added midi example device

git-svn-id: https://svn.spreadspace.org/avr/trunk@251 aa12f405-d877-488e-9caf-2d797e2a1cc7

4 files changed, 586 insertions, 0 deletions

diff --git a/lib/lufa-descriptor-midi.c b/lib/lufa-descriptor-midi.c
new file mode 100644
index 0000000..ee5e6c3
--- /dev/null
+++ b/lib/lufa-descriptor-midi.c
@@ -0,0 +1,337 @@
+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2012.

+

+  dean [at] fourwalledcubicle [dot] com

+           www.lufa-lib.org

+*/

+

+/*

+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, distribute, and sell this

+  software and its documentation for any purpose is hereby granted

+  without fee, provided that the above copyright notice appear in

+  all copies and that both that the copyright notice and this

+  permission notice and warranty disclaimer appear in supporting

+  documentation, and that the name of the author not be used in

+  advertising or publicity pertaining to distribution of the

+  software without specific, written prior permission.

+

+  The author disclaim all warranties with regard to this

+  software, including all implied warranties of merchantability

+  and fitness.  In no event shall the author be liable for any

+  special, indirect or consequential damages or any damages

+  whatsoever resulting from loss of use, data or profits, whether

+  in an action of contract, negligence or other tortious action,

+  arising out of or in connection with the use or performance of

+  this software.

+*/

+

+/** \file

+ *

+ *  USB Device Descriptors, for library use when in USB device mode. Descriptors are special

+ *  computer-readable structures which the host requests upon device enumeration, to determine

+ *  the device's capabilities and functions.

+ */

+

+#include "lufa-descriptor-midi.h"

+

+/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall

+ *  device characteristics, including the supported USB version, control endpoint size and the

+ *  number of device configurations. The descriptor is read out by the USB host when the enumeration

+ *  process begins.

+ */

+const USB_Descriptor_Device_t PROGMEM DeviceDescriptor =

+{

+	.Header                 = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},

+

+	.USBSpecification       = VERSION_BCD(01.10),

+	.Class                  = USB_CSCP_NoDeviceClass,

+	.SubClass               = USB_CSCP_NoDeviceSubclass,

+	.Protocol               = USB_CSCP_NoDeviceProtocol,

+

+	.Endpoint0Size          = FIXED_CONTROL_ENDPOINT_SIZE,

+

+	.VendorID               = 0x03EB,

+	.ProductID              = 0x2048,

+	.ReleaseNumber          = VERSION_BCD(00.01),

+

+	.ManufacturerStrIndex   = 0x01,

+	.ProductStrIndex        = 0x02,

+	.SerialNumStrIndex      = NO_DESCRIPTOR,

+

+	.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS

+};

+

+/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage

+ *  of the device in one of its supported configurations, including information about any device interfaces

+ *  and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting

+ *  a configuration so that the host may correctly communicate with the USB device.

+ */

+const USB_Descriptor_Configuration_t PROGMEM ConfigurationDescriptor =

+{

+	.Config =

+		{

+			.Header                   = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},

+

+			.TotalConfigurationSize   = sizeof(USB_Descriptor_Configuration_t),

+			.TotalInterfaces          = 2,

+

+			.ConfigurationNumber      = 1,

+			.ConfigurationStrIndex    = NO_DESCRIPTOR,

+

+			.ConfigAttributes         = (USB_CONFIG_ATTR_RESERVED | USB_CONFIG_ATTR_SELFPOWERED),

+

+			.MaxPowerConsumption      = USB_CONFIG_POWER_MA(100)

+		},

+

+	.Audio_ControlInterface =

+		{

+			.Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},

+

+			.InterfaceNumber          = 0,

+			.AlternateSetting         = 0,

+

+			.TotalEndpoints           = 0,

+

+			.Class                    = AUDIO_CSCP_AudioClass,

+			.SubClass                 = AUDIO_CSCP_ControlSubclass,

+			.Protocol                 = AUDIO_CSCP_ControlProtocol,

+

+			.InterfaceStrIndex        = NO_DESCRIPTOR

+		},

+

+	.Audio_ControlInterface_SPC =

+		{

+			.Header                   = {.Size = sizeof(USB_Audio_Descriptor_Interface_AC_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_Header,

