ssd1306.c File Reference

Source file implementing main ssd1306 driver function. More...

#include "ssd1306.h"
#include <assert.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include "inc/hw_i2c.h"
#include "inc/hw_ints.h"
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/gpio.h"
#include "driverlib/i2c.h"
#include "driverlib/interrupt.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/uart.h"
#include "oled_font.h"
#include "ssd1306_info.h"
#include "ssd1306_utils.h"

Include dependency graph for ssd1306.c:

Functions
void	ssd1306Init (void)
	Configure the hardware like I2C module to be ready for talking with SSD1306.
void	ssd1306SwitchDisplay (const bool isOn)
	Turn display on or off. More...
void	ssd1306TurnOn (const bool isFirstTime)
	Initialize the ssd1306. More...
void	ssd1306AdjustContrast (const uint8_t contrastVal)
	Adjust contrast of the OLED screen. More...
void	ssd1306ClearDisplay (void)
	Clear the display and makes it all black. More...
void	ssd1306SwitchLine (const uint32_t lineNum)
	Change the target line to print. More...
void	ssd1306PrintPic (const uint8_t *picBitmap, const uint32_t startColCoordinate, const uint32_t endColCoordinate, const uint32_t startPageCoordinate, const uint32_t endPageCoordinate)
	Print picture on oled screen. More...
void	ssd1306PrintString (const char *stringToPrint, const uint32_t lineNum, const uint32_t startCol, const fontSetDesc fontSet)
	Print string onto oled screen. More...

Detailed Description

Source file implementing main ssd1306 driver function.

Author

Khoi Trinh

Version

0.1

Date

2018-11-03

Function Documentation

ssd1306AdjustContrast()

void ssd1306AdjustContrast

(

const uint8_t

contrastVal

)

Adjust contrast of the OLED screen.

Parameters

contrastVal

The contrast value to be set, limited up to 255

ssd1306ClearDisplay()

void ssd1306ClearDisplay

(

void

)

Clear the display and makes it all black.

Works by blanking the GDDRAM data with 0

ssd1306PrintPic()

void ssd1306PrintPic	(	const uint8_t *	picBitmap,
		const uint32_t	startColCoordinate,
		const uint32_t	endColCoordinate,
		const uint32_t	startPageCoordinate,
		const uint32_t	endPageCoordinate
	)

Print picture on oled screen.

Parameters

picBitmap	Arrays containing the bitmap of the picture
startColCoordinate	Column to start printing
endColCoordinate	Column to stop printing(inclusive)
startPageCoordinate	Page to start printing
endPageCoordinate	Page to stop printing(inclusive)

ssd1306PrintString()

void ssd1306PrintString	(	const char *	stringToPrint,
		const uint32_t	lineNum,
		const uint32_t	startCol,
		const fontSetDesc	fontSet
	)

Print string onto oled screen.

Parameters

stringToPrint	Character array containing string to print
lineNum	The line at which to print(start at 0), limited by SSD1306_MAX_LINE
startCol	Column at which to start printing
fontSet	The struct containing the font set descriptor for fonts to be used

ssd1306SwitchDisplay()

void ssd1306SwitchDisplay

(

const bool

isOn

)

Turn display on or off.

Parameters

isOn	Display on if true

ssd1306SwitchLine()

void ssd1306SwitchLine

(

const uint32_t

lineNum

)

Change the target line to print.

Parameters

lineNum

The line to change to, limited by SSD1306_MAX_LINE

ssd1306TurnOn()

void ssd1306TurnOn

(

const bool

isFirstTime

)

Initialize the ssd1306.

Do things like configure charge pump, and other require settings to starting up the display