Long story short, I managed to brick my uno. Don't judge.
I bought a usbtinyisp, and I'm trying to flash the bootloader back to the uno, but I think I might have set some fuses weird, or...? I really am not sure. It keeps telling me the device signature is 0x000000, so after some reading I'm concluding that the clock is not set up right or something. Descriptive, I know. What do you suggest I attempt? Here's a copy of avrdude output:
Code: Select all
avrdude: Version 6.0.1, compiled on Mar 8 2014 at 13:17:08
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "/opt/local/etc/avrdude.conf"
User configuration file is "/Users/joshuabroekhuijsen/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : usb
Using Programmer : usbtiny
avrdude: usbdev_open(): Found USBtinyISP, bus:device: 029:004
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 : USBtiny
Description : USBtiny simple USB programmer, http://www.ladyada.net/make/usbtinyisp/
avrdude: programmer operation not supported
avrdude: Using SCK period of 10 usec
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 ATmega328P is 1E 95 0F
avrdude done. Thank you.
EDIT: Update:
I've tried now also with a breadboard'd (hypothetically) clean (as it's right from digikey) ATMega328 (not p) but I also got device signature 0x000000 with that - something is wrong with the communications, and my usbtinyisp can't 'talk' to the chip. I checked each connection with a multimeter, and while I'm not ruling OUT something being wrong with breadboard, I can't find any evidence of it. PS: My usbtinyisp has jumpers in R4 and R7 .
Are there other connections I should check ? I'm getting really frustrated with this. :/
EDIT: UPDATE:
It appears I CAN talk with the chip when I put it into the duemilanove... what are the implications of this? Could I have messed up the little IC near the USB port on the uno?