Rev 2829 Rev 2834
1 /**** Automatic weather station 01A ****/ 1 /**** Automatic weather station 01A ****/
2 #define VERSION "0.1" 2 #define VERSION "0.1"
3 #define ID "$Id: main.c 2829 2013-03-10 16:41:20Z kaklik $" 3 #define ID "$Id: main.c 2834 2013-03-15 00:32:54Z kaklik $"
4 #include "main.h" 4 #include "main.h"
5 #include ".\common\dbloader.h" 5 #include ".\common\dbloader.h"
6 #include <string.h> 6 #include <string.h>
7   7  
8 #CASE // Case sensitive compiler 8 #CASE // Case sensitive compiler
9   9  
10 #define SEND_DELAY 50 // Time between two characters on RS232 10 #define SEND_DELAY 50 // Time between two characters on RS232
11   11  
12 char VER[4]=VERSION; // Buffer for concatenate of a version string 12 char VER[4]=VERSION; // Buffer for concatenate of a version string
13   13  
14 #define ONE_WIRE_PIN PIN_B1 // DS18B20 sensor connection 14 #define ONE_WIRE_PIN PIN_B1 // DS18B20 sensor connection
15 #include "..\ds1820.c" 15 #include "..\ds1820.c"
16   16  
17 #define sht_data_pin PIN_D0 // SHT11 sensor connection 17 #define sht_data_pin PIN_D0 // SHT11 sensor connection
18 #define sht_clk_pin PIN_D1 18 #define sht_clk_pin PIN_D1
19 #include "..\SHT.c" 19 #include "..\SHT.c"
20   20  
21 #define CSN_SPI PIN_C2 // preassure sensor connection 21 #define CSN_SPI PIN_C2 // preassure sensor connection
22 #include "..\MPL115A1.c" 22 #include "..\MPL115A1.c"
23   23  
24 unsigned int16 timer0_overflow_count=0; 24 unsigned int16 timer0_overflow_count=0;
25 float anemo=0; 25 float anemo=0;
26   26  
27   27  
28 #int_TIMER1 28 #int_TIMER1
29 void TIMER1_isr(void) 29 void TIMER1_isr(void)
30 { 30 {
31 output_toggle(PIN_D1); 31 output_toggle(PIN_D1);
32 anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF); 32 anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF);
33 timer0_overflow_count=0; 33 timer0_overflow_count=0;
34 set_timer0(0); 34 set_timer0(0);
35 } 35 }
36   36  
37 #int_TIMER0 37 #int_TIMER0
38 void TIMER0_isr(void) 38 void TIMER0_isr(void)
39 { 39 {
40 timer0_overflow_count++; 40 timer0_overflow_count++;
41 } 41 }
42   42  
43   43  
44   44  
45 void welcome(void) // Welcome message 45 void welcome(void) // Welcome message
46 { 46 {
47 char REV[50]=ID; // Buffer for concatenate of a version string 47 char REV[50]=ID; // Buffer for concatenate of a version string
48   48  
49 if (REV[strlen(REV)-1]=='$') REV[strlen(REV)-1]=0; 49 if (REV[strlen(REV)-1]=='$') REV[strlen(REV)-1]=0;
50 printf("\r\n\r\n# AWS01A %s (C) 2013 www.mlab.cz \r\n",VER); // Welcome message 50 printf("\r\n\r\n# AWS01A %s (C) 2013 www.mlab.cz \r\n",VER); // Welcome message
51 printf("#%s\r\n",&REV[4]); 51 printf("#%s\r\n",&REV[4]);
52 printf("# ver seq temp[K] hum_temp[K] hum[%%] "); 52 printf("# ver seq temp[K] hum_temp[K] hum[%%] ");
53 printf("bar_temp[K] pressure[hPa] check\r\n\r\n"); 53 printf("bar_temp[K] pressure[hPa] check\r\n\r\n");
54   54  
55 restart_wdt(); //---WDT 55 restart_wdt(); //---WDT
56 } 56 }
57   57  
58 void main() 58 void main()
59 { 59 {
60 unsigned int16 seq=0; 60 unsigned int16 seq=0;
61   61  
62 setup_adc_ports(NO_ANALOGS|VSS_VDD); 62 setup_adc_ports(NO_ANALOGS|VSS_VDD);
63 setup_adc(ADC_CLOCK_DIV_2); 63 setup_adc(ADC_CLOCK_DIV_2);
64 setup_timer_0(RTCC_EXT_L_TO_H|RTCC_DIV_1); 64 setup_timer_0(RTCC_EXT_L_TO_H|RTCC_DIV_1);
65 setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1|T1_CLK_OUT); 65 setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1|T1_CLK_OUT);
66 setup_timer_2(T2_DISABLED,0,1); 66 setup_timer_2(T2_DISABLED,0,1);
67 setup_ccp1(CCP_OFF); 67 setup_ccp1(CCP_OFF);
68 setup_comparator(NC_NC_NC_NC); // This device COMP currently not supported by the PICWizard 68 setup_comparator(NC_NC_NC_NC); // This device COMP currently not supported by the PICWizard
69 setup_oscillator(OSC_8MHZ); 69 // setup_oscillator(OSC_8MHZ); // pri prouziti bootloaderu neni treba nastavovat
70 setup_wdt(WDT_1152MS|WDT_DIV_16); 70 // setup_wdt(WDT_1152MS|WDT_DIV_16);
