From ece65dcc2a11b6f22eed9ce583075f82ca177064 Mon Sep 17 00:00:00 2001 From: Vineet K Date: Sun, 21 Apr 2024 20:46:46 -0400 Subject: [PATCH] play NES SMB Underground theme for testing --- notes.c | 213 +++++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 179 insertions(+), 34 deletions(-) diff --git a/notes.c b/notes.c index 7902efe..44b24c0 100644 --- a/notes.c +++ b/notes.c @@ -8,6 +8,9 @@ #include #include +#define F_CPU 16e6 +#include + #define T1_PRESCALAR 8 #define FREQ(f) (16e6 / f / T1_PRESCALAR / 2) @@ -18,8 +21,11 @@ #define P_TX 1 #define P_SPKR 2 +#define MARIO 50 + unsigned short freqs[] = { // PD3-7 +#if 0 FREQ(100), FREQ(200), FREQ(250), @@ -27,18 +33,74 @@ unsigned short freqs[] = { FREQ(350), // PB0-4 FREQ(400), +#else + FREQ(131), // middle c + FREQ(262), + FREQ(110), + FREQ(220), + FREQ(117), + FREQ(233), +#endif FREQ(500), - FREQ(600), - FREQ(700), - FREQ(750), + FREQ(6000), + FREQ(5000), + FREQ(5500), // PC0-4 - FREQ(1000), - FREQ(1250), - FREQ(1500), - FREQ(1750), - FREQ(2000), + FREQ(4000), + FREQ(7250), + FREQ(6500), + FREQ(5750), + FREQ(5000), + FREQ(5000), + FREQ(6000), + FREQ(7000), + FREQ(8000), + FREQ(8000), + FREQ(8000), + FREQ(8000), + FREQ(8000), - [32] = 0 // used as a 'silent' note + // notes + [MARIO] = FREQ(131), // C3 + FREQ(262), // C4 + FREQ(110), // A2 + FREQ(220), // A3 + FREQ(117), // Bb2 + FREQ(233), // Bb3 + + FREQ(87), + FREQ(175), + FREQ(73), + FREQ(147), + FREQ(78), + FREQ(156), + + FREQ(156), + FREQ(147), + FREQ(139), + FREQ(131), + FREQ(156), + FREQ(147), + FREQ(104), + FREQ(98), + FREQ(139), + + FREQ(156), + FREQ(185), + FREQ(175), + FREQ(165), + FREQ(233), + FREQ(220), + FREQ(208), + FREQ(156), + FREQ(123), + FREQ(123), + FREQ(110), + FREQ(104), + + ['"'] = FREQ(16000), + + [255] = 0 // used as a 'silent' note }; unsigned char note = 0; // 0 = buttons write note+cycles+\xff to UART @@ -108,6 +170,36 @@ usart_read(void) return UDR0; } +void +playtone(void) +{ + // Prepare Timer/Counter + TCNT1 = 1; + OCR1A = freqs[note]; + TCCR1B |= 1 << CS11; + + // Monitor OutPut Compare Flag + while ((TIFR1 & (1 << OCF1A)) == 0); + + // Toggles port For Speaker + PORTD ^= 1 << P_SPKR; + TIFR1 |= 1 << OCF1A; + TCCR1B &= ~(1 << CS11); +} + +void +play_note(unsigned char _note, unsigned short _cycles) +{ + note = _note; + + if (note != 255) { + for (unsigned short i = 0; i < _cycles; i++) + playtone(); + } else { + _delay_ms(_cycles); + } +} + int main(void) { @@ -139,7 +231,7 @@ main(void) usart_send(mode); } // check if any buttons are pressed, otherwise don't play a note - if (mode != '1' && ((PINB & PCMSK0) | (PINC & PCMSK1) | (PIND & PCMSK2)) == 0) { + if (mode == '0' && ((PINB & PCMSK0) | (PINC & PCMSK1) | (PIND & PCMSK2)) == 0) { // if a button was released, then send note and cycles played if (cycles > 0) { usart_send(tmp); @@ -152,23 +244,14 @@ main(void) } if (mode == '0') { - // Prepare Timer/Counter - TCNT1 = 1; tmp = note; - OCR1A = freqs[note]; - TCCR1B |= 1 << CS11; - // Monitor OutPut Compare Flag - while ((TIFR1 & (1 << OCF1A)) == 