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fix setPin() for RP2040 #389

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fix setPin() for RP2040 #389

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16 changes: 13 additions & 3 deletions Adafruit_NeoPixel.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -3127,13 +3127,23 @@ if(is800KHz) {
@param p Arduino pin number (-1 = no pin).
*/
void Adafruit_NeoPixel::setPin(int16_t p) {
if (begun && (pin >= 0))
pinMode(pin, INPUT); // Disable existing out pin
pin = p;
if (begun) {
pinMode(p, OUTPUT);
digitalWrite(p, LOW);
}
#if defined(ARDUINO_ARCH_RP2040)
if (!init)
{
delayMicroseconds(100);
pio_gpio_init(pio, p);
pio_sm_set_consecutive_pindirs(pio, sm, p, 1, true);
pio_sm_set_sideset_pins(pio, sm, p);
}
#endif
if (begun && (pin >= 0))
pinMode(pin, INPUT); // Disable existing out pin
pin = p;

#if defined(__AVR__)
port = portOutputRegister(digitalPinToPort(p));
pinMask = digitalPinToBitMask(p);
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