Analog pin numbering

[drf5n]

https://github.com/Traumflug/Generation_7_Electronics/blob/master/arduino%20support/Gen7-dist/variants/gen7/pins_arduino.h#L37 and https://github.com/Traumflug/Generation_7_Electronics/blob/master/arduino%20support/Gen7-dist/variants/gen7/pins_arduino.h#L50 conflict with the diagram at https://github.com/Traumflug/Generation_7_Electronics/blob/master/arduino%20support/Gen7-dist/variants/gen7/pins_arduino.h#L73

Should the analog pins number upwards from digital 24 or downwards from Digital 31 like from http://sanguino.cc/hardware ?

[Traumflug]

Interesting observation you did, nobody noticed this so far. There's another diagram, one I actually maintained over the versions: http://reprap.org/wiki/Gen7_Board-AVR_1.5#Pinout It apparently matches the diagram in your third link, the numbering found in the ATmega644P data sheet (page 2) and also the Sanguino silk screen.

The Arduino code in the Gen7-dist folder is copied from somewhere, IIRC from the Sanguino addition. As I investigated it not more than making sure it compiles, it looks like this mismatch was in the Sanguino add-on already.

Before changing anything keep in mind, Marlin and Reptier firmwares both work with this library already, so doing changes shouldn't break these two. Teacup doesn't use the library at all.

Other than that, matching the data sheet is probably the best idea.

[drf5n]

I ran into a problem trying to compile Marlin from the command line with a:

HARDWARE_MOTHEBOARD=13 ARDUINO_VERSION=022 make

that didn't like the https://github.com/ErikZalm/Marlin/blob/Marlin_v1/Marlin/Marlin.h#L34 line.

[Traumflug]

Not surprising, the stuff coming with the Git repo is the latest Gen7 Arduino IDE Support and looking at http://reprap.org/wiki/Gen7_Arduino_IDE_Support , it's compatible with Arduino 1.0.3 and later, only. Older versions are linked there (and you can combine a newer bootloader with an older library).