//ICC-AVR application builder : 2006-12-10 17:22:46
// Target : M8
// Crystal: 8.0000Mhz
//ICC-AVR application builder : 2006-12-10 21:46:41
// Target : M8
// Crystal: 8.0000Mhz

#include <iom8v.h>
#include <macros.h>
long Ddummy,Counter_MotorSpeedPulse,Counter_IRPulse,Settings_IRTopValue;
char Settings_PrintQuality;
const FTC2 =64;

void port_init(void)
{
 PORTB = 0x00;
 DDRB  = 0xFF;
 PORTC = 0x7F; //m103 output only
 DDRC  = 0x00;
 PORTD = 0xFF;
 DDRD  = 0x00;
}

//TIMER1 initialisation - prescale:1
// WGM: 4) CTC, TOP=OCRnA
// desired value: 1KHz
// actual value:  1.000KHz (0.0%)
void timer1_init(void)
{
 TCCR1B = 0x00; //stop
 TCNT1  = 0x00; //setup
 ICR1H  = 0x1F;
 ICR1L  = 0x3F;
 OCR1A = FTC2*Settings_PrintQuality;    //每組Settings_PrintQuality個(gè)墨滴選一個(gè)充電
 OCR1B = FTC2/2;                        //充電脈寬是墨滴周期時(shí)間的一半，充電相位為0，充電好壞由斷點(diǎn)調(diào)整
 TCCR1A = 0x50;
 TCCR1B = 0x09; //start Timer
}
//
#pragma interrupt_handler timer1_compa_isr:7   
void timer1_compa_isr(void)   //開始一個(gè)新的充電墨滴時(shí)PB1開始產(chǎn)生一個(gè)下降沿或上升沿
{   //compare occured TCNT1=OCR1A
    //if(PINB1==0){   //如果PB1是低電平，就開始一個(gè)新的DA轉(zhuǎn)換
	//   ;
	//}
}

#pragma interrupt_handler timer1_compb_isr:8
void timer1_compb_isr(void)   //停止充電時(shí)刻，PB2開始產(chǎn)生上升沿或下降沿
{
 //compare occured TCNT1=OCR1B
}
//

//TIMER2 initialisation - prescale:1
// WGM: Normal
// desired value: 62.5KHz
// actual value: 62.5KHz (0.0%)
void timer2_init(void)
{
 TCCR2 = 0x00; //stop
 ASSR  = 0x00; //set async mode
 TCNT2 = 0x00; //setup
 OCR2  = FTC2; //0x40;振蕩頻率的分頻值，8M－64，4M－32 
 TCCR2 = 0x19; //CTC 模式
}

#pragma interrupt_handler int0_isr:2
void int0_isr(void)  //external interupt on INT0  記錄電機(jī)速度
{
     Counter_MotorSpeedPulse++;
	 if(Counter_MotorSpeedPulse>=1000){ //計(jì)算并顯示電機(jī)速度
	    Counter_MotorSpeedPulse =0;
	    PORTB |=32; //PB5腳置高電平
	 }
	 if(Counter_MotorSpeedPulse==500) PORTB &=223; //PB5腳置低電平
}

#pragma interrupt_handler int1_isr:3
void int1_isr(void) //external interupt on INT1   記錄光電開關(guān)的觸發(fā)脈沖
{
     Counter_IRPulse++;
	 if(Counter_IRPulse >= 1000){  //計(jì)算并觸發(fā)打印按鈕
	    Counter_IRPulse=0;
	    PORTB |=64; //PB6腳置高電平
	 }
     if(Counter_IRPulse == 500) PORTB &=191; //PB6腳置低電平
}

//call this routine to initialise all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();
 timer2_init();
 timer1_init();

 MCUCR = 0x0F;
 GICR  = 0xC0;
 TIMSK = 0x18; //timer interrupt sources
 SEI(); //re-enable interrupts
 //all peripherals are now initialised
}

void main()
{
   Settings_IRTopValue = 1000;        //光電開關(guān)觸發(fā)Settings_IRTopValue次后就開始打印一條信息 
   Settings_PrintQuality = 10;     //10個(gè)墨滴選一個(gè)充電
   Counter_MotorSpeedPulse =0;
   Counter_IRPulse =0;
   
   init_devices();
}