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I'm trying to program 8 ATTiny85's I purchased from ebay but I can't seem to get any response from them.

I have tried following several guides and even tried to use High Voltage Serial Programming using this guide on one of the chips with no success.

I've set up my UNO as a programmer and using the debugging lights can see that part is working. But I keep getting the response "Device signature = 0xffffff" on all 8 chips.

The latest thing I have been trying to do to check that they are even working is burn bootloader with the following command

C:\WinAVR\bin> .\avrdude -v -p t85 -c stk500v1 -P COM13 -b 19200 -e -U efuse:w:0xff:m -U hfuse:w:0xdf:m -Ulfuse:w:0x62:m -F -B 5

and this response:

avrdude.exe: 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 "C:\WinAVR\bin\avrdude.conf"
 Using Port : COM13
 Using Programmer : stk500v1
 Overriding Baud Rate : 19200
 Setting bit clk period : 5.0
 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 : 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.exe: please define PAGEL and BS2 signals in the configuration file for part ATtiny85
avrdude.exe: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.06s
avrdude.exe: Device signature = 0xffffff
avrdude.exe: Yikes! Invalid device signature.
avrdude.exe: Expected signature for ATtiny85 is 1E 93 0B
avrdude.exe: safemode: lfuse reads as FF
avrdude.exe: safemode: hfuse reads as FF
avrdude.exe: safemode: efuse reads as FF
avrdude.exe: erasing chip
avrdude.exe: please define PAGEL and BS2 signals in the configuration file for part ATtiny85
avrdude.exe: reading input file "0xff"
avrdude.exe: writing efuse (1 bytes):
Writing | ################################################## | 100% 0.02s
avrdude.exe: 1 bytes of efuse written
avrdude.exe: verifying efuse memory against 0xff:
avrdude.exe: load data efuse data from input file 0xff:
avrdude.exe: input file 0xff contains 1 bytes
avrdude.exe: reading on-chip efuse data:
Reading | ################################################## | 100% 0.01s
avrdude.exe: verifying ...
avrdude.exe: 1 bytes of efuse verified
avrdude.exe: reading input file "0xdf"
avrdude.exe: writing hfuse (1 bytes):
Writing | | 0% 0.00s ***failed;
Writing | ################################################## | 100% 0.16s
avrdude.exe: 1 bytes of hfuse written
avrdude.exe: verifying hfuse memory against 0xdf:
avrdude.exe: load data hfuse data from input file 0xdf:
avrdude.exe: input file 0xdf contains 1 bytes
avrdude.exe: reading on-chip hfuse data:
Reading | ################################################## | 100% 0.03s
avrdude.exe: verifying ...
avrdude.exe: verification error, first mismatch at byte 0x0000
 0xdf != 0xff
avrdude.exe: verification error; content mismatch
avrdude.exe: safemode: lfuse reads as FF
avrdude.exe: safemode: hfuse reads as FF
avrdude.exe: safemode: efuse reads as FF
avrdude.exe: safemode: hfuse changed! Was df, and is now ff
Would you like this fuse to be changed back? [y/n]

If I enter 'y' it gets stuck in a loop trying to change the hfuse.

Any help would be greatly appreciated.

EDIT:

Any time I have run the below command on the chips

C:\WinAVR\bin> .\avrdude -v -p t85 -c stk500v1 -P COM13 -b 19200

This has been the response

avrdude.exe: 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 "C:\WinAVR\bin\avrdude.conf"
 Using Port : COM13
 Using Programmer : stk500v1
 Overriding Baud Rate : 19200
 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 : 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.exe: please define PAGEL and BS2 signals in the configuration file for part ATtiny85
avrdude.exe: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.07s
avrdude.exe: Device signature = 0xffffff
avrdude.exe: Yikes! Invalid device signature.
 Double check connections and try again, or use -F to override
 this check.
avrdude.exe done. Thank you.
smyslov
1851 gold badge2 silver badges8 bronze badges
asked Jul 28, 2015 at 2:15
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  • 1
    \$\begingroup\$ Either you're making a systematic error in wiring up the connections, or you bought a batch of fake or defective chips. Both scenarios have been known to happen... \$\endgroup\$ Commented Jul 28, 2015 at 2:38
  • 2
    \$\begingroup\$ If you have mistakenly reprogramming the fuse-bits such that the device is expecting an external clock then the results you are observing are about what should be expected. However, if you have since tried the HVPP, as you say, this should clear any fuses and reconfigure the device to use the internal oscillator. Microtherion could be right, unfortunately. \$\endgroup\$ Commented Jul 28, 2015 at 3:09
  • \$\begingroup\$ The best advice is to not buy parts on ebay. Use a reputable dealer like digikey, or even from places like Sparkfun or Adafruit. Also, if you plan on programming bare chips, don't use Arduino as a programmer... get an actual programmer from Atmel. Even the AVR pocket programmer from Sparkfun will work fine. \$\endgroup\$ Commented Jul 28, 2015 at 3:37
  • \$\begingroup\$ Are you trying to program all of them at once? To see if you can even talk, just do AVRDUDE -p <PART> -c <PROGRAMMER> -P <port> -V .... the -V will return Verbose information from the chip like the device signature and current fuse bytes. You shouldn't need to use the -b option unless you have already changed the clock timing on the chips. \$\endgroup\$ Commented Jul 28, 2015 at 3:40
  • \$\begingroup\$ If I don't specify the board rate I get the following response: "avrdude.exe: stk500_getsync(): not in sync: resp=0x00" and the error and heartbeat LED's are set to high. \$\endgroup\$ Commented Jul 28, 2015 at 11:47

1 Answer 1

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The issue appears to be with the Arduino UNO as an ISP. I connected up a USBASP device and ran the following command: 

.\avrdude -v -p t85 -c usbasp

and got the following response:

avrdude.exe: 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 "C:\WinAVR\bin\avrdude.conf"
 Using Port : lpt1
 Using Programmer : usbasp
 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 : usbasp
 Description : USBasp, http://www.fischl.de/usbasp/
avrdude.exe: auto set sck period (because given equals null)
avrdude.exe: warning: cannot set sck period. please check for usbasp firmware update.
avrdude.exe: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.01s
avrdude.exe: Device signature = 0x1e930b
avrdude.exe: safemode: lfuse reads as 62
avrdude.exe: safemode: hfuse reads as DF
avrdude.exe: safemode: efuse reads as FF
avrdude.exe: safemode: lfuse reads as 62
avrdude.exe: safemode: hfuse reads as DF
avrdude.exe: safemode: efuse reads as FF
avrdude.exe: safemode: Fuses OK
avrdude.exe done. Thank you.

I have now successfully programmed a couple of the ATTiny85's with the slightly modified Blink sketch using the Arduino IDE (1.6.5)

I still have no idea why the Arduino UNO would not be working as a programmer.

answered Jul 28, 2015 at 12:57
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