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Reverse Engineering LPC’s Device Firmware Upgrade Protocol...

Teddy Rogers

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Reverse Engineering LPC’s Device Firmware Upgrade Protocol


Device Firmware Upgrade (DFU) allows a device’s firmware to be changed over USB. The alternative is having to use an external device such as a JTAG programmer. Setting up an external programmer is costly so we wanted to expose a DFU method for upgrading Tessel’s firmware.





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