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Corrected incorrect signature bytes for the AT90USB82 and added support for the ATMEGAXX2 variant AVRs to the DFU bootloader.

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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.
This commit is contained in:
Dean Camera 2009-09-07 07:57:00 +00:00
parent 1190652c0b
commit c8b72f955f
4 changed files with 36 additions and 18 deletions
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10
LUFA/Drivers/USB/HighLevel/Events.h
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@ -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);