/Designs/Measuring_instruments/AWS01A/SW/PIC16F887/main.c
24,16 → 24,19
unsigned int16 timer0_overflow_count=0;
float anemo=0;
 
int1 barometer_present;
 
#int_TIMER1
void TIMER1_isr(void)
{
output_toggle(PIN_E0);
set_timer1(0);
// anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF);
// timer0_overflow_count=0;
// set_timer0(0);
// wind speed calculation 32.768 kHz crystal on timer1 oscilator expected.
anemo = ((timer0_overflow_count * 0xFF) + get_timer0())/(32768.0/0xFFFF); // pulses per second calculation
anemo = anemo / 10.5; // frequency divided by anemomether constant.
 
timer0_overflow_count=0;
set_timer0(0);
set_timer1(0);
output_toggle(PIN_E0);
}
 
#int_TIMER0
43,11 → 46,9
}
 
#int_default
default_isr()
void default_isr()
{
 
printf("Unexplained interrupt\r\n");
 
}
 
void welcome(void) // Welcome message
58,7 → 59,7
printf("\r\n\r\n# AWS01A %s (C) 2013 www.mlab.cz \r\n",VER); // Welcome message
printf("#%s\r\n",&REV[4]);
printf("# ver seq temp[mK] hum_temp[mK] hum[%%] ");
printf("bar_temp[mK] pressure[hPa] Anemo[pls/s]check\r\n\r\n");
printf("bar_temp[mK] pressure[hPa] Anemo[m/s]check\r\n\r\n");
}
 
void main()
71,7 → 72,7
setup_adc_ports(NO_ANALOGS|VSS_VDD);
setup_adc(ADC_CLOCK_DIV_2);
setup_timer_0(RTCC_EXT_L_TO_H|RTCC_DIV_1);
setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1);//|T1_CLK_OUT);
setup_timer_1(T1_EXTERNAL|T1_DIV_BY_1|T1_CLK_OUT);
// setup_timer_1(T1_INTERNAL|T1_DIV_BY_8);
setup_timer_2(T2_DISABLED,0,1);
setup_ccp1(CCP_OFF);
80,18 → 81,15
output_high(CSN_SPI);
 
welcome(); // welcome print and device indentification
output_low(PIN_E1);
enable_interrupts(INT_TIMER1); // interrupts used for anemometer readings
enable_interrupts(INT_TIMER0);
// disable_interrupts(INT_RDA);
enable_interrupts(GLOBAL);
output_high(PIN_E1);
enable_interrupts(GLOBAL);
 
restart_wdt(); //---WDT
 
sht_init();
MPL_init(); // get correction coefficients from the sensor
barometer_present = MPL_init(); // get correction coefficients from the sensor
restart_wdt(); //---WDT
 
100,7 → 98,8
char output[8]; // Output buffer
int8 j; // String pointer
int8 check=0; // Checksum is calculated between '$' and '*'
float SHT_temp=0,SHT_hum=0;
float SHT_temp1=0,SHT_hum1=0;
float SHT_temp2=0,SHT_hum2=0;
float local_temp;
float barometer_temperature, barometer_pressure;
 
108,11 → 107,20
{ // printf
 
local_temp = ds1820_read()+27315;
sht_rd(SHT_temp,SHT_hum);
SHT_temp = (SHT_temp + 273.15)*100;
barometer_temperature = (MPL_get_temperature() + 273.15)*100;
barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals
sht_rd(SHT_temp1,SHT_hum1);
SHT_temp1 = (SHT_temp1 + 273.15)*100;
if (barometer_present == TRUE)
{
barometer_temperature = (MPL_get_temperature() + 273.15)*100;
barometer_pressure = MPL_get_pressure() * 10.0; // conversion to hectopascals
}
else
{
barometer_temperature = 0;
barometer_pressure = 0;
}
delay_us(SEND_DELAY);
putc('$');
delay_us(SEND_DELAY);
122,10 → 130,14
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%5.0f \0", local_temp );
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%5.0f \0", SHT_temp);
sprintf(output,"%5.0f \0", SHT_temp1);
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%3.1f \0", SHT_hum);
sprintf(output,"%3.1f \0", SHT_hum1);
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%5.0f \0", SHT_temp2);
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%3.1f \0", SHT_hum2);
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%5.0f \0", barometer_temperature);
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j]); check^=output[j++]; }
sprintf(output,"%5.1f \0", barometer_pressure);
136,7 → 148,7
j=0; while(output[j]!=0) { delay_us(SEND_DELAY); putc(output[j++]); }
delay_us(SEND_DELAY);
}
// output_toggle(PIN_E0);
 
//---WDT
restart_wdt();
seq++; // Increment the number of measurement