Hello everyone, I've got a clone of an uno from Elegoo, and I'm trying to burn its bootloader because when I try to upload sketches to it, it fails to sync. So, I'm using an Official Mega board to burn the bootloader and it fails and gives me this error:
"C:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -patmega2560 -cstk500v1 -PCOM14 -b19200 -e -Ulock:w:0x3F:m -Uefuse:w:0xFD:m -Uhfuse:w:0xD8:m -Ulfuse:w:0xFF:m
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"
Using Port : COM14
Using Programmer : stk500v1
Overriding Baud Rate : 19200
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 : STK500
Description : Atmel STK500 Version 1.x firmware
Hardware Version: 2
Firmware Version: 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (probably .avr8x_mega) (retrying)
Reading | ################################################## | 100% 0.03s
avrdude: Device signature = 0xffffff (probably .avr8x_mega) (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0xffffff (probably .avr8x_mega)
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
Failed chip erase: uploading error: exit status 1
Any thoughts?
Thanks for any help!@rlsieben
rlsieben:
AVR Part : ATmega2560
Looks like you're trying to program the Mega, not the Uno. Did you forget to select the Uno after you programmed the Mega with the programmer sketch?
I've moved your topic to the more suitable "Uploading" category.
Have you put the 10uF capacitor between the RST and GND pins of the Arduino UNO?
I just tried changing the board to UNO, but I still get a similar error with only a few changes:
"C:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/bin/avrdude" "-CC:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf" -v -patmega328p -cstk500v1 -PCOM14 -b19200 -e -Ulock:w:0x3F:m -Uefuse:w:0xFD:m -Uhfuse:w:0xDE:m -Ulfuse:w:0xFF:m
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "C:\Users\dcsie\AppData\Local\Arduino15\packages\arduino\tools\avrdude\6.3.0-arduino17/etc/avrdude.conf"
Using Port : COM14
Using Programmer : stk500v1
Overriding Baud Rate : 19200
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 : STK500
Description : Atmel STK500 Version 1.x firmware
Hardware Version: 2
Firmware Version: 1.18
Topcard : Unknown
Vtarget : 0.0 V
Varef : 0.0 V
Oscillator : Off
SCK period : 0.1 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x000000 (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x000000 (retrying)
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
Failed chip erase: uploading error: exit status 1
I've got the sketch uploaded on the MEGA, is the screenshot of the "tools," menu correct?
As far as connecting a capacitor like @MaximoEsfuerzo suggested, I didn't do that because I didn't see anything on doing that in the docs, if that is something I have to do, I only have a polarized version of a 10uf capacitor. Which way should the capacitor go?
About half-way this page: https://docs.arduino.cc/built-in-examples/arduino-isp/ArduinoISP/ . 10 uF seems fine
Other things that can be wrong
Burn bootloader
COM14 needs to be the Mega, not the Uno.
Invalid signature might be due to wiring mistake.
Faulty 328P; can't be excluded.
Your Uno problem
Serial-to-usb adapter on the Uno might be faulty. If the board does not use the CH340, you can run the loop back test .
1 Like
The 10µF electrolytic capacitor connected to RESET and GND of the programming board is needed only for the boards that have an interface between the microcontroller and the computer's USB, like Mega, UNO, Mini, Nano.
From https://docs.arduino.cc/built-in-examples/arduino-isp/ArduinoISP/
b707
December 24, 2024, 7:03am
7
Signature values 0x000000 or 0xffffff is an indicator that you have a connection issue. AVRDude returns these values in case target board doesn't answer.
jim-p
December 24, 2024, 7:54am
8
How did you know it was a bootloader problem?
1 Like
I tried with the capacitor, but I got the first error from post 1.
Only the programmer is the MEGA and the Target is the UNO.
With or without the capacitor it refuses to work.
As for the @jim-p 's question, I assumed it was a bootloader issue because every time I try to upload a sketch to the UNO it gets a "avrdude failed sync, trying again. Tries: 10 out of 10." or something along those lines.
I just did the loop back test:
The loop-back test is a troubleshooting procedure to determine if serial communication between the PC and Arduino board is working in a typical Arduino installation. The test proves that the host computer, hardware driver, USB cable, and USB to serial converter are all working.
Loop-Back Test Instructions...
Disconnect power from the board
Remove all connections and shields from the board
Force the processor to remain in reset by connecting a jumper from RESET to GND
Connect a jumpe…
And the UNO fails to echo commands.
In that case your first problem is that the 16U2 serial-to-usb converter that is malfunctioning.
Following up on jim-p's question
I do get the L-Led to flash when the reset button is pressed.
In which case burning the boot loader is more than likely a futile exercise.
You can try to burn the firmware to the 16U2 either using your programmer Mega connected to the 6-pin header closest to the USB port or by using a tool called Atmel Flip.
Instructions (so maybe not complete) here: https://docs.arduino.cc/retired/hacking/software/DFUProgramming8U2/
b707
December 27, 2024, 4:51pm
14
Please show YOUR wirings rather than random image from the Net.
system
June 25, 2025, 4:51pm
15
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