Library for using GPIO as Digital I/O. More...

#include <avr/io.h>

Macros
GPIO_MODE
Options for GPIO Operation Mode
#define	GPIO_MODE_OUTPUT 0x00

#define	GPIO_MODE_TRI_STATE 0x02

#define	GPIO_MODE_INPUT_WITH_PULL_UP 0x01

#define	GPIO_MODE_INPUT_WITHOUT_PULL_UP 0x02

GPIO_PIN_STATE
Options for Digital I/O Pin State
#define	LOW 0x00

#define	HIGH 0x01

#define	TOGGLE 0x02

GPIO_PORT_DATA_REGISTER
Options for GPIO Port Data Register
#define	PB &PORTB

#define	PC &PORTC

#define	PD &PORTD

GPIO_PORT_BIT_MASK
Options for GPIO Port Bit Mask
#define	P0 (1<<0)

#define	P1 (1<<1)

#define	P2 (1<<2)

#define	P3 (1<<3)

#define	P4 (1<<4)

#define	P5 (1<<5)

#define	P6 (1<<6)

#define	P7 (1<<7)

#define	ALL_PINS 0xFF

GPIO_ARDUINO_PINS
Options for GPIO Digital I/O Pin in Arduino Style
#define	D0 PD,P0

#define	D1 PD,P1

#define	D2 PD,P2

#define	D3 PD,P3

#define	D4 PD,P4

#define	D5 PD,P5

#define	D6 PD,P6

#define	D7 PD,P7

#define	D8 PB,P0

#define	D9 PB,P1

#define	D10 PB,P2

#define	D11 PB,P3

#define	D12 PB,P4

#define	D13 PB,P5

#define	D14 PC,P0

#define	D15 PC,P1

#define	D16 PC,P2

#define	D17 PC,P3

#define	D18 PC,P4

#define	D19 PC,P5

#define	A0 PC,P0

#define	A1 PC,P1

#define	A2 PC,P2

#define	A3 PC,P3

#define	A4 PC,P4

#define	A5 PC,P5

Functions
GPIO_GLOBAL_PULL_UP_CONTROL
Public Functions to Control Global GPIO Pull Up
void	GPIO_DisableGlobalPullUp ()
	Public Function to Disable Global Pull Up. More...

void	GPIO_EnableGlobalPullUp ()
	Public Function to Enable Global Pull Up. More...

GPIO_CONFIGURATION
Public Functions to Configure GPIO as Digital I/O
void	GPIO_Init (volatile uint8_t *Port, uint8_t Pin, uint8_t PinMode)
	Public Function to Configure and Initialize Digital I/O Pin. More...

void	GPIO_InitPin (uint8_t Pin, uint8_t PinMode)
	Public Function to Configure and Initialize Digital I/O Pin. More...

void	GPIO_DeInit (volatile uint8_t *Port, uint8_t Pin)
	Public Function to De-Initialize Digital I/O Pin. More...

void	GPIO_DeInitPin (uint8_t Pin)
	Public Function to De-Initialize Digital I/O Pin. More...

GPIO_PIN_READ_WRITE
Public Functions to Read and Write Digital I/O Pin
uint8_t	GPIO_Read (volatile uint8_t *Port, uint8_t Pin)
	Public Function to Read Digital I/O Pin. More...

uint8_t	GPIO_ReadPin (uint8_t Pin)
	Public Function to Read Digital I/O Pin. More...

void	GPIO_Write (volatile uint8_t *Port, uint8_t Pin, uint8_t PinState)
	Public Function to Write Output Value Digital I/O Pin. More...

void	GPIO_Toggle (volatile uint8_t *Port, uint8_t Pin)
	Public Function to Toggle Output Value of Digital I/O Pin. More...

void	GPIO_WritePinLow (uint8_t Pin)
	Public Function to Write Output Value of Digital I/O Pin to LOW. More...

void	GPIO_WritePinHigh (uint8_t Pin)
	Public Function to Write Output Value of Digital I/O Pin to HIGH. More...

void	GPIO_WritePinToggle (uint8_t Pin)
	Public Function to Write Output Value of Digital I/O Pin to TOGGLE. More...

Detailed Description

Library for using GPIO as Digital I/O.

Created: 08-08-2020 06:12:10 PM
Author : Arnab Kumar Das
Website: www.ArnabKumarDas.com
Microcontroller Supported: ATmega48A/PA/88A/PA/168A/PA/328/P or Arduino UNO/NANO/MINI

               +-\/-+
         PC6  1|    |28  PC5 (A5/ADC5)
RXD (D0) PD0  2|    |27  PC4 (A4/ADC4)
TXD (D1) PD1  3|    |26  PC3 (A3/ADC3)
    (D2) PD2  4|    |25  PC2 (A2/ADC2)
PWM (D3) PD3  5|    |24  PC1 (A1/ADC1)
XCK (D4) PD4  6|    |23  PC0 (A0/ADC0)
         VCC  7|    |22  GND
         GND  8|    |21  AREF
         PB6  9|    |20  AVCC
         PB7 10|    |19  PB5 (D13)
PWM (D5) PD5 11|    |18  PB4 (D12)
PWM (D6) PD6 12|    |17  PB3 (D11) PWM
    (D7) PD7 13|    |16  PB2 (D10) PWM
    (D8) PB0 14|    |15  PB1 (D9)  PWM
               +----+

Macro Definition Documentation

◆ GPIO_MODE_OUTPUT

#define GPIO_MODE_OUTPUT 0x00

Sets the GPIO Mode of Operation to : Output

◆ GPIO_MODE_TRI_STATE

#define GPIO_MODE_TRI_STATE 0x02

Sets the GPIO Mode of Operation to : Tri-state (Hi-Z)

