Type:Logic ICs
Condition:New
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[ Brief description]
A , Size: 25mm long 150mmX wide 122mmX high
Second, the main chip : AT89S52 microcontroller ( or STC89C52)
Third, the working voltage: 24 volts
Four , ten -pin microcontroller standard download interface . ( You can use the parallel port download cable and USB download cable to download )
Five characteristics : 1, with power indicator .
2 , eight optically isolated incoming signals .
3 , eight optically isolated output control relay output
4 , the standard 11.0592M crystal.
5 , with a power-on reset and manual reset.
6 , support AT89SXX family of microcontrollers.
7 , with a power failure , the chip 24C08.
8 , enter eight have LED indication.
9 , the output of eight with a LED indicator .
10 , eight 24V relay control , control equipment.
11 , can be controlled AC 220V / 10A look at the device.
12 , with the serial communication function ( can overriding control ) . Six , a detailed manual
Seven , to provide relevant software
Eight , providing routine and learning materials Enter the section labeled [ description]
Output section labeled [ description]
[ Host Interface ]( Source code )
[ Testing program ]
/ ************************************************* *******************
Xpress Technology
Function: This version supporting test program
Use chip : AT89S52
Crystal : 11.0592MHZ
Baud Rate: 9600
Compiler Environment : Keil
Author : zhangxinchunleo
Website:ourhc.cn
Taobao shop: Xpress Technologyshop36330473.taobao.com
[ Disclaimer ] This procedure is used only for study and reference , please indicate the copyright and author information !
************************************************** ******************* /
/ ************************************************* *******************
SCM and PC using a 9-pin serial port , MAX232 communication baud rate defaults to 9600 .
MCU receives the PC sends a hex code table as follows :
01 , full : PC sends 0xFF; SCM return 0XFF;
02 , all off : PC sends 0X00; SCM return 0X00;
03 , the first road open : PC sends 0x01; SCM return 0X01;
04 , the second road open : PC sends 0x02; SCM return 0X02;
05 , the third road open : PC sends 0x03; SCM return 0X03;
06 , the fourth road open : PC sends 0x04; SCM return 0X04;
07 , the fifth road open : PC sends 0x05; SCM return 0X05;
08 , the sixth road open : PC sends 0x06; SCM return 0X06;
09 , the seventh road open : PC sends 0x07; SCM return 0X07;
10 , the eighth road open : PC sends 0x08; SCM return 0X08;
11 , the first road off : PC sends 0xFE; SCM return 0XFE;
12 , the second road off : PC sends 0xFD; SCM return 0XFD;
13 , the third road off : PC sends 0xFC; SCM return 0XFC;
14 , the fourth way off : PC sends 0xFB; SCM return 0XFB;
15 , the fifth way off : PC sends 0xFA; SCM return 0XFA;
16 , Sixth Road, Off : PC sends 0xF9; SCM return 0XF9;
17 , the seventh road off : PC sends 0xF8; SCM return 0XF8;
18 , the eighth road off : PC sends 0xF7; SCM return 0XF7;
19 , input status query : PC sends 0x55; SCM returns the output state ( return value in hexadecimal ) ;
20 , the output status query : PC send 0xAA; SCM returns the output state ( return value in hexadecimal ) ;
21 , the output negated instruction : PC sends 0X11; SCM return 0x11;
************************************************** ******************* /
#include
#define uchar unsigned char // macro definition unsigned char
#define uint unsigned int // macro definition unsigned integer
/ ************************************************* *******************
The initial definition
************************************************** ******************* /
uchar sj; // storing data values
bit write = 0; // write 24C08 logo ;
uchar dat = 0xee; // for storing MCU receives the transmit buffer register SBUF contents inside
/ * Define eight out of the microcontroller P2 port * /
sbit K1 = P2 ^ 0;
sbit K2 = P2 ^ 1;
sbit K3 = P2 ^ 2;
sbit K4 = P2 ^ 3;
sbit K5 = P2 ^ 4;
sbit K6 = P2 ^ 5;
sbit K7 = P2 ^ 6;
sbit K8 = P2 ^ 7;
/ * Define eight into the microcontroller P1 port * /
sbit IN0 = P1 ^ 0;
sbit IN1 = P1 ^ 1;
sbit IN2 = P1 ^ 2;
sbit IN3 = P1 ^ 3;
sbit IN4 = P1 ^ 4;
sbit IN5 = P1 ^ 5;
sbit IN6 = P1 ^ 6;
sbit IN7 = P1 ^ 7;
/ ************************************************* *******************
24C08 read and write driver
************************************************** ******************* /
sbit scl = P3 ^ 6; // 24c08 SCL
sbit sda = P3 ^ 7; // 24c08 SDA
void delay1 (uchar x)
{
uint i;
for (i = 0; i
;
}
void flash (){;;}
void x24c08_init () // 24c08 initialization routine
{
scl = 1;
flash ();
sda = 1;
flash ();
}
void start () // start (I square C) bus
{
sda = 1; flash (); scl = 1; flash (); sda = 0; flash (); scl = 0; flash ();
}
void stop () // stop (I square C) bus
{
sda = 0; flash (); scl = 1; flash (); sda = 1; flash ();
}
void writex (uchar j) // write a byte
{
uchar i, temp;
temp = j;
for (i = 0; i <8; i ++)
{
temp = temp << 1; scl = 0; flash (); sda = CY; flash (); scl = 1; flash ();
}
scl = 0; flash (); sda = 1; flash ();
}
uchar readx () // read a byte
{
uchar i, j, k = 0;
scl = 0; flash (); sda = 1;
for (i = 0; i <8; i ++)
{
