cs5512.i

使用cs5512做的电子秤,精度0.002kg

#pragma used+
sfrb TWBR=0;
sfrb TWSR=1;
sfrb TWAR=2;
sfrb TWDR=3;
sfrb ADCL=4;
sfrb ADCH=5;
sfrw ADCW=4;      
sfrb ADCSRA=6;
sfrb ADMUX=7;
sfrb ACSR=8;
sfrb UBRRL=9;
sfrb UCSRB=0xa;
sfrb UCSRA=0xb;
sfrb UDR=0xc;
sfrb SPCR=0xd;
sfrb SPSR=0xe;
sfrb SPDR=0xf;
sfrb PIND=0x10;
sfrb DDRD=0x11;
sfrb PORTD=0x12;
sfrb PINC=0x13;
sfrb DDRC=0x14;
sfrb PORTC=0x15;
sfrb PINB=0x16;
sfrb DDRB=0x17;
sfrb PORTB=0x18;
sfrb PINA=0x19;
sfrb DDRA=0x1a;
sfrb PORTA=0x1b;
sfrb EECR=0x1c;
sfrb EEDR=0x1d;
sfrb EEARL=0x1e;
sfrb EEARH=0x1f;
sfrw EEAR=0x1e;   
sfrb UBRRH=0x20;
sfrb UCSRC=0X20;
sfrb WDTCR=0x21;
sfrb ASSR=0x22;
sfrb OCR2=0x23;
sfrb TCNT2=0x24;
sfrb TCCR2=0x25;
sfrb ICR1L=0x26;
sfrb ICR1H=0x27;
sfrb OCR1BL=0x28;
sfrb OCR1BH=0x29;
sfrw OCR1B=0x28;  
sfrb OCR1AL=0x2a;
sfrb OCR1AH=0x2b;
sfrw OCR1A=0x2a;  
sfrb TCNT1L=0x2c;
sfrb TCNT1H=0x2d;
sfrw TCNT1=0x2c;  
sfrb TCCR1B=0x2e;
sfrb TCCR1A=0x2f;
sfrb SFIOR=0x30;
sfrb OSCCAL=0x31;
sfrb OCDR=0x31;
sfrb TCNT0=0x32;
sfrb TCCR0=0x33;
sfrb MCUCSR=0x34;
sfrb MCUCR=0x35;
sfrb TWCR=0x36;
sfrb SPMCR=0x37;
sfrb TIFR=0x38;
sfrb TIMSK=0x39;
sfrb GIFR=0x3a;
sfrb GICR=0x3b;
sfrb OCR0=0X3c;
sfrb SPL=0x3d;
sfrb SPH=0x3e;
sfrb SREG=0x3f;
#pragma used-

#asm
	#ifndef __SLEEP_DEFINED__
	#define __SLEEP_DEFINED__
	.EQU __se_bit=0x40
	.EQU __sm_mask=0xB0
	.EQU __sm_powerdown=0x20
	.EQU __sm_powersave=0x30
	.EQU __sm_standby=0xA0
	.EQU __sm_ext_standby=0xB0
	.EQU __sm_adc_noise_red=0x10
	.SET power_ctrl_reg=mcucr
	#endif
#endasm

#pragma used+

void delay_us(unsigned int n);
void delay_ms(unsigned int n);

#pragma used-

extern void written_add_data(unsigned int temp_add,unsigned char temp_data);

extern void written(unsigned char temp_1);

extern void Lcd_inint(void);

extern void display_clear(void); 

extern void Written_char(unsigned char line,unsigned char row,unsigned char z); 

extern void Display_AD(unsigned int Dis_data);  

extern void Port_Init(void);

extern void Tone(unsigned char Buzzer_time);

void Timer0_init(void)
{
TCCR0  = 0x00;
TCNT0  = 0x00;
OCR0   = 0x06;
TIMSK |= 0x02;
TCCR0  = 0x0a;
}

interrupt [20] void timer0_comp_isr(void)
{
PORTD.1 = ~PORTD.1;
}

unsigned int AD_temp_buffer;

void delay_nop(void)
{

#asm("nop")
#asm("nop")
#asm("nop")
#asm("nop")
#asm("nop")
}

void CS5512_Read(void)
{ 
bit sdata;
unsigned char Front4bit=0;
unsigned int Back16bit=0;
unsigned char Front4flag=0;
unsigned char i;

PORTD.3=0;

while(PIND.0);
{    
#asm("cli")   

PORTD.1=0;

for(i=0;i<4;i++)      
{
PORTD.1=1;
delay_nop();
sdata=PIND.0;
Front4flag|=(sdata<<(3-i));
PORTD.1=0;
delay_nop();
} 

{
for(i=0;i<20;i++)
{
PORTD.1=1;
delay_nop();
sdata=PIND.0;
if(i<4) Front4bit|=sdata<<(3-i);
else  Back16bit|=sdata<<(19-i);   
PORTD.1=0;
delay_nop();            
} 

switch(Front4bit)
{
case 0:{AD_temp_buffer=Back16bit/10;break;}
case 1:{AD_temp_buffer=(Back16bit+65536)/10;break;}
case 2:{AD_temp_buffer=(Back16bit+131072)/10;break;}
case 3:{AD_temp_buffer=(Back16bit+196608)/10;break;}
case 4:{AD_temp_buffer=(Back16bit+262144)/10;break;}
case 5:{AD_temp_buffer=(Back16bit+327680)/10;break;}
case 6:{AD_temp_buffer=(Back16bit+393216)/10;break;}
case 7:{AD_temp_buffer=(Back16bit+458752)/10;break;}
default :{ }
}         
Display_AD(AD_temp_buffer);
}
}   
PORTD.3=1;

#asm("sei")
}

void main(void)
{ 
Tone(200);         
#asm("cli") 

Port_Init();       
Timer0_init();     

Lcd_inint();       

#asm("sei")  

PORTD.3=0;

while(1)
{
CS5512_Read();
} 
}