diff --git a/Bootloaders/CDC/BootloaderCDC.c b/Bootloaders/CDC/BootloaderCDC.c
index bb5c1e6737f..a6055d302fe 100644
--- a/Bootloaders/CDC/BootloaderCDC.c
+++ b/Bootloaders/CDC/BootloaderCDC.c
@@ -119,7 +119,7 @@ int main(void)
 	LEDs_SetAllLEDs(LEDS_LED1);
 
 	/* Enable global interrupts so that the USB stack can function */
-	sei();
+	GlobalInterruptEnable();
 
 	while (RunBootloader)
 	{
diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index fcacf76cb5f..ef150eefc95 100644
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -155,7 +155,7 @@ int main(void)
 	LEDs_SetAllLEDs(LEDS_LED1);
 
 	/* Enable global interrupts so that the USB stack can function */
-	sei();
+	GlobalInterruptEnable();
 
 	/* Run the USB management task while the bootloader is supposed to be running */
 	while (RunBootloader || WaitForExit)
diff --git a/Bootloaders/HID/BootloaderHID.c b/Bootloaders/HID/BootloaderHID.c
index c32dddc1537..716327671dc 100644
--- a/Bootloaders/HID/BootloaderHID.c
+++ b/Bootloaders/HID/BootloaderHID.c
@@ -73,7 +73,7 @@ int main(void)
 	SetupHardware();
 
 	/* Enable global interrupts so that the USB stack can function */
-	sei();
+	GlobalInterruptEnable();
 