+

+			.ACSpecification          = VERSION_BCD(01.00),

+			.TotalLength              = sizeof(USB_Audio_Descriptor_Interface_AC_t),

+

+			.InCollection             = 1,

+			.InterfaceNumber          = 1,

+		},

+

+	.Audio_StreamInterface =

+		{

+			.Header                   = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},

+

+			.InterfaceNumber          = 1,

+			.AlternateSetting         = 0,

+

+			.TotalEndpoints           = 2,

+

+			.Class                    = AUDIO_CSCP_AudioClass,

+			.SubClass                 = AUDIO_CSCP_MIDIStreamingSubclass,

+			.Protocol                 = AUDIO_CSCP_StreamingProtocol,

+

+			.InterfaceStrIndex        = NO_DESCRIPTOR

+		},

+

+	.Audio_StreamInterface_SPC =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_AudioInterface_AS_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_General,

+

+			.AudioSpecification       = VERSION_BCD(01.00),

+

+			.TotalLength              = (sizeof(USB_Descriptor_Configuration_t) -

+			                             offsetof(USB_Descriptor_Configuration_t, Audio_StreamInterface_SPC))

+		},

+

+	.MIDI_In_Jack_Emb =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,

+

+			.JackType                 = MIDI_JACKTYPE_Embedded,

+			.JackID                   = 0x01,

+

+			.JackStrIndex             = NO_DESCRIPTOR

+		},

+

+	.MIDI_In_Jack_Ext =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_InputJack_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_InputTerminal,

+

+			.JackType                 = MIDI_JACKTYPE_External,

+			.JackID                   = 0x02,

+

+			.JackStrIndex             = NO_DESCRIPTOR

+		},

+

+	.MIDI_Out_Jack_Emb =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,

+

+			.JackType                 = MIDI_JACKTYPE_Embedded,

+			.JackID                   = 0x03,

+

+			.NumberOfPins             = 1,

+			.SourceJackID             = {0x02},

+			.SourcePinID              = {0x01},

+

+			.JackStrIndex             = NO_DESCRIPTOR

+		},

+

+	.MIDI_Out_Jack_Ext =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_OutputJack_t), .Type = DTYPE_CSInterface},

+			.Subtype                  = AUDIO_DSUBTYPE_CSInterface_OutputTerminal,

+

+			.JackType                 = MIDI_JACKTYPE_External,

+			.JackID                   = 0x04,

+

+			.NumberOfPins             = 1,

+			.SourceJackID             = {0x01},

+			.SourcePinID              = {0x01},

+

+			.JackStrIndex             = NO_DESCRIPTOR

+		},

+

+	.MIDI_In_Jack_Endpoint =

+		{

+			.Endpoint =

+				{

+					.Header              = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},

+

+					.EndpointAddress     = (ENDPOINT_DIR_OUT | MIDI_STREAM_OUT_EPNUM),

+					.Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),

+					.EndpointSize        = MIDI_STREAM_EPSIZE,

+					.PollingIntervalMS   = 0x01

+				},

+

+			.Refresh                  = 0,

+			.SyncEndpointNumber       = 0

+		},

+

+	.MIDI_In_Jack_Endpoint_SPC =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_Jack_Endpoint_t), .Type = DTYPE_CSEndpoint},

+			.Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,

+

+			.TotalEmbeddedJacks       = 0x01,

+			.AssociatedJackID         = {0x01}

+		},

+

+	.MIDI_Out_Jack_Endpoint =

+		{

+			.Endpoint =

+				{

+					.Header              = {.Size = sizeof(USB_Audio_Descriptor_StreamEndpoint_Std_t), .Type = DTYPE_Endpoint},

+

+					.EndpointAddress     = (ENDPOINT_DIR_IN | MIDI_STREAM_IN_EPNUM),

+					.Attributes          = (EP_TYPE_BULK | ENDPOINT_ATTR_NO_SYNC | ENDPOINT_USAGE_DATA),

+					.EndpointSize        = MIDI_STREAM_EPSIZE,

+					.PollingIntervalMS   = 0x01

+				},

+

+			.Refresh                  = 0,

+			.SyncEndpointNumber       = 0

+		},

+

+	.MIDI_Out_Jack_Endpoint_SPC =

+		{

+			.Header                   = {.Size = sizeof(USB_MIDI_Descriptor_Jack_Endpoint_t), .Type = DTYPE_CSEndpoint},

+			.Subtype                  = AUDIO_DSUBTYPE_CSEndpoint_General,

+

+			.TotalEmbeddedJacks       = 0x01,

+			.AssociatedJackID         = {0x03}

+		}

+};

+

+/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests

+ *  the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate

+ *  via the language ID table available at USB.org what languages the device supports for its string descriptors.

