mirror of https://github.com/midilab/uClock
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/* USB MIDI Sync Box
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*
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* This example demonstrates how to change the USB MIDI
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* device name on Teensy LC and 3.x. When creating more |
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* that one MIDI device, custom names are much easier to |
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* use when selecting each device in MIDI software on |
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* your PC or Mac. The custom name is in the "name.c" tab. |
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* |
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* Windows and Macintosh systems often cache USB info. |
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* After changing the name, you may need to test on a |
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* different computer to observe the new name, or take |
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* steps to get your operating system to "forget" the |
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* cached info. (TODO: wanted... can anyone contribute |
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* instructions for these systems) |
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*
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* You must select MIDI from the "Tools > USB Type" menu |
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*
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* This example code is in the public domain. |
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*/ |
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#include <uClock.h> |
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uint8_t bpm_blink_timer = 1; |
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void handle_bpm_led(uint32_t * tick) |
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{ |
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// BPM led indicator
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if ( !(*tick % (96)) || (*tick == 1) ) { // first compass step will flash longer
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bpm_blink_timer = 8; |
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digitalWrite(LED_BUILTIN, HIGH); |
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} else if ( !(*tick % (24)) ) { // each quarter led on
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digitalWrite(LED_BUILTIN, HIGH); |
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} else if ( !(*tick % bpm_blink_timer) ) { // get led off
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digitalWrite(LED_BUILTIN, LOW); |
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bpm_blink_timer = 1; |
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} |
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} |
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// Internal clock handlers
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void ClockOut96PPQN(uint32_t * tick) { |
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// Send MIDI_CLOCK to external gears
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usbMIDI.sendRealTime(usbMIDI.Clock); |
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handle_bpm_led(tick); |
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} |
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void onClockStart() { |
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usbMIDI.sendRealTime(usbMIDI.Start); |
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} |
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void onClockStop() { |
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usbMIDI.sendRealTime(usbMIDI.Stop); |
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} |
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void setup() { |
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// A led to count bpms
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pinMode(LED_BUILTIN, OUTPUT); |
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// Setup our clock system
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// drift for USB Teensy
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uClock.setDrift(1); |
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// Inits the clock
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uClock.init(); |
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// Set the callback function for the clock output to send MIDI Sync message.
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uClock.setClock96PPQNOutput(ClockOut96PPQN); |
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// Set the callback function for MIDI Start and Stop messages.
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uClock.setOnClockStartOutput(onClockStart);
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uClock.setOnClockStopOutput(onClockStop); |
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// Set the clock BPM to 126 BPM
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uClock.setTempo(126); |
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// Starts the clock, tick-tac-tick-tac...
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uClock.start(); |
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} |
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// Do it whatever to interface with Clock.stop(), Clock.start(), Clock.setTempo() and integrate your environment...
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void loop() { |
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} |
@ -0,0 +1,95 @@ |
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/* USB MIDI Sync Slave Box
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*
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* This example demonstrates how to change the USB MIDI
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* device name on Teensy LC and 3.x. When creating more |
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* that one MIDI device, custom names are much easier to |
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* use when selecting each device in MIDI software on |
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* your PC or Mac. The custom name is in the "name.c" tab. |
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* |
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* Windows and Macintosh systems often cache USB info. |
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* After changing the name, you may need to test on a |
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* different computer to observe the new name, or take |
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* steps to get your operating system to "forget" the |
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* cached info. (TODO: wanted... can anyone contribute |
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* instructions for these systems) |
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*
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* You must select MIDI from the "Tools > USB Type" menu |
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*
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* This example code is in the public domain. |
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*/ |
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#include <uClock.h> |
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uint8_t bpm_blink_timer = 1; |
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void handle_bpm_led(uint32_t * tick) |
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{ |
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// BPM led indicator
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if ( !(*tick % (96)) || (*tick == 1) ) { // first compass step will flash longer
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bpm_blink_timer = 8; |
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digitalWrite(LED_BUILTIN, HIGH); |
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} else if ( !(*tick % (24)) ) { // each quarter led on
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digitalWrite(LED_BUILTIN, HIGH); |
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} else if ( !(*tick % bpm_blink_timer) ) { // get led off
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digitalWrite(LED_BUILTIN, LOW); |
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bpm_blink_timer = 1; |
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} |
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} |
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// Internal clock handlers
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void ClockOut96PPQN(uint32_t * tick) { |
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// Send MIDI_CLOCK to external gears on other port?
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//usbMIDI.sendRealTime(usbMIDI.Clock);
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handle_bpm_led(tick); |
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} |
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void onClockStart() { |
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//usbMIDI.sendRealTime(usbMIDI.Start);
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} |
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void onClockStop() { |
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//usbMIDI.sendRealTime(usbMIDI.Stop);
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} |
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// External clock handlers
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void onExternalClock() |
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{ |
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uClock.clockMe(); |
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} |
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void onExternalStart() |
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{ |
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uClock.start(); |
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} |
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void onExternalStop() |
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{ |
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uClock.stop(); |
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} |
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void setup() { |
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// A led to count bpms
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pinMode(LED_BUILTIN, OUTPUT); |
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// Setup realtime midi event handlers
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usbMIDI.setHandleClock(onExternalClock); |
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usbMIDI.setHandleStart(onExternalStart); |
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usbMIDI.setHandleStop(onExternalStop); |
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// Setup our clock system
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// drift for USB Teensy
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uClock.setDrift(1); |
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// Inits the clock
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uClock.init(); |
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// Set the callback function for the clock output to send MIDI Sync message.
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uClock.setClock96PPQNOutput(ClockOut96PPQN); |
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// Set the callback function for MIDI Start and Stop messages.
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uClock.setOnClockStartOutput(onClockStart);
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uClock.setOnClockStopOutput(onClockStop); |
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// set to external sync mode
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uClock.setMode(1); |
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} |
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void loop() { |
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// Grab all midi data as fast as we can!
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while (usbMIDI.read()) {} |
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} |
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