Problem with comparison.
/Designs/Measuring_instruments/AWS01B/SW/PIC16F887/i2c_wind_sensor/main.c |
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0,0 → 1,74 |
#include "main.h" |
#use i2c(Slave,Fast,sda=PIN_B1,scl=PIN_B4,force_hw,address=0xA2) // Motor 2 |
#define H1 PIN_A1 |
#define L1 PIN_A2 |
#define H2 PIN_A3 |
#define L2 PIN_A4 |
signed int8 command; // rozsah +-127 |
#INT_SSP |
void ssp_interupt () |
{ |
BYTE incoming, state; |
output_a(0); // vypnuti vsech budicu |
state = i2c_isr_state(); |
if(state < 0x80) //Master is sending data |
{ |
command = i2c_read(); |
} |
if(state == 0x80) //Master is requesting data |
{ |
i2c_write(command); |
} |
} |
void main() |
{ |
int8 speed; |
setup_adc_ports(NO_ANALOGS|VSS_VDD); |
setup_adc(ADC_OFF); |
setup_timer_0(RTCC_INTERNAL);setup_wdt(WDT_144MS); |
setup_timer_1(T1_DISABLED); |
setup_timer_2(T2_DISABLED,0,1); |
setup_comparator(NC_NC_NC_NC); |
setup_vref(FALSE); |
setup_oscillator(OSC_8MHZ|OSC_INTRC); |
enable_interrupts(GLOBAL); |
enable_interrupts(INT_SSP); |
command=-128; // zastaveni po resetu |
while(true) |
{ |
if (command==-128) // prikaz na odpojeni mustku nebo chybna hodnota |
{ |
output_a(0); // volnobeh |
continue; |
}; |
speed=command+127; // posunuti 0 pro zaporna cisla |
output_a(0b10010); // vpred |
delay_us(speed); |
output_a(0); // vypnuti vsech budicu |
delay_us(1); |
restart_wdt(); |
output_a(0b01100); // vzad |
delay_us(254-speed); |
output_a(0); // vypnuti vsech budicu |
delay_us(1); |
} |
} |