Rev Author Line No. Line
2596 kaklik 1 #include ".\main.h"
2  
3302 kaklik 3 #define LED1 PIN_C6 //CHANGE PIN_XX TO YOUR LED PIN NUMBER
4 #define LED2 PIN_C5 //CHANGE PIN_XX TO YOUR LED PIN NUMBER
2743 kaklik 5 #define LED3 PIN_C4 //CHANGE PIN_XX TO YOUR LED PIN NUMBER
6 #define LED4 PIN_D3 //CHANGE PIN_XX TO YOUR LED PIN NUMBER
2596 kaklik 7  
3023 kaklik 8 #define S1 PIN_B0 //Raw up
9 #define S2 PIN_B1 //Raw down
10 #define S3 PIN_D0 //Fine up
11 #define S4 PIN_D1 //Fine down
2596 kaklik 12  
2743 kaklik 13 #define BEEP PIN_D2 //piezo beeper
14  
15 #define LCD_ENABLE_PIN PIN_E0 ////
16 #define LCD_RS_PIN PIN_E1 ////
17 #define LCD_RW_PIN PIN_E2 ////
18 #define LCD_DATA4 PIN_D4 ////
19 #define LCD_DATA5 PIN_D5 ////
20 #define LCD_DATA6 PIN_D6 ////
21 #define LCD_DATA7 PIN_D7
22 #include <lcd.c>
23  
3301 kaklik 24 #define OUTPUT_ENABLE PIN_B5
3023 kaklik 25  
3296 kaklik 26  
27 //#define MAXDUTY (int16)160 // 50 kHz
28 #define MAXDUTY (int16)400 // 20 kHz
29 //#define MAXDUTY (int16)800 // 10 kHz
30 #define HALFDUTY (int16)MAXDUTY/2
31 //#define DIVISOR 199 // 10 kHz
32 #define DIVISOR 99 // 20 kHz
33 //#define DIVISOR 39 // 50 kHz
34  
3316 kaklik 35 #define MAX_OUTPUT 530
36 #define raw_step 50
37 #define fine_step 5
3296 kaklik 38  
3316 kaklik 39  
40  
3315 kaklik 41 /// Linear interpolation parameters
42 //
43  
44 #define k 0.333961
45 #define q 206.952
46  
47  
3308 kaklik 48 unsigned int16 setpoint=43;
49 unsigned int16 adc_value;
50 int1 output_permit=FALSE;
51  
52 #INT_AD
53 void adc_handler() {
54  
3309 kaklik 55 adc_value = read_adc(ADC_READ_ONLY);
3308 kaklik 56 if(output_permit == TRUE)
57 {
58 if (adc_value <= setpoint)
59 {
60 set_pwm2_duty((int16)255); // zapnuti menice
61 output_low(LED2);
62 }
63 else // vypnuti menice
64 {
65 set_pwm2_duty((int16)MAXDUTY);
66 output_high(LED2);
67 }
68  
69 }
70 else
71 {
72 set_pwm2_duty((int16)MAXDUTY);
73 output_high(LED2);
74 }
3310 kaklik 75 read_adc(ADC_START_ONLY);
3308 kaklik 76 }
77  
2743 kaklik 78 void sound_beep( unsigned int lenght, int16 frequency)
2600 kaklik 79 {
2743 kaklik 80 unsigned int i;
81  
82 for(i=0;i<=lenght;i++)
83 {
84 output_toggle(BEEP);
85 delay_us(1/frequency);
86 }
2600 kaklik 87 }
88  
2596 kaklik 89 void main()
3308 kaklik 90 {
2743 kaklik 91 unsigned int1 button_press; // semafor pro cteni tlacitek
3312 kaklik 92 float output_voltage;
3316 kaklik 93 float voltage_setpoint = 300;
2596 kaklik 94  
3302 kaklik 95 setup_adc_ports(sAN0|VSS_VREF);
3305 kaklik 96 setup_adc(ADC_CLOCK_DIV_32);
2596 kaklik 97 setup_spi(SPI_SS_DISABLED);
98 setup_timer_0(RTCC_EXT_L_TO_H|RTCC_DIV_1);
99 setup_timer_1(T1_DISABLED);
3296 kaklik 100 setup_timer_2(T2_DIV_BY_1,DIVISOR,1);
3299 kaklik 101 setup_ccp1(CCP_PWM);
