Interface definition for the PCD8544 LCD driver. More...

Detailed Description

Interface definition for the PCD8544 LCD driver.

Author: Hauke Petersen hauke.nosp@m..pet.nosp@m.ersen.nosp@m.@fu-.nosp@m.berli.nosp@m.n.de

Definition in file pcd8544.h.

#include <stdint.h>
#include "periph/gpio.h"
#include "periph/spi.h"

Include dependency graph for pcd8544.h:

Functions
int	pcd8544_init (pcd8544_t *dev, spi_t spi, gpio_t cs, gpio_t reset, gpio_t mode)
	Initialize the given display.

void	pcd8544_set_contrast (const pcd8544_t *dev, uint8_t contrast)
	Set the contrast for the given display.

void	pcd8544_set_tempcoef (const pcd8544_t *dev, uint8_t coef)
	Set the temperature coefficient for the given display.

void	pcd8544_set_bias (const pcd8544_t *dev, uint8_t bias)
	Set the internal BIAS for the given display.

void	pcd8544_write_img (const pcd8544_t *dev, const uint8_t img[])
	Write an image to memory of the given display.

void	pcd8544_write_c (const pcd8544_t *dev, uint8_t x, uint8_t y, const char c)
	Write a single ASCII character to the display.

void	pcd8544_write_s (const pcd8544_t dev, uint8_t x, uint8_t y, const char str)
	Write a string to a given position on the display.

void	pcd8544_clear (const pcd8544_t *dev)
	Clear the current display (clear the display memory)

void	pcd8544_invert (pcd8544_t *dev)
	Invert the display (toggles dark and bright pixels)

int	pcd8544_is_inverted (const pcd8544_t *dev)
	Get the current inversion status of the display.

void	pcd8544_poweron (const pcd8544_t *dev)
	Power on the display.

void	pcd8544_poweroff (const pcd8544_t *dev)
	Poser off the display.

void	pcd8544_riot (const pcd8544_t *dev)
	I wonder what this does -> find out!

Definition of display dimensions
#define	PCD8544_RES_X (84U)
	pixels per row

#define	PCD8544_RES_Y (48U)
	pixels per column

#define	PCD8544_COLS (14U)
	characters per row

#define	PCD8544_ROWS (6U)
	characters per column

Default values for temperature compensation and contrast
#define	PCD8544_DEFAULT_CONTRAST (45U)

#define	PCD8544_DEFAULT_BIAS (3U)

#define	PCD8544_DEFAULT_TEMPCOEF (0U)

Data Structures