st7920.c File Reference

#include "st7920.h"

Macros
#define	_PIN_HIGH   1
#define	_PIN_LOW   0
#define	_SUCCESS   0
#define	_ST7920_ERROR_CHECK(x)   if (x != _SUCCESS) { return ST7920_FAIL; }

Functions
static void	_delay_ms (st7920_t *st7920, uint32_t ms)
static void	_pin_reset (st7920_t *st7920, uint8_t Signal)
static void	_pin_cs (st7920_t *st7920, uint8_t Signal)
static uint8_t	_spi_write (st7920_t *st7920, uint8_t *data, uint32_t len)
static uint8_t	_write_data (st7920_t *st7920, uint8_t *buff, uint32_t len)
static uint8_t	_write_command (st7920_t *st7920, uint8_t cmd)
static void	_reset (st7920_t *st7920)
static void	_mtx_lock (st7920_t *st7920)
static void	_mtx_unlock (st7920_t *st7920)
uint8_t	ST7920_Init (st7920_t *st7920, st7920_params_t *params)
uint8_t	ST7920_SetFrameBuffer (st7920_t *st7920, uint8_t *pu8FrameBuffer)
uint8_t	ST7920_Refresh (st7920_t *st7920)
uint8_t	ST7920_Write (st7920_t *st7920, uint32_t x, uint32_t y, bool color)
uint8_t	ST7920_Fill (st7920_t *st7920, uint8_t color)

Macro Definition Documentation

_PIN_HIGH

#define _PIN_HIGH   1

_PIN_LOW

#define _PIN_LOW   0

_ST7920_ERROR_CHECK

#define _ST7920_ERROR_CHECK

(

x

)

if (x != _SUCCESS) { return ST7920_FAIL; }

_SUCCESS

#define _SUCCESS   0

Function Documentation

_delay_ms()

static void _delay_ms ( st7920_t * st7920, uint32_t ms )

static

_mtx_lock()

static void _mtx_lock ( st7920_t * st7920 )

static

_mtx_unlock()

static void _mtx_unlock ( st7920_t * st7920 )

static

_pin_cs()

static void _pin_cs ( st7920_t * st7920, uint8_t Signal )

static

_pin_reset()

static void _pin_reset ( st7920_t * st7920, uint8_t Signal )

static

_reset()

static void _reset ( st7920_t * st7920 )

static

_spi_write()

static uint8_t _spi_write ( st7920_t * st7920, uint8_t * data, uint32_t len )

static

_write_command()

static uint8_t _write_command ( st7920_t * st7920, uint8_t cmd )

static

_write_data()

static uint8_t _write_data ( st7920_t * st7920, uint8_t * buff, uint32_t len )

static

ST7920_Fill()

uint8_t ST7920_Fill	(	st7920_t *	st7920,
		uint8_t	color )

Parameters

st7920
color

Returns

uint8_t

ST7920_Init()

uint8_t ST7920_Init	(	st7920_t *	st7920,
		st7920_params_t *	params )

Parameters

st7920
params

Returns

uint8_t

ST7920_Refresh()

uint8_t ST7920_Refresh

(

st7920_t *

st7920

)

Parameters

st7920

Returns

uint8_t

ST7920_SetFrameBuffer()

uint8_t ST7920_SetFrameBuffer	(	st7920_t *	st7920,
		uint8_t *	pu8FrameBuffer )

Parameters

st7920
pu8FrameBuffer

Returns

uint8_t

ST7920_Write()

uint8_t ST7920_Write	(	st7920_t *	st7920,
		uint32_t	x,
		uint32_t	y,
		bool	color )

Parameters

st7920
x
y
color

Returns

uint8_t