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楼主 |
发表于 2009-11-14 20:35:37
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更新了一版
/*****************************************************
This program was produced by the
CodeWizardAVR V2.03.4 Standard
Automatic Program Generator
?Copyright 1998-2008 Pavel Haiduc, HP InfoTech s.r.l.
http://www.hpinfotech.com
Project : test ADC interrupt
Version :
Date : 2009-11-14
Author :
Company :
Comments:
interrupt ADC
Chip type : ATmega88
Program type : Application
Clock frequency : 8.000000 MHz
Memory model : Small
External RAM size : 0
Data Stack size : 256
*****************************************************/
#include <mega88.h>
#include <delay.h>
#include <cvavr1602.h>
unsigned char num[4];
unsigned char tab_num[]={"0123456789"};
void port_init(void);
void inter_init(void);
void adc_init(void);
void transport(unsigned int aaa);
unsigned int adc_data;
#define ADC_VREF_TYPE 0x40
// ADC interrupt service routine
interrupt [ADC_INT] void adc_isr(void)
{
// Read the AD conversion result
adc_data=ADCW;
ADCSRA|=0x40;
}
// Read the AD conversion result
// with noise canceling
unsigned int read_adc(unsigned char adc_input)
{
unsigned int adc_data1,adc_value[6],adc_min,adc_max;
unsigned char i;
ADMUX=adc_input | (ADC_VREF_TYPE & 0xff);
// Delay needed for the stabilization of the ADC input voltage
delay_us(10);
ADCSRA|=0x40;
ADCSRA|=0x08;//启动中断
ADCSRA|=0x40;
for(i=0;i<6;i++)
{
while(~(0x08&ADCSRA))
adc_value=adc_data;
}
adc_min=adc_value[0];
adc_max=adc_value[0];
for(i=0;i<6;i++)
{
if(adc_min>adc_value)
adc_min=adc_value;
if(adc_max<adc_value)
adc_max=adc_value;
}
adc_data1=(adc_value[0]+adc_value[1]+adc_value[2]+adc_value[3]+adc_value[4]+adc_value[5]-adc_min-adc_max)/4;
ADCSRA&=0xF7;
return adc_data1;
}
// Declare your global variables here
void main(void)
{
// Declare your local variables here
unsigned int adc1value;
unsigned char i,j;
port_init();
inter_init();
adc_init();
lcd_init();
// Crystal Oscillator division factor: 1
#pragma optsize-
CLKPR=0x80;
CLKPR=0x00;
#ifdef _OPTIMIZE_SIZE_
#pragma optsize+
#endif
// Global enable interrupts
#asm("sei")
while (1)
{
// Place your code here
adc1value=read_adc(0x00);
transport(adc1value);
setxy(0,0);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
adc1value=read_adc(0x01);
transport(adc1value);
setxy(5,0);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
adc1value=read_adc(0x02);
transport(adc1value);
setxy(10,0);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
adc1value=read_adc(0x03);
transport(adc1value);
setxy(0,1);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
adc1value=read_adc(0x04);
transport(adc1value);
setxy(5,1);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
adc1value=read_adc(0x05);
transport(adc1value);
setxy(10,1);
for(i=0;i<4;i++)
{
j=num;
write_data(tab_num[j]);
}
delay_ms(200);
};
}
void port_init(void)
{
// Input/Output Ports initialization
// 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=0x00;
DDRB=0xFF;
// 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=Out Func6=Out Func5=Out Func4=In Func3=In Func2=In Func1=Out Func0=Out
// State7=0 State6=0 State5=0 State4=T State3=T State2=T State1=0 State0=0
PORTD=0x00;
DDRD=0xE3;
}
void adc_init(void)
{
//(1)设置ADCSR的最低三位，确定分频因子
//(2)设置ADIE为1,打开中断模式
//(3)设置ADEN为高电平，使ADC有效
//(4)设置ADSC,以马上开始转换
// Analog Comparator initialization
// Analog Comparator: Off
// Analog Comparator Input Capture by Timer/Counter 1: Off
ACSR=0x80;
ADCSRB=0x00;
// ADC initialization
// ADC Clock frequency: 62.500 kHz
// ADC Voltage Reference: AVCC pin
// ADC Auto Trigger Source: None
// Digital input buffers on ADC0: On, ADC1: On, ADC2: Off, ADC3: Off
// ADC4: Off, ADC5: Off
DIDR0=0x00;
ADMUX=ADC_VREF_TYPE & 0xff;
ADCSRA=0x87;//ADEN/ADIE=1
}
void transport(unsigned int aaa)
{
unsigned int bbb;
bbb=aaa;
num[3]=bbb%10;
bbb=bbb/10;
num[2]=bbb%10;
bbb=bbb/10;
num[1]=bbb%10;
bbb=bbb/10;
num[0]=bbb%10;
}
void inter_init(void)
{
// Timer/Counter 0 initialization
// Clock source: System Clock
// Clock value: Timer 0 Stopped
// Mode: Normal top=FFh
// OC0A output: Disconnected
// OC0B output: Disconnected
TCCR0A=0x00;
TCCR0B=0x00;
TCNT0=0x00;
OCR0A=0x00;
OCR0B=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
// OC2A output: Disconnected
// OC2B output: Disconnected
ASSR=0x00;
TCCR2A=0x00;
TCCR2B=0x00;
TCNT2=0x00;
OCR2A=0x00;
OCR2B=0x00;
// External Interrupt(s) initialization
// INT0: Off
// INT1: Off
// Interrupt on any change on pins PCINT0-7: Off
// Interrupt on any change on pins PCINT8-14: Off
// Interrupt on any change on pins PCINT16-23: Off
EICRA=0x00;
EIMSK=0x00;
PCICR=0x00;
// Timer/Counter 0 Interrupt(s) initialization
TIMSK0=0x00;
// Timer/Counter 1 Interrupt(s) initialization
TIMSK1=0x00;
// Timer/Counter 2 Interrupt(s) initialization
TIMSK2=0x00;
} |
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发表于 2009-11-14 18:22:10