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 2828 2013-03-10 15:49:54Z kaklik $"
2751 kaklik 4 #include "main.h"
2828 kaklik 5 #include ".\common\dbloader.h"
2752 kaklik 6 #include <string.h>
2751 kaklik 7  
2752 kaklik 8 #CASE // Case sensitive compiler
9  
10 #define SEND_DELAY 50 // Time between two characters on RS232
11  
12 char VER[4]=VERSION; // Buffer for concatenate of a version string
13  
2826 kaklik 14 #define ONE_WIRE_PIN PIN_B1 // DS18B20 sensor connection
2751 kaklik 15 #include "..\ds1820.c"
16  
2781 kaklik 17 #define sht_data_pin PIN_D0 // SHT11 sensor connection
2779 kaklik 18 #define sht_clk_pin PIN_D1
2768 kaklik 19 #include "..\SHT.c"
20  
2781 kaklik 21 #define CSN_SPI PIN_C2 // preassure sensor connection
2779 kaklik 22 #include "..\MPL115A1.c"
2768 kaklik 23  
2782 kaklik 24 unsigned int16 timer0_overflow_count=0;
25 float anemo=0;
26  
27  
28 #int_TIMER1
29 void TIMER1_isr(void)
30 {
31 output_toggle(PIN_D1);
32 anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF);
2788 kaklik 33 timer0_overflow_count=0;
34 set_timer0(0);
2782 kaklik 35 }
36  
37 #int_TIMER0
38 void TIMER0_isr(void)
39 {
40 timer0_overflow_count++;
41 }
42  
43  
44  
2752 kaklik 45 void welcome(void) // Welcome message
46 {
47 char REV[50]=ID; // Buffer for concatenate of a version string
48  
49 if (REV[strlen(REV)-1]=='$') REV[strlen(REV)-1]=0;
2780 kaklik 50 printf("\r\n\r\n# AWS01A %s (C) 2013 www.mlab.cz \r\n",VER); // Welcome message
2752 kaklik 51 printf("#%s\r\n",&REV[4]);
2781 kaklik 52 printf("# ver seq temp[K] hum_temp[K] hum[%%] ");
53 printf("bar_temp[K] pressure[hPa] check\r\n\r\n");
2752 kaklik 54  
2827 kaklik 55 restart_wdt(); //---WDT
2752 kaklik 56 }
57  
2751 kaklik 58 void main()
59 {
2752 kaklik 60 unsigned int16 seq=0;
2751 kaklik 61  
2822 kaklik 62 setup_adc_ports(NO_ANALOGS|VSS_VDD);
2751 kaklik 63 setup_adc(ADC_CLOCK_DIV_2);
2782 kaklik 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);
2751 kaklik 66 setup_timer_2(T2_DISABLED,0,1);
67 setup_ccp1(CCP_OFF);
2823 kaklik 68 setup_comparator(NC_NC_NC_NC); // This device COMP currently not supported by the PICWizard
2751 kaklik 69 setup_oscillator(OSC_8MHZ);
2825 kaklik 70 setup_wdt(WDT_1152MS|WDT_DIV_16);
2779 kaklik 71 setup_spi(SPI_MASTER | SPI_MODE_0 | SPI_CLK_DIV_64);
72 output_high(CSN_SPI);
2782 kaklik 73  
2824 kaklik 74  
2779 kaklik 75 delay_ms(100);
2751 kaklik 76  
2779 kaklik 77 welcome();
2752 kaklik 78  
2768 kaklik 79 sht_init();
2779 kaklik 80 MPL_init(); // get correction coefficients from the sensor
2768 kaklik 81  
2827 kaklik 82 enable_interrupts(INT_TIMER1); // interrupts used for anemometer readings
83 enable_interrupts(INT_TIMER0);
84 enable_interrupts(GLOBAL);
2822 kaklik 85  
2751 kaklik 86 while (TRUE)
87 {
2768 kaklik 88 char output[8]; // Output buffer
89 int8 j; // String pointer
90 int8 check=0; // Checksum is calculated between '$' and '*'
91 float SHT_temp,SHT_hum;
2779 kaklik 92 float local_temp;
93 float barometer_temperature, barometer_pressure;
2768 kaklik 94  
2752 kaklik 95 delay_ms(100);
96 { // printf
97  
2789 kaklik 98 local_temp = ds1820_read()+273.15;
2768 kaklik 99 sht_rd(SHT_temp,SHT_hum);
2779 kaklik 100 SHT_temp += 273.15;
2788 kaklik 101 // barometer_temperature = MPL_get_temperature() + 273.15;
102 // barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals
2779 kaklik 103  
2752 kaklik 104 delay_us(SEND_DELAY);
105 putc('$');
106 delay_us(SEND_DELAY);
107 sprintf(output,"AWS%s \0",VER);
108 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
109 sprintf(output,"%Lu \0", seq);
110 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2779 kaklik 111 sprintf(output,"%f \0", local_temp );
2752 kaklik 112 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2779 kaklik 113 sprintf(output,"%f \0", SHT_temp);
2768 kaklik 114 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2779 kaklik 115 sprintf(output,"%3.1f \0", SHT_hum);
2768 kaklik 116 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2779 kaklik 117 sprintf(output,"%f \0", barometer_temperature);
118 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
119 sprintf(output,"%5.1f \0", barometer_pressure);
120 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2782 kaklik 121 sprintf(output,"%3.1f \0", anemo);
122 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
2752 kaklik 123 sprintf(output,"*%X\r\n\0", check);
124 j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j++]); }
125 delay_us(SEND_DELAY);
126 }
127  
128 //---WDT
129 restart_wdt();
130 seq++; // Increment the number of measurement
2751 kaklik 131 }
132 }
2828 kaklik 133