arduino-tftpboot fix

The EtherTen combines an Uno-equivalent Arduino-compatible board and Wiznet-based Ethernet support, along with a microSD card slot and Power-over-Ethernet support. [Product page]
Joined:Fri Aug 10, 2012 1:06 pm
arduino-tftpboot fix

Post by ianmcc » Tue Jan 31, 2017 7:13 pm

Hi, I encountered a problem installing the arduino-tftpboot bootloader on an EtherTen. The problem is a change in avrdude introduced around version 6.2, that changes the way extended fuse bytes are reported. This is described at

This leads to errors when trying to upload the bootloader such as:

avrdude: verification error, first mismatch at byte 0x0000
0xfd != 0x05

The solution is to modify hardware/arduino-tftpboot/boards.txt, the line


should be


After this, it appears to upload successfully.

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