abcd.rar_温度报警_系统温度

#include"iom48v.h" #include"macros.h" unsigned char duanxuan[10]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90}; unsigned char wei_number[4]={0}; #pragma interrupt_handler move_led: 17 unsigned int count=0,raw_count=0,raw=0; unsigned char move_wei=0,i=0,j=0,xianshi=1,up_Addr=50;down_Addr=60; unsigned int up_line=0,down_line=0; void move_led() { if(xianshi==1) count=raw_count; if(xianshi==2) count=up_line; if(xianshi==3) count=down_line; TCNT0=195; wei_number[0]=count/1000; wei_number[1]=count%1000/100; wei_number[2]=count%100/10; wei_number[3]=count%10; move_wei++; if(move_wei==4) { move_wei=0; } PORTD=duanxuan[wei_number[move_wei]]; if(move_wei==2) PORTD&=~BIT(7); PORTB|=0x0F; PORTB&=~BIT(move_wei); } void delay_ms(unsigned int k) { unsigned int m,n; for(m=0;m<k;m++) { for(n=0;n<80;n++); } } void ADC_read() { ADCSRA|=0b01000000; while(!ADIF);//等待转换结束 ADCSRA|=BIT(4); raw=ADC; raw_count=(unsigned int)(((unsigned long)raw*500/1023)); } void key_scan() { if(!(PINC&BIT(0))) xianshi=1; if(!(PINC&BIT(1))) xianshi=3; //下限 if(!(PINC&BIT(2))) xianshi=2; if(!(PINC&BIT(3))) { if(xianshi==3) { down_line+=1; if(down_line>=up_line) down_line=up_line-1; EEprom_write(down_Addr,down_line>>8); EEprom_write(down_Addr+1,down_line); delay_ms(100); } if(xianshi==2) { up_line+=1; if(up_line>=400) up_line=400; EEprom_write(up_Addr,up_line>>8); EEprom_write(up_Addr+1,up_line); delay_ms(100); } } if(!(PINC&BIT(4))) { if(xianshi==3) { down_line-=1; if(down_line<=100) down_line=100; EEprom_write(down_Addr,down_line>>8); EEprom_write(down_Addr+1,down_line); delay_ms(100); } if(xianshi==2) { up_line-=1; if(down_line>=up_line) up_line=down_line+1; EEprom_write(up_Addr,up_line>>8); EEprom_write(up_Addr+1,up_line); delay_ms(100); } } } void led_shine() { if(up_line<raw_count) { PORTB&=~BIT(5); } else if(up_line>=raw_count) { PORTB|=BIT(5); } if(down_line>raw_count) { PORTB&=~BIT(6); } else if(down_line<=raw_count) { PORTB|=BIT(6); } if(raw_count>down_line&&raw_count<up_line) PORTB|=BIT(4); else PORTB&=~BIT(4); } void IO_init() { DDRB=0xFF; //PB0-3数码管位选；PB4-6接LED PORTB=0xFF; DDRD=0xFF; //PD口接数码管段选 PORTD=0xFF; DDRC=0x00; //PC0-2接按键，加减上下限 PORTC=0xFF; } void EEprom_write(unsigned int Address,unsigned char Data) { CLI(); while(EECR&(1<<EEWE)); EEAR=Address; EEDR=Data; EECR|=(1<<EEMPE); EECR|=(1<<EEPE); SEI(); } unsigned int EEprom_read(unsigned int Address) { CLI(); while(EECR&(1<<EEWE)); EEAR=Address; EECR|=(1<<EERE); return EEDR; SEI(); } void T0_init() //4ms { TCCR0A=0x00; TCCR0B=0b00000011; //64分频 TCNT0=195; //4ms TIMSK0=0x01; } void ADC_init() { ADMUX=0x45;//选参考电压为AVCC，通道5 ADCSRA=0xC0;//使能ADC，并启动转 } void main() { CLI(); //关闭全局中断 IO_init(); T0_init(); ADC_init(); up_line=(EEprom_read(up_Addr)<<8); up_line+=EEprom_read(up_Addr+1); down_line=(EEprom_read(down_Addr)<<8); down_line+=EEprom_read(down_Addr+1); SEI(); while(1) { delay_ms(10); ADC_read(); key_scan(); led_shine(); } }