Data  Input  pin 6
I9i(?Cy42766sbit RST = P1^4;// DS1302 Chip-Seclet  Input  pin 5
m?c6I*o)H$W4m)U42766/***********************************************************************/
`J&b5vvFD/W3q4x42766void LCD_delay(void);//lcd delay function
X K1c[S!x42766void LCD_en_command(unsigned char command);//write command function
;{sz Q^i42766void LCD_en_dat(unsigned char temp);//write data function电子园51单片机学习网A`8}c \;U#` h;j
void LCD_set_xy( unsigned char x, unsigned char y );//set display address function
Qun6c O b5Z"H#Y42766void LCD_write_char( unsigned x,unsigned char y,unsigned char dat);//write lcd a character function电子园51单片机学习网Xz4x5J ^\"V
void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s);//write lcd string function
"Kn pH#h&_42766void LCD_init(void);//lcd initize function
"?"d9gqh42766电子园51单片机学习网f nM't*dWr:^7iR
void Write_Ds1302_byte(unsigned char temp);电子园51单片机学习网F:OYfO \mS
void Write_Ds1302( unsigned char address,unsigned char dat );电子园51单片机学习网 P;Q+u.Tx ChQ.Y
unsigned char Read_Ds1302 ( unsigned char address );电子园51单片机学习网-yB1Uq-yp3G"Q

^0v Sa(\wX42766void Read_RTC(void);//read RTC电子园51单片机学习网"r8m;Kwm R
void Set_RTC(void);//set RTC
`Av^&o7K42766
y-iFZg[^7hq(v42766void Initial(void);//system initize function
1_Zf+Jc"y5tC42766void Display(void);//RTC display function
Z&q0u$q?/x#_i42766电子园51单片机学习网,i^vW8[%y E
/***********************************************************************/电子园51单片机学习网G[H j&N]2br5@
code unsigned char set_rtc_code[7]={0x00,0x30,0x18,0x04,0x16,0x06,0x05};电子园51单片机学习网[w T-~2V ~
code unsigned char write_rtc_address[7]={0x80,0x82,0x84,0x86,0x88,0x8a,0x8c};电子园51单片机学习网4W5J;KwV2gS1L^
code unsigned char read_rtc_address[7]={0x81,0x83,0x85,0x87,0x89,0x8b,0x8d};电子园51单片机学习网C^'U;IBq-l
code unsigned char *day[7]={"Mon","Tue","Wen","Thu","Fri","Sat","Sun"};电子园51单片机学习网` tB v)KUS
unsigned char read_rtc_code[7];
0Z&I6`s/x42766电子园51单片机学习网1s/Bg @+\Z
/***********************************************************************/电子园51单片机学习网j5s wD;j

0Sl*y)T#A1X%X$c42766电子园51单片机学习网7R ?0y isWl(}i
/***********************************************************************/电子园51单片机学习网4|9h*}]5CX8}6q4Y
/***********************************************************************/电子园51单片机学习网 Dy"M'f ?9rC$_
void main(void)电子园51单片机学习网0o|Mo2Gk autC
{
|1B+LVH _+J42766 Initial();电子园51单片机学习网"p:Nw?*z_ HR
while(1)电子园51单片机学习网-S!pRq4q#}gp(\f
{ 电子园51单片机学习网]"n"o_ s9O\
  Read_RTC();电子园51单片机学习网*W!ikrvCj9q1J%Y8w
  Display();
GY)ZHD"\"U)h42766 }电子园51单片机学习网!^`FsV2A"J
}电子园51单片机学习网)j6?q`up"^ dP-m

