toggle output of propeller with one input switch

gregmazarakis

I started to write a program in C using simpleIDE with different in- and outputs.
I define the inputs as integers like 'int button1=input(12);" and setting the output 17 with "high(17);"
I would like to have the same input toggling the output so that it comes on with the first push action and goes off with the following push-action.
Can anyone give me an example of how to do this??

Kye

Here's the basic idea:

#include "simpletools.h"

bool buttonStates[32]; // startup zero
bool buttonPressed[32]; // startup zero
bool buttonReleased[32]; // startup zero

void debounceButtons()
{
    static int buttonShifts[32]; // startup zero

    for(int i = 0; i < 32; i++)
    {
        buttonShifts = (buttonShifts << get_state(i));

        // Seen 32 one samples and was previously low
        if( (!(~buttonShifts)) && (!buttonStates[i]))
        {
            buttonStates[i] = true;

            if(!buttonPressed[i)]
            {
                buttonPressed[i] = true;
            }
        }

        // Seen 32 zero samples and was previously high
        if( (!buttonShifts) && buttonStates[i])
        {
            buttonStates[i] = false;

            if(!buttonReleased[i])
            {
                buttonReleased[i] = true;
            }
        }
    }
}

void getButtonState(int pin)
{
    return buttonStates[pin & 0x1F];
}

void getButtonPressed(int pin) // returns true once per button press
{
    if(buttonPressed[pin & 0x1F])
    {
        buttonPressed[pin & 0x1F] = false;

        return true;
    }

    return false;
}

void getButtonReleased(int pin) // returns true once per button release
{
    if(buttonReleased[pin & 0x1F])
    {
        buttonReleased[pin & 0x1F] = false;

        return true;
    }

    return false;
}

int main()
{
    low(17);

    for(;;)
    {
        waitcnt((CLKFREQ/1000)+CNT);

        debounceButtons();

        if(getButtonPressed(12))
        {
            toggle(17);
        }
    }
}