Dibawah ini merupakan rangkaian tampilan 4 digit 7Segment yang saya buat di PCB dengan menggunakan bantuan Protel Altium 2004, tentunya dengan teknik yang sederhana yaitu teknik sablon ala Setrika Ibuku...
/*****************************************************
Project :
Version :
Date : 10/16/2009
Author : Musafir86
Company : Musafir86
Comments:
Chip type : ATmega8535
Program type : Application
Clock frequency : 11.059200 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 128
*****************************************************/
#include
#include
// Declare your global variables here
void tampil_7segmen(void);
void hextobcd (unsigned int data);
unsigned int data=0;
unsigned char satuan,puluhan, ratusan, ribuan=0;
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port A initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTA=0x00;
DDRA=0x00;
// Port B initialization
// Func7=Out Func6=Out Func5=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTB=0xFF;
DDRB=0xFF;
// Port C initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0xFF;
// Port D initialization
// Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTD=0x00;
DDRD=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0 output: Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer 1 Stopped
// Mode: Normal top=FFFFh
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer 1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer 2 Stopped
// Mode: Normal top=FFh
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
MCUCR=0x00;
MCUCSR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
while (1)
{
// Place your code here
data=PINA;
hextobcd(data);
tampil_7segmen ();
};
}
void tampil_7segmen (void)
{
ribuan|=0x70;
PORTC=ribuan;
delay_us(500);
ratusan|=0xB0;
PORTC=ratusan;
delay_us(500);
puluhan|=0xD0;
PORTC=puluhan;
delay_us(500);
satuan|=0xE0;
PORTC=satuan;
delay_us(500);
}
void hextobcd(unsigned int data)
{
satuan=data%10;
data/=10;
puluhan=data%10;
data/=10;
ratusan=data%10;
data/=10;
ribuan=data%10;
}
Nah, Listing program yang diatas merupakan coding untuk menyalakan display 7Segment 4 digit, yang mana data masukan berasal dari PORTA dan PORTc terhubung dengan rangkaian display 7Segment. pada font yang berwarna merah merupakan coding yang harus anda modif dan tambahkan di listing program anda. Nah sampai disini sudah paham bukan, pasti bisa dan selamat mencoba. Mari kita sharing bersama.