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arduino-tftpboot fix

Posted: Tue Jan 31, 2017 7:13 pm
by ianmcc
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.