main.c File Reference

NeoPixel (WS2812) interface demo using the processor's smart LED interface (NEOLED). More...

#include <neorv32.h>

Macros
User configuration
#define	BAUD_RATE   19200
#define	NUM_LEDS_24BIT   (12)
#define	MAX_INTENSITY   (16)

Functions
uint32_t	hsv2rgb (int h, int v)
int	main ()

Detailed Description

NeoPixel (WS2812) interface demo using the processor's smart LED interface (NEOLED).

Author

Stephan Nolting

Macro Definition Documentation

BAUD_RATE

#define BAUD_RATE   19200

UART BAUD rate

MAX_INTENSITY

#define MAX_INTENSITY   (16)

Max intensity (0..255)

NUM_LEDS_24BIT

#define NUM_LEDS_24BIT   (12)

Number of RGB LEDs in stripe (24-bit data)

Function Documentation

hsv2rgb()

uint32_t hsv2rgb	(	int	h,
		int	v )

Convert HSV color to RGB.

Note

Very simple version: using integer arithmetic and ignoring saturation (saturation is always MAX).

Parameters

[in]	h	Hue (color angle), 0..359
[in]	v	Value (intensity), 0..255

Returns

LSB-aligned 24-bit RGB data [G,R,B]

main()

int main

(

void

)

Main function This demo uses a 12-LED RGB ring

Note

This program requires the NEOLED controller to be synthesized (UART0 is optional).

Returns

0 if execution was successful