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I have an Atmega328p on a board that I want to program using an Arduino programmer. I've got the programmer working to program other Arduino's over ICSP header, but when trying to use the same settings to avrdude to read/set the fuses of the bare MCU with oscillator I get the following:

❯❯❯ avrdude -v -p atmega328p -b 19200 -P /dev/cu.wchusbserial213240 -c stk500v1 ⏎ master avrdude: Version 6.3, compiled on Sep 18 2017 at 20:31:51 Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/ Copyright (c) 2007-2014 Joerg Wunsch System wide configuration file is "/usr/local/Cellar/avrdude/6.3/etc/avrdude.conf" User configuration file is "/Users/viktor/.avrduderc" User configuration file does not exist or is not a regular file, skipping Using Port : /dev/cu.wchusbserial213240 Using Programmer : stk500v1 Overriding Baud Rate : 19200 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 : STK500 Description : Atmel STK500 Version 1.x firmware Hardware Version: 2 Firmware Version: 1.18 Topcard : Unknown Vtarget : 0.0 V Varef : 0.0 V Oscillator : Off SCK period : 0.1 us avrdude: AVR device initialized and ready to accept instructions Reading | ################################################## | 100% 0.08s avrdude: Device signature = 0x000000 (retrying) Reading | ################################################## | 100% 0.08s avrdude: Device signature = 0x000000 (retrying) Reading | ################################################## | 100% 0.08s avrdude: Device signature = 0x000000 avrdude: Yikes! Invalid device signature. Double check connections and try again, or use -F to override this check. avrdude done. Thank you.

I've checked the soldering as good as I can and it seems to be right. I have a 10K pullup on reset, an oscillator with caps. I'm suspecting I might have fried the MCU when soldering or something - is there anything simple I can check?

  • All PWR connections check out
  • I've checked the oscillator with a scope and it isn't oscillating, but I'm thinking that is normal since it's a bare chip that I'm trying to set the fuses to use the external crystal? The oscillator is at least connected correctly.
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  • Try using the "burn bootloader" function inside the IDE. That also sets the fuses. Commented Jan 11, 2018 at 18:39
  • I've done that too. The first thing that menu item does though is actually calling avrdude just like that - I think I actually looked at the verbose log in the IDE to get the params right. Commented Jan 11, 2018 at 21:35

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Reset to default
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It turned out it was a bit of bad soldering on the MCU. This same msg you'll get if just leaving the ICSP floating.

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  • I'm glad you found a solution, but could you accept this (your own) answer as the solution? This question just got bumped to the frontpage and actually is already solved. Commented Mar 18, 2018 at 16:38

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