mirror of
https://github.com/arduino/Arduino.git
synced 2024-12-05 16:24:12 +01:00
33 lines
1.8 KiB
Plaintext
33 lines
1.8 KiB
Plaintext
Arduino Uno and Mega 2560 Firmwares for the ATmega8U2
|
|
|
|
This directory contains the firmwares used on the ATmega8U2 on the Arduino
|
|
Uno and Arduino Mega 2560. The arduino-usbdfu directory contains the DFU
|
|
bootloader on the 8U2; the arduino-usbserial directory contains the actual
|
|
usb to serial firmware. Both should be compiled against LUFA 100807. The
|
|
two .hex files in this directory combine the dfu and serial firmwares into
|
|
a single file to burn onto the 8U2.
|
|
|
|
To burn (Uno):
|
|
avrdude -p at90usb82 -F -P usb -c avrispmkii -U flash:w:UNO-dfu_and_usbserial_combined.hex -U lfuse:w:0xFF:m -U hfuse:w:0xD9:m -U efuse:w:0xF4:m -U lock:w:0x0F:m
|
|
|
|
To burn (Mega 2560):
|
|
avrdude -p at90usb82 -F -P usb -c avrispmkii -U flash:w:MEGA-dfu_and_usbserial_combined.hex -U lfuse:w:0xFF:m -U hfuse:w:0xD9:m -U efuse:w:0xF4:m -U lock:w:0x0F:m
|
|
|
|
|
|
Note on USB Vendor IDs (VID) and Product IDs (PID): The arduino-usbdfu
|
|
project uses Atmel's VID and MCU-specific PIDs to maintain compatibility
|
|
with their FLIP software. The source code to the arduino-usbserial
|
|
project includes Atmel's VID and a PID donated by them to LUFA. This
|
|
PID is used in LUFA's USBtoSerial project, which forms the basis for
|
|
arduino-usbserial. According to the LUFA documentation, this VID/PID
|
|
combination is:
|
|
|
|
"For use in testing of LUFA powered devices during development only,
|
|
by non-commercial entities. All devices must accept collisions on this
|
|
VID/PID range (from other in-development LUFA devices) to be resolved
|
|
by using a unique release number in the Device Descriptor. No devices
|
|
using this VID/PID combination may be released to the general public."
|
|
|
|
The production version of the arduino-usbserial firmware uses the
|
|
Arduino VID. This is only for use with official Arduino hardware and
|
|
should not be used on other products. |