Olimex ISP500 (AVR-ISP500-TINY) configs for Arduino

Notes for AVR-ISP500-TINY when used as ISP programmer via Arduino IDE. Thus these notes are not for VisualGDB, Atmel Studio, straight AVRDude.

For ATmega and ATtiny.

Tested on macOS 12.6 and MSW10, Arduino IDE 2.1.0 (CLI 0.32.3)

Programmer

Firmware

Follow manual, use MSW to burn in latest Olimex firmware (1.07). Already done on our units.

Programmer definition

Located at

• ~/Library/Arduino15/packages/arduino/hardware/avr/<platform-version>/programmers.txt
• %LOCALAPPDATA%\Arduino15\packages\arduino\hardware\avr\<platform-version>\programmers.txt

As of writing platform-version is 1.8.6

programmers.txt

olimexisp500tiny.name=Olimex AVR-ISP500-TINY
olimexisp500tiny.communication=serial
olimexisp500tiny.protocol=stk500v2
olimexisp500tiny.program.protocol=stk500v2
olimexisp500tiny.program.tool=avrdude
olimexisp500tiny.program.tool.default=avrdude
olimexisp500tiny.program.extra_params=-P{serial.port}

Boards

ATmega328p

ATmega328p (8 Mhz internal)

Use hex found in breadboard-1-6-x.zip linked from this Arduino tut.

Update board definition

boards.txt

##############################################################

atmega328bb.name=ATmega328p (8 MHz internal) 1.8.4

atmega328bb.upload.protocol=arduino
atmega328bb.upload.maximum_size=30720
atmega328bb.upload.speed=57600

atmega328bb.bootloader.low_fuses=0xE2
atmega328bb.bootloader.high_fuses=0xDA
atmega328bb.bootloader.extended_fuses=0xFD

atmega328bb.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
# 1.8.4. warning You probably want to use 0xff instead of 0x3f (double check with your datasheet first).
atmega328bb.bootloader.unlock_bits=0x3F
# 1.8.4. warning You probably want to use 0xcf instead of 0x0f (double check with your datasheet first).
atmega328bb.bootloader.lock_bits=0x0F

atmega328bb.build.mcu=atmega328p
atmega328bb.build.board=AVR_ATMEGA328BB
atmega328bb.build.f_cpu=8000000L
atmega328bb.build.core=arduino:arduino
atmega328bb.build.variant=arduino:standard

atmega328bb.bootloader.tool=arduino:avrdude
atmega328bb.upload.tool=arduino:avrdude

##############################################################

atmega328bbo.name=ATmega328p (8 MHz internal) 1.6.x

atmega328bbo.upload.protocol=arduino
atmega328bbo.upload.maximum_size=30720
atmega328bbo.upload.speed=57600

atmega328bbo.bootloader.low_fuses=0xE2
atmega328bbo.bootloader.high_fuses=0xDA
atmega328bbo.bootloader.extended_fuses=0x05

atmega328bbo.bootloader.file=atmega/ATmegaBOOT_168_atmega328_pro_8MHz.hex
atmega328bbo.bootloader.unlock_bits=0x3F
atmega328bbo.bootloader.lock_bits=0x0F

atmega328bbo.build.mcu=atmega328p
atmega328bbo.build.board=AVR_ATMEGA328BBO
atmega328bbo.build.f_cpu=8000000L
atmega328bbo.build.core=arduino:arduino
atmega328bbo.build.variant=arduino:standard

atmega328bbo.bootloader.tool=arduino:avrdude
atmega328bbo.upload.tool=arduino:avrdude

ATmega328p (other clock sources & speeds)

Just change low byte fuses - see manual

• 8.2 Clock Sources
• 8.3 Low Power Crystal Oscillator
• 8.5 Low Frequency Crystal Oscillator
• a.o.

Here is a good summary by Martyn Currey.

And high byte fuses.

If you are making "Uno clone", then just use UNO definitions.

ATmega328p notes

Consider dropping Arduino bootloader altogether ^_^

ATtiny family

ATTinyCore by Spence Konde & Co. works OOB with Olimex as ISP.

Do not use ATtiny by David A. Mellis.

Avoid Arduino functions, work with registers, mkay ^_^