 	while (RunBootloader)
 	  USB_USBTask();
diff --git a/Demos/Device/ClassDriver/AudioInput/AudioInput.c b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
index 66d78b8c877..5b245da30e4 100644
--- a/Demos/Device/ClassDriver/AudioInput/AudioInput.c
+++ b/Demos/Device/ClassDriver/AudioInput/AudioInput.c
@@ -67,7 +67,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
index 1869ac949e8..40b63b18f7d 100644
--- a/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
+++ b/Demos/Device/ClassDriver/AudioOutput/AudioOutput.c
@@ -67,7 +67,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
index a07967c0545..adf734609f2 100644
--- a/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
+++ b/Demos/Device/ClassDriver/DualVirtualSerial/DualVirtualSerial.c
@@ -108,7 +108,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/GenericHID/GenericHID.c b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
index aa365bde208..cb9fda338cc 100644
--- a/Demos/Device/ClassDriver/GenericHID/GenericHID.c
+++ b/Demos/Device/ClassDriver/GenericHID/GenericHID.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/Joystick/Joystick.c b/Demos/Device/ClassDriver/Joystick/Joystick.c
index 4f361daf019..f9a0c24c28a 100644
--- a/Demos/Device/ClassDriver/Joystick/Joystick.c
+++ b/Demos/Device/ClassDriver/Joystick/Joystick.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/Keyboard/Keyboard.c b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
index 24bf8d5fa60..3105cf3de3d 100644
--- a/Demos/Device/ClassDriver/Keyboard/Keyboard.c
+++ b/Demos/Device/ClassDriver/Keyboard/Keyboard.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
index 7b5caa40559..1df97cb7974 100644
--- a/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/ClassDriver/KeyboardMouse/KeyboardMouse.c
@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c b/Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c
index c0526abfd4f..c73ec58f48c 100644
--- a/Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c
+++ b/Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/MIDI/MIDI.c b/Demos/Device/ClassDriver/MIDI/MIDI.c
index 6a117ab4b2b..92776597d9b 100644
--- a/Demos/Device/ClassDriver/MIDI/MIDI.c
+++ b/Demos/Device/ClassDriver/MIDI/MIDI.c
@@ -69,7 +69,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/MassStorage/MassStorage.c b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
index 0ba06a5d071..144e6a8ec0a 100644
--- a/Demos/Device/ClassDriver/MassStorage/MassStorage.c
+++ b/Demos/Device/ClassDriver/MassStorage/MassStorage.c
@@ -70,7 +70,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c b/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
index 7e12a5d6e3b..b4c03740e48 100644
--- a/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
+++ b/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.c
@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/Mouse/Mouse.c b/Demos/Device/ClassDriver/Mouse/Mouse.c
index 00cadb41c6f..66d98283e79 100644
--- a/Demos/Device/ClassDriver/Mouse/Mouse.c
+++ b/Demos/Device/ClassDriver/Mouse/Mouse.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c b/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
index 37fb817de94..c047cdc7688 100644
--- a/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
+++ b/Demos/Device/ClassDriver/RNDISEthernet/RNDISEthernet.c
@@ -85,7 +85,7 @@ int main(void)
 	Webserver_Init();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
index 8b11c298c3b..68011e9ca3a 100644
--- a/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
+++ b/Demos/Device/ClassDriver/VirtualSerial/VirtualSerial.c
@@ -83,7 +83,7 @@ int main(void)
 	CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/VirtualSerialMassStorage/VirtualSerialMassStorage.c b/Demos/Device/ClassDriver/VirtualSerialMassStorage/VirtualSerialMassStorage.c
index 14d6abdd951..7af2ff6b556 100644
--- a/Demos/Device/ClassDriver/VirtualSerialMassStorage/VirtualSerialMassStorage.c
+++ b/Demos/Device/ClassDriver/VirtualSerialMassStorage/VirtualSerialMassStorage.c
@@ -108,7 +108,7 @@ int main(void)
 	CDC_Device_CreateStream(&VirtualSerial_CDC_Interface, &USBSerialStream);
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c b/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
index dbbc8e7b4f1..743d9a4018a 100644
--- a/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
+++ b/Demos/Device/ClassDriver/VirtualSerialMouse/VirtualSerialMouse.c
@@ -98,7 +98,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
index 027264ab5f8..9f767a0c16f 100644
--- a/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
+++ b/Demos/Device/Incomplete/TestAndMeasurement/TestAndMeasurement.c
@@ -81,7 +81,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/AudioInput/AudioInput.c b/Demos/Device/LowLevel/AudioInput/AudioInput.c
index 925517b398c..9000ecc632f 100644
--- a/Demos/Device/LowLevel/AudioInput/AudioInput.c
+++ b/Demos/Device/LowLevel/AudioInput/AudioInput.c
@@ -51,7 +51,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
index ebf4ad51d63..3cc60025a21 100644
--- a/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
+++ b/Demos/Device/LowLevel/AudioOutput/AudioOutput.c
@@ -51,7 +51,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c b/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
index 2db6f4e23db..d7a4e52faa6 100644
--- a/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
+++ b/Demos/Device/LowLevel/DualVirtualSerial/DualVirtualSerial.c
@@ -71,7 +71,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/GenericHID/GenericHID.c b/Demos/Device/LowLevel/GenericHID/GenericHID.c
index c36c33f7e54..bcb90b991d1 100644
--- a/Demos/Device/LowLevel/GenericHID/GenericHID.c
+++ b/Demos/Device/LowLevel/GenericHID/GenericHID.c
@@ -45,7 +45,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/Joystick/Joystick.c b/Demos/Device/LowLevel/Joystick/Joystick.c
index cfdfaae2fa0..8800abca8ff 100644
