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fw/atusb: add extra steps needed for HULUSB in README

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To preapre the firmware image and flash it onto the device some
different steps are needed as the bootloader uses Atmels DFU variant.

Document the use of dfu-programmer to get the firmware onto the device.
This commit is contained in:
Stefan Schmidt 2017-09-13 18:03:02 +02:00
parent ea23c905d3
commit 805db6ebf5
1 changed files with 10 additions and 0 deletions
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atusb/fw/README
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@ -40,6 +40,16 @@ Requires a very recent toolchain, because ATmega32U2 is relatively new.
this operation can fail with a message like "No DFU capable USB device
found". Just retry, and it will eventually get through.
HULUSB notes:
-------------
To prepare and flash the firmware on a HULUSB device some additional steps are
needed;
avr-objcopy -O ihex -R .signature -R .fuse -R .eeprom hulusb.elf hulusb.hex
dfu-programmer at90usb1287 flash hulusb.hex
dfu-programmer at90usb1287 reset
--------------------------
Making the toolchain: