BT Controller on PPSSPP

[GuilhermeGS2]

I used the app on BT Controller PPSSPP and got success. I was able to configure almost all buttons, only the circle button. I used as a base control PSX HD that I downloaded the application itself. The d-pad buttons, R1 / 2, L1 / 2, Start and Select was left as the rest looked like this:

Triangle: KEYCODE_BUTTON_Y
Square: KEYCODE_BUTTON_X
X: KEYCODE_BUTTON_CENTER

Only the circle that no one thought would work, algem can help me?