I finished building my zynthian based on the v2 kit on Monday. After having successfully carried out the first checks, I realized that the controllers 1 and 2 did not work.
Since it seemed to me that I had done everything right, I preferred first to contact the Zynthian Project Coordinator because I thought there was some defective component…
Following his answers and valuable suggestions, I re-checked the connections involved in the failed operation of controllers 1 and 2 and discovered that RBPi’s pin 36 (INTA pin) was not perfectly soldered and, under the stress of the connection cable, there was no more continuity . Once the welding is done again, the problem is gone.
Now everything works!
I wanted to share this experience to suggest that you check all connections very very carefully.