I have an STK600 with an atmega2560 microcontroller, and am trying to use
avrdude on Ubuntu to connect to the board. No matter what command I run,
avrdude gives me the following error.

avrdude: stk500v2_program_enable(): bad STK600 connection status: Target
not detected (0x00)
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.

I was able to connect to the STK600 using AVR Studio on a Windows machine
to set the voltage. After that, avrdude seemed to work for a time, but
after typing a command wrong, it went back to giving me this error every
time.

I'm using the avrdude 5.10 which is available through Ubuntu's package
manager.

In case it helps, here's the verbose output of the following command.

> avrdude -c stk600 -p atmega2560 -P usb -v

avrdude: Version 5.10, compiled on Mar 23 2010 at 15:03:00
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "/etc/avrdude.conf"
         User configuration file is "/home/hayden/.avrduderc"
         User configuration file does not exist or is not a regular file,
skipping

         Using Port                    : usb
         Using Programmer              : stk600
avrdude: usbdev_open(): Found STK600, serno: 0045E550839C
         AVR Part                      : ATMEGA2560
         Chip Erase delay              : 9000 us
         PAGEL                         : PD7
         BS2                           : PA0
         RESET disposition             : dedicated
         RETRY pulse                   : SCK
         serial program mode           : yes
         parallel program mode         : yes
         Timeout                       : 200
         StabDelay                     : 100
         CmdexeDelay                   : 25
         SyncLoops                     : 32
         ByteDelay                     : 0
         PollIndex                     : 3
         PollValue                     : 0x53
         Memory Detail                 :

                                  Block Poll               Page
          Polled
           Memory Type Mode Delay Size  Indx Paged  Size   Size #Pages MinW
 MaxW   ReadBack
           ----------- ---- ----- ----- ---- ------ ------ ---- ------
----- ----- ---------
           eeprom        65    10     8    0 no       4096    8      0
 9000  9000 0x00 0x00
           flash         65    10   256    0 yes    262144  256   1024
 4500  4500 0x00 0x00
           lfuse          0     0     0    0 no          1    0      0
 9000  9000 0x00 0x00
           hfuse          0     0     0    0 no          1    0      0
 9000  9000 0x00 0x00
           efuse          0     0     0    0 no          1    0      0
 9000  9000 0x00 0x00
           lock           0     0     0    0 no          1    0      0
 9000  9000 0x00 0x00
           calibration    0     0     0    0 no          1    0      0
0     0 0x00 0x00
           signature      0     0     0    0 no          3    0      0
0     0 0x00 0x00

         Programmer Type : STK600
         Description     : Atmel STK600
         Programmer Model: STK600
         Hardware Version: 3
         Firmware Version Master : 2.06
         Firmware Version Slave 1: 2.01
         Firmware Version Slave 2: 2.00
         Routing card    : Not present
         Socket card     : STK600-ATMEGA2560
         RC_ID table rev : 26
         EC_ID table rev : 1
         Vtarget         : 5.0 V
         Varef 0         : 4.99 V
         Varef 1         : 4.99 V
         SCK period      : 5.00 us
         Oscillator      : 199.976 kHz

avrdude: stk500v2_program_enable(): bad STK600 connection status: Target
not detected (0x00)
avrdude: initialization failed, rc=-1
         Double check connections and try again, or use -F to override
         this check.


avrdude done.  Thank you.
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