+ */

+const USB_Descriptor_String_t PROGMEM LanguageString =

+{

+	.Header                 = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},

+

+	.UnicodeString          = {LANGUAGE_ID_ENG}

+};

+

+/** Manufacturer descriptor string. This is a Unicode string containing the manufacturer's details in human readable

+ *  form, and is read out upon request by the host when the appropriate string ID is requested, listed in the Device

+ *  Descriptor.

+ */

+const USB_Descriptor_String_t PROGMEM ManufacturerString =

+{

+	.Header                 = {.Size = USB_STRING_LEN(11), .Type = DTYPE_String},

+

+#ifndef USB_MANUFACTURER

+	.UnicodeString          = L"Dean Camera"

+#else

+	.UnicodeString          = USB_MANUFACTURER

+#endif

+};

+

+/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,

+ *  and is read out upon request by the host when the appropriate string ID is requested, listed in the Device

+ *  Descriptor.

+ */

+const USB_Descriptor_String_t PROGMEM ProductString =

+{

+	.Header                 = {.Size = USB_STRING_LEN(14), .Type = DTYPE_String},

+

+#ifndef USB_PRODUCT

+	.UnicodeString          = L"LUFA MIDI Demo"

+#else

+	.UnicodeString          = USB_PRODUCT

+#endif

+};

+

+/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"

+ *  documentation) by the application code so that the address and size of a requested descriptor can be given

+ *  to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function

+ *  is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the

+ *  USB host.

+ */

+uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,

+                                    const uint8_t wIndex,

+                                    const void** const DescriptorAddress)

+{

+	const uint8_t  DescriptorType   = (wValue >> 8);

+	const uint8_t  DescriptorNumber = (wValue & 0xFF);

+

+	const void* Address = NULL;

+	uint16_t    Size    = NO_DESCRIPTOR;

+

+	switch (DescriptorType)

+	{

+		case DTYPE_Device:

+			Address = &DeviceDescriptor;

+			Size    = sizeof(USB_Descriptor_Device_t);

+			break;

+		case DTYPE_Configuration:

+			Address = &ConfigurationDescriptor;

+			Size    = sizeof(USB_Descriptor_Configuration_t);

+			break;

+		case DTYPE_String:

+			switch (DescriptorNumber)

+			{

+				case 0x00:

+					Address = &LanguageString;

+					Size    = pgm_read_byte(&LanguageString.Header.Size);

+					break;

+				case 0x01:

+					Address = &ManufacturerString;

+					Size    = pgm_read_byte(&ManufacturerString.Header.Size);

+					break;

+				case 0x02:

+					Address = &ProductString;

+					Size    = pgm_read_byte(&ProductString.Header.Size);

+					break;

+			}

+

+			break;

+	}

+

+	*DescriptorAddress = Address;

+	return Size;

+}

+

diff --git a/lib/lufa-descriptor-midi.h b/lib/lufa-descriptor-midi.h
new file mode 100644
index 0000000..592ac9f
--- /dev/null
+++ b/lib/lufa-descriptor-midi.h
@@ -0,0 +1,87 @@
+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2012.

+

+  dean [at] fourwalledcubicle [dot] com

+           www.lufa-lib.org

+*/

+

+/*

+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)

+

+  Permission to use, copy, modify, distribute, and sell this

+  software and its documentation for any purpose is hereby granted

+  without fee, provided that the above copyright notice appear in

+  all copies and that both that the copyright notice and this

+  permission notice and warranty disclaimer appear in supporting

+  documentation, and that the name of the author not be used in

+  advertising or publicity pertaining to distribution of the

+  software without specific, written prior permission.

+

+  The author disclaim all warranties with regard to this

+  software, including all implied warranties of merchantability

+  and fitness.  In no event shall the author be liable for any

+  special, indirect or consequential damages or any damages

+  whatsoever resulting from loss of use, data or profits, whether

+  in an action of contract, negligence or other tortious action,

+  arising out of or in connection with the use or performance of

+  this software.

+*/

+

+/** \file

+ *

+ *  Header file for Descriptors.c.