--- a/Demos/Device/LowLevel/Joystick/Joystick.c
+++ b/Demos/Device/LowLevel/Joystick/Joystick.c
@@ -44,7 +44,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/Keyboard/Keyboard.c b/Demos/Device/LowLevel/Keyboard/Keyboard.c
index aeaa045ded7..6f9da5b2697 100644
--- a/Demos/Device/LowLevel/Keyboard/Keyboard.c
+++ b/Demos/Device/LowLevel/Keyboard/Keyboard.c
@@ -62,7 +62,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
index f932a32f309..e41572e9e9d 100644
--- a/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
+++ b/Demos/Device/LowLevel/KeyboardMouse/KeyboardMouse.c
@@ -52,7 +52,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/MIDI/MIDI.c b/Demos/Device/LowLevel/MIDI/MIDI.c
index 335c7143e35..f9f937d2747 100644
--- a/Demos/Device/LowLevel/MIDI/MIDI.c
+++ b/Demos/Device/LowLevel/MIDI/MIDI.c
@@ -44,7 +44,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/MassStorage/MassStorage.c b/Demos/Device/LowLevel/MassStorage/MassStorage.c
index 0e8e1083b88..2cfaec6a0fb 100644
--- a/Demos/Device/LowLevel/MassStorage/MassStorage.c
+++ b/Demos/Device/LowLevel/MassStorage/MassStorage.c
@@ -55,7 +55,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/Mouse/Mouse.c b/Demos/Device/LowLevel/Mouse/Mouse.c
index e9f92e4a226..d6552b6b0d3 100644
--- a/Demos/Device/LowLevel/Mouse/Mouse.c
+++ b/Demos/Device/LowLevel/Mouse/Mouse.c
@@ -61,7 +61,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
index c041bb91a57..51b827a16e5 100644
--- a/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
+++ b/Demos/Device/LowLevel/RNDISEthernet/RNDISEthernet.c
@@ -48,7 +48,7 @@ int main(void)
 	Webserver_Init();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c b/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
index 7d185481df8..77875ca06c1 100644
--- a/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
+++ b/Demos/Device/LowLevel/VirtualSerial/VirtualSerial.c
@@ -58,7 +58,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/DualRole/ClassDriver/MouseHostDevice/MouseHostDevice.c b/Demos/DualRole/ClassDriver/MouseHostDevice/MouseHostDevice.c
index 53e01b27900..3ea24418ffe 100644
--- a/Demos/DualRole/ClassDriver/MouseHostDevice/MouseHostDevice.c
+++ b/Demos/DualRole/ClassDriver/MouseHostDevice/MouseHostDevice.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mouse Host/Device Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/AndroidAccessoryHost/AndroidAccessoryHost.c b/Demos/Host/ClassDriver/AndroidAccessoryHost/AndroidAccessoryHost.c
index b1e988cca24..c2010e628f2 100644
--- a/Demos/Host/ClassDriver/AndroidAccessoryHost/AndroidAccessoryHost.c
+++ b/Demos/Host/ClassDriver/AndroidAccessoryHost/AndroidAccessoryHost.c
@@ -77,7 +77,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Android Accessory Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/AudioInputHost/AudioInputHost.c b/Demos/Host/ClassDriver/AudioInputHost/AudioInputHost.c
index aa274932f38..787aaf0d6b1 100644
--- a/Demos/Host/ClassDriver/AudioInputHost/AudioInputHost.c
+++ b/Demos/Host/ClassDriver/AudioInputHost/AudioInputHost.c
@@ -62,7 +62,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Audio Input Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/AudioOutputHost/AudioOutputHost.c b/Demos/Host/ClassDriver/AudioOutputHost/AudioOutputHost.c
index 5f00568f5cd..b4217797ce2 100644
--- a/Demos/Host/ClassDriver/AudioOutputHost/AudioOutputHost.c
+++ b/Demos/Host/ClassDriver/AudioOutputHost/AudioOutputHost.c
@@ -62,7 +62,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Audio Output Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/JoystickHostWithParser/JoystickHostWithParser.c b/Demos/Host/ClassDriver/JoystickHostWithParser/JoystickHostWithParser.c
index 18c02d7699d..a59364df5e5 100644
--- a/Demos/Host/ClassDriver/JoystickHostWithParser/JoystickHostWithParser.c
+++ b/Demos/Host/ClassDriver/JoystickHostWithParser/JoystickHostWithParser.c
@@ -73,7 +73,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Joystick Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c
index 69499089b33..d2fe0ce0e59 100644
--- a/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c
+++ b/Demos/Host/ClassDriver/KeyboardHost/KeyboardHost.c
@@ -69,7 +69,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Keyboard Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/KeyboardHostWithParser/KeyboardHostWithParser.c b/Demos/Host/ClassDriver/KeyboardHostWithParser/KeyboardHostWithParser.c
index 6ef182000a3..a1b17bb71ed 100644
--- a/Demos/Host/ClassDriver/KeyboardHostWithParser/KeyboardHostWithParser.c
+++ b/Demos/Host/ClassDriver/KeyboardHostWithParser/KeyboardHostWithParser.c
@@ -73,7 +73,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Keyboard Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c b/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c
index 04a945429b4..8c7d6ccba76 100644
--- a/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c
+++ b/Demos/Host/ClassDriver/MIDIHost/MIDIHost.c
@@ -68,7 +68,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.c b/Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.c
index aacc0787907..3a102b75bf6 100644
--- a/Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.c
+++ b/Demos/Host/ClassDriver/MassStorageHost/MassStorageHost.c
@@ -68,7 +68,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/MouseHost/MouseHost.c b/Demos/Host/ClassDriver/MouseHost/MouseHost.c
index 1290e48555a..56ae6365fe8 100644
--- a/Demos/Host/ClassDriver/MouseHost/MouseHost.c
+++ b/Demos/Host/ClassDriver/MouseHost/MouseHost.c
@@ -69,7 +69,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mouse Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c b/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
index 8004b5ca192..9426aec989b 100644
--- a/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
+++ b/Demos/Host/ClassDriver/MouseHostWithParser/MouseHostWithParser.c
@@ -71,9 +71,9 @@ int main(void)
 	SetupHardware();
 
