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Add PSOC6 Support to Adafruit Neopixel Library. #442

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Merged
merged 1 commit into from
Oct 7, 2025
Merged

Add PSOC6 Support to Adafruit Neopixel Library. #442

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10 changes: 10 additions & 0 deletions Adafruit_NeoPixel.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -400,6 +400,12 @@ extern "C" void espShow(uint16_t pin, uint8_t *pixels, uint32_t numBytes,
extern "C" void k210Show(uint8_t pin, uint8_t *pixels, uint32_t numBytes,
boolean is800KHz);
#endif // KENDRYTE_K210


#if defined(ARDUINO_ARCH_PSOC6)
extern "C" void psoc6_show(uint8_t pin, uint8_t *pixels, uint32_t numBytes,
boolean is800KHz);
#endif
/*!
@brief Transmit pixel data in RAM to NeoPixels.
@note On most architectures, interrupts are temporarily disabled in
Expand Down Expand Up @@ -444,6 +450,10 @@ void Adafruit_NeoPixel::show(void) {
noInterrupts(); // Need 100% focus on instruction timing
#endif

#if defined(ARDUINO_ARCH_PSOC6)
psoc6_show(pin, pixels, numBytes, is800KHz);
#endif

#if defined(__AVR__)
// AVR MCUs -- ATmega & ATtiny (no XMEGA) ---------------------------------

Expand Down
87 changes: 87 additions & 0 deletions psoc6.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,87 @@
#if defined(ARDUINO_ARCH_PSOC6)

#include "cyhal_gpio.h"
#include "cyhal_system.h"
#include "cy_syslib.h"
#include "Arduino.h"

void psoc6_show(uint8_t pin, uint8_t *pixels, uint32_t numBytes, bool is800KHZ)
{
if (!pixels) return;
noInterrupts();
GPIO_PRT_Type *base = CYHAL_GET_PORTADDR(mapping_gpio_pin[pin]);
uint32_t pinNum = CYHAL_GET_PIN(mapping_gpio_pin[pin]);
if(is800KHZ){
for (uint16_t i = 0; i < numBytes; i++) {
uint8_t b = pixels[i];
for (uint8_t j = 0; j < 8; j++) {
bool bit = (b & 0x80) != 0;
b <<= 1;
switch (bit) {
case 1:
// Send a 1-bit
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
break;
case 0:
// Send a 0-bit
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
break;
}
}
}
}
else{
for (size_t i = 0; i < numBytes; i++){
uint8_t b = pixels[i];
for (uint8_t j = 0; j < 8; j++) {
bool bit = (b & 0x80) != 0;
b <<= 1;
switch (bit){
case 1:
// Send a 1-bit
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
break;
case 0:
// Send a 0-bit
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 1);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
Cy_GPIO_Write(base, pinNum, 0);
break;
}
}
}
}
interrupts();
delayMicroseconds(50);
return;
}
#endif