From c8b72f955f1fd17dbc90254b56e6596ba70660cd Mon Sep 17 00:00:00 2001 From: Dean Camera Date: Mon, 7 Sep 2009 07:57:00 +0000 Subject: Corrected incorrect signature bytes for the AT90USB82 and added support for the ATMEGAXX2 variant AVRs to the DFU bootloader. Added warning to the EVENT_USB_Device_Connect() and EVENT_USB_Device_Disconnect() events that they may be fired multiple times during device enumeration on the series 2 AVRs. --- LUFA/Drivers/USB/HighLevel/Events.h | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'LUFA/Drivers/USB/HighLevel/Events.h') diff --git a/LUFA/Drivers/USB/HighLevel/Events.h b/LUFA/Drivers/USB/HighLevel/Events.h index 9b60a957b..5a007ff2a 100644 --- a/LUFA/Drivers/USB/HighLevel/Events.h +++ b/LUFA/Drivers/USB/HighLevel/Events.h @@ -148,13 +148,16 @@ /** Event for USB device connection. This event fires when the AVR in device mode and the device is connected * to a host, beginning the enumeration process, measured by a rising level on the AVR's VBUS pin. * - * \note For the smaller USB AVRs (AT90USBXX2) with limited USB controllers, VBUS is not available to the USB controller. + * \note For the smaller series 2 USB AVRs with limited USB controllers, VBUS is not available to the USB controller. * this means that the current connection state is derived from the bus suspension and wake up events by default, * which is not always accurate (host may suspend the bus while still connected). If the actual connection state * needs to be determined, VBUS should be routed to an external pin, and the auto-detect behaviour turned off by * passing the NO_LIMITED_CONTROLLER_CONNECT token to the compiler via the -D switch at compile time. The connection * and disconnection events may be manually fired, and the \ref USB_DeviceState global changed manually. * + * \note This event may fire multiple times during device enumeration on the series 2 USB AVRs with limited USB controllers + * if NO_LIMITED_CONTROLLER_CONNECT is not defined. + * * \see USBTask.h for more information on the USB management task and reducing CPU usage. */ void EVENT_USB_Device_Connect(void); @@ -162,13 +165,16 @@ /** Event for USB device disconnection. This event fires when the AVR in device mode and the device is disconnected * from a host, measured by a falling level on the AVR's VBUS pin. * - * \note For the smaller USB AVRs (AT90USBXX2) with limited USB controllers, VBUS is not available to the USB controller. + * \note For the smaller series 2 USB AVRs with limited USB controllers, VBUS is not available to the USB controller. * this means that the current connection state is derived from the bus suspension and wake up events by default, * which is not always accurate (host may suspend the bus while still connected). If the actual connection state * needs to be determined, VBUS should be routed to an external pin, and the auto-detect behaviour turned off by * passing the NO_LIMITED_CONTROLLER_CONNECT token to the compiler via the -D switch at compile time. The connection * and disconnection events may be manually fired, and the \ref USB_DeviceState global changed manually. * + * \note This event may fire multiple times during device enumeration on the series 2 USB AVRs with limited USB controllers + * if NO_LIMITED_CONTROLLER_CONNECT is not defined. + * * \see USBTask.h for more information on the USB management task and reducing CPU usage. */ void EVENT_USB_Device_Disconnect(void); -- cgit v1.2.3