PS2X Library with arudino 3.3v 8Mhz?

Hi,

When using PS2X Library with 5V Arduino Nano, it works fine. I try to convert it into wireless standalone controller, so I would like to go for Arduino 3.3V Mini Pro with 8 Mhz. Since I/O is 3.3V I should be able to skip the pullup resistors which i needed with 5V I/O.

The LED on PSX Controller is on, but I always get following message: "Unknown Controller type found No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips"

I assume some timings needs to be reconfigured, but I don't know which one and in which direction. Does anyone managed to get it run on 8Mhz and can provide values for CTRL_CLK, CTRL_CLK_HIGH, CTRL_BYTE_DELAY?

Any need for additional resistors?

Thanks, Butch

I made some progress.

Without using any resistors the gamepad is found with following settings:

define CTRL_CLK 10

define CTRL_BYTE_DELAY 6

sometimes the pad is not recognized at first trial, so I made a loop around the gamepad configuration and try it until it works:

        int error = -1;
    while (error != 0)
    {
        error = ps2x.config_gamepad(PS2_CLK, PS2_CMD, PS2_SEL, PS2_DAT, pressures, rumble);


        if (error == 0)
        {
            Serial.print("Found Controller, configured successful ");
            Serial.print("pressures = ");
            if (pressures)
                Serial.println("true ");
            else
                Serial.println("false");
            Serial.print("rumble = ");
            if (rumble)
                Serial.println("true)");
            else {
                Serial.println("false");
                Serial.println(
                        "Try out all the buttons, X will vibrate the controller, faster as you press harder;");
                Serial.println(
                        "holding L1 or R1 will print out the analog stick values.");
                Serial.println(
                        "Note: Go to www.billporter.info for updates and to report bugs.");
            }
        }
        else if (error == 1)
        {
            Serial.println(
                    "No controller found, check wiring, see readme.txt to enable debug. visit www.billporter.info for troubleshooting tips");
        }
        else if (error == 2)
        {
            Serial.println(
                    "Controller found but not accepting commands. see readme.txt to enable debug. Visit www.billporter.info for troubleshooting tips");
        }

        else if (error == 3)
        {
            Serial.println(
                    "Controller refusing to enter Pressures mode, may not support it. ");
        }

        delay(300);
      }