Please check, if you have the -> fastio.h file in the repetierfiemware files.
The simplest method is, that you configure your Firmware Settings (look in your configuration.h) on this Webtool:
[
www.repetier.com]
Download complete firmware incl. these settings // unzip it and try it.
if it is work, it is Ok. If not plese give us a feedback.
Reguards
Angelo
Mein Club: [
hackerspace-ffm.de]
RADDS-Shield -> Commercial [
max3dshop.org]