In case you have a trouble for updating the tap, perform uninstalling of the related tools and osx-cross/avr tap:
brew remove avr-binutils avr-gcc
brew untap osx-cross/avrFor installing the tap, do the following:
brew tap osx-cross/avr
brew install avr-gcc
# avrdude is under homebrew-core
brew install avrdude| #!/bin/sh | |
| # write a hex file to optiboot-enabled arduino | |
| avrdude -D -c arduino -p m168 -b 115200 -P /dev/cu.[target-device] -U flash:w:target-file.hex |
| #!/bin/sh | |
| # this is an example of writing the optiboot image to atmega168 | |
| # for ATmega168 with AVR Dragon in HVPP (note *PP*) mode | |
| # NOTE: the -P should be changed appropriately | |
| # Check out the lock/efuse/hfuse/lfuse bits | |
| # Note 2: hfuse set to preserve EEPROM through chip erase | |
| avrdude -D -v -p m168 -c dragon_pp \ | |
| -P usb -e -u -U lock:w:0xff:m \ | |
| -U efuse:w:0xfc:m -U hfuse:w:0xD5:m -U lfuse:w:0xF7:m \ | |
| -U flash:w:optiboot_atmega168.hex \ | |
| -U lock:w:0xef:m |
| #!/bin/sh | |
| # write a hex file to optiboot-enabled arduino | |
| avrdude -D -c arduino -p m328p -b 115200 -P /dev/cu.[target-device] -U flash:w:target-file.hex |
| #!/bin/sh | |
| # this is an example of writing the optiboot image to atmega328 | |
| # for ATmega328p with AVR Dragon in HVPP (note *PP*) mode | |
| # NOTE: the -P should be changed appropriately | |
| # Check out the lock/efuse/hfuse/lfuse bits | |
| # Note 2: must add -F flag as an workaround for the Device ID issue | |
| # (removed from this script) | |
| # Note 3: hfuse set to preserve EEPROM through chip erase | |
| avrdude -D -v -p m328p -c dragon_pp \ | |
| -P usb -e -u -U lock:w:0xff:m \ | |
| -U efuse:w:0xfd:m -U hfuse:w:0xd6:m -U lfuse:w:0xff:m \ | |
| -U flash:w:optiboot_atmega328p.hex \ | |
| -U lock:w:0xef:m |
vim -u NONE -b eeprom.bin
:set noeol
:% !xxd
[hex dump format, do the editing]
:% !xxd -r
:w
| :103E00001F92CDB7DEB7112484B714BE982F9D70D2 | |
| :103E100009F0D6D085E08093810082E08093C000D5 | |
| :103E200088E18093C10086E08093C20080E18093A6 | |
| :103E3000C4008EE0B0D0259A86E020E33CEF91E00C | |
| :103E4000309385002093840096BBB09BFECF1D9AD3 | |
| :103E5000A8958150A9F7812C912C13E001E025E071 | |
| :103E6000F22E31E1E32E8BD0813471F488D0898336 | |
| :103E700098D08981823811F482E004C0813809F435 | |
| :103E80006DC083E075D071C0823411F484E103C049 | |
| :103E9000853419F485E08DD068C0853549F46FD03C | |
| :103EA000D82E6DD08D2C912C982A880C991C5CC032 | |
| :103EB000863521F484E07DD080E0E4CF843609F0BB | |
| :103EC00036C05DD05CD0D82E5AD0C82EA12CBB24D1 | |
| :103ED000B39455D0F50181935F01DE12FACF61D022 | |
| :103EE000F5E4CF1201C0FFCFF40117BFE89507B684 | |
| :103EF00000FCFDCFA401A0E0B1E02C911296CD0111 | |
| :103F00000197FC01808130E0382BFA01090107BFDD | |
| :103F1000E89511244E5F5F4FDA12EFCFF401F7BE40 | |
| :103F2000E89507B600FCFDCFE7BEE8951EC08437D4 | |
| :103F300071F425D024D0D82E22D033D05401F501ED | |
| :103F400085915F0115D0DA94D110F9CF0EC0853775 | |
| :103F500039F427D08EE10CD084E90AD086E092CFE4 | |
| :103F6000813511F488E017D01CD080E101D07BCFDF | |
| :103F70009091C00095FFFCCF8093C600089580917A | |
| :103F8000C00087FFFCCF8091C00084FD01C0A895D0 | |
| :103F90008091C6000895E0E6F0E098E19083808388 | |
| :103FA0000895EDDF803219F088E0F5DFFFCF84E17E | |
| :103FB000DFCFCF93C82FE3DFC150E9F7CF91F1CF27 | |
| :0C3FC000282E80E0E8DFE0E0FF270994F5 | |
| :023FFE000206B9 | |
| :0400000300003E00BB | |
| :00000001FF |
| :107E00001F92CDB7DEB7112484B714BE982F9D7092 | |
| :107E100009F0D7D085E08093810082E08093C00094 | |
| :107E200088E18093C10086E08093C20080E1809366 | |
| :107E3000C4008EE0B1D0259A86E020E33CEF91E0CB | |
| :107E4000309385002093840096BBB09BFECF1D9A93 | |
| :107E5000A8958150A9F7812C912C13E001E025E031 | |
| :107E6000F22E31E1E32E8CD0813479F489D08983EC | |
| :107E700099D08981823811F482E005C0813811F4EB | |
| :107E800086E001C083E075D071C0823411F484E1D2 | |
| :107E900003C0853419F485E08DD068C0853549F478 | |
| :107EA0006FD0D82E6DD08D2C912C982A880C991CCF | |
| :107EB0005CC0863521F484E07DD080E0E4CF843658 | |
| :107EC00009F036C05DD05CD0D82E5AD0C82EA12C77 | |
| :107ED000BB24B39455D0F50181935F01DE12FACF34 | |
| :107EE00061D0F5E4CF1201C0FFCFF40117BFE895D0 | |
| :107EF00007B600FCFDCFA401A0E0B1E02C911296E2 | |
| :107F0000CD010197FC01808130E0382BFA01090195 | |
| :107F100007BFE89511244E5F5F4FDA12EFCFF401EF | |
| :107F2000F7BEE89507B600FCFDCFE7BEE8951EC09A | |
| :107F3000843771F425D024D0D82E22D033D05401E8 | |
| :107F4000F50185915F0115D0DA94D110F9CF0EC0FB | |
| :107F5000853739F427D08EE10CD085E90AD08FE03F | |
| :107F600092CF813511F488E017D01CD080E101D088 | |
| :107F70007ACF9091C00095FFFCCF8093C600089502 | |
| :107F80008091C00087FFFCCF8091C00084FD01C0BC | |
| :107F9000A8958091C6000895E0E6F0E098E190830E | |
| :107FA00080830895EDDF803219F088E0F5DFFFCFA0 | |
| :107FB00084E1DFCFCF93C82FE3DFC150E9F7CF9142 | |
| :0E7FC000F1CF282E80E0E8DFE0E0FF270994F3 | |
| :027FFE00020679 | |
| :0400000300007E007B | |
| :00000001FF |
Remember the 1k BIGBOOT code image must be booted from byte address 0x7c00 in GNU or 0x3c00 in ATmega328p.
The hfuse value must be 0xDC if EESAVE is not enabled (=set to 0), 0xD4 if EESAVE is enabled.
Note well: fuse bit definition between ATmega168 and ATmega328p are different from each other!