A lot of things happened today...

lab3/Makefile

@@ -13,7 +13,7 @@ GDB     = $(GCC_DIR)/msp430-elf-gdb
 CFLAGS = -I $(SUPPORT_FILE_DIRECTORY) -mmcu=$(DEVICE) -Os -g
 LFLAGS = -L $(SUPPORT_FILE_DIRECTORY) -T $(DEVICE).ld
 
-all: prog1 prog2 adc pwm dimmer tones
+all: prog1 prog2 adc pwm dimmer tones piano
 
 prog1: prog1.c
 	$(CC) $(CFLAGS) $(LFLAGS) $? -o prog1.elf
@@ -33,10 +33,13 @@ dimmer:   dimmer.c
 tones:   tones.c
 	$(CC) $(CFLAGS) $(LFLAGS) $? -o tones.elf
 	$(CC) $(CFLAGS) $(LFLAGS) $? -S -o tones.asm
+piano:   piano.c
+	$(CC) $(CFLAGS) $(LFLAGS) $? -o piano.elf
+	$(CC) $(CFLAGS) $(LFLAGS) $? -S -o piano.asm
 
 debug: all
 	$(GDB) ${EXEC}
 
 clean: 
 	rm prog1.elf prog1.asm prog2.elf prog2.asm adc.elf adc.asm \
-		pwm.elf pwm.asm dimmer.elf dimmer.asm tones.elf tones.asm
+		pwm.elf pwm.asm dimmer.elf dimmer.asm tones.elf tones.asm piano.elf piano.asm

lab3/piano.c

@@ -0,0 +1,97 @@
+#include "msp430.h"
+#include <stdlib.h>
+
+#define c     1000
+#define dflat 950
+#define d     900
+#define eflat 850
+#define e     800
+#define f     750
+#define gflat 720
+#define g     670
+#define aflat 625
+#define a     600
+#define bflat 570
+#define b     535
+#define cc    500
+#define n     0
+
+int hbd[30] = {
+    c,  n, c, 
+    d,  c, f,
+    e,  c, n, c,
+    d,  c, g,
+    f,  c, n, c,
+    cc, a, f,
+    e,  d, bflat, n, bflat,
+    a,  f, g,
+    f,  n
+};
+int hbd_lengths[30] = {
+    1, 1, 1, 
+    3, 3, 3, 
+    6, 1, 1, 1,
+    3, 3, 3, 
+    6, 1, 1, 1, 
+    3, 3, 3, 
+    3, 6, 1, 1, 1, 
+    3, 3, 3, 
+    6, 3
+};
+
+int scale[13] = {
+    c, dflat, d, eflat, e, f, gflat, g, aflat, a, bflat, b, cc
+};
+int scale_lengths[13] = {
+    2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
+};
+
+int whole[8] = {
+    c, d, e, f, g, a, b, cc
+};
+
+void play(int note) {
+    if (note != 0) {
+        CCR0 = note;
+        CCR1 = 100;
+    } else {
+        CCR1 = 0;
+    }
+}
+
+void sing(int* song, int* song_lengths, int length) {
+    for (int i = 0; i < length; i++) {
+        int note = song[i];
+        play(note);
+        for (int j = 0; j < song_lengths[i]; j++) {
+            __delay_cycles(0x3000);
+        }
+    }
+}
+
+void main(void) {
+    WDTCTL = WDTPW + WDTHOLD;    // Stop WDT
+  
+    P1DIR  = BIT6;               // set P1.6 to output
+    P1SEL |= BIT6;               // P1.6 to TA0.1
+  
+    CCTL1 = OUTMOD_7;            // CCR1 reset/set
+    TACTL = TASSEL_2 + MC_1;     // SMCLK, up mode
+    
+    int recording[10] = {n};
+    int recording_lengths[10] = {0};
+    int position = 1;
+    while(position < 10) {
+        if (whole[P1IN] != recording[position - 1]) {
+            recording[position] = whole[P1IN];
+            recording_lengths[position] = 1;
+            play(recording[position]);
+            position++;
+        }
+    }
+
+    sing(recording, recording_lengths, 10);
+    //clear();
+    //sing(hbd, hbd_lengths, 30);
+    //sing(scale, scale_lengths, 13);
+}

project/main.c

@@ -2,7 +2,8 @@
 
 #define   TXD       BIT2
 #define   RXD       BIT1
-#define   LED       BIT0
+#define   LED       BIT6
+#define   IN        BIT0
 