flash (); scl = 1; flash ();
if (sda == 1) j = 1;
else j = 0;
k = (k << 1) | j;
scl = 0;}
flash (); return (k);
}
void clock () // (I square C) line clock
{
unsigned char i = 0;
scl = 1; flash ();
while ((sda == 1) && (i <255)) i ++;
scl = 0; flash ();
}
/ ************************************************* *******************
Reads a byte of data from the address address in 24c08
************************************************** ******************* /
unsigned char x24c08_read (unsigned char address)
{
unsigned char i;
start (); writex (0xa0);
clock (); writex (address);
clock (); start ();
writex (0xa1); clock ();
i = readx (); stop ();
delay1 (10);
return (i);
}
/ ************************************************* *******************
Writes a byte of data to the address address 24c08
************************************************** ******************* /
void x24c08_write (unsigned char address, unsigned char info)
{
EA = 0;
start (); writex (0xa0);
clock (); writex (address);
clock (); writex (info);
clock (); stop ();
EA = 1;
delay1 (50);
}
/ ************************************************* *******************
Delay function
************************************************** ******************* /
void delay (uchar t)
{
uchar i, j;
for (i = 0; i
{
for (j = 13; j> 0; j--);
{ ;
}
}
}
/ ************************************************* *******************
Function : serial port initialization , baud rate 9600, the way a
************************************************** ******************* /
void Init_Com (void)
{
TMOD = 0x20;
PCON = 0x00;
SCON = 0x50;
TH1 = 0xFd;
TL1 = 0xFd;
TR1 = 1;
}
/ ************************************************* *******************
Receiving data judging function
************************************************** ******************* /
chuankou ()
{
switch (dat) // receive data to judge
{
uchar k;
k = 10;
case 0xff: P2 = 0X00; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // full
case 0x00: P2 = 0XFF; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // fully closed
case 0x01: K1 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // first road open
case 0x02: K2 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // second road open
case 0x03: K3 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // third road open
case 0x04: K4 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // fourth road open
case 0x05: K5 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // fifth road open
case 0x06: K6 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // sixth road open
case 0x07: K7 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // seventh road open
case 0x08: K8 = 0; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // eighth road open
case 0xFE: K1 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; road // first hurdle
case 0xFD: K2 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; road // second hurdle
case 0xFC: K3 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // third road off
case 0xFB: K4 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; fourth off road
case 0xFA: K5 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // fifth Lu Guan
case 0xF9: K6 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // sixth Lu Guan
case 0xF8: K7 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; seventh off road
case 0xF7: K8 = 1; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // eighth off road
case 0x55: SBUF = P1; delay (k); dat = 0xee; break; // read input status
case 0xAA: SBUF = P2; delay (k); dat = 0xee; write = 1; break; // read output port status
case 0x11: P2 = ~ P2; delay (k); SBUF = dat; dat = 0xee; write = 1; break; // output negated
default: break; // out
}
}
/ ************************************************* *******************
The main function
************************************************** ******************* /
void main ()
{
Init_Com (); // serial port initialization
x24c08_init (); // initialization 24C08
sj = x24c08_read (2); // read out the data stored confers dat
P2 = sj; // stored data given P2 mouth
while (1)
{
chuankou (); // receive data to determine the function
if (RI) // determines whether the received scan data ,
{
dat = SBUF; // receiving data SBUF endowed with dat
RI = 0; // RI cleared.
}
if (write == 1) // determine whether the timer counting one second
{
write = 0; // cleared
sj = P2; // given value P2 port dat
x24c08_write (2, sj); // 2 dat write data in 24c08 address
}
}
}
/ ************************************************* *******************
End
************************************************** ******************* /
Function:
- Host computer ( the computer ) for relay control , send a different code , control the corresponding relay ( see program for details ) .
- A power failure , that is , the power, and then restore power , before the relay output off state .
[ Photo Gallery ]
/*************************************/
Shipping list
1,24V eight relay industrial control panels with power storage 1 ( the default shipping chips STC89C52RC)
2 ,Relevant data CD 1
/*************************************/
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