An error occurred while uploading the sketch; avrdude: verification error, first mismatch at byte

[titusece]

Dear All,

I've uploaded the ariadne bootloader into my arduino UNO board and want to flash blink program via USB port. Getting verification error while uploading,

avrdude: verifying ... avrdude: verification error, first mismatch at byte 0x0000 0xff != 0x0c avrdude: verification error; content mismatch

What could be the problem ?

Can anyone help me on this issue ?

Here is the log:

_Sketch uses 1,976 bytes (6%) of program storage space. Maximum is 32,256 bytes. Global variables use 606 bytes (29%) of dynamic memory, leaving 1,442 bytes for local variables. Maximum is 2,048 bytes. C:\Program Files (x86)\Arduino\hardware\tools\avr/bin/avrdude -CC:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM17 -b115200 -D -Uflash:w:C:\Users\WELCOME\AppData\Local\Temp\build7065a3ab365322b10c2da545450ef55d.tmp/Blink_Serial.ino.hex:i

avrdude: Version 6.0.1, compiled on Apr 15 2015 at 19:59:58 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2009 Joerg Wunsch

     System wide configuration file is "C:\Program Files (x86)\Arduino\hardware\tools\avr/etc/avrdude.conf"

     Using Port                    : COM17
     Using Programmer              : arduino
     Overriding Baud Rate          : 115200
     AVR Part                      : ATmega328P
     Chip Erase delay              : 9000 us
     PAGEL                         : PD7
     BS2                           : PC2
     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    20     4    0 no       1024    4      0  3600  3600 0xff 0xff
       flash         65     6   128    0 yes     32768  128    256  4500  4500 0xff 0xff
       lfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       hfuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       efuse          0     0     0    0 no          1    0      0  4500  4500 0x00 0x00
       lock           0     0     0    0 no          1    0      0  4500  4500 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 : Arduino
     Description     : Arduino
     Hardware Version: 3
     Firmware Version: 0.4
     Vtarget         : 0.3 V
     Varef           : 0.3 V
     Oscillator      : 28.800 kHz
     SCK period      : 3.3 us

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f avrdude: reading input file "C:\Users\WELCOME\AppData\Local\Temp\build7065a3ab365322b10c2da545450ef55d.tmp/Blink_Serial.ino.hex" avrdude: writing flash (1976 bytes):

Writing | ################################################## | 100% 0.29s

avrdude: 1976 bytes of flash written avrdude: verifying flash memory against C:\Users\WELCOME\AppData\Local\Temp\build7065a3ab365322b10c2da545450ef55d.tmp/Blink_Serial.ino.hex: avrdude: load data flash data from input file C:\Users\WELCOME\AppData\Local\Temp\build7065a3ab365322b10c2da545450ef55d.tmp/Blink_Serial.ino.hex: avrdude: input file C:\Users\WELCOME\AppData\Local\Temp\build7065a3ab365322b10c2da545450ef55d.tmp/Blink_Serial.ino.hex contains 1976 bytes avrdude: reading on-chip flash data:

Reading | ###########################################An error occurred while uploading the sketch ####### | 100% 0.26s

avrdude: verifying ... avrdude: verification error, first mismatch at byte 0x0000 0xff != 0x0c avrdude: verification error; content mismatch

avrdude done. Thank you._

[EEScott]

I'm having the exact same issue. For my setup I'm using the Arduino Uno and an AVR Dragon with Atmel Studio to flash the bootloader. When I try to upload the Arduino Blink example (not the .bin file from the repo) from the Arduino IDE, I'm getting this exact same error.

avrdude: verifying ... avrdude: verification error, first mismatch at byte 0x0000 0xff != 0x0c avrdude: verification error; content mismatch

I don't believe it's my setup (the dragon) because I can load the standard bootloader just fine. Were you able to figure out what the issue was?

Thanks!