Revision 0:7bdef100ed1d, committed 2021-11-13

Comitter:

lule

Date:

Sat Nov 13 09:13:30 2021 +0000

Commit message:

Aleksandar Lukic 2020/0247;

Changed in this revision

diff -r 000000000000 -r 7bdef100ed1d main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Nov 13 09:13:30 2021 +0000
@@ -0,0 +1,71 @@
+//bonus pitanje:
+//U vecem delu opsega se ne cuje razlika, jedino pred kraj (~99%),
+//jacina zvuka se smanjuje do 0.
+
+//include statements
+#include "mbed.h"
+
+//global variables
+PwmOut buzzer(PA_11);
+InterruptIn sw1(PC_9);
+AnalogIn pot1(PA_0);
+AnalogIn pot2(PA_1);
+
+DigitalOut A(PA_10), B(PA_9), C(PA_8), D(PB_10), E(PB_5), F(PB_4), G(PB_3);
+DigitalOut sel1(PB_6), sel2(PC_7);
+
+char hex_number[10] = {0xC0, 0xF9, 0xA4, 0xB0, 0x99, 0x92, 0x82, 0xF8, 0x80, 0x90};
+DigitalOut display[7] = {A, B, C, D, E, F, G};
+
+char volume = 0;
+
+//directive
+#define PERIOD_US0 5000.f
+#define PERIOD_US1 50.f
+#define SCALAR 4950.f
+
+#define REFRESH_RATE_MS 6
+
+//functions
+void ISR_sw1(void){
+    volume = pot1.read() * 100;
+}
+
+void hexToDisplay(char sel1_val, char sel2_val, char hex){    
+    sel1.write(sel1_val);
+    sel2.write(sel2_val);
+    
+    for(int i = 6; i >= 0; i--)
+        display[i] = (1<<i) & hex;
+}
+
+void currNumToDisplay(char num){
+    char dec = num / 10;
+    char dig = num % 10;
+    
+    if(dec){
+        hexToDisplay(0, 1, hex_number[dec]);
+        wait_ms(REFRESH_RATE_MS);
+    }
+    hexToDisplay(1, 0, hex_number[dig]);
+    wait_ms(REFRESH_RATE_MS);
+    
+    
+    hexToDisplay(1, 1, 0);
+}
+
+//main function
+int main(){
+    volume = pot1.read() * 100;
+    
+    sw1.fall(&ISR_sw1);
+    
+    while(true){
+            buzzer.period_us(PERIOD_US0 - SCALAR * pot2.read());
+            buzzer.write(pot1.read());
+            
+            currNumToDisplay(volume);
+            
+            wait_ms(10);
+    }
+}
\ No newline at end of file

diff -r 000000000000 -r 7bdef100ed1d mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Nov 13 09:13:30 2021 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file