I have a atmega 328p-pu chip sitthing on my breadbord. I want to see what is on the chip, so I want to read the chip. Is there any way to read it with a UNO in any way?
You could dump a hex file using avrdude, but "seeing" the source code from that would require a decompiler.
somedude:
You could dump a hex file using avrdude, but "seeing" the source code from that would require a decompiler.
Can you suggest the command line ?
Is this correct?
avrdude -c arduino -p m328p -P COM16 :r: read1.hex
I tried the above command line and it gave the following output
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x1e950f
avrdude: safemode: Fuses OK
avrdude done. Thank you.
however, Where is the "read1.hex" located ??
Do you mean the Disassembler ?
Please suggest one.
Will Atmel Studio 6.2 work?
Will AVRStudio 5 work?
Thank you,
-Malhar
But, when I tried this...
avrdude -v -p m328p -c arduino -v -P COM16 -U flash :r:"C:\D
ocuments and Settings\Administrator>read1.hex":i
This is the output:
avrdude: Version 5.10, compiled on Jan 19 2010 at 10:45:23
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "F:\bin\avrdude.conf"
Using Port : COM16
Using Programmer : arduino
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 5 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 : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.02s
avrdude: Device signature = 0x1e950f
avrdude: safemode: lfuse reads as 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode: efuse reads as 0
avrdude: reading input file "flash"
avrdude: error opening flash: No such file or directory
avrdude: input file flash auto detected as invalid format
avrdude: can't open input file flash: No such file or directory
avrdude: write to file 'flash' failed
avrdude: safemode: lfuse reads as 0
avrdude: safemode: hfuse reads as 0
avrdude: safemode: efuse reads as 0
avrdude: safemode: Fuses OK
avrdude done. Thank you.
C:\Documents and Settings\Administrator>
The clock speed is wrong = 28.000KHz
Which should be = 16MHz
lfuse ,hfuse,efuse are wrong
should be = xff,0xde,0x05 respectively
why does it try to write to flash when i specified " :r " ?
Thank you,
-Malhar
That's not the frequency of your AVR, that's the clock of the programmer.
The syntax for the -U option is -U :r|w|v:[:format]:
Look at this for details.
You have an extra space and the '>' symbol in the file path, that is why it thinks you want to write to 'flash'.
Try:
avrdude -v -p m328p -c arduino -P COM16 -U flash:r:"C:\Documents and Settings\Administrator\read1.hex":i
I am not aware of a disassembler, try 'binging' 
Not sure about the other tools or their capabilities.
You might also want to try a newer avrdude.
Success. I can read the atmega328 chip.
What if I want to do the same with attiny 85?
Should I program the arduino with arduino as Isp ans change the part number to t85?
I want to do this.
or this,which you wanted to do also(REF)
Did you try this? Does his work? Will I brick my attiny?(I van build a HVSP with arduino if possible)
when I try this,
avrdude -c arduino -p t85 -PCOM16 -U flash:r:"c:/ffr1.hex":i
This is the error,Which means that avrdude is reading the m328 on my arduino which is configured as arduinoISP
avrdude: Version 5.10, compiled on Jan 19 2010 at 10:45:23
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "F:\bin\avrdude.conf"
Using Port : COM16
Using Programmer : arduino
AVR Part : ATtiny85
Chip Erase delay : 4500 us
PAGEL : P00
BS2 : P00
RESET disposition : possible i/o
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 6 4 0 no 512 4 0 4000 4500 0xff 0xff
flash 65 6 32 0 yes 8192 64 128 4500 4500 0xff 0xff
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
lock 0 0 0 0 no 1 0 0 9000 9000 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
calibration 0 0 0 0 no 2 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: please define PAGEL and BS2 signals in the configuration file for part ATtiny85
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f
avrdude: Expected signature for ATtiny85 is 1E 93 0B
Double check chip, or use -F to override this check.
avrdude done. Thank you.
and,When I try this,
C:\Documents and Settings\Administrator>avrdude -v -c avrisp -p t85 -PCOM16 -U flash:r:"c:/ffr1.hex"
:i
the error is,
avrdude: Version 5.10, compiled on Jan 19 2010 at 10:45:23
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "F:\bin\avrdude.conf"
Using Port : COM16
Using Programmer : avrisp
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude done. Thank you.
same happens with avrispII,stk500,stk500v2
so how do I read the t85?
I think the tint needs a conf file hack, but I don't have the info right now.
Try googling this: avrdude: please define PAGEL and BS2 signals in the configuration file for part ATtiny85
Also, I use avrdude from the Arduino IDE 1.6, you seem to use a standalone older version.
The avrdude configuration files may be different.
avrdude -cstk500v1 -b19200 -P/dev/ttyUSB0 -pt85 -Uflash:r:-:i
This works, you will need to substitute your port (-P) and output file (-) this writes to stdout.
If you still have trouble suppress the reset on your Arduino by placing a ~150 ohm resistor between 5v and reset or a 1uf cap between reset and ground.
tf68:
avrdude -cstk500v1 -b19200 -P/dev/ttyUSB0 -pt85 -Uflash:r:-:iThis works, you will need to substitute your port (-P) and output file (-) this writes to stdout.
If you still have trouble suppress the reset on your Arduino by placing a ~150 ohm resistor between 5v and reset or a 1uf cap between reset and ground.
When even if I suppress the arduinmo reset or not and choose -cstk5000 or -cstk500v2,
it says that,
avrdude: stk500_getsync(): not in sync: resp=0x00
I am using WinAVR,I'll try using avrdude in arduino 1.6.5
Thank you,
-Malhar
MalharD:
and,When I try this,C:\Documents and Settings\Administrator>avrdude -v -c avrisp -p t85 -PCOM16 -U flash:r:"c:/ffr1.hex"
:i
the error is,avrdude: Version 5.10, compiled on Jan 19 2010 at 10:45:23
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is "F:\bin\avrdude.conf"
Using Port : COM16
Using Programmer : avrisp
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude done. Thank you.
same happens with avrispII,stk500,stk500v2
But, ArduinoISP sketch states tht it will turn arduino into avrisp...
// ArduinoISP version 04m3
// Copyright (c) 2008-2011 Randall Bohn
// If you require a license, see
// http://www.opensource.org/licenses/bsd-license.php
//
// This sketch turns the Arduino into a AVRISP
// using the following arduino pins:
So, why do I get the error?