◆ GPIO_MODE_INPUT_WITH_PULL_UP

#define GPIO_MODE_INPUT_WITH_PULL_UP 0x01

Sets the GPIO Mode of Operation to : Input with Internal Pull Up

◆ GPIO_MODE_INPUT_WITHOUT_PULL_UP

#define GPIO_MODE_INPUT_WITHOUT_PULL_UP 0x02

Sets the GPIO Mode of Operation to : Input without Internal Pull Up

◆ LOW

#define LOW 0x00

Sets the GPIO Pin State to : Output LOW / 0V / GND

◆ HIGH

#define HIGH 0x01

Sets the GPIO Pin State to : Output HIGH / ~5V / VCC

◆ TOGGLE

#define TOGGLE 0x02

Sets the GPIO Pin State to : Toggle the Output Level

Function Documentation

◆ GPIO_DisableGlobalPullUp()

void GPIO_DisableGlobalPullUp ( )

inline

Public Function to Disable Global Pull Up.

Returns: void

◆ GPIO_EnableGlobalPullUp()

void GPIO_EnableGlobalPullUp ( )

inline

Public Function to Enable Global Pull Up.

Returns: void

◆ GPIO_Init()

void GPIO_Init	(	volatile uint8_t *	Port,
		uint8_t	Pin,
		uint8_t	PinMode
	)

inline

Public Function to Configure and Initialize Digital I/O Pin.

Parameters

[in]	Port	: Memory Address of Data Register PORTx of I/O Port
[in]	Pin	: Bit Mask of Data Register PORTx
[in]	PinMode	: Digital I/O Pin Operation Mode

Returns: void

◆ GPIO_InitPin()

void GPIO_InitPin	(	uint8_t	Pin,
		uint8_t	PinMode
	)

inline

Public Function to Configure and Initialize Digital I/O Pin.

Parameters

[in]	Pin	: Digital I/O Pin Number 0 ... 19
[in]	PinMode	: Digital I/O Pin Operation Mode

Returns: void

◆ GPIO_DeInit()

void GPIO_DeInit	(	volatile uint8_t *	Port,
		uint8_t	Pin
	)

inline

Public Function to De-Initialize Digital I/O Pin.

Parameters

[in]	Port	: Memory Address of Data Register PORTx of I/O Port
[in]	Pin	: Bit Mask of Data Register PORTx

Returns: void

◆ GPIO_DeInitPin()

void GPIO_DeInitPin ( uint8_t Pin )

inline

Public Function to De-Initialize Digital I/O Pin.

Parameters

[in] Pin : Digital I/O Pin Number 0 ... 19

Returns: void

◆ GPIO_Read()

uint8_t GPIO_Read	(	volatile uint8_t *	Port,
		uint8_t	Pin
	)

inline

Public Function to Read Digital I/O Pin.

Parameters

[in]	Port	: Memory Address of Data Register PORTx of I/O Port
[in]	Pin	: Bit Mask of Data Register PORTx

Returns: Digital I/O Pin State

◆ GPIO_ReadPin()

uint8_t GPIO_ReadPin ( uint8_t Pin )

inline

Public Function to Read Digital I/O Pin.

Parameters

[in] Pin : Digital I/O Pin Number 0 ... 19

Returns: Digital I/O Pin State

◆ GPIO_Write()

void GPIO_Write	(	volatile uint8_t *	Port,
		uint8_t	Pin,
		uint8_t	PinState
	)

inline

Public Function to Write Output Value Digital I/O Pin.

Parameters

[in]	Port	: Memory Address of Data Register PORTx of I/O Port
[in]	Pin	: Bit Mask of Data Register PORTx
[in]	PinState	: Digital I/O Pin State

Returns: void

◆ GPIO_Toggle()

void GPIO_Toggle	(	volatile uint8_t *	Port,
		uint8_t	Pin
	)

inline

Public Function to Toggle Output Value of Digital I/O Pin.

Parameters

[in]	Port	: Memory Address of Data Register PORTx of I/O Port
[in]	Pin	: Bit Mask of Data Register PORTx

Returns: void

◆ GPIO_WritePinLow()

void GPIO_WritePinLow ( uint8_t Pin )

inline

Public Function to Write Output Value of Digital I/O Pin to LOW.

Parameters

[in] Pin : Digital I/O Pin Number 0 ... 19

Returns: void

◆ GPIO_WritePinHigh()

void GPIO_WritePinHigh ( uint8_t Pin )

inline

Public Function to Write Output Value of Digital I/O Pin to HIGH.

Parameters

[in] Pin : Digital I/O Pin Number 0 ... 19

Returns: void

◆ GPIO_WritePinToggle()

void GPIO_WritePinToggle ( uint8_t Pin )

inline

Public Function to Write Output Value of Digital I/O Pin to TOGGLE.

Parameters

[in] Pin : Digital I/O Pin Number 0 ... 19

Returns: void

Macros

Functions

Detailed Description

Macro Definition Documentation

◆ GPIO_MODE_OUTPUT

◆ GPIO_MODE_TRI_STATE

◆ GPIO_MODE_INPUT_WITH_PULL_UP

◆ GPIO_MODE_INPUT_WITHOUT_PULL_UP

◆ LOW

◆ HIGH

◆ TOGGLE

Function Documentation

◆ GPIO_DisableGlobalPullUp()

◆ GPIO_EnableGlobalPullUp()

◆ GPIO_Init()

◆ GPIO_InitPin()

◆ GPIO_DeInit()

◆ GPIO_DeInitPin()

◆ GPIO_Read()

◆ GPIO_ReadPin()

◆ GPIO_Write()

◆ GPIO_Toggle()

◆ GPIO_WritePinLow()

◆ GPIO_WritePinHigh()

◆ GPIO_WritePinToggle()