bagusdj
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hey guys . im trying to make a simple program for phase angle control using triac. so far it is successfully decreasing the voltage delivered to load.
here is the code
for the code above, value is the reading of adc that written to lcd. i can not test this code yet since i dont know what the "value" should be. (for this moment i just name it value).
here is the code of ADC+LCD. can you guys help me,what should i replace "value" with?
here is the code
Code:
#include<reg52.h>
sbit triac=P3^0;
void cct_init(void);
void initint0(void);
void firing(void);
void delay(unsigned int count)
{
unsigned int i;
while(count) {
i = 115;
while(i>0) i--;
count--;
}}
void cct_init(void)
{
P3=0x05; //triac is on when active low
}
void initINT0(void)
{
IT0=1;
EX0=1;
EA=1;
}
void firing(void)
{
if(value>10 & value>=20) //1st condition
{triac=1;
delay(5);
triac=0;
delay(1);
triac=1;
EA=0;
EA=1;}
else if(value>20 & value>=30) //2nd condition
{triac=1;
delay(4);
triac=0;
delay(1);
triac=1;
EA=0;
EA=1;}
else if(value>30 & value>=40) //3rd condition
{triac=1;
delay(3);
triac=0;
delay(1);
triac=1;
EA=0;
EA=1;}
else if(value>40 & value>=50) //4th condition
{triac=1;
delay(2);
triac=0;
delay(1);
triac=1;
EA=0;
EA=1;}
else if(value>50) //5th condition; full power
{triac=0;
EA=0;
EA=1;}
else
{triac=1; //6th condition; triac not firing at all
EA=0;
EA=1;}
}
void external0_isr(void) interrupt 0
{
firing();
}
void main(void)
{
cct_init();
initINT0();
}for the code above, value is the reading of adc that written to lcd. i can not test this code yet since i dont know what the "value" should be. (for this moment i just name it value).
here is the code of ADC+LCD. can you guys help me,what should i replace "value" with?
Code:
// Program to interface TGS2600 using ADC 0809. The output of TGS2600 is displayed on LCD. Controller interrupt is used to generate the clock for driving ADC 0808.
#include<reg52.h>
sbit ale=P1^0; //address latch enable
sbit oe=P1^3; //output enable
sbit sc=P1^1; //start conversion
sbit eoc=P1^2; //end of conversion
sbit clk=P1^7; // clock
sbit ADD_A=P1^4; // Address pins for selecting input channels.
sbit ADD_B=P1^5;
sbit ADD_C=P1^6;
sfr lcd_data_pin=0xA0; //P2 port
sbit rs=P3^7;
sbit rw=P3^1;
sbit en=P3^6;
sbit triac=P3^0;
sfr input_port=0x80; //P0 port
unsigned int bitvalue,decimal_value,key,left_value,value,number,ascii1,ascii2,ascii3,flag,key1;
void timer0() interrupt 1 // Function to generate clock of frequency 500KHZ using Timer 0 interrupt.
{
clk=~clk;
}
void delay(unsigned int count)
{
unsigned int i;
while(count) {
i = 115;
while(i>0) i--;
count--;
}}
void lcd_command(unsigned char comm) //Function to send command to LCD.
{
lcd_data_pin=comm;
en=1;
rs=0;
rw=0;
delay(10);
en=0;
}
void lcd_data(unsigned char disp) //Function to send data to LCD.
{
lcd_data_pin=disp;
en=1;
rs=1;
rw=0;
delay(10);
en=0;
}
lcd_dataa(unsigned char *disp) //Function to send string data to LCD.
{
int x;
for(x=0;disp[x]!=0;x++)
{
lcd_data(disp[x]);
}
}
void lcd_ini() //Function to inisialize the LCD
{
lcd_command(0x38);
delay(5);
lcd_command(0x0E);
delay(5);
lcd_command(0x80); //Force cursor to blink at line 1 positon 0
delay(5);
}
void BCD() // Binary to decimal conversion to send the data to LCD
{
key1++;
key=0;
flag=0;
number=input_port;
number= number*39;
number= number/100;
value=number%10;
number=number/10;
ascii1=value+48;
if(number!=0)
{
value=number%10;
number=number/10;
ascii2=value+48;
flag=1;
}
else
{
ascii2=48;
flag=1;
}
if(number!=0)
{
value=number%10;
number=number/10;
ascii3=value+48;
key=2;
}
else
{
ascii3=48;
key=2;
}
if(key==2)
lcd_data(ascii3);
if(flag==1)
lcd_data(ascii2);
lcd_data(ascii1);
if(key1==3)
{
key1=0;
ascii3=0;
ascii2=0;
ascii1=0;
delay(10);
}
}
void adc() //Function to drive ADC
{
while(1)
{
ADD_C=0; // Selecting input channel 2 using address lines
ADD_B=0;
ADD_A=1;
delay(2);
ale=1;
delay(2);
sc=1;
delay(1);
ale=0;
delay(1);
sc=0;
while(eoc==1);
while(eoc==0);
oe=1;
BCD();
lcd_command(0x88);
delay(2);
oe=0;
}
}
void main()
{
eoc=1;
ale=0;
oe=0;
sc=0;
key1=0;
TMOD=0x02; //timer0 setting for generating clock of 500KHz using interrupt enable mode.
TH0=0xFD;
IE=0x82;
TR0=1;
lcd_ini();
lcd_dataa("PPM : ");
lcd_command(0x88);
adc();
}
