hey... i have a question ..im trying to bootload an atmega328 microcontroller following all instructions on the net ..but i keep getting this error:"use - F to override this check ." what does it mean and how do i solve it ? plz reply
shaditheman328:
hey... i have a question ..im trying to bootload an atmega328 microcontroller following all instructions on the net ..but i keep getting this error:"use - F to override this check ." what does it mean and how do i solve it ? plz reply
That sounds like a signature byte error where AVRDUDE found the target to be a 328 Vs a 328P chip. There are various workarounds if you do the research.
Turn on verbose output during upload and copy paste here the output to diagnose.
I have this exact same problem too.
After getting a new Arduino robot with an ATmega32U4 processor on it, while uploading, the sketch overwrote the bootloader and stuffed up the whole thing. So I got a new USBASP programmer to reinstall the bootloader but I get the error:
/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/bin/avrdude -C/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/etc/avrdude.conf -v -v -v -v -patmega32u4 -cusbasp -Pusb -e -Ulock:w:0x3F:m -Uefuse:w:0xcb:m -Uhfuse:w:0xd8:m -Ulfuse:w:0xff:m
avrdude: Version 5.11, compiled on Sep 2 2011 at 18:52:52
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "/Applications/Arduino.app/Contents/Resources/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/ToaCarney/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : usb
Using Programmer : usbasp
avrdude: seen device from vendor ->www.fischl.de<-
avrdude: seen product ->USBasp<-
AVR Part : ATmega32U4
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 1024 8 0 9000 9000 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
flash 65 6 128 0 yes 32768 128 256 4500 4500 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : usbasp
Description : USBasp, http://www.fischl.de/usbasp/
avrdude: auto set sck period (because given equals null)
avrdude: error: programm enable: target doesn't answer. 1
avrdude: initialization failed, rc=-1
Double check connections and try again, or use -F to override
this check.
avrdude done. Thank you.
I did what the error says to do but I still get the same error. I went into my terminal window and used the command: avrdude -p ATmega32U4 -c usbasp -F it but I get another error:
avrdude -p ATmega32U4 -c usbasp -F
avrdude: error: programm enable: target doesn't answer. 1
avrdude: initialization failed, rc=-1
avrdude: AVR device initialized and ready to accept instructions
avrdude: Device signature = 0x000000 (retrying)
avrdude: Device signature = 0x000000 (retrying)
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
avrdude: Expected signature for ATmega32U4 is 1E 95 87
avrdude done. Thank you.
Carney-Familys-MacBook:~ ToaCarney$
use -F to override
This message from AVRDude is a sort of last-effort “suggestion” that is hardly ever a correct or useful suggestion for getting anywhere on arduino and arduino-like processors…
BombGuy102:
I have this exact same problem too.After getting a new Arduino robot with an ATmega32U4 processor on it, while uploading, the sketch overwrote the bootloader and stuffed up the whole thing.
Highly unlikely, the bootloader is protected during uploads. Besides the IDE will not allow sketches bigger than 28672 bytes for the 32U4. Your problem is most likely some other issue and you should open up a your own forum post for this.