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µ == Micro
ATtiny85
Boot Loader
https://github.com/micronucleus/micronucleus
Datasheet
Purchase
- https://www.digikey.com/product-detail/en/microchip-technology/ATTINY85-20PU/ATTINY85-20PU-ND
- http://www.mouser.com/ProductDetail/Microchip-Technology-Atmel/ATtiny85-20PU
- https://www.sparkfun.com/products/9378
DUMPS
Probing a factory fresh unprogrammed chip with a Bus Pirate per http://dangerousprototypes.com/docs/Bus_Pirate_AVR_ProgrammingChange note change to "-p t85" vs example provided.
$ avrdude -c buspirate -P /dev/ttyUSB0 -p t85 -v
avrdude: Version 6.3, compiled on Aug 9 2017 at 12:31:56
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/home/neo/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyUSB0
Using Programmer : buspirate
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 1 0 0 0 0 0x00 0x00
Programmer Type : BusPirate
Description : The Bus Pirate
Attempting to initiate BusPirate binary mode...
BusPirate binmode version: 1
BusPirate SPI version: 1
avrdude: Paged flash write enabled.
AVR Extended Commands not found.
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.09s
avrdude: Device signature = 0x1e930b (probably t85)
avrdude: safemode: hfuse reads as DF
avrdude: safemode: efuse reads as FF
avrdude: safemode: hfuse reads as DF
avrdude: safemode: efuse reads as FF
avrdude: safemode: Fuses OK (E:FF, H:DF, L:62)
BusPirate is back in the text mode
avrdude done. Thank you.
\/ Erronious dumps returning not exactly expected results \/
Probing with a Bus Pirate, and NO CHIP CONNECTED
$ avrdude -c buspirate -P /dev/ttyUSB0 -p attiny2313 -v
avrdude: Version 6.3, compiled on Aug 9 2017 at 12:31:56
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/home/neo/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyUSB0
Using Programmer : buspirate
AVR Part : ATtiny2313
Chip Erase delay : 9000 us
PAGEL : PD4
BS2 : PD6
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 128 4 0 4000 4500 0xff 0xff
flash 65 6 32 0 yes 2048 32 64 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 : BusPirate
Description : The Bus Pirate
Attempting to initiate BusPirate binary mode...
BusPirate binmode version: 1
BusPirate SPI version: 1
avrdude: Paged flash write enabled.
AVR Extended Commands not found.
avrdude: initialization failed, rc=-2
Double check connections and try again, or use -F to override
this check.
BusPirate is back in the text mode
avrdude done. Thank you.
Probing with chip connected, and using wrong partno (-p attiny2313) per default example.
$ avrdude -c buspirate -P /dev/ttyUSB0 -p attiny2313 -v
avrdude: Version 6.3, compiled on Aug 9 2017 at 12:31:56
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/etc/avrdude.conf"
User configuration file is "/home/neo/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyUSB0
Using Programmer : buspirate
AVR Part : ATtiny2313
Chip Erase delay : 9000 us
PAGEL : PD4
BS2 : PD6
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 128 4 0 4000 4500 0xff 0xff
flash 65 6 32 0 yes 2048 32 64 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 : BusPirate
Description : The Bus Pirate
Attempting to initiate BusPirate binary mode...
BusPirate binmode version: 1
BusPirate SPI version: 1
avrdude: Paged flash write enabled.
AVR Extended Commands not found.
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.09s
avrdude: Device signature = 0x1e930b (probably t85)
avrdude: Expected signature for ATtiny2313 is 1E 91 0A
Double check chip, or use -F to override this check.
BusPirate is back in the text mode
avrdude done. Thank you.