avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0xffff03
avrdude: Expected signature for ATmega328P is 1E 95 0F
Double check chip, or use -F to override this check.

avrdude done. Thank you.

ERROR, flash NOT successful

The Device signature changes every attempt! Grr....

This is a common problem with atmega chips yet searching the net gives garbage answers and does not help at all with the onion version.

Can the devs please write a recovery procedure to fix this problem and add it to the wiki...I am sure it will help allot of users out there. Also can the devs patch the ardrino-dock script to add the -F option?

for some reason my onion2+ cannot flash the ardrino dock2. Seems like the atmega328p boot block now has the wrong code.

Presumably you are talking about the Boot Loader Section of the flash. Omgega2(+) with Arduino Dock 2 operates as an ISP programmer - so it doesn't use / doesn't need any bootloader program by default.
The Signature Bytes are stored in another memory space and this special memory space is accessible through special undocumented programming instructions only.

The Device signature changes every attempt! Grr....

This is a common problem with atmega chips yet searching the net gives garbage answers and does not help at all with the onion version.

Can the devs please write a recovery procedure to fix this problem and add it to the wiki...I am sure it will help allot of users out there. Also can the devs patch the ardrino-dock script to add the -F option?

("This is a common problem with atmega chips ..." - there are lots of misinformation / fake info on the Internet.
If your hardware, firmware, the installed programs, the Arduino IDE on the host PC and all settings are OK then Omega2(+) with Arduino Dock 2 can identify the ATmega328P always correctly (Device signature = 0x1e950f).

You should check your on-board AVR chip in a clean state again (after a Factory Reset).

About the -F option:

BusyBox v1.26.2 () built-in shell (ash)

   ____       _             ____
  / __ \___  (_)__  ___    / __ \__ _  ___ ___ ____ _
 / /_/ / _ \/ / _ \/ _ \  / /_/ /  ' \/ -_) _ `/ _ `/
 \____/_//_/_/\___/_//_/  \____/_/_/_/\__/\_, /\_,_/
 W H A T  W I L L  Y O U  I N V E N T ? /___/
 -----------------------------------------------------
   Ω-ware: 0.1.10 b160
 -----------------------------------------------------
root@Omega-99A5:~# avrdude
Usage: avrdude [options]
Options:
  -p <partno>                Required. Specify AVR device.
  -b <baudrate>              Override RS-232 baud rate.
  -B <bitclock>              Specify JTAG/STK500v2 bit clock period (us).
  -C <config-file>           Specify location of configuration file.
  -c <programmer>            Specify programmer type.
  -D                         Disable auto erase for flash memory
  -i <delay>                 ISP Clock Delay [in microseconds]
  -P <port>                  Specify connection port.
  -F                         Override invalid signature check.
  -e                         Perform a chip erase.
  -O                         Perform RC oscillator calibration (see AVR053). 
  -U <memtype>:r|w|v:<filename>[:format]
                             Memory operation specification.
                             Multiple -U options are allowed, each request
                             is performed in the order specified.
  -n                         Do not write anything to the device.
  -V                         Do not verify.
  -u                         Disable safemode, default when running from a script.
  -s                         Silent safemode operation, will not ask you if
                             fuses should be changed back.
  -t                         Enter terminal mode.
  -E <exitspec>[,<exitspec>] List programmer exit specifications.
  -x <extended_param>        Pass <extended_param> to programmer.
  -y                         Count # erase cycles in EEPROM.
  -Y <number>                Initialize erase cycle # in EEPROM.
  -v                         Verbose output. -v -v for more.
  -q                         Quell progress output. -q -q for less.
  -l logfile                 Use logfile rather than stderr for diagnostics.
  -?                         Display this usage.

avrdude version 6.1, URL: <http://savannah.nongnu.org/projects/avrdude/>

@György-Farkas said in Ardrino Dock2 request reflash recovery proceedure:

If your hardware, firmware, the installed programs, the Arduino IDE on the host PC and all settings are OK then Omega2(+) with Arduino Dock 2 can identify the ATmega328P always correctly (Device signature = 0x1e950f).
You should check your on-board AVR chip in a clean state again (after a Factory Reset).

could you explain how to do a factory reset?

and the avrdude command line switches for the omega2(+) with the ardrino dock2 (to reset it or manually program it)

I've tried different combinations of

root@Omega-:~#avrdude -c avrispmkII [and others] -p m328p -P /dev/ttyS1 /tmp/sketch.hex

which errors out with:

avrdude: stk500v2_ReceiveMessage(): timeout

Thanks

This is my config: Omega2+ 0.1.10 b160 with Arduino Dock 2

root@Omega-99A5:~# avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c linuxgpio -P gpio -n -v

avrdude: Version 6.1, compiled on Mar 27 2018 at 01:00:08
         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
         Copyright (c) 2007-2014 Joerg Wunsch

         System wide configuration file is "/usr/share/arduino-dock/avrdude.conf"
         User configuration file is "/root/.avrduderc"
         User configuration file does not exist or is not a regular file, skipping

         Using Port                    : gpio
         Using Programmer              : linuxgpio
         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 : linuxgpio
         Description     : Use the Linux sysfs interface to bitbang GPIO lines
         Pin assignment  : /sys/class/gpio/gpio{n}
           RESET   = ~19
           SCK     =  15
           MOSI    =  16
           MISO    =  17

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f
avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5

avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5
avrdude: safemode: Fuses OK (E:05, H:DA, L:FF)

avrdude done.  Thank you.

