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It works!

This commit is contained in:
Jonathan Chan 2018-03-15 23:54:34 -07:00
parent 1e7089feae
commit e9f0377b1c
2 changed files with 767 additions and 714 deletions
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1341
lab3/piano.asm
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128
lab3/piano.c
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@ -1,5 +1,6 @@
#include "msp430.h" #include "msp430.h"
#include <stdlib.h> #include <stdlib.h>
#include <stdbool.h>
#define c 3822 #define c 3822
#define dflat 3608 #define dflat 3608
@ -16,91 +17,83 @@
#define cc 1911 #define cc 1911
#define n 0 #define n 0
unsigned int hbd[30] = { #define LED1 BIT0
c, n, c, #define BUTTON BIT3
d, c, f, #define OUTPUT BIT6
e, c, n, c,
d, c, g, // CSINT should be 256^2 / 10 000 = 65 536 / 10 000 = 6
f, c, n, c, // USINT should be 60 000
cc, a, f, #define CSUS 10000 // CSUS microseconds (us) in a centisecond (cs)
e, d, bflat, n, bflat, #define CSINT 6 // centiseconds storable in int of microseconds
a, f, g, #define USINT 60000 // CSINT in microseconds
f, n
}; #define MAXNOTES 64 // record at most 64 notes (arbitrary)
unsigned int hbd_lengths[30] = {
1, 1, 1, volatile bool recording = true;
3, 3, 3, volatile unsigned int us = 0;
6, 1, 1, 1, volatile unsigned int cs = 0;
3, 3, 3,
6, 1, 1, 1,
3, 3, 3,
3, 6, 1, 1, 1,
3, 3, 3,
6, 3
};
unsigned int scale[13] = { unsigned int scale[13] = {
c, dflat, d, eflat, e, f, gflat, g, aflat, a, bflat, b, cc c, dflat, d, eflat, e, f, gflat, g, aflat, a, bflat, b, cc
}; };
unsigned int scale_lengths[13] = {
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2
};
unsigned int whole[8] = { unsigned int whole[8] = {
c, d, e, f, g, a, b, cc c, d, e, f, g, a, b, cc
}; };
void play(unsigned int note) { void play(unsigned int note) {
if (note != 0) {
CCR0 = note; CCR0 = note;
CCR1 = 100; CCR1 = note == n ? 0 : 100;
} else {
CCR1 = 0;
}
} }
void sing(unsigned int* song, unsigned int* song_lengths, unsigned int length) { void sing(unsigned int* song, unsigned int* lengths, unsigned int length) {
for (int i = 0; i < length; i++) { for (int i = 0; i < length; i++) {
play(song[i]); play(song[i]);
for (int j = 0; j < song_lengths[i]; j++) { for (int j = 0; j < lengths[i]; j++) {
__delay_cycles(0x200); __delay_cycles(CSUS);
} }
} }
} }
unsigned int us = 0; unsigned int record(unsigned int* song, unsigned int* lengths) {
unsigned int cs = 0; unsigned int pos = 1;
unsigned int note;
TAR = 0;
P1OUT |= LED1;
while (recording) {
note = whole[P2IN & 0xF];
if (note != song[pos - 1]) {
lengths[pos - 1] = cs + (us + TAR)/CSUS;
song[pos] = note;
play(note);
cs = us = TAR = 0;
pos++;
}
__delay_cycles(0x200);
}
P1OUT &= ~LED1;
return pos;
}
void main(void) { void main(void) {
WDTCTL = WDTPW + WDTHOLD; // Stop WDT WDTCTL = WDTPW + WDTHOLD; // Stop WDT
P1DIR = BIT6; // set P1.6 to output P2DIR = 0; // P2 all input
P1SEL |= BIT6; // P1.6 to TA0.1 P1DIR = OUTPUT | LED1; // P1.6, P1.0 output (P1.3 input)
P1SEL |= OUTPUT; // P1.6 to TA0.1
P1REN = BUTTON; // button resistor pullup/pulldown
P1IE = BUTTON; // enable button interrupt
CCTL1 = OUTMOD_7; // CCR1 reset/set CCTL1 = OUTMOD_7; // CCR1 reset/set
TACTL = TASSEL_2 | MC_1; // SMCLK, up to CCR0 TACTL = TASSEL_2 | MC_1; // SMCLK (1 MHz) count up to CCRO
TACCTL0 = CCIE; // enable interrupt TACCTL0 = CCIE; // enable clock interrupt
__enable_interrupt(); __enable_interrupt();
unsigned int rec[10] = {n, b, b, b, b, b, b, b, b, b}; unsigned int rec[MAXNOTES];
unsigned int rec_len[10] = {1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; unsigned int len[MAXNOTES];
unsigned int position = 1; unsigned int length = record(rec, len);
TAR = 0; sing(rec, len, length);
while (position < 10) {
if (whole[P1IN & 0xF] != rec[position - 1]) {
rec_len[position - 1] = cs + (us + TAR)/10000;
rec[position] = whole[P1IN & 0xF];
play(rec[position]);
cs = us = TAR = 0;
position++;
}
__delay_cycles(0x200);
}
sing(rec, rec_len, 10);
//clear();
//sing(hbd, hbd_lengths, 30);
//sing(scale, scale_lengths, 13);
} }
#if defined(__TI_COMPILER_VERSION__) #if defined(__TI_COMPILER_VERSION__)
@ -110,12 +103,25 @@ __interrupt void timer0_a0_isr(void)
void __attribute__ ((interrupt(TIMER0_A0_VECTOR))) timer0_a0_isr (void) void __attribute__ ((interrupt(TIMER0_A0_VECTOR))) timer0_a0_isr (void)
#endif #endif
{ {
unsigned int us_left = 60000 - us; // count up to 60 000 microseconds in us unsigned int us_left = USINT - us; // count up to USINT microseconds in us
if (us_left > TACCR0) { if (us_left < TACCR0) {
cs += 6; // add six centiseconds to count cs += CSINT; // add centiseconds to count
us = TACCR0 - us_left; // save overflow us = TACCR0 - us_left; // save overflow
} else { } else {
us += TACCR0; us += TACCR0;
} }
TACCTL0 &= ~CCIFG; // set interrupt flag to 0 TACCTL0 &= ~CCIFG; // set interrupt flag to 0
} }
#if defined(__TI_COMPILER_VERSION__)
#pragma vector=PORT1_VECTOR
__interrupt void port1_isr(void)
#else
void __attribute__ ((interrupt(PORT1_VECTOR))) port1_isr (void)
#endif
{
recording = false; // stop recording
P1OUT ^= BIT0;
P1IFG &= ~BIT3; // set interrupt flag to 0
P1IE &= ~BIT3; // disable interrupts for button
}