0); + playtone(); - // Toggles port For Speaker - PORTD ^= 1 << P_SPKR; - TIFR1 |= 1 << OCF1A; - TCCR1B &= ~(1 << CS11); cycles = (cycles + 1) % 0xffff; } else if (mode == '1') { note = usart_read(); - if (note >= '0') note -= '0'; + if (note >= 'Z') note -= '0'; tmp = usart_read(); cycles = tmp << 8; tmp = usart_read(); @@ -176,26 +259,88 @@ main(void) tmp = usart_read(); // reset to default mode when an invalid note is read - if (tmp != 'z' || note > '@') { + if (tmp != 'z' || note >= '|') { mode = '0'; continue; } - for (unsigned short i = 0; i < cycles; i++) { - usart_send(HIGH(cycles)); - usart_send(LOW(cycles)); - usart_send(0); + for (unsigned short i = 0; i < cycles; i++) + playtone(); + } else if (mode == '2') { + play_note(MARIO + 0, 131 * 0.3); + play_note(MARIO + 1, 262 * 0.3); + play_note(MARIO + 2, 110 * 0.3); + play_note(MARIO + 3, 220 * 0.3); + play_note(MARIO + 4, 117 * 0.3); + play_note(MARIO + 5, 233 * 0.3); + play_note(255, 1800); + play_note(MARIO + 0, 131 * 0.3); + play_note(MARIO + 1, 262 * 0.3); + play_note(MARIO + 2, 110 * 0.3); + play_note(MARIO + 3, 220 * 0.3); + play_note(MARIO + 4, 117 * 0.3); + play_note(MARIO + 5, 233 * 0.3); + play_note(255, 1800); - TCNT1 = 1; - OCR1A = freqs[note]; - TCCR1B |= 1 << CS11; + play_note(MARIO + 6, 87 * 0.3); + play_note(MARIO + 7, 175 * 0.3); + play_note(MARIO + 8, 73 * 0.3); + play_note(MARIO + 9, 147 * 0.3); + play_note(MARIO + 10, 78 * 0.3); + play_note(MARIO + 11, 156 * 0.3); + play_note(255, 1800); + play_note(MARIO + 6, 87 * 0.3); + play_note(MARIO + 7, 175 * 0.3); + play_note(MARIO + 8, 73 * 0.3); + play_note(MARIO + 9, 147 * 0.3); + play_note(MARIO + 10, 78 * 0.3); + play_note(MARIO + 11, 156 * 0.3); + play_note(255, 1800); - while ((TIFR1 & (1 << OCF1A)) == 0); + play_note(MARIO + 12, 156 * 0.3); + play_note(255, 25); + play_note(MARIO + 13, 147 * 0.3); + play_note(255, 25); + play_note(MARIO + 14, 139 * 0.3); + play_note(255, 25); + play_note(MARIO + 15, 131 * 0.6); + play_note(255, 25); + play_note(MARIO + 16, 156 * 0.3); + play_note(255, 25); + play_note(MARIO + 17, 147 * 0.6); + play_note(255, 25); + play_note(MARIO + 18, 104 * 0.6); + play_note(255, 25); + play_note(MARIO + 19, 98 * 0.6); + play_note(255, 25); + play_note(MARIO + 20, 139 * 0.6); - PORTD ^= 1 << P_SPKR; - TIFR1 |= 1 << OCF1A; - TCCR1B &= ~(1 << CS11); - } + play_note(MARIO + 21, 156 * 0.3); + play_note(255, 25); + play_note(MARIO + 22, 185 * 0.3); + play_note(255, 25); + play_note(MARIO + 23, 175 * 0.3); + play_note(255, 25); + play_note(MARIO + 24, 165 * 0.3); + play_note(255, 25); + play_note(MARIO + 25, 233 * 0.3); + play_note(255, 25); + play_note(MARIO + 26, 220 * 0.3); + play_note(255, 25); + play_note(MARIO + 27, 208 * 0.6); + play_note(255, 25); + play_note(MARIO + 28, 156 * 0.6); + play_note(255, 25); + play_note(MARIO + 29, 123 * 0.6); + play_note(255, 25); + play_note(MARIO + 30, 123 * 0.6); + play_note(255, 25); + play_note(MARIO + 31, 110 * 0.6); + play_note(255, 25); + play_note(MARIO + 32, 104 * 0.6); + play_note(255, 25); + + play_note(255, 3600); } } }