Tweener modifications

From GumstixDocsWiki

In its default configuration, the tweener board can't be used in conjuntion with the robostix. This happens because the robostix and the tweener are both trying to drive the RxD line into the gumstix.

This photo shows the back side of the tweener board. The serial connector is off on the right hand side.

If you cut the trace where the left red line is, then the RxD line will not be passed through to the daughter card. This allows the serial connector on the tweener board to be used instead of the one on the robostix (or console board).

If you cut the trace at the right, then the signal from the serial connector on the tweener board will be disconnected. This might be useful if you're using the tweener to get at additional signals for a JTAG or something and wish to use the serial console on the robostix or console board.

Only cut in one place or the other, NOT both.