71 setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64); 71 setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64);
72 output_high(CSN_SPI); 72 output_high(CSN_SPI);
73   73  
74 delay_ms(100); 74 delay_ms(100);
75   75  
76 welcome(); // welocome print and device indentification 76 welcome(); // welcome print and device indentification
77   77  
78 sht_init(); 78 sht_init();
79 MPL_init(); // get correction coefficients from the sensor 79 MPL_init(); // get correction coefficients from the sensor
80   80  
81 enable_interrupts(INT_TIMER1); // interrupts used for anemometer readings 81 // enable_interrupts(INT_TIMER1); // interrupts used for anemometer readings
82 enable_interrupts(INT_TIMER0); 82 // enable_interrupts(INT_TIMER0);
83 enable_interrupts(GLOBAL); 83 // enable_interrupts(GLOBAL);
84   84  
85 while (TRUE) 85 while (TRUE)
86 { 86 {
87 char output[8]; // Output buffer 87 char output[8]; // Output buffer
88 int8 j; // String pointer 88 int8 j; // String pointer
89 int8 check=0; // Checksum is calculated between '$' and '*' 89 int8 check=0; // Checksum is calculated between '$' and '*'
90 float SHT_temp,SHT_hum; 90 float SHT_temp,SHT_hum;
91 float local_temp; 91 float local_temp;
92 float barometer_temperature, barometer_pressure; 92 float barometer_temperature, barometer_pressure;
93   93  
94 delay_ms(100); 94 delay_ms(100);
95 { // printf 95 { // printf
96   96  
97 local_temp = ds1820_read()+273.15; 97 local_temp = ds1820_read()+273.15;
98 sht_rd(SHT_temp,SHT_hum); 98 sht_rd(SHT_temp,SHT_hum);
99 SHT_temp += 273.15; 99 SHT_temp += 273.15;
100 // barometer_temperature = MPL_get_temperature() + 273.15; 100 // barometer_temperature = MPL_get_temperature() + 273.15;
101 // barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals 101 // barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals
102 102
103 delay_us(SEND_DELAY); 103 delay_us(SEND_DELAY);
104 putc('$'); 104 putc('$');
105 delay_us(SEND_DELAY); 105 delay_us(SEND_DELAY);
106 sprintf(output,"AWS%s \0",VER); 106 sprintf(output,"AWS%s \0",VER);
107 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 107 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
108 sprintf(output,"%Lu \0", seq); 108 sprintf(output,"%Lu \0", seq);
109 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 109 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
110 sprintf(output,"%f \0", local_temp ); 110 sprintf(output,"%f \0", local_temp );
111 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 111 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
112 sprintf(output,"%f \0", SHT_temp); 112 sprintf(output,"%f \0", SHT_temp);
113 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 113 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
114 sprintf(output,"%3.1f \0", SHT_hum); 114 sprintf(output,"%3.1f \0", SHT_hum);
115 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 115 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
116 sprintf(output,"%f \0", barometer_temperature); 116 sprintf(output,"%f \0", barometer_temperature);
117 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 117 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
118 sprintf(output,"%5.1f \0", barometer_pressure); 118 sprintf(output,"%5.1f \0", barometer_pressure);
119 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 119 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
120 sprintf(output,"%3.1f \0", anemo); 120 sprintf(output,"%3.1f \0", anemo);
121 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; } 121 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
122 sprintf(output,"*%X\r\n\0", check); 122 sprintf(output,"*%X\r\n\0", check);
123 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j++]); } 123 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j++]); }
124 delay_us(SEND_DELAY); 124 delay_us(SEND_DELAY);
125 } 125 }
126 126
127 //---WDT 127 //---WDT
128 restart_wdt(); 128 restart_wdt();
129 seq++; // Increment the number of measurement 129 seq++; // Increment the number of measurement
130 } 130 }
131 } 131 }
132   132