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#include "main.h"
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#use fast_io (D)
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#define START  PIN_D4
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#define STOP1  PIN_D5
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#define STOP2  PIN_D7
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#define FIRE_DETECT  PIN_D6
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void main()
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{
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   setup_adc_ports(NO_ANALOGS|VSS_VDD);
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   setup_adc(ADC_CLOCK_DIV_2);
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   setup_psp(PSP_DISABLED);
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   setup_spi(SPI_SS_DISABLED);
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   setup_wdt(WDT_OFF);
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   setup_timer_0(RTCC_INTERNAL);
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   setup_timer_1(T1_DISABLED);
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   setup_timer_2(T2_DISABLED,0,1);
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   setup_timer_3(T3_DISABLED|T3_DIV_BY_1);
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   setup_ccp1(CCP_OFF);
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   setup_comparator(NC_NC_NC_NC);
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   setup_vref(FALSE);
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   SET_TRIS_D( 0b00000100 );
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  while(true)
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  {
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      delay_ms(50);
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      output_low(START);
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      output_low(STOP1);
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      output_low(STOP2);
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// Mode 1
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/*
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      delay_ms(50);
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      output_low(START);
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      output_low(STOP1);
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      output_low(STOP2);
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      output_high(START);     // start of time measurement
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      output_high(STOP2);
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      output_high(STOP1);
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      output_low(STOP1);
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      output_low(STOP2);
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      output_low(START);
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*/
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// mode 2
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      output_high(STOP2);  // Merime jenom jednim kanalem (druhy musi byt v H)
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      while(!input(FIRE_DETECT));
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      output_high(START);
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      output_low(START);
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      delay_us(150);
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      output_high(STOP1);
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      output_low(STOP1);
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      delay_us(1);
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      output_high(STOP1);
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      output_low(STOP1);
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      delay_us(10);
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      output_high(STOP1);
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      output_low(STOP1);
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  }
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}