Tested and fixed raw dmx. Working now with a DIY USB -> FT232 -> MAX485 -> DMX device (very similar to Enttec Open DMX). For some reason the max length at 513 didn't work, not entirely sure why. Changing DMX_DATA_LENGTH to 494 or less made everything nice and stable (could be caused by other things though).
Tested and fixed raw dmx. Working now with a DIY USB -> FT232 -> MAX485 -> DMX device (very similar to Enttec Open DMX). For some reason the max length at 513 didn't work, not entirely sure why. Changing DMX_DATA_LENGTH to 494 or less made everything nice and stable (could be caused by other things though).