SPI Pixel Controller

Detailed Description

Control RGB Pixels using SPI.

This only supports the LPD8806 chip for now. We're happy to accept pull requests adding support for different pixel types.

Files
file	spi_rgb.h
	Control RGB Pixels using SPI.

Data Structures
struct	SPIRGBConfiguration
	SPI RGB Module configuration. More...

Enumerations
enum	RGB_Color { RED = 0, GREEN = 1, BLUE = 2 }
	RGB color values.

Functions
void	SPIRGB_Init (const SPIRGBConfiguration *config)
	Initialize the SPI RGB module. More...
void	SPIRGB_BeginUpdate ()
	Begin a frame update. More...
void	SPIRGB_SetPixel (uint16_t index, RGB_Color color, uint8_t value)
	Set the value of a pixel. More...
void	SPIRGB_CompleteUpdate ()
	Complete a frame update. More...
void	SPIRGB_Tasks ()
	Perform the periodic SPI RGB tasks. More...

Function Documentation

void SPIRGB_BeginUpdate

(

)

Begin a frame update.

This pauses the SPI sending task.

void SPIRGB_CompleteUpdate

(

)

Complete a frame update.

This unpauses the SPI sending task. The frame will be sent on the next call to SPIRGB_Tasks().

void SPIRGB_Init

(

const SPIRGBConfiguration *

config

)

Initialize the SPI RGB module.

Parameters

config

The configuration to use.

void SPIRGB_SetPixel	(	uint16_t	index,
		RGB_Color	color,
		uint8_t	value
	)

Set the value of a pixel.

Parameters

index	The pixel offset
color	The pixel color
value	The new value for the pixel

void SPIRGB_Tasks

(

)

Perform the periodic SPI RGB tasks.

This should be called in the main event loop.