102 setup_ccp2(CCP_PWM);
3296 kaklik 103 set_pwm1_duty(HALFDUTY);
104 set_pwm2_duty(MAXDUTY);
2596 kaklik 105 setup_comparator(NC_NC_NC_NC);// This device COMP currently not supported by the PICWizard
106 setup_oscillator(OSC_8MHZ);
107  
3308 kaklik 108 enable_interrupts(INT_AD);
109 enable_interrupts(GLOBAL);
3305 kaklik 110  
2600 kaklik 111 output_high(LED1);
112 output_high(LED2);
113 output_high(LED3);
114 output_high(LED4);
2744 kaklik 115 output_low(BEEP);
2600 kaklik 116  
3309 kaklik 117 set_pwm2_duty((int16)MAXDUTY);
118  
2744 kaklik 119 lcd_init();
3296 kaklik 120 set_adc_channel(0);
3021 kaklik 121  
122 lcd_gotoxy(1,1);
123 lcd_putc("HVPS01A");
124 lcd_gotoxy(1,2);
125 lcd_putc(" MLAB.cz");
2744 kaklik 126 Delay_ms(1000);
2596 kaklik 127  
2743 kaklik 128 lcd_putc("\f");
3296 kaklik 129  
3311 kaklik 130 read_adc(ADC_START_ONLY);
2596 kaklik 131  
132 while(true)
133 {
3308 kaklik 134 if(input(OUTPUT_ENABLE)) output_permit=TRUE;
135 else output_permit=FALSE;
3313 kaklik 136  
3315 kaklik 137 output_voltage = adc_value * k + q;
3313 kaklik 138  
2743 kaklik 139 lcd_gotoxy(1,1);
3313 kaklik 140 printf(lcd_putc,"%3.0f",output_voltage);
2743 kaklik 141 lcd_gotoxy(1,2);
2596 kaklik 142  
3316 kaklik 143 voltage_setpoint = setpoint * k + q;
144  
145 if(input(OUTPUT_ENABLE))printf(lcd_putc,"Set:%3.0f ", voltage_setpoint);
3023 kaklik 146 else printf(lcd_putc,"DISABLED");
147  
2743 kaklik 148 if(button_press==false ) // tlacitka se ctou znovu pouze pokud v redchozim cyklu nebyla zmacknuta.
149 {
3316 kaklik 150  
2743 kaklik 151 if(!input(S1))
152 {
153 delay_ms(20);
154 if(!input(S1))
155 {
156 button_press=true;
157 sound_beep(100,700);
3316 kaklik 158 if(voltage_setpoint < (MAX_OUTPUT - raw_step) ) voltage_setpoint += raw_step;
2743 kaklik 159 }
160 }
161  
162 if(!input(S2))
163 {
164 delay_ms(20);
165 if(!input(S2))
166 {
167 button_press=true;
168 sound_beep(100,600);
3316 kaklik 169 if(voltage_setpoint > raw_step ) voltage_setpoint -= raw_step;
2743 kaklik 170 }
171 }
172  
173 if(!input(S3))
174 {
175 delay_ms(20);
176 if(!input(S3))
177 {
178 button_press=true;
179 sound_beep(100,500);
3316 kaklik 180 if(voltage_setpoint < MAX_OUTPUT - fine_step )voltage_setpoint += fine_step ;
2743 kaklik 181 }
182 }
183  
184 if(!input(S4))
185 {
186 delay_ms(20);
187 if(!input(S4))
188 {
189 button_press=true;
190 sound_beep(100,400);
3316 kaklik 191 if(voltage_setpoint > 0 ) voltage_setpoint -= fine_step;
2743 kaklik 192 }
193 }
3316 kaklik 194  
3317 kaklik 195 setpoint =(int16) ((voltage_setpoint - q) / k);
2743 kaklik 196 }
197  
198 if ( input(S1) && input(S2) && input(S3) && input(S4) ) button_press=false;
2600 kaklik 199 output_toggle(LED1);
2596 kaklik 200 }
201  
202 }