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main.cpp
00001 /* Prikazana vrednost ne odgovara onome što se moze čuti jer zuja.write() ne prima 00002 baš sve vrednosti. Na primer, na displeju nećemo videti razliku od 0.005 ali je 00003 cuti jer je displej na dve decimale. 00004 */ 00005 00006 //uboz biblioteka 00007 #include "mbed.h" 00008 00009 //definisanje direktiva 00010 00011 //definisanje glavnih promenljivih 00012 AnalogIn pot1(PA_1); 00013 AnalogIn pot2(PA_0); 00014 PwmOut zuja(PA_11); 00015 InterruptIn taster(PC_9); 00016 00017 float frekvPoc = 19800; 00018 float frekv = frekvPoc*pot1.read() + 200; 00019 float i = 0.0; 00020 00021 BusOut Digits(PA_10, PA_9, PA_8, PB_10, PB_5, PB_4, PB_3, PB_6, PC_7); 00022 int odNulaDo15[] = { 0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8, 0x80, 0x90 }; 00023 int odNulaDo15Desetice[] = { 0xFF, 0x179, 0x124, 0x130, 0x119, 0x112, 0x102, 0x178, 0x100, 0x110 }; 00024 int desetice = 0; 00025 int jedinice = 0; 00026 int kreni = 0; 00027 00028 00029 //pomocne funkcije 00030 void prikaziJacinu(); 00031 00032 //glavna funkcija 00033 int main() { 00034 00035 taster.fall( &prikaziJacinu ); 00036 00037 //glavna petlja 00038 while(1) { 00039 00040 frekv = frekvPoc*pot1.read() + 200; 00041 00042 zuja.period( 1/( frekv ) ); 00043 zuja.write( pot2.read() ); 00044 00045 if (kreni==0) {Digits = 0x17F;wait_ms(20);continue;} 00046 else { Digits = odNulaDo15[jedinice];} 00047 wait_ms(10); 00048 Digits = odNulaDo15Desetice[desetice]; 00049 wait_ms(10); 00050 } 00051 } 00052 void prikaziJacinu() { 00053 kreni = 1; 00054 00055 jedinice = (int)(pot2.read()*100)%10; 00056 desetice = floor( (pot2.read()*10) ); 00057 }
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