Diff: main.cpp

Revision:

5:432203c226ed

Parent:

4:bd0675c58f5e

Child:

6:84c34161559e

--- a/main.cpp	Thu Feb 13 21:21:44 2014 +0000
+++ b/main.cpp	Thu Feb 13 22:54:56 2014 +0000
@@ -9,7 +9,7 @@
 DigitalIn fire(p14);
 PwmOut spkr(p26);
 C12832 lcd(p5, p7, p6, p8, p11);
-DigitalIn up(p15); 
+DigitalIn up(p15);
 DigitalIn down(p12);
 BusOut leds(LED1,LED2,LED3,LED4);
 
@@ -22,7 +22,7 @@
 char note;
 char length;
 const int slaveAddress = 0x42;
-int received = 0;
+char received = 0;
 
 int main()
 {
@@ -31,7 +31,7 @@
 #endif
     lcd.cls();
     lcd.printf("hello world");
-    
+
     while(1) {
         if (fire) {
             leds=0xf;
@@ -49,48 +49,107 @@
             }
             spkr=0.0;
             //end speaker code
-        }
-        else 
-        {
+        } else {
             leds=joy;
 #ifdef MASTER
-            if(up)
-            {//master sends its song to slave
+            if(up) {
+                //master sends its song to slave
                 i2cPort.start();
                 //send address
                 i2cPort.write(slaveAddress);
                 //send tempo (BPM)
                 //loop through song
-                i2cPort.write(6);
-//                for(char j=0;j<10;j++)
-//                {
-//                    //send frequency
-//                    i2cPort.write(j);
-//                    //play note
-//                    //wait length
-//                    wait(1);
-//                }
-//                //send stop code
-//                i2cPort.write(0xFF);
+                for(int i=0;i<50/*(sizeof(marioNotes)/sizeof(NoteName))*/;i++){
+                    if(marioNotes[i] == R) {
+                        i2cPort.write(R);
+                        spkr=0.0;
+                        wait(.7*marioBeats[i]/12);
+                    }
+                    else{
+                        i2cPort.write(marioNotes[i]);
+                        spkr.period(1/(notes[marioNotes[i]]));
+                        spkr=.5;
+                        wait(.7*marioBeats[i]/12);
+                        spkr=0.0;
+                    }
+                }
+                spkr=0.0;
+                //send stop code
+                i2cPort.write(0xFF);
+                wait(.5);
                 //close i2c port
                 i2cPort.stop();
-            }
-            else if(down)
-            {//slave should send it's song to master
+            } else if(down) {
+                //slave should send it's song to master
+                i2cPort.start();
+                //send address with read command
+                i2cPort.write(slaveAddress|0x01);
                 
+                do {
+                    received = i2cPort.read(1);
+                    spkr=0.0;
+                    if(received == R) {
+                        spkr=0.0;
+                    }
+                    else{
+                        spkr.period(1/(notes[received]));
+                        spkr=.5;
+                    }
+                    lcd.cls();
+                    lcd.locate(0,0);
+                    lcd.printf("Received: %d",received);
+                } while(received != 0xFF);
+                
+                lcd.cls();
+                lcd.locate(0,0);
+                lcd.printf("done");
+                i2cPort.stop();
             }
 #endif
 #ifdef SLAVE
             received = slave.receive();
-            if(I2CSlave::ReadAddressed==received){//master is requesting slave song
-                
+            if(I2CSlave::ReadAddressed==received) { //master is requesting slave song
+                for(int i=0;i<50/*(sizeof(marioNotes)/sizeof(NoteName))*/;i++){
+                    if(marioNotes[i] == R) {
+                        slave.write(R);
+                        spkr=0.0;
+                        wait(.7*marioBeats[i]/12);
+                    }
+                    else{
+                        slave.write(marioNotes[i]);
+                        spkr.period(1/(notes[marioNotes[i]]));
+                        spkr=.5;
+                        wait(.7*marioBeats[i]/12);
+                        spkr=0.0;
+                    }
+                }
+                spkr=0.0;
+                slave.write(0xFF);
+                slave.stop();
             }
-            else if(I2CSlave::WriteAddressed==received){//master is sending its song
-                received = slave.read();
+            else if(I2CSlave::WriteAddressed==received) { //master is sending its song
+                do {
+                    received = slave.read();
+                    spkr=0.0;
+                    if(received == R) {
+                        spkr=0.0;
+                    }
+                    else{
+                        spkr.period(1/(notes[received]));
+                        spkr=.5;
+                    }
+                    lcd.cls();
+                    lcd.locate(0,0);
+                    lcd.printf("Received: %d",received);
+                } while(received != 0xFF);
                 lcd.cls();
                 lcd.locate(0,0);
-                lcd.printf("Sent: %d",received);
+                lcd.printf("done");
+                slave.stop();
             }
+            lcd.cls();
+            lcd.locate(0,0);
+            lcd.printf("%d",received);
 #endif
         }
     }