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Atmega328p "entering programming mode Failed!"

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neoirto

Posted: Sep 25, 2011 - 02:49 PM

Joined: Jun 12, 2011
Posts: 42

Hi all,

This morning, my atmega328p don't accept anymore any communication with avr studio 4 + AVRIS mkII USB programmer.
The problem appears after a first programming, that was successful until the "verify" step, that failed.
After that, no com was possible (even the "read signature").
I have to say that before that problem, I sometimes encounter another kind of reccurent problem when my code was above "90.0% full" in FLASH space (very space reaction : EEPROM was corrupted after a FLASH PROGRAMMING above 90%, whithout any programming of the eeprom. I had to PROGRAM the EEPROM to correct eeprom corrupted data, then rePROGRAM FLASH below 90.0% to get it to work nicely.
It was very strange behaviour, no ?

What can I do now ?

Thanks for your help !

JohanEkdahl

Posted: Sep 25, 2011 - 08:46 PM

Joined: Mar 27, 2002
Posts: 18599
Location: Lund, Sweden

Standard question 1A in these cases: Did you by any chance order a change of the AVRs fuses? Especially the clock selection fuses?

What actual clock source (internal RC, external crystal etc...) where you relying on to get the AVR running (and programmable)?

neoirto

Posted: Sep 25, 2011 - 09:17 PM

Joined: Jun 12, 2011
Posts: 42

Thanks for your answer Johan,

The clock source is external crystal : Atmega328p is also running to 20 MHz.
Your question is natural, but of course, the fuses are still constant for a while !

The really only thing that happen just before it crashed is the program I load into the flash (no eeprom change, no hardware change...).

If you see any 1B question or explanation, your welcome Smile

neoirto

Posted: Sep 26, 2011 - 01:17 PM

Joined: Jun 12, 2011
Posts: 42

Here is a bit more : this is the best I can do by myself. I'm a beginner in AVR chip !

Code:

C:\Users\....>avrdude -c avrisp2 -p m328p -P usb -F

avrdude: stk500v2_command(): command failed

avrdude: stk500v2_command(): unknown status 0xc9

avrdude: stk500v2_program_enable(): cannot get connection status

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 ATMEGA328P is 1E 95 0F

avrdude done.  Thank you.

Code:

C:\Users\...>avrdude -c avrisp2 -p m328p -P usb -v

avrdude: Version 5.10, compiled on Sep  9 2010 at 15:36:47

         Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/

         Copyright (c) 2007-2009 Joerg Wunsch

         System wide configuration file is "C:\Program Files (x86)\Atmel\AVR Too

ls\AVR Toolchain\bin\avrdude.conf"

         Using Port                    : usb

         Using Programmer              : avrisp2

avrdude: usbdev_open(): Found AVRISP mkII, serno: 000200055217

         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  Max W   ReadBack

           ----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- --- -- ---------

           eeprom        65     5     4    0 no       1024    4      0  3600  36 00 0xff 0xff

           flash         65     6   128    0 yes     32768  128    256  4500  45 00 0xff 0xff

           lfuse          0     0     0    0 no          1    0      0  4500  45 00 0x00 0x00

           hfuse          0     0     0    0 no          1    0      0  4500  45 00 0x00 0x00

           efuse          0     0     0    0 no          1    0      0  4500  45 00 0x00 0x00

           lock           0     0     0    0 no          1    0      0  4500  45 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 : STK500V2

         Description     : Atmel AVR ISP mkII

         Programmer Model: AVRISP mkII

         Hardware Version: 1

         Firmware Version Master : 1.13

         Vtarget         : 5.2 V

         SCK period      : 8.00 us

avrdude: stk500v2_command(): command failed

avrdude: stk500v2_command(): unknown status 0xc9

avrdude: stk500v2_program_enable(): cannot get connection status

avrdude: initialization failed, rc=-1

         Double check connections and try again, or use -F to override

         this check.

avrdude done.  Thank you.

What kind of test could help for diagnostic ?

Thanks by advance

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