Revisions

• 1.0: First version from which i ordered boards from dirtypcbs. All wanted functions were integrated.
• 2.0: There were a nasty error in the board. Because i didn't have the Discovery Board at hand when i designed the board i assumed the pin headers are on top of the board. But i found out they are at the bottom. So i had to redesign the board to fix this bug.
• 2.1: The jumper selection of the "direction" signals was not correct. I used PE9 and PE10 but it was PE10 and PE11. Was only a minor fix to the board because PE10 is the standard signal.
• 2.2: After changing the pin headers in v2.0 the spacing between them were not correct. The distance between them had to be 2.54mm nearer to each other which is now fixed.