 	puts_P(PSTR(ESC_FG_CYAN "Mouse Host Demo running.\r\n" ESC_FG_WHITE));
-	sei();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/PrinterHost/PrinterHost.c b/Demos/Host/ClassDriver/PrinterHost/PrinterHost.c
index 51157a315c5..f7aca3e349b 100644
--- a/Demos/Host/ClassDriver/PrinterHost/PrinterHost.c
+++ b/Demos/Host/ClassDriver/PrinterHost/PrinterHost.c
@@ -68,7 +68,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Printer Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/StillImageHost/StillImageHost.c b/Demos/Host/ClassDriver/StillImageHost/StillImageHost.c
index 9a89452afc6..abded6e94e5 100644
--- a/Demos/Host/ClassDriver/StillImageHost/StillImageHost.c
+++ b/Demos/Host/ClassDriver/StillImageHost/StillImageHost.c
@@ -73,7 +73,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
index bce7804b4cc..abbd2be66ed 100644
--- a/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
+++ b/Demos/Host/ClassDriver/VirtualSerialHost/VirtualSerialHost.c
@@ -73,7 +73,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/AndroidAccessoryHost/AndroidAccessoryHost.c b/Demos/Host/LowLevel/AndroidAccessoryHost/AndroidAccessoryHost.c
index c5196751aa8..9e55c63f8be 100644
--- a/Demos/Host/LowLevel/AndroidAccessoryHost/AndroidAccessoryHost.c
+++ b/Demos/Host/LowLevel/AndroidAccessoryHost/AndroidAccessoryHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Android Accessory Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/AudioInputHost/AudioInputHost.c b/Demos/Host/LowLevel/AudioInputHost/AudioInputHost.c
index 2fb7c828179..f98a443f7a2 100644
--- a/Demos/Host/LowLevel/AudioInputHost/AudioInputHost.c
+++ b/Demos/Host/LowLevel/AudioInputHost/AudioInputHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Audio Input Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c b/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
index 2b89807b27e..6a1a49ff35c 100644
--- a/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
+++ b/Demos/Host/LowLevel/AudioOutputHost/AudioOutputHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Audio Output Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/GenericHIDHost/GenericHIDHost.c b/Demos/Host/LowLevel/GenericHIDHost/GenericHIDHost.c
index c3936e688bc..651c53bd4df 100644
--- a/Demos/Host/LowLevel/GenericHIDHost/GenericHIDHost.c
+++ b/Demos/Host/LowLevel/GenericHIDHost/GenericHIDHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Generic HID Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/JoystickHostWithParser/JoystickHostWithParser.c b/Demos/Host/LowLevel/JoystickHostWithParser/JoystickHostWithParser.c
index fda1fd90349..484d46a2e18 100644
--- a/Demos/Host/LowLevel/JoystickHostWithParser/JoystickHostWithParser.c
+++ b/Demos/Host/LowLevel/JoystickHostWithParser/JoystickHostWithParser.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Joystick HID Parser Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/KeyboardHost/KeyboardHost.c b/Demos/Host/LowLevel/KeyboardHost/KeyboardHost.c
index b06014ef134..f7b72f714f9 100644
--- a/Demos/Host/LowLevel/KeyboardHost/KeyboardHost.c
+++ b/Demos/Host/LowLevel/KeyboardHost/KeyboardHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Keyboard HID Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/KeyboardHostWithParser/KeyboardHostWithParser.c b/Demos/Host/LowLevel/KeyboardHostWithParser/KeyboardHostWithParser.c
index 2f7ee68b127..821be3b0743 100644
--- a/Demos/Host/LowLevel/KeyboardHostWithParser/KeyboardHostWithParser.c
+++ b/Demos/Host/LowLevel/KeyboardHostWithParser/KeyboardHostWithParser.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Keyboard HID Parser Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
index f6b607a9737..75f56688dc4 100644
--- a/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
+++ b/Demos/Host/LowLevel/MIDIHost/MIDIHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "MIDI Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/MassStorageHost/MassStorageHost.c b/Demos/Host/LowLevel/MassStorageHost/MassStorageHost.c
index 8c9fc712e55..b9fc6beb880 100644
--- a/Demos/Host/LowLevel/MassStorageHost/MassStorageHost.c
+++ b/Demos/Host/LowLevel/MassStorageHost/MassStorageHost.c
@@ -50,7 +50,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mass Storage Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/MouseHost/MouseHost.c b/Demos/Host/LowLevel/MouseHost/MouseHost.c
index ce24f69f337..e7f5117a987 100644
--- a/Demos/Host/LowLevel/MouseHost/MouseHost.c
+++ b/Demos/Host/LowLevel/MouseHost/MouseHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mouse HID Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c b/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
index 8cb9396f8c4..b1310fea05c 100644
--- a/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
+++ b/Demos/Host/LowLevel/MouseHostWithParser/MouseHostWithParser.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Mouse HID Parser Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/PrinterHost/PrinterHost.c b/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
index eecd0647064..b5f5a0da7ae 100644
--- a/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
+++ b/Demos/Host/LowLevel/PrinterHost/PrinterHost.c
@@ -43,10 +43,10 @@ int main(void)
 {
 	SetupHardware();
 
