karine aknin
piano 4 octaves, 8 notes, 3 threads, 2 outputs, no bug, clean code, comments, remove old .h
Fork of
Nucleo_piano_CS435
by 
karine aknin
Diff: main.cpp
- Revision:
- 5:824785b64822
- Parent:
- 3:ca0d5d72f842
- Child:
- 6:58bab17100a2
--- a/main.cpp Mon Jul 02 19:47:31 2018 +0000
+++ b/main.cpp Tue Jul 03 02:06:44 2018 +0000
@@ -2,43 +2,64 @@
#include "TextLCD.h"
#include "button_value.h"
#include <map>
+#include <string.h>
+#include <math.h>
// 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);
+// Define Bus In for Buttons (Do, Re, Mi, Fa, Sol, La, Si, Do)
+BusIn Bus_In(PA_0, PA_1, PA_4, PB_0, PA_10, PB_3, PB_5, PB_4);
// Define the PWM speaker
PwmOut speaker(PB_10);
//Define variables for sound
-volatile int state_buttons = 0;
-std::map<int, double> period;
+struct NoteReference {
+ char name[4];
+ int mask;
+ double frequency;
+ double add[4];
+ };
+NoteReference noteReference[8] = { {"Do", 0x1, 262.0, {0.0, -1.0, -1.5, -3.0}},
+ {"Re", 0x2, 294.0, {0.0, -1.0, -1.0, -3.0 }},
+ {"Mi", 0x4, 330.0, {0.0, -1.0, -1.5, -3.0}},
+ {"Fa", 0x8, 349.0, {0.0, 0.5, -1.0, 2.0}},
+ {"Sol", 0x10, 392.0, {0.0, 0.0, 0.0, 0.0}},
+ {"La", 0x20, 440.0, {0.0, 0.0, 0.0, 0.0}},
+ {"Si", 0x40, 494.0, {0.0, 0.0, -1.0, -1.0}},
+ {"Do", 0x80, 523.0, {0.0, 0.0, 0.0, 0.0}}
+ };
+volatile int state_buttons = 0;
+volatile int gamme = 0;
void print_note(char *str)
{
+ int i = 0;
+ int note = 0;
+
lcd.cls();
- lcd.printf(str);
+ wait(0.000040f);
+ while (str[i])
+ {
+ note = str[i];
+ lcd.putc(note);
+ wait(0.000040f);
+ i++;
+ }
}
-void print_char()
-{
- lcd.printf("Hello world!");
- fflush(stdout);
-}
-
-Thread thread;
+//Thread thread;
DigitalOut led1(LED1);
-void print_thread()
+/**void print_thread()
{
while (true) {
wait(1);
print_char();
}
-}
+}**/
void refresh_state_button()
{
@@ -47,117 +68,37 @@
printf("state_button [ %d ]\n", state_buttons);
}
-void play_music(int key)
+void play_music(int notes, double frequency)
{
printf("play_music \n");
- printf("key [%x], value[%f]\n", key, period[key]);
- speaker.period(period[key]);
- while (state_buttons == key) {
+ speaker.period(1.0 / frequency);
+ while (state_buttons == notes) {
refresh_state_button();
}
- check_buttons();
+ speaker = 0;
}
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;
+ double frequency = 0.0;
+ int i = 0;
+ char bufferOutput[30] = "";
+
+ while (i < 8)
+ {
+ if (!(state_buttons & noteReference[i].mask)) {
+ frequency += noteReference[i].frequency * pow(2.0, gamme) + noteReference[i].add[gamme];
+ strcat(bufferOutput, noteReference[i].name);
+ strcat(bufferOutput, " ");
+ }
+ strcat(bufferOutput, "\0");
+ i++;
+ }
+ if (frequency > 0) {
+ speaker = 0.25;
+ print_note(bufferOutput);
+ play_music(state_buttons, frequency);
+ lcd.cls();
}
}
@@ -170,18 +111,9 @@
int main()
{
- 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);
-
+ //lcd.printf("%s\n", "CS435 Piano");
+ //wait(3);
+ speaker = 0;
while (true) {
printf("loop\n");
led1 = !led1;