enviei o blink without delay através do IDE do Arduino para um Leonardo e deu erro durante o upload.
pesquisei na web e pensei que o problema fosse do bootloader.
Liguei um uspasp e através do ide do arduino, com os settings USBASP as programmer e board Leonardo tentei enviar o bootloader.
Também não funcionou.
Fui à linha de comandos e tentei assim:
cd "C:\Program Files (x86)\Arduino\hardware\tools\avr\etc"
..\bin\avrdude -b 19200 -c usbasp -p m328p -v -e -U efuse:w:0xcb:m -U hfuse:w:0xd8:m -U lfuse:w:0xff:m -C avrdude.conf -p m32u4 -F
dá erro na mesma e agora diz:
avrdude: Version 5.11, compiled on Sep 2 2011 at 19:38:36
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "avrdude.conf"
Using Port : lpt1
Using Programmer : usbasp
Overriding Baud Rate : 19200
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 Max
W ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ---
-- ---------
eeprom 65 10 8 0 no 1024 8 0 9000 90
00 0x00 0x00
flash 65 6 128 0 yes 32768 128 256 4500 45
00 0x00 0x00
lfuse 0 0 0 0 no 1 0 0 9000 90
00 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 9000 90
00 0x00 0x00
efuse 0 0 0 0 no 1 0 0 9000 90
00 0x00 0x00
lock 0 0 0 0 no 1 0 0 9000 90
00 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 : 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
avrdude: AVR device initialized and ready to accept instructions
avrdude: Device signature = 0x000000
avrdude: Yikes! Invalid device signature.
avrdude: Expected signature for ATmega32U4 is 1E 95 87
avrdude done. Thank you.
Há alguma forma de resolver este problema da assinatura inválida?
Agradeço antecipadamente,
Pedro