Diff: main.cpp

Revision:

3:ca0d5d72f842

Parent:

2:35f13b7f3659

--- a/main.cpp	Thu Nov 23 13:09:25 2017 +0000
+++ b/main.cpp	Mon Jul 02 18:01:08 2018 +0000
@@ -1,8 +1,30 @@
 #include "mbed.h"
+#include "TextLCD.h"
+#include "button_value.h"
+#include <map>
+
+// Define screen
+TextLCD lcd(PA_8, PA_9, PC_7, PB_6, PA_7, PA_6, PA_5); // RS, RW, E, D4-D7
+ 
+// Define Bus In for Buttons (Do, Re, Mi, Fa)
+BusIn Bus_In(PA_10, PB_3, PB_5, PB_4);
 
-void print_char(char c = '*')
+// Define the PWM speaker
+PwmOut speaker(PB_10);
+    
+//Define variables for sound
+volatile int state_buttons = 0;
+std::map<int, double> period;
+
+void print_note(char *str)
 {
-    printf("%c", c);
+    lcd.cls();
+    lcd.printf(str);
+}
+
+void print_char()
+{
+    lcd.printf("Hello world!");
     fflush(stdout);
 }
 
@@ -18,14 +40,153 @@
     }
 }
 
+void    refresh_state_button()
+{
+   printf("refresh_state_button \n");
+   state_buttons = Bus_In & Bus_In.mask(); // read the bus and mask out bits not being used    
+   printf("state_button [ %d ]\n", state_buttons);
+}
+
+void        play_music(int key)
+{
+   printf("play_music \n");
+   printf("key [%x], value[%f]\n", key, period[key]);
+   speaker.period(period[key]);            
+   while (state_buttons == key) {
+     refresh_state_button();
+   }
+   check_buttons();
+}
+
+void        check_buttons()
+{
+   printf("check_buttons \n");
+    // check bits set in bus
+    switch(state_buttons) { 
+        case 0x0: 
+            printf("0b0000, All buttons pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            speaker = 0.25;
+            print_note("DO RE MI FA");
+            play_music(0x0);
+            break;
+        case 0x1: 
+            printf("0b0001, Button 2 & 3 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            speaker = 0.25;
+            print_note("RE MI FA");
+            play_music(0x1);
+            break;
+        case 0x2: 
+            printf("0b0010, Button 1 & 3 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO MI FA");
+            speaker = 0.25;
+            play_music(0x2);
+            break; 
+        case 0x3: 
+            printf("0b0011, Button 3 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("MI FA");
+            speaker = 0.25;
+            play_music(0x3);
+            break;
+        case 0x4: 
+            printf("0b0100, Button 1 & 2 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO RE FA");
+            speaker = 0.25;
+            play_music(0x4);
+            break;
+        case 0x5: 
+            printf("0b0101, Button 2 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("RE FA");
+            speaker = 0.25;
+            play_music(0x5);
+            break;
+        case 0x6: 
+            printf("0b0110, Button 1 & 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO FA");
+            speaker = 0.25;
+            play_music(0x6);
+            break;
+        case 0x7: 
+            printf("0b0111, Button 4 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("FA");
+            speaker = 0.5;
+            play_music(0x7);
+            break;
+        case 0x8: 
+            printf("0b1000, Button 1 & 2 & 3 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO RE MI");
+            speaker = 0.25;
+            play_music(0x8);
+            break; 
+        case 0x9: 
+            printf("0b1001, Button 2 & 3 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("RE MI");
+            speaker = 0.25;
+            play_music(0x9);
+            break; 
+        case 0xA: 
+            printf("0b1010, Button 1 & 3 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO MI");
+            speaker = 0.25;
+            play_music(0xA);
+            break;
+        case 0xB: 
+            printf("0b1011, Button 3 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("MI");
+            speaker = 0.5;
+            play_music(0xB);
+            break;
+        case 0xC: 
+            printf("0b1100, Button 1 & 2 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            speaker = 0.25;
+            print_note("DO RE");
+            play_music(0xC);
+            break; 
+        case 0xD: 
+            printf("0b1101, Button 2 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("RE");
+            speaker = 0.5;
+            play_music(0xD);
+            break; 
+        case 0xE: 
+            printf("0b1110, Button 1 pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            print_note("DO");
+            speaker = 0.5;
+            play_music(0xE);
+            break; 
+        case 0xF: 
+            printf("0b1111, No button pressed [%d] \n\r", Bus_In & Bus_In.mask());
+            speaker = 0;
+            lcd.cls();
+            break;
+    }
+}
+
+// TODO: perios of notes with ID
+// TODO: implement new 4 buttons
+// TODO: link new 2 buttons + implementation
+// TODO: deal with gamme
+
+// TODO: PB with DO RE on the screen (board crashes)
+
 int main()
 {
-    printf("\n\n*** RTOS basic example ***\n");
+    printf("\n\n*** CS 435 - Piano ***\n");
+    
+    period[0xE] = 1.0 / 262.0; // DO
+    period[0xD] = 1.0 / 294.0; // RE
+    period[0xB] = 1.0 / 330.0; // MI
+    period[0x7] = 1.0 / 349.0; // FA
+    period[0xC] = 1.0 / (262.0 + 294.0); // DO + RE
+    period[0x8] = 1.0 / (262.0 + 294.0 + 330.0) 
+    lcd.printf("CS 435 - Piano");
 
-    thread.start(print_thread);
+    //thread.start(print_thread);
 
     while (true) {
+        printf("loop\n");
         led1 = !led1;
-        wait(0.5);
+        refresh_state_button();
+        check_buttons();
+        wait(0.1);
     }
 }