-	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-
 	puts_P(PSTR(ESC_FG_CYAN "Printer Host Demo running.\r\n" ESC_FG_WHITE));
-	sei();
+
+	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/RNDISEthernetHost/RNDISEthernetHost.c b/Demos/Host/LowLevel/RNDISEthernetHost/RNDISEthernetHost.c
index 2d6f0c6cc14..8be1eb295f2 100644
--- a/Demos/Host/LowLevel/RNDISEthernetHost/RNDISEthernetHost.c
+++ b/Demos/Host/LowLevel/RNDISEthernetHost/RNDISEthernetHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "RNDIS Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/StillImageHost/StillImageHost.c b/Demos/Host/LowLevel/StillImageHost/StillImageHost.c
index 69bb8491593..c4e0117a988 100644
--- a/Demos/Host/LowLevel/StillImageHost/StillImageHost.c
+++ b/Demos/Host/LowLevel/StillImageHost/StillImageHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "Still Image Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c b/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c
index 88d7b74b09f..80b79239249 100644
--- a/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c
+++ b/Demos/Host/LowLevel/VirtualSerialHost/VirtualSerialHost.c
@@ -46,7 +46,7 @@ int main(void)
 	puts_P(PSTR(ESC_FG_CYAN "CDC Host Demo running.\r\n" ESC_FG_WHITE));
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/AVRISP-MKII/AVRISP-MKII.c b/Projects/AVRISP-MKII/AVRISP-MKII.c
index c4623fd8e3a..9e1337af60d 100644
--- a/Projects/AVRISP-MKII/AVRISP-MKII.c
+++ b/Projects/AVRISP-MKII/AVRISP-MKII.c
@@ -45,7 +45,7 @@ int main(void)
 	V2Protocol_Init();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/Benito/Benito.c b/Projects/Benito/Benito.c
index d68cee3c962..2263f391caa 100644
--- a/Projects/Benito/Benito.c
+++ b/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 (;;)
 	{
diff --git a/Projects/HIDReportViewer/HIDReportViewer.c b/Projects/HIDReportViewer/HIDReportViewer.c
index fa44c084358..62c638a88c6 100644
--- a/Projects/HIDReportViewer/HIDReportViewer.c
+++ b/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 (;;)
 	{
diff --git a/Projects/LEDNotifier/LEDNotifier.c b/Projects/LEDNotifier/LEDNotifier.c
index dd3a8ae3a07..141063cf894 100644
--- a/Projects/LEDNotifier/LEDNotifier.c
+++ b/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 (;;)
 	{
diff --git a/Projects/MIDIToneGenerator/MIDIToneGenerator.c b/Projects/MIDIToneGenerator/MIDIToneGenerator.c
index 5f17fdd1c6a..25a3bb47cf8 100644
--- a/Projects/MIDIToneGenerator/MIDIToneGenerator.c
+++ b/Projects/MIDIToneGenerator/MIDIToneGenerator.c
@@ -93,7 +93,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/Magstripe/Magstripe.c b/Projects/Magstripe/Magstripe.c
index ecdf68b0b6c..8d52e6a753d 100644
--- a/Projects/Magstripe/Magstripe.c
+++ b/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 (;;)
 	{
diff --git a/Projects/MediaController/MediaController.c b/Projects/MediaController/MediaController.c
index 24f02580dc7..51502c764d4 100644
--- a/Projects/MediaController/MediaController.c
+++ b/Projects/MediaController/MediaController.c
@@ -68,7 +68,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/MissileLauncher/MissileLauncher.c b/Projects/MissileLauncher/MissileLauncher.c
index 7f40044fecc..ae225b17311 100644
--- a/Projects/MissileLauncher/MissileLauncher.c
+++ b/Projects/MissileLauncher/MissileLauncher.c
@@ -98,7 +98,7 @@ int main(void)
 	CmdState = CMD_STOP;
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/RelayBoard/RelayBoard.c b/Projects/RelayBoard/RelayBoard.c
index 77ea30315bf..8fd5baf83f4 100644
--- a/Projects/RelayBoard/RelayBoard.c
+++ b/Projects/RelayBoard/RelayBoard.c
@@ -45,7 +45,7 @@ int main(void)
 {
 	SetupHardware();
 
