Mình giao tiếp SPI giữ con master Atmega64 và con slave Atmega8, khi mô phỏng trên Proteus là chương trình chạy ok k bị lỗi lầm gì hết, nhưng khi e làm mạch thật thì chương trình k chạy đc. Bị lỗi lung tung hết.
Mạch e kết nối thế này: 2 chân nguồn và đất của Master và Slave nối chung với nhau, các chân giao tiếp SPI thì nối như trong lý thuyết.
Chương trình e gửi kèm theo bên dưới.
/************************************************** ***
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
HP InfoTech, Development Tools for Microcontrollers, C Compilers, In-System Programmers
Project :
Version :
Date : 18/07/2012
Author : NeVaDa
Company :
Comments:
Chip type : ATmega8
Program type : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
************************************************** ***/
#include <mega8.h>
#include <delay.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
unsigned char data1;
void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char m,n,l;
m=so/100; // lay fan tram
n=(so-100*m)/10; // lay fan chuc
l=(so-100*m-10*n); // lay hang don vi
lcd_gotoxy(x,y); // ve vi tri x,y
lcd_putchar(m+48); // day ra hang tram, ma ascii
lcd_putchar(n+48); // day ra hang chuc, ma ascii
lcd_putchar(l+48); // day ra hang don vi, ma ascii
}
interrupt [SPI_STC] void spi_isr(void)
{
data1=SPDR;
SPDR=200;
// Place your code here
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port B initialization
// Func7=In Func6=In Func5=In Func4=Out Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=P State4=1 State3=P State2=P State1=T State0=T
PORTB=0xff;
DDRB=0xD3;
// Port C initialization
// Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x00;
// 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
TCCR0=0x00;
TCNT0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 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: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
MCUCR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// USART initialization
// USART disabled
UCSRB=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// SPI initialization
// SPI Type: Slave
// SPI Clock Phase: Cycle Start
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0xC0;
SPSR=0x00;
// Clear the SPI interrupt flag
#asm
in r30,spsr
in r30,spdr
#endasm
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTC Bit 0
// RD - PORTC Bit 1
// EN - PORTC Bit 2
// D4 - PORTC Bit 3
// D5 - PORTC Bit 4
// D6 - PORTC Bit 5
// D7 - PORTD Bit 0
// Characters/line: 16
lcd_init(16);
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("TEST SPI MEGA64");
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
lcd_putnum(data1,7,1);
}
}
////////////Master
/************************************************** ***
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
HP InfoTech, Development Tools for Microcontrollers, C Compilers, In-System Programmers
Project :
Version :
Date : 18/07/2012
Author : NeVaDa
Company :
Comments:
Chip type : ATmega64
Program type : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 1024
************************************************** ***/
#include <mega64.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
// SPI functions
#include <spi.h>
#include <delay.h>
// Declare your global variables here
#define SS1 PORTB.7
// Declare your global variables here
unsigned char du_lieu_nhan,i;
/////////////////////////////////////
void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char m,n,l;
m=so/100; // lay fan tram
n=(so-100*m)/10; // lay fan chuc
l=(so-100*m-10*n); // lay hang don vi
lcd_gotoxy(x,y); // ve vi tri x,y
lcd_putchar(m+48); // day ra hang tram, ma ascii
lcd_putchar(n+48); // day ra hang chuc, ma ascii
lcd_putchar(l+48); // day ra hang don vi, ma ascii
}
/////////////////////////////////////
void spi_truyen(unsigned char du_lieu)
{
SS1=1; delay_us(10);SS1=0;
SPDR=du_lieu;
while( (SPSR & 0x80)==0 );//Cho den khi SPIF set
du_lieu_nhan=SPDR;
SS1=1;
}
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=In Func5=In Func4=In Func3=In Func2=Out Func1=Out Func0=Out
// State7=0 State6=T State5=T State4=T State3=T State2=0 State1=0 State0=0
PORTB=0xff;
DDRB=0x87;
// 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=0x00;
// 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;
// Port E 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
PORTE=0x00;
DDRE=0x00;
// Port F 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
PORTF=0x00;
DDRF=0x00;
// Port G initialization
// Func4=In Func3=In Func2=In Func1=In Func0=In
// State4=T State3=T State2=T State1=T State0=T
PORTG=0x00;
DDRG=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
ASSR=0x00;
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// OC1C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
OCR1CH=0x00;
OCR1CL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// Timer/Counter 3 initialization
// Clock source: System Clock
// Clock value: Timer3 Stopped
// Mode: Normal top=0xFFFF
// OC3A output: Discon.