+ */

+

+#ifndef _DESCRIPTORS_H_

+#define _DESCRIPTORS_H_

+

+	/* Includes: */

+		#include <LUFA/Drivers/USB/USB.h>

+

+		#include <avr/pgmspace.h>

+

+	/* Macros: */

+		/** Endpoint number of the MIDI streaming data IN endpoint, for device-to-host data transfers. */

+		#define MIDI_STREAM_IN_EPNUM        2

+

+		/** Endpoint number of the MIDI streaming data OUT endpoint, for host-to-device data transfers. */

+		#define MIDI_STREAM_OUT_EPNUM       1

+

+		/** Endpoint size in bytes of the Audio isochronous streaming data IN and OUT endpoints. */

+		#define MIDI_STREAM_EPSIZE          64

+

+	/* Type Defines: */

+		/** Type define for the device configuration descriptor structure. This must be defined in the

+		 *  application code, as the configuration descriptor contains several sub-descriptors which

+		 *  vary between devices, and which describe the device's usage to the host.

+		 */

+		typedef struct

+		{

+			USB_Descriptor_Configuration_Header_t     Config;

+

+			// MIDI Audio Control Interface

+			USB_Descriptor_Interface_t                Audio_ControlInterface;

+			USB_Audio_Descriptor_Interface_AC_t       Audio_ControlInterface_SPC;

+

+			// MIDI Audio Streaming Interface

+			USB_Descriptor_Interface_t                Audio_StreamInterface;

+			USB_MIDI_Descriptor_AudioInterface_AS_t   Audio_StreamInterface_SPC;

+			USB_MIDI_Descriptor_InputJack_t           MIDI_In_Jack_Emb;

+			USB_MIDI_Descriptor_InputJack_t           MIDI_In_Jack_Ext;

+			USB_MIDI_Descriptor_OutputJack_t          MIDI_Out_Jack_Emb;

+			USB_MIDI_Descriptor_OutputJack_t          MIDI_Out_Jack_Ext;

+			USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_In_Jack_Endpoint;

+			USB_MIDI_Descriptor_Jack_Endpoint_t       MIDI_In_Jack_Endpoint_SPC;

+			USB_Audio_Descriptor_StreamEndpoint_Std_t MIDI_Out_Jack_Endpoint;

+			USB_MIDI_Descriptor_Jack_Endpoint_t       MIDI_Out_Jack_Endpoint_SPC;

+		} USB_Descriptor_Configuration_t;

+

+	/* Function Prototypes: */

+		uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,

+		                                    const uint8_t wIndex,

+		                                    const void** const DescriptorAddress)

+		                                    ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);

+

+#endif

+

diff --git a/usb-midi/Makefile b/usb-midi/Makefile
new file mode 100644
index 0000000..08bbdb8
--- /dev/null
+++ b/usb-midi/Makefile
@@ -0,0 +1,44 @@
+##

+##  spreadspace avr utils

+##

+##

+##  Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>

+##

+##  This file is part of spreadspace avr utils.

+##

+##  spreadspace avr utils is free software: you can redistribute it and/or modify

+##  it under the terms of the GNU General Public License as published by

+##  the Free Software Foundation, either version 3 of the License, or

+##  any later version.

+##

+##  spreadspace avr utils is distributed in the hope that it will be useful,

+##  but WITHOUT ANY WARRANTY; without even the implied warranty of

+##  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+##  GNU General Public License for more details.

+##

+##  You should have received a copy of the GNU General Public License

+##  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.

+##

+

+NAME := usb-midi

+BOARD_TYPE := teensy2

+OBJ := $(NAME).o

+LIBS := util led lufa-descriptor-midi

+EXTERNAL_LIBS := lufa

+

+LUFA_PATH := ../contrib/LUFA-120219

+LUFA_OPTS  = -D USB_DEVICE_ONLY

+LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0

+LUFA_OPTS += -D ORDERED_EP_CONFIG

+LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=8

+LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1

+LUFA_OPTS += -D USE_FLASH_DESCRIPTORS

+LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"

+LUFA_OPTS += -D INTERRUPT_CONTROL_ENDPOINT

+

+LUFA_OPTS += -D USB_MANUFACTURER="L\"Radio Helsinki\""

+LUFA_OPTS += -D USB_PRODUCT="L\"$(NAME)\""

+

+LUFA_COMPONENTS := USB USBCLASS

+

+include ../include.mk

diff --git a/usb-midi/usb-midi.c b/usb-midi/usb-midi.c
new file mode 100644
index 0000000..47e06fa
--- /dev/null
+++ b/usb-midi/usb-midi.c
@@ -0,0 +1,118 @@
+/*

+ *  spreadspace avr utils

+ *

+ *

+ *  Copyright (C) 2013 Christian Pointner <equinox@spreadspace.org>

+ *

+ *  This file is part of spreadspace avr utils.

