fix setPin() for RP2040

adafruit · May 18, 2024 · b84de86 · b84de86
1 parent c96772c
commit b84de86
Showing 1 changed file with 13 additions and 3 deletions.
diff --git a/Adafruit_NeoPixel.cpp b/Adafruit_NeoPixel.cpp
@@ -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);