// OC3B output: Discon.
// OC3C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer3 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR3A=0x00;
TCCR3B=0x00;
TCNT3H=0x00;
TCNT3L=0x00;
ICR3H=0x00;
ICR3L=0x00;
OCR3AH=0x00;
OCR3AL=0x00;
OCR3BH=0x00;
OCR3BL=0x00;
OCR3CH=0x00;
OCR3CL=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
// INT3: Off
// INT4: Off
// INT5: Off
// INT6: Off
// INT7: Off
EICRA=0x00;
EICRB=0x00;
EIMSK=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
ETIMSK=0x00;
// USART0 initialization
// USART0 disabled
UCSR0B=0x00;
// USART1 initialization
// USART1 disabled
UCSR1B=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// SPI initialization
// SPI Type: Master
// SPI Clock Rate: 2000,000 kHz
// SPI Clock Phase: Cycle Start
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0x50;
SPSR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTA Bit 0
// RD - PORTA Bit 1
// EN - PORTA Bit 2
// D4 - PORTA Bit 4
// D5 - PORTA Bit 5
// D6 - PORTA Bit 6
// D7 - PORTA Bit 7
// Characters/line: 16
lcd_init(16);
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("SPI ATMEGA 128");
while (1)
{
// Place your code here
for(i=0;i<=10;i++){
spi_truyen(i);
delay_ms(250);
}
}
}
Mạch e kết nối thế này: 2 chân nguồn và đất của Master và Slave nối chung với nhau, các chân giao tiếp SPI thì nối như trong lý thuyết.
Chương trình e gửi kèm theo bên dưới.
/************************************************** ***
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
HP InfoTech, Development Tools for Microcontrollers, C Compilers, In-System Programmers
Project :
Version :
Date : 18/07/2012
Author : NeVaDa
Company :
Comments:
Chip type : ATmega8
Program type : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
************************************************** ***/
#include <mega8.h>
#include <delay.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
unsigned char data1;
void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char m,n,l;
m=so/100; // lay fan tram
n=(so-100*m)/10; // lay fan chuc
l=(so-100*m-10*n); // lay hang don vi
lcd_gotoxy(x,y); // ve vi tri x,y
lcd_putchar(m+48); // day ra hang tram, ma ascii
lcd_putchar(n+48); // day ra hang chuc, ma ascii
lcd_putchar(l+48); // day ra hang don vi, ma ascii
}
interrupt [SPI_STC] void spi_isr(void)
{
data1=SPDR;
SPDR=200;
// Place your code here
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
// Input/Output Ports initialization
// Port B initialization
// Func7=In Func6=In Func5=In Func4=Out Func3=In Func2=In Func1=In Func0=In
// State7=T State6=T State5=P State4=1 State3=P State2=P State1=T State0=T
PORTB=0xff;
DDRB=0xD3;
// Port C initialization
// Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State6=T State5=T State4=T State3=T State2=T State1=T State0=T
PORTC=0x00;
DDRC=0x00;
// 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
TCCR0=0x00;
TCNT0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 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: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
MCUCR=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
// USART initialization
// USART disabled
UCSRB=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// SPI initialization
// SPI Type: Slave
// SPI Clock Phase: Cycle Start
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0xC0;
SPSR=0x00;
// Clear the SPI interrupt flag
#asm
in r30,spsr
in r30,spdr
#endasm
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTC Bit 0
// RD - PORTC Bit 1
// EN - PORTC Bit 2
// D4 - PORTC Bit 3
// D5 - PORTC Bit 4
// D6 - PORTC Bit 5
// D7 - PORTD Bit 0
// Characters/line: 16
lcd_init(16);
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("TEST SPI MEGA64");
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
lcd_putnum(data1,7,1);
}
}
////////////Master
/************************************************** ***
This program was produced by the
CodeWizardAVR V2.05.0 Professional
Automatic Program Generator
© Copyright 1998-2010 Pavel Haiduc, HP InfoTech s.r.l.