!xBt%q2i1y42766/****************************************************************************/
]M JB0Bs)F42766/****************************************************************************/电子园51单片机学习网|6?{-p0_1v i/qp3W
void Initial(void)
.NrVyF W't42766{电子园51单片机学习网9o4Z,M ~ }Q
LCD_init();
:dRQc v42766 DS1302_WP_ENABLE;
;U @%V4xoaZ42766 Set_RTC();电子园51单片机学习网?_v0}]z
DS1302_WP_DISENABLE;电子园51单片机学习网4x$]T)KU7x
}
@NrL.]+RH4K42766/****************************************************************************/
y!l-Wp2}42766电子园51单片机学习网4M a2W&q%})SZ gI
/****************************************************************************/
z&j/s z*w.m C42766/****************************************************************************/电子园51单片机学习网+|v%d||n)v
void Write_Ds1302_Byte(unsigned  char temp)
v G/M7W"X,r O1|?42766{
f*N+BG,@(|b42766 unsigned char i;
~5CO5AMF8w;v42766 for (i=0;i<8;i++) 电子园51单片机学习网W$NX0a D7}
  {电子园51单片机学习网 RD:l/EO5g!U9z{
SCL="LOW";电子园51单片机学习网X&T,B{fs'r\N4^6Q
   SDA="temp"&LSB;    电子园51单片机学习网O3e6T%P(FZ$V^"y3T
   temp>>=1;
0Z%vf~5@_z Q9E4O42766    SCL="HIGH";
E E*~;LCB-LT42766 }电子园51单片机学习网2bNP@9kP%bF$]
}  电子园51单片机学习网(I0Ek2J&]wF
/****************************************************************************/
%@8swe i42766void Write_Ds1302( unsigned char address,unsigned char dat )
i;zRm,O\#Uc42766{电子园51单片机学习网 O"^G+d.d9A,QY6jXc
DS1302_RESET;
5yc7?\nf42766 Write_Ds1302_Byte(address);电子园51单片机学习网 U)s)fh~
Write_Ds1302_Byte(dat);电子园51单片机学习网V#]Qs6P;uHL
RST=LOW; 电子园51单片机学习网7t#i3t @.o;]4P#R2Ru
}电子园51单片机学习网S.IiE7e#zBR B
/****************************************************************************/
2Y;u ~1C\I#VU42766unsigned char Read_Ds1302 ( unsigned char address )
]!I0c/xf\ u:J$a gr42766{电子园51单片机学习网j"J0K_*E0t8f
unsigned char i,temp=0x00,temp_temp;
DV^ t,I9s42766 DS1302_RESET;电子园51单片机学习网Av3O;oG'aC|
Write_Ds1302_Byte(address);
w9^Z}&zeE\42766 for (i=0;i<8;i++)电子园51单片机学习网"E VEZ I\Sb
{电子园51单片机学习网8`.hL%hl$E
  if(SDA)
]uy?sZ%R|U}42766 temp|=0x80;
DC:[f2d5{ Y1S#zs42766  SCL="LOW";电子园51单片机学习网;l4Bq6GGft y7y
temp>>=1;
1e}7A`,\:uS y42766  SCL="HIGH";电子园51单片机学习网s&` `$QB
}电子园51单片机学习网)U"x%E/Z2@7b
RST=LOW;
PM4Tey8AoB5} T42766 temp_temp=temp/16;电子园51单片机学习网)c3Zsc|$_[`2~
temp=temp%16;电子园51单片机学习网$^clb h@
temp=temp+temp_temp*10;电子园51单片机学习网&G,}g ] Pr6a TpL
return (temp);电子园51单片机学习网

4lHN#S
}
&]}:a+Fu9g4p42766/****************************************************************************/
JchZ*ra#hc7W\42766void Read_RTC(void)电子园51单片机学习网 ZgWjLo3l9iM,V4NV
{
H~~q K8g42766 unsigned char i,*p;
K%^!p G]42766 p=read_rtc_address;
SH C)QG42766 for(i=0;i<7;i++)
/t~f0B_7o!EOzq42766 {电子园51单片机学习网7A;L/D3Y;y
  read_rtc_code=Read_Ds1302(*p);
sa8T-|(qjO42766  p++;
/N W0x,H@;H;x9Q42766 }
~b:m8}t {&h `\42766}
"f QL0`J V2SHY42766/***********************************************************************/电子园51单片机学习网sn_%r [W
void Set_RTC(void)电子园51单片机学习网8I5V?b/uO
{
&V0zd+ra42766 unsigned char i,*p;电子园51单片机学习网 C Z&g#y7L}%rb
p=write_rtc_address;
s} y u R W!d't"m1p x42766 for(i=0;i<7;i++)
g n9{_"R6YxVt3N42766 {电子园51单片机学习网n3bw jNBd#h
  Write_Ds1302(*p,set_rtc_code);电子园51单片机学习网Q-`4W1BOs
  p++; 电子园51单片机学习网nZ@%XkXd z
}
!I+~C6G6oFwW42766} 电子园51单片机学习网:de%l Fk$Dr!B{&E

