comparison: sanguino/firmwares/README.txt
sanguino/firmwares/README.txt
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| 1 Arduino Uno and Mega 2560 Firmwares for the ATmega8U2 | |
| 2 | |
| 3 This directory contains the firmwares used on the ATmega8U2 on the Arduino | |
| 4 Uno and Arduino Mega 2560. The arduino-usbdfu directory contains the DFU | |
| 5 bootloader on the 8U2; the arduino-usbserial directory contains the actual | |
| 6 usb to serial firmware. Both should be compiled against LUFA 100807. The | |
| 7 two .hex files in this directory combine the dfu and serial firmwares into | |
| 8 a single file to burn onto the 8U2. | |
| 9 | |
| 10 To burn (Uno): | |
| 11 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 | |
| 12 | |
| 13 To burn (Mega 2560): | |
| 14 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 | |
| 15 | |
| 16 | |
| 17 Note on USB Vendor IDs (VID) and Product IDs (PID): The arduino-usbdfu | |
| 18 project uses Atmel's VID and MCU-specific PIDs to maintain compatibility | |
| 19 with their FLIP software. The source code to the arduino-usbserial | |
| 20 project includes Atmel's VID and a PID donated by them to LUFA. This | |
| 21 PID is used in LUFA's USBtoSerial project, which forms the basis for | |
| 22 arduino-usbserial. According to the LUFA documentation, this VID/PID | |
| 23 combination is: | |
| 24 | |
| 25 "For use in testing of LUFA powered devices during development only, | |
| 26 by non-commercial entities. All devices must accept collisions on this | |
| 27 VID/PID range (from other in-development LUFA devices) to be resolved | |
| 28 by using a unique release number in the Device Descriptor. No devices | |
| 29 using this VID/PID combination may be released to the general public." | |
| 30 | |
| 31 The production version of the arduino-usbserial firmware uses the | |
| 32 Arduino VID. This is only for use with official Arduino hardware and | |
| 33 should not be used on other products. |
