avrdude: verification error, first mismatch at byte 0x0002 (0x61 != 0x5c)

Hi all,

Just got an Arduino Uno R3 with Arduino Starter Kit..
Loading a sketch that blinks the LED on pin 13.
The sketch upload fails with error message;
avrdude: verification error, first mismatch at byte 0x0002
0x61 != 0x5c

Details:

  • Power LED is ON
  • L LED blinks
  • Board: Arduino Uno
  • Serial port: COM3
  • Programmer: AVRISPmkII
  • Pressing RESET blinks several times then blinks constantly
  • Loop-back test works fine with Arduino Serial Monitor.

Any idea why the upload fails?

Attachments:

  • Code: blink
  • Output: verbose upload.

avrdude: AVR device initialized and ready to accept instructions

Extracted from verbosr upload...
avrdude: reading input file "C:\Users\rootnode\AppData\Local\Temp\build8740577638149885836.tmp\Blink.cpp.hex"
avrdude: writing flash (1082 bytes):

avrdude: 1082 bytes of flash written
avrdude: verifying flash memory against C:\Users\rootnode\AppData\Local\Temp\build8740577638149885836.tmp\Blink.cpp.hex:
avrdude: load data flash data from input file C:\Users\rootnode\AppData\Local\Temp\build8740577638149885836.tmp\Blink.cpp.hex:
avrdude: input file C:\Users\rootnode\AppData\Local\Temp\build8740577638149885836.tmp\Blink.cpp.hex contains 1082 bytes
avrdude: reading on-chip flash data:

avrdude: Recv: . [10]

| 100% 0.20s

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0002
0x61 != 0x5c
avrdude: verification error; content mismatch
avrdude: Send: Q [51] [20]
avrdude: Recv: . [14]
avrdude: Recv: . [10]

avrdude done. Thank you.

sketch_verbose_output.txt (26.5 KB)

sketch_blink.txt (931 Bytes)