Good luck!

avrdude: Version 6.1, compiled on Mar 27 2018 at 01:00:08
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

     System wide configuration file is "/usr/share/arduino-dock/avrdude.conf"
     User configuration file is "/root/.avrduderc"
     User configuration file does not exist or is not a regular file, skipping

     Using Port                    : gpio
     Using Programmer              : linuxgpio
     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 : linuxgpio
     Description     : Use the Linux sysfs interface to bitbang GPIO lines
     Pin assignment  : /sys/class/gpio/gpio{n}
       RESET   = ~19
       SCK     =  15
       MOSI    =  16
       MISO    =  17

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0xff8dff
avrdude: Expected signature for ATmega328P is 1E 95 0F
Double check chip, or use -F to override this check.

avrdude done. Thank you.

executing avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c linuxgpio -P gpio -n -v

3x gives:

1st run: avrdude: Device signature = 0xfff1ff
next run: avrdude: Device signature = 0x318f7a
final run: avrdude: Device signature = 0xffc840

I'm afraid the signature bytes on an ATmega328P (on any ATmega) are not writable with normal programming instructions. Please correct me if I'm wrong.
I haven't tested the next speculative command - if you think you can try it on your own risk :
avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c linuxgpio -P gpio -v -U signature:w:0x1E,0x95,0x0F:m
Most probably it'll fail:
avrdude: writing signature (3 bytes)
avrdude: verification error

I'm very sorry - I have no more idea.
Maybe one of our @administrators will say some cleverness to you.

Good luck.

root@Omega-:~# avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c
linuxgpio -P gpio -v -F -U signature:w:0x1E,0x95,0x0F:m

avrdude: Version 6.1, compiled on Mar 27 2018 at 01:00:08
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

     System wide configuration file is "/usr/share/arduino-dock/avrdude.conf"
     User configuration file is "/root/.avrduderc"
     User configuration file does not exist or is not a regular file, skipping

     Using Port                    : gpio
     Using Programmer              : linuxgpio
     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 : linuxgpio
     Description     : Use the Linux sysfs interface to bitbang GPIO lines
     Pin assignment  : /sys/class/gpio/gpio{n}
       RESET   = ~19
       SCK     =  15
       MOSI    =  16
       MISO    =  17

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0xff6323
avrdude: Expected signature for ATmega328P is 1E 95 0F
avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5
avrdude: reading input file "0x1E,0x95,0x0F"
avrdude: writing signature (3 bytes):

Writing | ################################################## | 100% 0.00s

avrdude: 3 bytes of signature written
avrdude: verifying signature memory against 0x1E,0x95,0x0F:
avrdude: load data signature data from input file 0x1E,0x95,0x0F:
avrdude: input file 0x1E contains 3 bytes
avrdude: reading on-chip signature data:

Reading | ################################################## | 100% 0.00s

avrdude: verifying ...
avrdude: 3 bytes of signature verified

avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5
avrdude: safemode: Fuses OK (E:05, H:DA, L:FF)

avrdude done. Thank you.

BUT, it didn't change anything:

root@Omega-:~# avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c
linuxgpio -P gpio -v

(output muted for brevity)

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0xe01cff
avrdude: Expected signature for ATmega328P is 1E 95 0F
Double check chip, or use -F to override this check.

avrdude done. Thank you.

Seems like i need to burn a new boot loader, by using a 2nd ardrino as an "Ardino as ISP" programmer.

https://learn.sparkfun.com/tutorials/installing-an-arduino-bootloader.

The correct bootloader code is required for the atmega328p to accept programming from the serial port.

I wonder if the omega has access to the ICSP port. If not, i have a spare uno i could use as a programmer, but i am unsure which IDE settings to use, as the example in the link is for uno to uno.

https://www.arduino.cc/en/Tutorial/ArduinoISP

the procedure i used was:

upload ardrinoISP sketch to a spare Ardrino uno.

remove all connections and omega2+ from the ardino dock2.

connected the uno to the dock2 icsp port as shown in the 1st link.

set ardrino IDE to board "Ardrino/Genuino Uno"
set ardrino IDE programmer to "Ardino as ISP"
set port to /dev/tty/ACMO

selected "burn bootloader"

disconnected the uno.

reinstalled the omega2+

now the dock2 is programmable via the omega2+ using

set ardrino IDE to board "Ardrino/Genuino Uno"

and

Programmer "AVRISP mII"

via the network port

root@Omega-:~# avrdude -C /usr/share/arduino-dock/avrdude.conf -p atmega328p -c linuxgpio -P gpio -n -v

reports consistently:

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e950f
avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5

avrdude: safemode: lfuse reads as FF
avrdude: safemode: hfuse reads as DA
avrdude: safemode: efuse reads as 5
avrdude: safemode: Fuses OK (E:05, H:DA, L:FF)

avrdude done. Thank you.

Onion's official Arduino IDE setting (IDE >> Tools) is different than yours:

Board: "Onion Arduino Dock"
Port: "Omega-XXXX at_IP_address (Arduino/Genuino Uno)"
Programmer: "irrelevant"

vs.

Board "Ardrino/Genuino Uno"
Port: "network port"
Programmer "AVRISP mII"

But if this is working out for you ... that's your call.

Footnote:
I'm sorry the original cause of the error was not revealed after all. I wouldn't want to reproduce it intentionally but if I accidentally stumble upon this error I'll try your method too.