Revision 0:b2990a681c4e, committed 2021-11-13

Comitter:

dobrica

Date:

Sat Nov 13 08:43:34 2021 +0000

Commit message:

Dobrica Stosic 2019/0277

Changed in this revision

diff -r 000000000000 -r b2990a681c4e main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Nov 13 08:43:34 2021 +0000
@@ -0,0 +1,107 @@
+/* 
+    Prikazana vrednost ne odgovara onome sto se moze cuti.
+    Predpostavka je da je tako zbog ispunjenosti perioda.
+    Zvuk je ovde digitalan i razmenjuje vrednosti izmedju maksimalne i 0.
+    Sto znaci da ce za visokofrekfentni talas (sa malom periodom) i sa velikim
+    duty cycleom vise izgledati kao konstantna vrednost. Ovakva kostantna vrednost
+    ne dovodi do primetnog talasanja vazduha.
+*/
+
+
+// Biblioteke
+#include<stdio.h>
+#include<math.h>
+#include"mbed.h"
+
+// Definisanje makroa
+#define FREQ 19800
+
+// Globalne promenjlive
+int temp = -1, pot1_value = -1;
+AnalogIn pot1(PA_0);
+AnalogIn pot2(PA_1);
+InterruptIn btn1(PC_9);
+PwmOut buzzer(PA_11);
+BusOut display(PA_10, PA_9, PA_8, PB_10, PB_5, PB_4, PB_3, PA_5);
+DigitalOut SEL1(PC_7);
+DigitalOut SEL2(PB_6);
+int num[10] = { 0b01000000, //0
+                0b01111001, //1
+                0b00100100, //2
+                0b00110000, //3
+                0b00011001, //4
+                0b00010010, //5
+                0b00000010, //6
+                0b01111000, //7
+                0b00000000, //8
+                0b00010000}; //9
+
+// Deklaracija funkcija
+void ISR_btn1(void);
+
+// Glavni program
+int main()
+{
+       // set up
+       btn1.fall(&ISR_btn1);
+       
+       buzzer.period( 1.0/( (FREQ*pot2.read()) + 200 ) );
+       buzzer.write(0.0);
+       SEL1.write(1);
+       SEL2.write(1);
+       
+       // deo koda koji se iznova izvrsava
+       while(true)
+       {
+           
+           buzzer.period( 1.0/( (FREQ*pot2.read()) + 200 ) );
+           buzzer.write(pot1.read()* 1.0);
+           
+           pot1_value = pot1.read()*100;
+           
+           if( abs( temp - pot1_value) > 5)
+           {
+               temp = -1;
+           }
+           
+           if(temp < 0)
+           {
+                SEL1.write(1);
+                SEL2.write(1);
+                wait_ms(10);
+           }
+           else
+           {
+                if(temp<10)
+                {
+                    SEL2.write(1);
+                    SEL1.write(0);
+                    display.write(num[temp%10]);
+                    wait_ms(10);    
+                }
+                else
+                {
+                    SEL1.write(1);
+                    SEL2.write(0);
+                    display.write((num[(temp/10)%10]));
+              
+                    wait_ms(10);
+              
+                    SEL2.write(1);
+                    SEL1.write(0);
+                    display.write(num[temp%10]);
+                    
+                    wait_ms(10);
+                }
+            }
+           
+           
+       }
+}
+
+// Definicija funkcija
+void ISR_btn1()
+{
+    temp = (pot1.read()*100.0f);
+    temp = temp%100;
+}
\ No newline at end of file

diff -r 000000000000 -r b2990a681c4e mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Nov 13 08:43:34 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file