testing serial uart for midi

examples/ESP32UartMasterMidiClock/ESP32UartMasterMidiClock.ino

@@ -1,6 +1,6 @@
-/* USB MIDI Sync Box
+/* Uart MIDI Sync Box
  *  
- * This example demonstrates how to change the USB MIDI 
+ * This example demonstrates how to change the Uart MIDI 
  * device name on ESP32 family. 
  * 
  * This example code is in the public domain.
@@ -8,17 +8,15 @@
  * ...
  * 
  */
-//#include <Adafruit_TinyUSB.h>
-//#include <MIDI.h>
-
-//Adafruit_USBD_MIDI usb_midi;
-//MIDI_CREATE_INSTANCE(Adafruit_USBD_MIDI, usb_midi, MIDI_USB);
-
-//MIDI_CREATE_INSTANCE(HardwareSerial, Serial1, MIDI);
 #include <uClock.h>
 
+// MIDI clock, start and stop byte definitions - based on MIDI 1.0 Standards.
+#define MIDI_CLOCK 0xF8
+#define MIDI_START 0xFA
+#define MIDI_STOP  0xFC
+
 // the blue led
-int LED_BUILTIN = 2;
+#define LED_BUILTIN    2
 
 uint8_t bpm_blink_timer = 1;
 void handle_bpm_led(uint32_t tick)
@@ -38,20 +36,21 @@ void handle_bpm_led(uint32_t tick)
 // Internal clock handlers
 void ClockOut96PPQN(uint32_t tick) {
   // Send MIDI_CLOCK to external gears
-  //MIDI_USB.sendRealTime(midi::Clock);
+  //Serial.write(MIDI_CLOCK);
   handle_bpm_led(tick);
 }
 
 void onClockStart() {
-  //MIDI_USB.sendRealTime(midi::Start);
+  Serial.write(MIDI_START);
 }
 
 void onClockStop() {
-  //MIDI_USB.sendRealTime(midi::Stop);
+  Serial.write(MIDI_STOP);
 }
 
 void setup() {
-  //MIDI_USB.begin(MIDI_CHANNEL_OMNI);
+  // Initialize serial communication at 31250 bits per second, the default MIDI serial speed communication:
+  Serial.begin(31250);
 
   // A led to count bpms
   pinMode(LED_BUILTIN, OUTPUT);

examples/ESP32UsbMasterMidiClock/debug.cfg

@@ -1,14 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-or-later
-#
-# Example OpenOCD configuration file for ESP32-WROVER-KIT board.
-#
-# For example, OpenOCD can be started for ESP32 debugging on
-#
-#   openocd -f board/esp32-wrover-kit-3.3v.cfg
-#
-
-# Source the JTAG interface configuration file
-source [find interface/ftdi/esp32_devkitj_v1.cfg]
-set ESP32_FLASH_VOLTAGE 3.3
-# Source the ESP32 configuration file
-source [find target/esp32.cfg]

examples/ESP32UsbMasterMidiClock/debug_custom.json

@@ -1,19 +0,0 @@
-{
-	"name":"Arduino on ESP32",
-	"toolchainPrefix":"xtensa-esp32-elf",
-	"svdFile":"esp32.svd",
-	"request":"attach",
-	"postAttachCommands":[
-		"set remote hardware-watchpoint-limit 2",
-		"monitor reset halt",
-		"monitor gdb_sync",
-		"thb setup",
-		"c"
-	],
-	"overrideRestartCommands":[
-		"monitor reset halt",
-		"monitor gdb_sync",
-		"thb setup",
-		"c"
-	]
-}

src/uClock.cpp

@@ -27,15 +27,16 @@
  */
 #include "uClock.h"
 
-// 
 // Timer setup for work clock
 //
-// all non-avr timmers setup
 // Teensyduino port
+//
 #if defined(TEENSYDUINO)
 	IntervalTimer _uclockTimer;
 #endif
+//
 // Seedstudio XIAO M0 port
+//
 #if defined(SEEED_XIAO_M0)
 	// 24 bits timer
 	#include <TimerTCC0.h>
@@ -44,9 +45,12 @@ IntervalTimer _uclockTimer;
 	//#include <TimerTC3.h>
 	// uses TimerTc3
 #endif
+//
 // ESP32 family
+//
 #if defined(ARDUINO_ARCH_ESP32) || defined(ESP32)
 	hw_timer_t * _uclockTimer = NULL;
+	#define TIMER_ID	0
 #endif
 
 #if defined(ARDUINO_ARCH_AVR)
@@ -93,7 +97,7 @@ void uclockInitTimer()
 	#endif
 
 	#if defined(ARDUINO_ARCH_ESP32) || defined(ESP32)
-		_uclockTimer = timerBegin(0, 80, true);
+		_uclockTimer = timerBegin(TIMER_ID, 80, true);
 
 		// attach to generic uclock ISR
 		timerAttachInterrupt(_uclockTimer, &uclockISR, true);