(D O!p#xn42766/***********************************************************************/电子园51单片机学习网YC#J4Lw-Uf'deko
/******************** LCD PART START *******************************/
q4L/wFy Su42766void LCD_delay(void)
'X/A+NH;m\EPM \42766{
W/JE.n%k Ai42766 unsigned char i;电子园51单片机学习网 tXenB4h^k
for(i=LCD_DELAY_TIME;i>ZERO;i--);
gg']Xx&y:H-Q42766}电子园51单片机学习网!~5U9\ s^C ?
/********************************************************************/
}j+jv Hzz4bk3o[42766void LCD_en_command(unsigned char command)
-c,c5U}"I%|42766{
8K!m)gF Xu0fe:v42766 LCDIO=command;电子园51单片机学习网2|1T~/[7Y?.B,p
LCD1602_RS=LOW;  电子园51单片机学习网-bUT~7fu!h
LCD1602_RW=LOW;
1O L8YOn,gg J-\V"u42766 LCD1602_EN=LOW;
}oY/Zn42766 LCD_delay();电子园51单片机学习网#{3P1v&Z"bse
LCD1602_EN=HIGH;电子园51单片机学习网,w I@"Uss)?
}电子园51单片机学习网)_3];g6ks v\f ^[
/********************************************************************/电子园51单片机学习网7T5}t%]c'lq
void LCD_en_dat(unsigned char dat)电子园51单片机学习网9e*^:p}3w G8t0_Pb
{电子园51单片机学习网.@ Qsc%CTc0rE
LCDIO=dat;电子园51单片机学习网x9ml~/A:k
LCD1602_RS=HIGH;电子园51单片机学习网0S"n vwa#h8xp
LCD1602_RW=LOW;
NR|d7`4tX4~M42766 LCD1602_EN=LOW;电子园51单片机学习网7u\y K t E
LCD_delay();电子园51单片机学习网M+Ph ip
LCD1602_EN=HIGH;
/[0n;^q&~42766}
Tp)OfJ+E_6~,L'C42766/********************************************************************/
*P*` C/eN.tia{42766void LCD_set_xy( unsigned char x, unsigned char y )电子园51单片机学习网*A/~ S7aYA r3hi E
{电子园51单片机学习网[Z| aM2B
unsigned char address;电子园51单片机学习网Yj^0_7[C.`hH
if (y == LINE1)电子园51单片机学习网2zawi ?pwJS
  address = LINE1_HEAD + x;电子园51单片机学习网#z*WgYs'~
else
0{zeDy5fe42766    address = LINE2_HEAD + x;电子园51单片机学习网8r h5`z V$X"a y3u^
LCD_en_command(address);
P Tq"F2m%yq42766}
u;Z+T/{(ab*[2[R&sl3X6j42766/********************************************************************/
T} GbM$u`42766void LCD_write_char( unsigned x,unsigned char y,unsigned char dat)电子园51单片机学习网"|ft\W$_/eG
{电子园51单片机学习网-smSf_0X3GZ,z!XM
LCD_set_xy( x, y );电子园51单片机学习网.w(l_r:qB d}Y]
LCD_en_dat(dat);电子园51单片机学习网LDM:\ r*@)C
}
x:uCEa.uuVE42766/********************************************************************/电子园51单片机学习网1^PS!@,F+A R
void LCD_write_string(unsigned char X,unsigned char Y,unsigned char *s)电子园51单片机学习网.H"Q-W5Ck6\)U(@.Z]cV
{电子园51单片机学习网 w/XoT`l5oQ
LCD_set_xy( X, Y ); //set address电子园51单片机学习网_^5Oj|[0~
while (*s)  // write character电子园51单片机学习网E8e4rnz(m e
{电子园51单片机学习网sk{0B d4e#l