HP InfoTech, Development Tools for Microcontrollers, C Compilers, In-System Programmers
Project :
Version :
Date : 18/07/2012
Author : NeVaDa
Company :
Comments:
Chip type : ATmega64
Program type : Application
AVR Core Clock frequency: 8,000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 1024
************************************************** ***/
#include <mega64.h>
// Alphanumeric LCD Module functions
#include <alcd.h>
// SPI functions
#include <spi.h>
#include <delay.h>
// Declare your global variables here
#define SS1 PORTB.7
// Declare your global variables here
unsigned char du_lieu_nhan,i;
/////////////////////////////////////
void lcd_putnum(unsigned char so,unsigned char x,unsigned char y)
{
unsigned char m,n,l;
m=so/100; // lay fan tram
n=(so-100*m)/10; // lay fan chuc
l=(so-100*m-10*n); // lay hang don vi
lcd_gotoxy(x,y); // ve vi tri x,y
lcd_putchar(m+48); // day ra hang tram, ma ascii
lcd_putchar(n+48); // day ra hang chuc, ma ascii
lcd_putchar(l+48); // day ra hang don vi, ma ascii
}
/////////////////////////////////////
void spi_truyen(unsigned char du_lieu)
{
SS1=1; delay_us(10);SS1=0;
SPDR=du_lieu;
while( (SPSR & 0x80)==0 );//Cho den khi SPIF set
du_lieu_nhan=SPDR;
SS1=1;
}
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=In Func5=In Func4=In Func3=In Func2=Out Func1=Out Func0=Out
// State7=0 State6=T State5=T State4=T State3=T State2=0 State1=0 State0=0
PORTB=0xff;
DDRB=0x87;
// 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=0x00;
// 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;
// Port E 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
PORTE=0x00;
DDRE=0x00;
// Port F 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
PORTF=0x00;
DDRF=0x00;
// Port G initialization
// Func4=In Func3=In Func2=In Func1=In Func0=In
// State4=T State3=T State2=T State1=T State0=T
PORTG=0x00;
DDRG=0x00;
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=0xFF
// OC0 output: Disconnected
ASSR=0x00;
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
// Timer/Counter 1 initialization
// Clock source: System Clock
// Clock value: Timer1 Stopped
// Mode: Normal top=0xFFFF
// OC1A output: Discon.
// OC1B output: Discon.
// OC1C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer1 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
OCR1CH=0x00;
OCR1CL=0x00;
// Timer/Counter 2 initialization
// Clock source: System Clock
// Clock value: Timer2 Stopped
// Mode: Normal top=0xFF
// OC2 output: Disconnected
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
// Timer/Counter 3 initialization
// Clock source: System Clock
// Clock value: Timer3 Stopped
// Mode: Normal top=0xFFFF
// OC3A output: Discon.
// OC3B output: Discon.
// OC3C output: Discon.
// Noise Canceler: Off
// Input Capture on Falling Edge
// Timer3 Overflow Interrupt: Off
// Input Capture Interrupt: Off
// Compare A Match Interrupt: Off
// Compare B Match Interrupt: Off
// Compare C Match Interrupt: Off
TCCR3A=0x00;
TCCR3B=0x00;
TCNT3H=0x00;
TCNT3L=0x00;
ICR3H=0x00;
ICR3L=0x00;
OCR3AH=0x00;
OCR3AL=0x00;
OCR3BH=0x00;
OCR3BL=0x00;
OCR3CH=0x00;
OCR3CL=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// INT2: Off
// INT3: Off
// INT4: Off
// INT5: Off
// INT6: Off
// INT7: Off
EICRA=0x00;
EICRB=0x00;
EIMSK=0x00;
// Timer(s)/Counter(s) Interrupt(s) initialization
TIMSK=0x00;
ETIMSK=0x00;
// USART0 initialization
// USART0 disabled
UCSR0B=0x00;
// USART1 initialization
// USART1 disabled
UCSR1B=0x00;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// ADC initialization
// ADC disabled
ADCSRA=0x00;
// SPI initialization
// SPI Type: Master
// SPI Clock Rate: 2000,000 kHz
// SPI Clock Phase: Cycle Start
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0x50;
SPSR=0x00;
// TWI initialization
// TWI disabled
TWCR=0x00;
// Alphanumeric LCD initialization
// Connections specified in the
// Project|Configure|C Compiler|Libraries|Alphanumeric LCD menu:
// RS - PORTA Bit 0
// RD - PORTA Bit 1
// EN - PORTA Bit 2
// D4 - PORTA Bit 4
// D5 - PORTA Bit 5
// D6 - PORTA Bit 6
// D7 - PORTA Bit 7
// Characters/line: 16
lcd_init(16);
lcd_clear();
lcd_gotoxy(0,0);
lcd_putsf("SPI ATMEGA 128");
while (1)
{
// Place your code here
for(i=0;i<=10;i++){
spi_truyen(i);
delay_ms(250);
}
}
}
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