+ *

+ *  spreadspace avr utils is free software: you can redistribute it and/or modify

+ *  it under the terms of the GNU General Public License as published by

+ *  the Free Software Foundation, either version 3 of the License, or

+ *  any later version.

+ *

+ *  spreadspace avr utils is distributed in the hope that it will be useful,

+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of

+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+ *  GNU General Public License for more details.

+ *

+ *  You should have received a copy of the GNU General Public License

+ *  along with spreadspace avr utils. If not, see <http://www.gnu.org/licenses/>.

+ */

+

+

+#include <avr/io.h>

+#include <avr/wdt.h>

+#include <avr/interrupt.h>

+#include <avr/power.h>

+#include <stdio.h>

+

+/*

+             LUFA Library

+     Copyright (C) Dean Camera, 2012.

+

+  dean [at] fourwalledcubicle [dot] com

+           www.lufa-lib.org

+*/

+#include <LUFA/Version.h>

+#include <LUFA/Drivers/USB/USB.h>

+#include "lufa-descriptor-midi.h"

+

+/** LUFA MIDI Class driver interface configuration and state information. This structure is

+ *  passed to all MIDI Class driver functions, so that multiple instances of the same class

+ *  within a device can be differentiated from one another.

+ */

+USB_ClassInfo_MIDI_Device_t Keyboard_MIDI_Interface =

+  {

+    .Config =

+      {

+        .StreamingInterfaceNumber = 1,

+

+        .DataINEndpointNumber      = MIDI_STREAM_IN_EPNUM,

+        .DataINEndpointSize        = MIDI_STREAM_EPSIZE,

+        .DataINEndpointDoubleBank  = false,

+

+        .DataOUTEndpointNumber     = MIDI_STREAM_OUT_EPNUM,

+        .DataOUTEndpointSize       = MIDI_STREAM_EPSIZE,

+        .DataOUTEndpointDoubleBank = false,

+      },

+  };

+

+/** Event handler for the library USB Configuration Changed event. */

+void EVENT_USB_Device_ConfigurationChanged(void)

+{

+  bool ConfigSuccess = true;

+

+  ConfigSuccess &= MIDI_Device_ConfigureEndpoints(&Keyboard_MIDI_Interface);

+}

+

+/** Event handler for the library USB Control Request reception event. */

+void EVENT_USB_Device_ControlRequest(void)

+{

+  MIDI_Device_ProcessControlRequest(&Keyboard_MIDI_Interface);

+}

+

+/* end LUFA MIDI Class driver specific definitions*/

+

+#include "util.h"

+#include "led.h"

+

+int main(void)

+{

+  MCUSR &= ~(1 << WDRF);

+  wdt_disable();

+

+  cpu_init();

+  led_init();

+  USB_Init();

+  sei();

+

+  uint8_t MIDICommand = MIDI_COMMAND_NOTE_ON;

+  for(;;) {

+

+    MIDI_EventPacket_t ReceivedMIDIEvent;

+    while(MIDI_Device_ReceiveEventPacket(&Keyboard_MIDI_Interface, &ReceivedMIDIEvent)) { }

+

+

+    _delay_ms(1000);

+

+    led_on();

+    MIDICommand = (MIDICommand!=MIDI_COMMAND_NOTE_ON) ? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF;

+    MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)

+      {

+        .CableNumber = 0,

+        .Command     = (MIDICommand >> 4),

+

+        .Data1       = MIDICommand | 1,

+        .Data2       = 0,

+        .Data3       = 0,

+      };

+    MIDI_Device_SendEventPacket(&Keyboard_MIDI_Interface, &MIDIEvent);

+    MIDI_Device_Flush(&Keyboard_MIDI_Interface);

+

+    led_off();

+

+    MIDI_Device_USBTask(&Keyboard_MIDI_Interface);

+    USB_USBTask();

+  }

+}