Fast Random Number Generators

Detailed Description

Fast 8-bit and 16-bit unsigned random number generators.

Significantly faster than Arduino random(), but also somewhat less random. You can add entropy.

Pseudo-random number generation follows the form:

X(n+1) = (2053 * X(n)) + 13849)

Collaboration diagram for Fast Random Number Generators:

uint16_t	rand16seed
	Seed for the random number generator functions.
LIB8STATIC uint8_t	random8 ()
	Generate an 8-bit random number.
LIB8STATIC uint16_t	random16 ()
	Generate a 16-bit random number.
LIB8STATIC uint8_t	random8 (uint8_t lim)
	Generate an 8-bit random number between 0 and lim.
LIB8STATIC uint8_t	random8 (uint8_t min, uint8_t lim)
	Generate an 8-bit random number in the given range.
LIB8STATIC uint16_t	random16 (uint16_t lim)
	Generate an 16-bit random number between 0 and lim.
LIB8STATIC uint16_t	random16 (uint16_t min, uint16_t lim)
	Generate an 16-bit random number in the given range.
LIB8STATIC void	random16_set_seed (uint16_t seed)
	Set the 16-bit seed used for the random number generator.
LIB8STATIC uint16_t	random16_get_seed ()
	Get the current seed value for the random number generator.
LIB8STATIC void	random16_add_entropy (uint16_t entropy)
	Add entropy into the random number generator.
#define	FASTLED_RAND16_2053   ((uint16_t)(2053))
	Multiplier value for pseudo-random number generation.
#define	FASTLED_RAND16_13849   ((uint16_t)(13849))
	Increment value for pseudo-random number generation.
#define	APPLY_FASTLED_RAND16_2053(x)
	Multiplies a value by the pseudo-random multiplier.