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	  USB_USBTask();
diff --git a/Projects/SerialToLCD/SerialToLCD.c b/Projects/SerialToLCD/SerialToLCD.c
index b94c5a4a29d..21f3e4af43e 100644
--- a/Projects/SerialToLCD/SerialToLCD.c
+++ b/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 (;;)
 	{
diff --git a/Projects/TempDataLogger/TempDataLogger.c b/Projects/TempDataLogger/TempDataLogger.c
index eb63bc6a920..e03f6d8610c 100644
--- a/Projects/TempDataLogger/TempDataLogger.c
+++ b/Projects/TempDataLogger/TempDataLogger.c
@@ -153,7 +153,7 @@ int main(void)
 	OpenLogFile();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c
index a0b8de4c4e1..fb9ac8770a6 100644
--- a/Projects/USBtoSerial/USBtoSerial.c
+++ b/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 (;;)
 	{
diff --git a/Projects/Webserver/Webserver.c b/Projects/Webserver/Webserver.c
index 899b97d02d1..c6556beabf8 100644
--- a/Projects/Webserver/Webserver.c
+++ b/Projects/Webserver/Webserver.c
@@ -44,7 +44,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{
diff --git a/Projects/XPLAINBridge/XPLAINBridge.c b/Projects/XPLAINBridge/XPLAINBridge.c
index 7909cc45c57..0b5b6125e98 100644
--- a/Projects/XPLAINBridge/XPLAINBridge.c
+++ b/Projects/XPLAINBridge/XPLAINBridge.c
@@ -90,7 +90,7 @@ int main(void)
 	SetupHardware();
 
 	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
-	sei();
+	GlobalInterruptEnable();
 
 	for (;;)
 	{