基于ATMEGA16单片机的空调控制器-43.zip

/***************************************************** Project : 汽车空调控制系统 Version : 1 Date : 2005-12-13 Author : Benny Blog : http://bennylo.mcublog.com Company : 509 Comments: Chip type : ATmega16L Program type : Application Clock frequency : 8.000000 MHz Memory model : Small External SRAM size : 0 Data Stack size : 256 *****************************************************/ #include <mega16.h> #include <stdlib.h> #include "Pt1000Tab.h" #include "inc.h" #asm .equ __lcd_port=0x18 ;PORTB #endasm #include <lcd.h> bit boolean; uchar ventilator_state; uchar fan; uchar blow; uchar run_mode; uchar temp; uchar setting_value; interrupt [TIM2_COMP] void timer2_comp_isr(void) { //产生PWM,控制步进电机 if (fan==1) { OCR2=64; } else if(fan==2) { OCR2=128; } } #define FIRST_ADC_INPUT 0 //第一通道 #define LAST_ADC_INPUT 1 //最后一通道 ，最大值为7,共8个通道 unsigned int adc_data[LAST_ADC_INPUT-FIRST_ADC_INPUT+1]; #define ADC_VREF_TYPE 0x40 // ADC中断服务程序 // 自动扫描模拟量输入端口， interrupt [ADC_INT] void adc_isr(void) { register static unsigned char input_index=0; // 读取转换结果 adc_data[input_index]=ADCW; // 选择转换通道 if (++input_index > (LAST_ADC_INPUT-FIRST_ADC_INPUT)) input_index=0; ADMUX=(FIRST_ADC_INPUT|ADC_VREF_TYPE)+input_index; //启动AD转换 ADCSRA|=0x40; } void main(void) { float current_temp;//保存当前温度 // Port A 初始化 // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTA=0x00; DDRA=0x00; // Port B 初始化 // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTB=0x00; DDRB=0x00; // Port C 初始化 // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTC=0x38; DDRC=0x38; // Port D 初始化 // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=In Func0=In // State7=T State6=T State5=T State4=T State3=T State2=T State1=T State0=T PORTD=0x1f; DDRD=0xF8; //用T2产生PWM,控制风向步进电机 // Timer/Counter 2 initialization // Clock source: System Clock // Clock value: Timer 2 Stopped // Mode: Normal top=FFh // OC2 output: Disconnected ASSR=0x00; TCCR2=0x64; TCNT2=0x00; OCR2=0x00; // Timer(s)/Counter(s) Interrupt(s) initialization TIMSK=0x80; // Analog Comparator initialization // Analog Comparator: Off // Analog Comparator Input Capture by Timer/Counter 1: Off ACSR=0x80; SFIOR=0x00; // ADC initialization // ADC Clock frequency: 125.000 kHz // ADC Voltage Reference: AVCC pin // ADC Auto Trigger Source: Free Running ADMUX=FIRST_ADC_INPUT|ADC_VREF_TYPE; ADCSRA=0xEE; SFIOR&=0x1F; // LCD module初始化 lcd_init(16); // 开启全局中断 #asm("sei") dis_character(); setting_value=25; run_mode=0; ventilator_state=0; lcd_gotoxy(12,3); lcd_putsf("OFF"); while (1) { scan_key(); blow_mode(); display(); if(run_mode==2) { current_temp=Pt1000Tab[adc_data[0]]; if (current_temp<setting_value) { stop_compressor(); //lcd_gotoxy(10,1); //lcd_putsf("Blast"); } else { start_compressor(); //lcd_gotoxy(10,1); //lcd_putsf("Cool"); } } } } void start_compressor(void){ //Start PORTD|=0x18; PORTD&=~0x10; PORTD|=0x18; } void stop_compressor(void){ //Stop PORTD|=0x18; PORTD&=~0x08; PORTD|=0x18; } void start_ventilator(void) { PORTD|=0x40;//换气风机运行 } void stop_ventilator(void){ PORTD&=~0x40;//换气风机停止 } void start_evaporator_fan(void){ PORTD|=0x20;//蒸发器风机运行 } void stop_evaporator_fan(void){ PORTD&=~0x20;//蒸发器风机停止 } /*-----------------------------------------------键盘扫描------------------------------------------- -----------------------------------------------键盘扫描-------------------------------------------*/ void scan_key(void){ /* K11 K12 K13 K21 K22 K23 K31 K32 K33 */ //K13 K23 K33 PORTC&=~0x20; if((PIND&0x07)!=0x07) { delay(); if((PIND&0x07)!=0x07) { if((PIND&0x07)==0x06) { //Key 3-3 //uchar key_num[]="K33"; while((PIND&0x07)==0x06); switch(blow) { case 0: { blow=1; lcd_gotoxy(10,2); lcd_putsf("Mode0"); break; } case 1: { blow=2; lcd_gotoxy(10,2); lcd_putsf("Mode1"); break; } case 2: { blow=3; lcd_gotoxy(10,2); lcd_putsf("Mode2"); break; } case 3: { blow=0; lcd_gotoxy(10,2); lcd_putsf("Mode3"); break; } } return; } if((PIND&0x07)==0x05) { //Key 2-3 //uchar key_num[]="K23"; while((PIND&0x07)==0x05); if(ventilator_state==1) { ventilator_state=0; stop_ventilator(); lcd_gotoxy(12,3); lcd_putsf("OFF"); } else { ventilator_state=1; start_ventilator(); lcd_gotoxy(12,3); lcd_putsf("Run"); } return; } if((PIND&0x07)==0x03) { //Key 1-3 //uchar key_num[]="K13"; while((PIND&0x07)==0x03); switch(run_mode) { case 2: { //关闭模式 stop_evaporator_fan(); stop_compressor(); lcd_gotoxy(10,1); lcd_putsf("OFF "); run_mode=0; break; } case 0: { //送风模式 start_evaporator_fan(); stop_compressor(); lcd_gotoxy(10,1); lcd_putsf("Blast"); run_mode=1; break; } case 1: { //制冷模式 start_evaporator_fan(); start_compressor(); lcd_gotoxy(10,1); lcd_putsf("Cool "); run_mode=2; break; } } return; } } } PORTC|=0x20; //K12 K22 K32 PORTC&=~0x10; if((PIND&0x07)!=0x07) { if((PIND&0x07)==0x06) { //Key 3-2 //uchar key_num[]="K32"; while((PIND&0x07)==0x06); return; } if((PIND&0x07)==0x05) { //Key 2-2 //uchar key_num[]="K22"; while((PIND&0x07)==0x05); if (setting_value<=18) { setting_value=18; } else { setting_value--; } return; } if((PIND&0x07)==0x03) { //Key 1-2 /