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I am trying to verify fuse bytes by running the following ***commands. Why I am getting: "The value of one or more fuse bytes are no specified."

*** stk500 -dATMega128 -q STK500 command line programmer, v 2.2 Atmel Corp (C) 2004-2005.

Scanning ports: COM1 ... Connected to STK500 V2 on port COM1 Device parameters loaded Programming mode entered Reading fuse bits... Fuse byte 0 read (0x3F) Fuse byte 1 read (0xD0) Fuse byte 2 read (0xFF) Programming mode left Connection to STK500 V2 closed

*** stk500 -dATMega128 -F3FD0 STK500 command line programmer, v 2.2 Atmel Corp (C) 2004-2005.

Scanning ports: COM1 ... Connected to STK500 V2 on port COM1 Device parameters loaded The value of one or more fuse bytes are not specified.

Reply to
igor
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The "Fuse byte 0", "1", "2" output lines suggest there are three fuse bytes.

The "-F3FD0" option looks like you are specifying two fuse bytes.

Was the program expecting you to provide a third fuse byte?

--
Dan Henry
Reply to
Dan Henry

Had you typed "stk500 -h" you would have seen the correct options.

First of all, -F means verify fusebytes, so you did not specify any fuse byte at all.

-f sets the first fuse bytes 0 and 1 while -E set the extended fuse byte 2

-F verifies fuse bytes 0 and 1 while -G verfies the extended fuse byte 2

Meindert

Reply to
Meindert Sprang

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