1 files changed, 11 insertions, 3 deletions
diff --git a/main.cpp b/main.cpp
index baad038..04fcae8 100644
--- a/main.cpp
+++ b/main.cpp
@@ -19,9 +19,9 @@ static Pin& usb_vbus = PA9;
 
 template<>
 void interrupt<(Interrupt::IRQ)67>() {
-	led_blue.toggle();
 	led_red.toggle();
-
+	
+	// USB reset.
 	if(OTG_FS.reg.GINTSTS & (1 << 12)) {
 		led_yellow.toggle();
 		OTG_FS.dev_oep_reg[0].DOEPCTL = (1 << 27);
@@ -32,6 +32,13 @@ void interrupt<(Interrupt::IRQ)67>() {
 		OTG_FS.dev_oep_reg[0].DOEPTSIZ = (3 << 29);
 	}
 	
+	// OTG interrupt.
+	if(OTG_FS.reg.GINTSTS & (1 << 2)) {
+		led_blue.toggle();
+		
+		OTG_FS.reg.GOTGINT = (1 << 2); // SEDET
+	}
+	
 	OTG_FS.reg.GINTSTS = 0xffffffff;
 }
 
@@ -49,8 +56,9 @@ int main() {
 	led_red.set_mode(Pin::Output);
 	led_blue.set_mode(Pin::Output);
 	
-	led_red.on();
+	led_red.off();
 	led_blue.off();
+	led_yellow.off();
 	
 	usb_vbus.set_mode(Pin::AF);
 	usb_vbus.set_pull(Pin::PullNone);