question about setting up a controller

[GuilhermeGS2]

The emulator have a internal mapping in Settings->Control and Key Mapping. But that is crashing. Try to use a external aplication to map the buttons. I use USB/BT Joystick Center and Joy2Touch Server to simulate a touch in screen when press any button. I map all buttons of controller like the PPSSPP touch button. But need root. Using just the USB/BT Joystick Center, you can map the button with any key. The mapping key of PPSSPP is:

X: Button A
O: Button B
[ ]: Button X
/\: Button Y
L: L1
R: R1

The d-pads are normal. Do not have how to map the analog (only using the Joy2Touch Server).