 #define   US        1000000
 
@@ -23,22 +24,46 @@ void main(void) {
   UCA0MCTL  = UCBRS0;           // Modulation UCBRSx = 1
   UCA0CTL1 &= ~UCSWRST;         // Initialize USCI state machine
 
+  ADC10CTL0 = ADC10SHT_2 + ADC10ON;   // ADC10ON
+  ADC10CTL1 = INCH_0;                 // input A1
+  ADC10AE0 |= 0x02;                   // PA.1 ADC option select
+
   P1DIR    |= TXD | LED;
+  P1DIR    &= ~IN;
   P1OUT    |= TXD;
+  P1IE     |=  IN;
 
   TACTL     = TACLR;            // reset clock
   TACTL     = TASSEL_2 | MC_2;  // set SMCLK timer to count up at 1 MHz
   TACCTL0   = CM1 | SCS | CAP | CCIE;   // set capture mode to rising edge and enable interrupts
   
+  //int voltage[1000];
+  //int time[1000];
   while (1) {
     TAR = 0;
+    ADC10CTL0 |= ENC + ADC10SC;     // Sampling and conversion start
+    while (ADC10CTL1 & ADC10BUSY);  // ADC10BUSY?
+    //voltage[i] = ADC10MEM;
+    //time[i]    = TAR;
+    TXByte = ADC10MEM;
+    while (!(IFG2 & UCA0TXIFG));
+    UCA0TXBUF = TXByte >> 2;
+    __delay_cycles(100000);
+    TAR = 0;
+
+
     P1OUT ^= LED;
-    __enable_interrupt();
-    __bis_SR_register(LPM0_bits + GIE);
-    TXByte = US/TACCR0;                 // frequency in Hertz
-    while (!(IFG2 & UCA0TXIFG));        // wait for TX buffer to be ready for new data
-    UCA0TXBUF = (TXByte - 110)/2;       // send range of 110 Hz (A below low C) to 621 Hz (D above high C)
-    __delay_cycles(100000);             // wait >10 ms before measuring again
+    //__enable_interrupt();
+    //P1IES &= ~IN;                     // interrupt on low to high
+    //__bis_SR_register(LPM0_bits + GIE);
+    //TAR = 0;
+    //P1IES |=  IN;                     // interrupt on high to low
+    //__bis_SR_register(LPM0_bits + GIE);
+
+    //TXByte = US/TACCR0;                 // frequency in Hertz
+    //while (!(IFG2 & UCA0TXIFG));        // wait for TX buffer to be ready for new data
+    //UCA0TXBUF = (TXByte - 110)/2;       // send range of 110 Hz (A below low C) to 621 Hz (D above high C)
+    //__delay_cycles(100000);             // wait >10 ms before measuring again
   }
 }
 
@@ -53,3 +78,17 @@ __interrupt void timer0_a0_isr(void)
   __disable_interrupt();                // disable interrupts
   __bic_SR_register_on_exit(LPM0_bits); // take us out of low power mode
 } 
+
+/*
+#if defined(__TI_COMPILER_VERSION__)
+#pragma vector=PORT1_VECTOR
+__interrupt void port1_isr(void)
+#else
+  void __attribute__ ((interrupt(PORT1_VECTOR))) port1_isr (void)
+#endif
+{
+  P1IFG = 0;
+  __disable_interrupt();                // disable interrupts
+  __bic_SR_register_on_exit(LPM0_bits); // take us out of low power mode
+}
+*/