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uClock/examples/RP2040ClockBlink/RP2040ClockBlink.ino

93 lines
2.2 KiB

/* USB MIDI Sync Box - RP2040 example that just blinks LED
*
*
* This example code is in the public domain.
*
*/
//#define LED_BUILTIN PIN_LED_B
#include "Adafruit_TinyUSB.h"
#include <uClock.h>
uint8_t bpm_blink_timer = 1;
void handle_bpm_led(uint32_t tick)
{
// BPM led indicator
if ( !(tick % (96)) || (tick == 1) ) { // first compass step will flash longer
bpm_blink_timer = 8;
digitalWrite(LED_BUILTIN, LOW);
} else if ( !(tick % (24)) ) { // each quarter led on
bpm_blink_timer = 1;
digitalWrite(LED_BUILTIN, LOW);
} else if ( !(tick % bpm_blink_timer) ) { // get led off
digitalWrite(LED_BUILTIN, HIGH);
}
}
// Internal clock handlers
void onSync24Callback(uint32_t tick) {
handle_bpm_led(tick);
}
void onClockStart() {
//MIDI_USB.sendRealTime(midi::Start);
}
void onClockStop() {
//MIDI_USB.sendRealTime(midi::Stop);
}
void setup() {
/*#if defined(ARDUINO_ARCH_MBED) && defined(ARDUINO_ARCH_RP2040)
// Manual begin() is required on core without built-in support for TinyUSB such as mbed rp2040
TinyUSB_Device_Init(0);
#endif*/
//MIDI_USB.begin(MIDI_CHANNEL_OMNI);
// A led to count bpms
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, HIGH);
delay(500);
digitalWrite(LED_BUILTIN, LOW);
delay(500);
digitalWrite(LED_BUILTIN, HIGH);
delay(500);
digitalWrite(LED_BUILTIN, LOW);
delay(500);
Serial.begin(115200);
/*while (!Serial)
delay(1);*/
// Setup our clock system
// Inits the clock
uClock.init();
// Set the callback function for the clock output to send MIDI Sync message.
uClock.setOnSync24(onSync24Callback);
// Set the callback function for MIDI Start and Stop messages.
uClock.setOnClockStart(onClockStart);
uClock.setOnClockStop(onClockStop);
// Set the clock BPM to 126 BPM
uClock.setTempo(60);
// Starts the clock, tick-tac-tick-tac..
//Serial.println("about to uClock.start()..."); Serial.flush();
uClock.start();
//Serial.println("uClock.start()ed!"); Serial.flush();
}
uint32_t count = 0;
// Do it whatever to interface with Clock.stop(), Clock.start(), Clock.setTempo() and integrate your environment...
void loop() {
//MIDI_USB.read();
//count++;
//if (millis()%1000==0)
// Serial.println("looped!");
}