Use the framework provided GlobalInterruptEnable() function instead of the AVR8/XMEGA specific sei() macro, for future demo/project portability.

Projects/AVRISP-MKII/AVRISP-MKII.c

@@ -45,7 +45,7 @@ int main(void)
 	V2Protocol_Init();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/Benito/Benito.c

@@ -93,7 +93,7 @@ int main(void)
 
 	RingBuffer_InitBuffer(&USARTtoUSB_Buffer, USARTtoUSB_Buffer_Data, sizeof(USARTtoUSB_Buffer_Data));
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/HIDReportViewer/HIDReportViewer.c

@@ -73,7 +73,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "HID Device Report Viewer Running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/LEDNotifier/LEDNotifier.c

@@ -114,7 +114,7 @@ int main(void)
 	/* Create a regular blocking character stream for the interface so that it can be used with the stdio.h functions */
 	CDC_Device_CreateBlockingStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/MIDIToneGenerator/MIDIToneGenerator.c

@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/Magstripe/Magstripe.c

@@ -79,7 +79,7 @@ int main(void)
 	for (uint8_t Buffer = 0; Buffer < TOTAL_TRACKS; Buffer++)
 	  BitBuffer_Init(&TrackDataBuffers[Buffer]);
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/MediaController/MediaController.c

@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/MissileLauncher/MissileLauncher.c

@@ -98,7 +98,7 @@ int main(void)
 	CmdState = CMD_STOP;
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/RelayBoard/RelayBoard.c

@@ -45,7 +45,7 @@ int main(void)
 {
 	SetupHardware();
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	  USB_USBTask();

Projects/SerialToLCD/SerialToLCD.c

@@ -83,7 +83,7 @@ int main(void)
 
 	RingBuffer_InitBuffer(&FromHost_Buffer, FromHost_Buffer_Data, sizeof(FromHost_Buffer_Data));
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/TempDataLogger/TempDataLogger.c

@@ -153,7 +153,7 @@ int main(void)
 	OpenLogFile();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/USBtoSerial/USBtoSerial.c

@@ -90,7 +90,7 @@ int main(void)
 	RingBuffer_InitBuffer(&USARTtoUSB_Buffer, USARTtoUSB_Buffer_Data, sizeof(USARTtoUSB_Buffer_Data));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/Webserver/Webserver.c

@@ -44,7 +44,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{

Projects/XPLAINBridge/XPLAINBridge.c

@@ -90,7 +90,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{