Rev Author Line No. Line
2752 kaklik 1 /**** Automatic weather station 01A ****/
2 #define VERSION "0.1"
2806 kakl 3 #define ID "$Id: main.c 2907 2013-04-13 20:52:25Z kaklik $"
2751 kaklik 4 #include "main.h"
2828 kaklik 5 #include ".\common\dbloader.h"
2752 kaklik 6 #include <string.h>
2751 kaklik 7  
2752 kaklik 8 #CASE // Case sensitive compiler
9  
10 #define SEND_DELAY 50 // Time between two characters on RS232
11  
12 char VER[4]=VERSION; // Buffer for concatenate of a version string
13  
2826 kaklik 14 #define ONE_WIRE_PIN PIN_B1 // DS18B20 sensor connection
2751 kaklik 15 #include "..\ds1820.c"
16  
2781 kaklik 17 #define sht_data_pin PIN_D0 // SHT11 sensor connection
2779 kaklik 18 #define sht_clk_pin PIN_D1
2768 kaklik 19 #include "..\SHT.c"
20  
2781 kaklik 21 #define CSN_SPI PIN_C2 // preassure sensor connection
2779 kaklik 22 #include "..\MPL115A1.c"
2768 kaklik 23  
2782 kaklik 24 unsigned int16 timer0_overflow_count=0;
25 float anemo=0;
26  
2907 kaklik 27 int1 barometer_present;
2782 kaklik 28  
29 #int_TIMER1
30 void TIMER1_isr(void)
31 {
2907 kaklik 32 // wind speed calculation 32.768 kHz crystal on timer1 oscilator expected.
33 anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF); // pulses per second calculation
34 anemo = anemo / 10.5; // frequency divided by anemomether constant.
35  
36 timer0_overflow_count=0;
37 set_timer0(0);
38 set_timer1(0);
39 output_toggle(PIN_E0);
2782 kaklik 40 }
41  
42 #int_TIMER0
43 void TIMER0_isr(void)
44 {
45 timer0_overflow_count++;
46 }
47  
2843 kaklik 48 #int_default
2907 kaklik 49 void default_isr()
2843 kaklik 50 {
51 printf("Unexplained interrupt\r\n");
52 }
53  
2752 kaklik 54 void welcome(void) // Welcome message
55 {
56 char REV[50]=ID; // Buffer for concatenate of a version string
57  
58 if (REV[strlen(REV)-1]=='$') REV[strlen(REV)-1]=0;
2780 kaklik 59 printf("\r\n\r\n# AWS01A %s (C) 2013 www.mlab.cz \r\n",VER); // Welcome message
2752 kaklik 60 printf("#%s\r\n",&REV[4]);
2835 kaklik 61 printf("# ver seq temp[mK] hum_temp[mK] hum[%%] ");
2907 kaklik 62 printf("bar_temp[mK] pressure[hPa] Anemo[m/s]check\r\n\r\n");
2752 kaklik 63 }
64  
2751 kaklik 65 void main()
66 {
2752 kaklik 67 unsigned int16 seq=0;
2751 kaklik 68  
2848 kakl 69 setup_oscillator(OSC_8MHZ); // pri prouziti bootloaderu neni treba nastavovat
70 setup_wdt(WDT_2304MS);
2843 kaklik 71 restart_wdt(); //---WDT
2822 kaklik 72 setup_adc_ports(NO_ANALOGS|VSS_VDD);
2751 kaklik 73 setup_adc(ADC_CLOCK_DIV_2);
2848 kakl 74 setup_timer_0(RTCC_EXT_L_TO_H|RTCC_DIV_1);
2907 kaklik 75 setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1|T1_CLK_OUT);
2899 kaklik 76 // setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
2751 kaklik 77 setup_timer_2(T2_DISABLED,0,1);
78 setup_ccp1(CCP_OFF);
2823 kaklik 79 setup_comparator(NC_NC_NC_NC); // This device COMP currently not supported by the PICWizard
2779 kaklik 80 setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64);
81 output_high(CSN_SPI);
2782 kaklik 82  
2834 kaklik 83 welcome(); // welcome print and device indentification
2848 kakl 84  
2897 kakl 85 enable_interrupts(INT_TIMER1); // interrupts used for anemometer readings
86 enable_interrupts(INT_TIMER0);
2907 kaklik 87 enable_interrupts(GLOBAL);
2848 kakl 88  
89 restart_wdt(); //---WDT
90  
91 sht_init();
2907 kaklik 92 barometer_present = MPL_init(); // get correction coefficients from the sensor
2843 kaklik 93  
94 restart_wdt(); //---WDT
2822 kaklik 95  
2751 kaklik 96 while (TRUE)
97 {
2768 kaklik 98 char output[8]; // Output buffer
99 int8 j; // String pointer
100 int8 check=0; // Checksum is calculated between '$' and '*'
2907 kaklik 101 float SHT_temp1=0,SHT_hum1=0;
102 float SHT_temp2=0,SHT_hum2=0;
2779 kaklik 103 float local_temp;
104 float barometer_temperature, barometer_pressure;
2768 kaklik 105  
2835 kaklik 106 delay_ms(1000);
2752 kaklik 107 { // printf
108  
2835 kaklik 109 local_temp = ds1820_read()+27315;
2907 kaklik 110 sht_rd(SHT_temp1,SHT_hum1);
111 SHT_temp1 = (SHT_temp1 + 273.15)*100;
2779 kaklik 112  
2907 kaklik 113 if (barometer_present == TRUE)
114 {
115 barometer_temperature = (MPL_get_temperature() + 273.15)*100;
116 barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals
117 }
118 else
119 {
120 barometer_temperature = 0;
121 barometer_pressure = 0;
122 }
123  
2752 kaklik 124 delay_us(SEND_DELAY);
125 putc('$');
126 delay_us(SEND_DELAY);
127 sprintf(output,"AWS%s \0",VER);
128 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
129 sprintf(output,"%Lu \0", seq);
130 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2835 kaklik 131 sprintf(output,"%5.0f \0", local_temp );
2752 kaklik 132 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2907 kaklik 133 sprintf(output,"%5.0f \0", SHT_temp1);
2768 kaklik 134 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2907 kaklik 135 sprintf(output,"%3.1f \0", SHT_hum1);
2768 kaklik 136 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2907 kaklik 137 sprintf(output,"%5.0f \0", SHT_temp2);
138 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
139 sprintf(output,"%3.1f \0", SHT_hum2);
140 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2837 kaklik 141 sprintf(output,"%5.0f \0", barometer_temperature);
2779 kaklik 142 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
143 sprintf(output,"%5.1f \0", barometer_pressure);
144 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2782 kaklik 145 sprintf(output,"%3.1f \0", anemo);
146 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2752 kaklik 147 sprintf(output,"*%X\r\n\0", check);
148 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j++]); }
149 delay_us(SEND_DELAY);
150 }
2907 kaklik 151  
2752 kaklik 152 //---WDT
153 restart_wdt();
154 seq++; // Increment the number of measurement
2751 kaklik 155 }
156 }
2828 kaklik 157