DSP0401

Device driver interface for the DSP0401 alphanumeric display. More...

Detailed Description

Device driver interface for the DSP0401 alphanumeric display.

Files
file	dsp0401_params.h
	Default configuration for DSP0401.
file	dsp0401.h
	Device driver interface for the DSP0401 alphanumeric display.

Data Structures
struct	dsp0401_params_t
	Device initialization parameters. More...
struct	dsp0401_t
	Device descriptor for the DSP0401. More...

Enumerations
enum	{   DSP0401_OK = 0 , DSP0401_ERR_CLK_GPIO , DSP0401_ERR_SDI_GPIO , DSP0401_ERR_LAT_GPIO ,   DSP0401_ERR_PWM }
	Return codes. More...

Functions
int	dsp0401_init (dsp0401_t *dev, const dsp0401_params_t *params)
	Initialize the given DSP0401.
void	dsp0401_display_text (const dsp0401_t *dev, char *text)
	Display the given text on the DSP0401.
void	dsp0401_clear_text (const dsp0401_t *dev)
	Clear the text displayed on the DSP0401.
void	dsp0401_scroll_text (const dsp0401_t *dev, char *text, uint16_t delay)
	Scroll the given text on the DSP0401.

Enumeration Type Documentation

anonymous enum

anonymous enum

Return codes.

Enumerator
DSP0401_OK	All ok.
DSP0401_ERR_CLK_GPIO	Something went wrong with CLK GPIO.
DSP0401_ERR_SDI_GPIO	Something went wrong with SDI GPIO.
DSP0401_ERR_LAT_GPIO	Something went wrong with LAT GPIO.
DSP0401_ERR_PWM	Something went wrong with PWM.

Definition at line 35 of file dsp0401.h.

Function Documentation

dsp0401_clear_text()

void dsp0401_clear_text

(

const dsp0401_t *

dev

)

Clear the text displayed on the DSP0401.

Parameters

[in]

dev

Device descriptor of the DSP0401 device

dsp0401_display_text()

void dsp0401_display_text	(	const dsp0401_t *	dev,
		char *	text )

Display the given text on the DSP0401.

Parameters

[in]	dev	Device descriptor of the DSP0401 device
[in]	text	The text to display

dsp0401_init()

int dsp0401_init	(	dsp0401_t *	dev,
		const dsp0401_params_t *	params )

Initialize the given DSP0401.

Parameters

[out]	dev	Initialized device descriptor of DSP0401 device
[in]	params	Device parameters to use

Returns

DSP0401_OK if everything is good

-DSP0401_ERR_CLK_GPIO if an error occurred during CLK GPIO initialization

-DSP0401_ERR_SDI_GPIO if an error occurred during SDI GPIO initialization

-DSP0401_ERR_LAT_GPIO if an error occurred during LAT GPIO initialization

-DSP0401_ERR_PWM if an error occurred during PWM initialization

dsp0401_scroll_text()

void dsp0401_scroll_text	(	const dsp0401_t *	dev,
		char *	text,
		uint16_t	delay )

Scroll the given text on the DSP0401.

Parameters

[in]	dev	Device descriptor of the DSP0401 device
[in]	text	The text to scroll on the display
[in]	delay	Delay in ms between each horizontal move