/***************************************************** Chip type : ATmega8 Program type : Application Clock frequency : 8,0000 MHz Memory model : Small External SRAM size : 0 Data Stack size : 256 *****************************************************/ #include #include #include #include // Alphanumeric LCD Module functions #asm .equ __lcd_port=0x12 ;PORTD #endasm #include #define ADC_VREF_TYPE 0x00 #define KEY1_DOWN (PINC.1 == 0) #define KEY2_DOWN (PINC.2 == 0) #define KEY3_DOWN (PINC.3 == 0) #define KEY4_DOWN (PINB.5 == 0) #define KEY5_DOWN (PINB.4 == 0) #define KEY6_DOWN (PINB.3 == 0) #define BEEP PORTB.0 unsigned char lcd_buffer1[9] = " "; unsigned char lcd_buffer2[9] = " "; volatile unsigned int adc_data = 0, T, ee_tmprSet = 0, T_prev = 0, T_now = 0, T_disp = 0; volatile int ReadKey = 0, KeyDelay = 0, Mode = 0, program = 1; unsigned int i=1, T0 = 3, Kp = 70; // Коэффициенты нужно подбирать! volatile int pwm_val = 0; // Для хранения величины ШИМ в 1/1024 eeprom unsigned int T_prog[3] = { 300, 150, 400 }; // Температурные режимы в EEPROM unsigned int T_set[3]; static void avr_init(); void green(void); void red(void); void my_beep(void); unsigned int read_adc(unsigned char adc_input); // ADC interrupt service routine interrupt [ADC_INT] void adc_isr(void) { // Read the AD conversion result adc_data=ADCW; } // Read the AD conversion result // with noise canceling unsigned int read_adc(unsigned char adc_input) { ADMUX=adc_input|ADC_VREF_TYPE; #asm in r30,mcucr cbr r30,__sm_mask sbr r30,__se_bit | __sm_adc_noise_red out mcucr,r30 sleep cbr r30,__se_bit out mcucr,r30 #endasm return adc_data; } // Timer 0 overflow interrupt service routine interrupt [TIM0_OVF] void timer0_ovf_isr(void) { TCNT0=0x00; if (ReadKey == 0) { if (KeyDelay == 0) { // Если KeyDelay == 0, то можно нажимать опять KeyDelay = 0; if (KEY1_DOWN) { ReadKey = 1; my_beep(); } if (KEY2_DOWN) { ReadKey = 2; my_beep(); } if (KEY3_DOWN) { ReadKey = 3; my_beep(); } if (KEY4_DOWN) { ReadKey = 4; my_beep(); } if (KEY5_DOWN) { ReadKey = 5; my_beep(); } if (KEY6_DOWN) { ReadKey = 6; my_beep(); } if (ReadKey) { KeyDelay = 10; } } else { KeyDelay--; } } // if i--; if (i==0) { T_disp = T; i=15; } } void main(void) { avr_init(); adc_data=read_adc(0); //T_now = (1000 - adc_data) / 2; T_now = adc_data; T_prev = T_now; while (1) { adc_data=read_adc(0); //T_now = (1000 - adc_data) / 2; T_now = adc_data; if ((T_now < (T_prev - 3)) || (T_now > (T_prev + 3))) { T = T_prev; } else { T = T_now; T_prev = T_now; } pwm_val = Kp * (ee_tmprSet - T + T0); if (pwm_val > 1023) pwm_val = 1023; if (pwm_val < 0) pwm_val = 0; if ((T > (ee_tmprSet - 10)) && (T < (ee_tmprSet + 10))) { green(); } else { red(); } if (ReadKey == 5) { if (Mode == 1 || Mode == 2 || Mode == 3) { T_set[Mode - 1] = T_set[Mode - 1] + 10; } else { ee_tmprSet = ee_tmprSet + 10; } ReadKey = 0; } if (ReadKey == 1) { if (Mode == 1 || Mode == 2 || Mode == 3) { T_set[Mode - 1] = T_set[Mode - 1] - 10; } else { ee_tmprSet = ee_tmprSet - 10; } ReadKey = 0; } if (ReadKey == 3) { Mode++; if (Mode == 4) { #asm("cli") T_prog[0] = T_set[0]; T_prog[1] = T_set[1]; T_prog[2] = T_set[2]; #asm("sei") Mode = 0; } ReadKey = 0; } if (Mode == 1 || Mode == 2 || Mode == 3) { sprintf(lcd_buffer1, "Tp %i: ", Mode); sprintf(lcd_buffer2, "%03i ", T_set[Mode - 1]); } if (ReadKey == 6) { ee_tmprSet = T_set[0]; program = 1; ReadKey = 0; } if (ReadKey == 4) { ee_tmprSet = T_set[1]; program = 2; ReadKey = 0; } if (ReadKey == 2) { ee_tmprSet = T_set[2]; program = 3; ReadKey = 0; } if (Mode == 0) { sprintf(lcd_buffer1, "Tc=%03i T", T_disp); sprintf(lcd_buffer2, "p=%03i P%i", ee_tmprSet, program); //sprintf(lcd_buffer2, "p=%04i ", abs(T_now[1] - T_now[0])); } lcd_gotoxy(0, 0); lcd_puts(lcd_buffer1); lcd_gotoxy(0, 4); lcd_puts(lcd_buffer2); OCR1AH = (unsigned char)(pwm_val>>8); OCR1AL = (unsigned char)pwm_val; }; } void green(void) { PORTC.4 = 0; PORTC.5 = 1; } void red(void) { PORTC.4 = 1; PORTC.5 = 0; } void my_beep(void) { BEEP = 1; delay_ms(10); BEEP = 0; } static void avr_init() { // Input/Output Ports initialization // Port B initialization // Func7=In Func6=In Func5=In Func4=In Func3=In Func2=In Func1=Out Func0=Out // State7=T State6=T State5=P State4=P State3=P State2=P State1=0 State0=0 PORTB=0x3C; DDRB=0x03; // Port C initialization // Func6=In Func5=Out Func4=Out Func3=In Func2=In Func1=In Func0=In // State6=T State5=0 State4=1 State3=P State2=P State1=P State0=T PORTC=0x1E; DDRC=0x30; // Port D initialization // 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=0x00; DDRD=0x00; // Timer/Counter 0 initialization // Clock source: System Clock // Clock value: 3,600 kHz TCCR0=0x05; TCNT0=0x00; // Timer/Counter 1 initialization // Clock source: System Clock // Clock value: 125,000 kHz // Mode: Ph. correct PWM top=03FFh // OC1A output: Non-Inv. // 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=0x83; TCCR1B=0x03; 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 // OC2 output: Disconnected ASSR=0x00; TCCR2=0x00; TCNT2=0x00; OCR2=0x00; // External Interrupt(s) initialization // INT0: Off // INT1: Off MCUCR=0x00; // Timer(s)/Counter(s) Interrupt(s) initialization TIMSK=0x01; // Analog Comparator initialization // Analog Comparator: Off // Analog Comparator Input Capture by Timer/Counter 1: Off ACSR=0x80; SFIOR=0x00; // ADC initialization // ADC Clock frequency: 115,200 kHz // ADC Voltage Reference: AREF pin ADMUX=ADC_VREF_TYPE; ADCSRA=0x8E; // LCD module initialization lcd_init(16); if (KEY6_DOWN) { T_set[0] = 0; T_set[1] = 0; T_set[2] = 0; } else { T_set[0] = T_prog[0]; T_set[1] = T_prog[1]; T_set[2] = T_prog[2]; } ee_tmprSet = T_set[0]; // Global enable interrupts #asm("sei") }