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tested midi example
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@ -263,7 +263,7 @@ void led_blinking_task(void)
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every 1000 ms
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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@ -154,7 +154,7 @@ void led_blinking_task(void)
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every 1000 ms
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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@ -30,6 +30,12 @@
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#include "bsp/board.h"
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#include "tusb.h"
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/* This MIDI example send sequence of note (on/off) repeatedly. To test on PC, you need to install
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* synth software and midi connection management software. On
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* - Linux (Ubuntu) : install qsynth, qjackctl. Then connect TinyUSB output port to FLUID Synth input port
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*
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*/
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF PROTYPES
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//--------------------------------------------------------------------+
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@ -48,6 +54,7 @@ enum {
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static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
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void led_blinking_task(void);
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void midi_task(void);
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/*------------- MAIN -------------*/
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int main(void)
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@ -62,6 +69,8 @@ int main(void)
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tud_task();
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led_blinking_task();
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midi_task();
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}
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return 0;
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@ -98,6 +107,49 @@ void tud_resume_cb(void)
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blink_interval_ms = BLINK_MOUNTED;
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}
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//--------------------------------------------------------------------+
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// MIDI Task
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//--------------------------------------------------------------------+
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// Variable that holds the current position in the sequence.
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uint32_t note_pos = 0;
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// Store example melody as an array of note values
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uint8_t note_sequence[] =
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{
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74,78,81,86,90,93,98,102,57,61,66,69,73,78,81,85,88,92,97,100,97,92,88,85,81,78,
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74,69,66,62,57,62,66,69,74,78,81,86,90,93,97,102,97,93,90,85,81,78,73,68,64,61,
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56,61,64,68,74,78,81,86,90,93,98,102
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};
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void midi_task(void)
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{
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static uint32_t start_ms = 0;
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// send note every 1000 ms
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if (board_millis() - start_ms < 286) return; // not enough time
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start_ms += 286;
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// Previous positions in the note sequence.
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int previous = note_pos - 1;
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// If we currently are at position 0, set the
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// previous position to the last note in the sequence.
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if (previous < 0) previous = sizeof(note_sequence) - 1;
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// Send Note On for current position at full velocity (127) on channel 1.
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tudi_midi_write24(0, 0x90, note_sequence[note_pos], 127);
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// Send Note Off for previous note.
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tudi_midi_write24(0, 0x80, note_sequence[previous], 0);
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// Increment position
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note_pos++;
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// If we are at the end of the sequence, start over.
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if (note_pos >= sizeof(note_sequence)) note_pos = 0;
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}
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//--------------------------------------------------------------------+
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// BLINKING TASK
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//--------------------------------------------------------------------+
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@ -106,7 +158,7 @@ void led_blinking_task(void)
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every 1000 ms
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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@ -106,7 +106,7 @@ void led_blinking_task(void)
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every 1000 ms
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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@ -169,7 +169,7 @@ void led_blinking_task(void)
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static bool led_state = false;
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// Blink every 1000 ms
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// Blink every interval ms
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if ( board_millis() - start_ms < interval_ms) return; // not enough time
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start_ms += interval_ms;
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@ -103,7 +103,7 @@ TU_ATTR_WEAK void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts);
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TU_ATTR_WEAK void tud_cdc_line_coding_cb(uint8_t itf, cdc_line_coding_t const* p_line_coding);
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//--------------------------------------------------------------------+
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// Application API (Interface0) Implementation
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// Inline Functions
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//--------------------------------------------------------------------+
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static inline bool tud_cdc_connected (void)
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{
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@ -60,6 +60,8 @@ void tud_midi_n_read_flush (uint8_t itf, uint8_t jack_id);
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uint32_t tud_midi_n_write (uint8_t itf, uint8_t jack_id, uint8_t const* buffer, uint32_t bufsize);
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bool tud_midi_n_write_flush (uint8_t itf);
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static inline uint32_t tud_midi_n_write24 (uint8_t itf, uint8_t jack_id, uint8_t b1, uint8_t b2, uint8_t b3);
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//--------------------------------------------------------------------+
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// Application API (Interface0)
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//--------------------------------------------------------------------+
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@ -68,6 +70,7 @@ static inline uint32_t tud_midi_available (void);
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static inline uint32_t tud_midi_read (void* buffer, uint32_t bufsize);
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static inline void tud_midi_read_flush (void);
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static inline uint32_t tud_midi_write (uint8_t jack_id, void const* buffer, uint32_t bufsize);
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static inline uint32_t tudi_midi_write24 (uint8_t jack_id, uint8_t b1, uint8_t b2, uint8_t b3);
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static inline bool tud_midi_write_flush (void);
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//--------------------------------------------------------------------+
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@ -76,8 +79,15 @@ static inline bool tud_midi_write_flush (void);
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TU_ATTR_WEAK void tud_midi_rx_cb(uint8_t itf);
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//--------------------------------------------------------------------+
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// Application API (Interface0) Implementation
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// Inline Functions
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//--------------------------------------------------------------------+
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static inline uint32_t tud_midi_n_write24 (uint8_t itf, uint8_t jack_id, uint8_t b1, uint8_t b2, uint8_t b3)
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{
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uint8_t msg[3] = { b1, b2, b3 };
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return tud_midi_n_write(itf, jack_id, msg, 3);
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}
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static inline bool tud_midi_connected (void)
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{
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return tud_midi_n_connected(0);
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@ -103,6 +113,12 @@ static inline uint32_t tud_midi_write (uint8_t jack_id, void const* buffer, uint
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return tud_midi_n_write(0, jack_id, buffer, bufsize);
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}
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static inline uint32_t tudi_midi_write24 (uint8_t jack_id, uint8_t b1, uint8_t b2, uint8_t b3)
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{
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uint8_t msg[3] = { b1, b2, b3 };
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return tud_midi_write(jack_id, msg, 3);
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}
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static inline bool tud_midi_write_flush (void)
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{
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return tud_midi_n_write_flush(0);
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