   LCDIO=*s;电子园51单片机学习网G'RO5A#zC
      LCD_en_dat(*s);  电子园51单片机学习网6I5Ak ] j9fEF
s ++;电子园51单片机学习网L @4re{
}电子园51单片机学习网X^h:?"m+t s.`
}电子园51单片机学习网+|3gl S/M1}#~
/********************************************************************/
*wg9\/o(@s7ou,M42766void LCD_init(void)
dxXW3u'vh42766{电子园51单片机学习网(e2hXI4o4y
CLEARSCREEN;//clear screen
(b5E%^lQw2R9D B42766 LCD_en_command(DATA_MODE);//set 8 bit data transmission mode
7I/sX+`a$M1j7[U42766 LCD_en_command(OPEN_SCREEN);//open display (enable lcd display)电子园51单片机学习网Djb_8z/O
LCD_en_command(DISPLAY_ADDRESS);//set lcd first display address
D^;U!c4V42766 CLEARSCREEN;//clear screen
b!MrM on1uB3T42766}
{Au$vDrn42766/******************** LCD PART STOP *******************************/电子园51单片机学习网(D'kSg6B+c
/********************************************************************/
t5S V%K8N9S-O42766/********************  OTHER PART ******************************/电子园51单片机学习网1~L,n#hr7Oe:m:N
void Display(void)    电子园51单片机学习网|2M!w5T6Tw
{电子园51单片机学习网)f1Pt\ B"l%^
LCD_write_char(0x0f,LINE2,(read_rtc_code[0]%10)|0x30);
zm'w? ~$M R0@42766 LCD_write_char(0x0e,LINE2,(read_rtc_code[0]/10)|0x30);
@0C0NZW/}E42766 LCD_write_char(0x0c,LINE2,(read_rtc_code[1]%10)|0x30);电子园51单片机学习网3}-i[ \(hM!P ? m6]
LCD_write_char(0x0b,LINE2,(read_rtc_code[1]/10)|0x30);电子园51单片机学习网 D lu+O5{\ r~ J']
LCD_write_char(0x09,LINE2,(read_rtc_code[2]%10)|0x30);
g%O&j? k;V9@42766 LCD_write_char(0x08,LINE2,(read_rtc_code[2]/10)|0x30);
J2wB6{p-YyXKm42766 LCD_write_char(0x09,LINE1,(read_rtc_code[4]%10)|0x30);电子园51单片机学习网V8Z Nw |
LCD_write_char(0x08,LINE1,(read_rtc_code[4]/10)|0x30);电子园51单片机学习网nf1dH#Te x L
LCD_write_char(0x06,LINE1,(read_rtc_code[5]%10)|0x30);
XM$gE/N*D$CW42766 LCD_write_char(0x05,LINE1,(read_rtc_code[5]/10)|0x30);
$i;q8{:u,|i42766 LCD_write_char(0x03,LINE1,(read_rtc_code[6]%10)|0x30);电子园51单片机学习网}V+P+[pBj
LCD_write_char(0x02,LINE1,(read_rtc_code[6]/10)|0x30);电子园51单片机学习网%rw'D p7^0|Q

'c yqmw_^DL g42766 LCD_write_string(0x0d,LINE1,day[read_rtc_code[3]-1]);
Z+\w6p~}.L8bs&wO42766 LCD_write_string(0x0d,LINE2,":");
}l%z [D6]my2yV8g'}*Z42766 LCD_write_string(0x0a,LINE2,":");电子园51单片机学习网IGx2t0h7pC1RV
LCD_write_string(0x07,LINE1,"-");
a xpB9ju42766 LCD_write_string(0x04,LINE1,"-");
q n~Qv42766 LCD_write_string(0x00,LINE1,"20");电子园51单片机学习网7OMVl!p5{/k
}
J2y:x Ah-Ywa2dSO42766

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