jchristensen / mini1284

A minimal breadboard-friendly design for the ATmega1284P MCU

The Mighty Mini 1284P

A minimal breadboard-friendly design for the ATmega1284P MCU, named after maniacbug's "mighty-1284p" Arduino core, in recognition of his contribution to the Arduino community. It has all necessary support components, ICSP and FTDI headers, and all GPIO pins are brought out to headers.

05May2014 - An updated version of maniacbug's mighty-1284p core based on Arduino 1.0.5 is available here.

Printed circuit boards can be ordered through OSH Park.

A bill of materials is available on Mouser.

I'd be interested to hear from anyone that builds one.

CC BY-SA

"The Mighty Mini 1284P" by Jack Christensen is licensed under CC BY-SA 4.0.

mini1284's Issues

hi, i am happy with the

v1.0 now i found at osh park v1.1
what ist different ?
is there a link to the changes?

need help with optiboot @22.1184 MHz & 921600 Baud

befor for all of my 5 mighty 1284p ich use Optiboot for 1M @16mhz

now i change the crytal up to 22.1184 MHz, it works but i must build a new bootloader and i don't know how.

make (winavr) with target atmega1284p give a error

C:\optiboot>make atmega1284
/usr/local/avr/bin/avr-gcc -g -Wall -Os -fno-inline-small-functions -fno-split-w
ide-types -mshort-calls -mmcu=atmega1284p -DF_CPU=22118400L '-DLED_START_FLASHE
S=3' '-DBAUD_RATE=115200' '-DBIGBOOT' -c -o optiboot.o optiboot.c
process_begin: CreateProcess(NULL, /usr/local/avr/bin/avr-gcc -g -Wall -Os -fno-
inline-small-functions -fno-split-wide-types -mshort-calls -mmcu=atmega1284p -DF
_CPU=22118400L -DLED_START_FLASHES=3 -DBAUD_RATE=115200 -DBIGBOOT -c -o optiboot
.o optiboot.c, ...) failed.
make (e=3): Das System kann den angegebenen Pfad nicht finden.
make: *** [optiboot.o] Error 3

path error, but wich path why ?
@win there is no /usr/local?

in avr studio 4.18 sr3 is a warning
../optiboot.c:256: warning: 'flash_led' declared 'static' but never defined

but i think that doesn't interessed

build was ok for hex but it doesn't work
i don't know where i must change the baudrate for 921600 Baud and how put it in the boards.txt in arduino