Implemented on-demand PLL clock generation for the U4, U6 and U7 series USB AVRs...

[pub/USBasp.git] / LUFA / Drivers / USB / Core / AVR8 / USBInterrupt_AVR8.c

diff --git a/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.c b/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.c
index e983cde..856ccd6 100644 (file)
--- a/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.c
+++ b/LUFA/Drivers/USB/Core/AVR8/USBInterrupt_AVR8.c
@@ -90,11 +90,20 @@ ISR(USB_GEN_vect, ISR_BLOCK)
 
                if (USB_VBUS_GetStatus())
                {
+                       if (!(USB_Options & USB_OPT_MANUAL_PLL))
+                       {
+                               USB_PLL_On();
+                               while (!(USB_PLL_IsReady()));
+                       }
+
                        USB_DeviceState = DEVICE_STATE_Powered;
                        EVENT_USB_Device_Connect();
                }
                else
                {
+                       if (!(USB_Options & USB_OPT_MANUAL_PLL))
+                         USB_PLL_Off();
+
                        USB_DeviceState = DEVICE_STATE_Unattached;
                        EVENT_USB_Device_Disconnect();
                }