I have a OSPi v1.3 board and need to add the expansion board. I have a v 1.1 expansion board which came with a straight through cable. After connecting the two boards and powering up the OSPi, it would no longer boot. I replaced the Raspberry Pi board, but then could not turn on any zones. After replacing the 74HC595, the OSPi board is working great again.
Should this combination of boards work?