Wacky unknown pointer issues.

Projects Programming
3

The code you suggested gives a compiler error.

But the pointer definitely points to something. The code starts off and runs fine at the start. The correct value is displayed for a while. However, after some time, the value suddenly changes. I am not sure if the Arduino itself is moving memory locations or if passing a pointer into a function asking for an array is causing something to go crazy. Here is the function I am passing the pointer into:

void CubeControl::writeLayer(byte layer[], byte col, unsigned int duration)
{
    //Set reset pin to high, to allow writing. Low is active reset in shift registers.
    for (int chips = 0; chips < numRegisters; chips++) 
    {
        digitalWrite(registerResetPin[chips], HIGH);
    }
    
    //Turn layer pin to LOW to allow current flow
    digitalWrite(layerPin[col], LOW);
    
    for (int chips = 0; chips < numRegisters; chips++) 
    {
        shiftOut(registerDataPin[chips], registerClockPin[chips], LSBFIRST, layer[chips]);
    }
    
    //Delay the output so that you can actually see the output.
    delay(duration);
    
    //Reset the shift registers. Helps avoid bad data.
    for (int chips = 0; chips < numRegisters; chips++) 
    {
        digitalWrite(registerResetPin[chips], LOW);
    }
    
    //Turns off the layer.
    digitalWrite(layerPin[col], HIGH);
    
    return;
}