minid_20050711

平缝机的单片机伺服控制系统源代码。本程序为用单片机控制永磁同步电机的低成本方案

//ICC-AVR application builder : 2005-7-11 14:38:07
// Target : M48
// Crystal: 8.0000Mhz

#include <iom48v.h>
#include <macros.h>

void port_init(void)
{
 PORTB = 0x00;
 DDRB  = 0x00;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0x00;
 DDRD  = 0x00;
}

//TIMER1 initialize - prescale:1
// WGM: 0) Normal, TOP=0xFFFF
// desired value: 1Hz
// actual value: Out of range
void timer1_init(void)
{
 TCCR1B = 0x00; //stop
 TCNT1H = 0x00 /*INVALID SETTING*/; //setup
 TCNT1L = 0x00 /*INVALID SETTING*/;
 OCR1AH = 0x00 /*INVALID SETTING*/;
 OCR1AL = 0x00 /*INVALID SETTING*/;
 OCR1BH = 0x00 /*INVALID SETTING*/;
 OCR1BL = 0x00 /*INVALID SETTING*/;
 ICR1H  = 0x00 /*INVALID SETTING*/;
 ICR1L  = 0x00 /*INVALID SETTING*/;
 TCCR1A = 0x00;
 TCCR1B = 0xC1; //start Timer
}

#pragma interrupt_handler timer1_capt_isr:11
void timer1_capt_isr(void)
{
 //timer 1 input capture event, read (int)value in ICR1 using;
}

#pragma interrupt_handler timer1_ovf_isr:14
void timer1_ovf_isr(void)
{
 //TIMER1 has overflowed
 TCNT1H = 0x00 /*INVALID SETTING*/; //reload counter high value
 TCNT1L = 0x00 /*INVALID SETTING*/; //reload counter low value
}

//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();
 timer1_init();

 MCUCR = 0x00;
 EICRA = 0x00; //extended ext ints
 EIMSK = 0x00;
 
 TIMSK0 = 0x00; //timer 0 interrupt sources
 TIMSK1 = 0x21; //timer 1 interrupt sources
 TIMSK2 = 0x00; //timer 2 interrupt sources
 
 PCMSK0 = 0x00; //pin change mask 0 
 PCMSK1 = 0x00; //pin change mask 1 
 PCMSK2 = 0x00; //pin change mask 2
 PCICR = 0x00; //pin change enable 
 PRR = 0x00; //power controller
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

//
void main(void)
{
 init_devices();
 //insert your functional code here...
}