maia31
Member level 1
hi
i want recive data from pc
i use spi
and my micro is slave
i write this program but it dosent run.
can you say me why
?
spi intruppt dosent work
why?
i want recive data from pc
i use spi
and my micro is slave
i write this program but it dosent run.
can you say me why
?
spi intruppt dosent work
why?
Code:
**********************************************
This program was produced by the
CodeWizardAVR V1.25.9 Standard
Automatic Program Generator
© Copyright 1998-2008 Pavel Haiduc, HP InfoTech s.r.l.
[url=http://www.hpinfotech.com]HP InfoTech, Development Tools for Microcontrollers, C Compilers, In-System Programmers[/url]
Project :
Version :
Date : 2011/10/03
Author : F4CG
Company : F4CG
Comments:
Chip type : ATmega32
Program type : Application
Clock frequency : 1.000000 MHz
Memory model : Small
External SRAM size : 0
Data Stack size : 512
*****************************************************/
#include <mega32.h>
#include <spi.h>
#include <delay.h>
#include <stdio.h>
interrupt [SPI_STC] void spi_isr(void)
{
#asm("cli"); // Global disable interrupts
if(SPDR ==5)
PORTD= PORTD|8;
else
PORTD= PORTD&247;
#asm("sei"); // Global enable interrupts
}
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=In Func6=Out Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In
// State7=T State6=0 State5=T State4=T State3=T State2=T State1=T State0=T
PORTB=0x00;
DDRB=0x40;
// 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=Out Func4=Out Func3=Out Func2=Out Func1=Out Func0=Out
// State7=T State6=T State5=0 State4=0 State3=0 State2=0 State1=0 State0=0
PORTD=0x00;
DDRD=0x3f;
// 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: CTC top=OCR1A
// 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: On
// Compare B Match Interrupt: Off
TCCR1A=0x00;
TCCR1B=0x01;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x13;
OCR1AL=0x88;
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=0x10;
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
SFIOR=0x00;
// SPI initialization
// SPI Type: Slave
// SPI Clock Rate: 15.625 kHz
// SPI Clock Phase: Cycle Half
// SPI Clock Polarity: Low
// SPI Data Order: MSB First
SPCR=0xC2;
SPSR=0x00;
// Clear the SPI interrupt flag
#asm
in r30,spsr
in r30,spdr
#endasm
// Global enable interrupts
#asm("sei")
while (1)
{
};
}
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