Port_Arch.c File Reference

Port Specific Arquitecture Driver More...

#include "Std_Types.h"
#include "Port_Cfg.h"
#include "Port_Arch.h"
#include "Registers.h"
#include "Bfx.h"

Macros
#define	TWO_BITS   0x02u
#define	FOUR_BITS   0x04u
#define	PIN_08_VAL   0x08u
#define	MUL_BY_TWO   1u
#define	MUL_BY_FOUR   2u

Functions
void	Port_Arch_Init (const Port_PinConfigType *PortConfigPtr)
	Initialize the GPIO pins to the configuration store on ConfigPTR.
void	Port_Arch_SetPinDirection (const Port_PinConfigType *PortConfigPtr, Port_PinDirectionType Direction)
	Set the direction of a GPIO during runtime.
void	Port_Arch_SetPinMode (const Port_PinConfigType *PortConfigPtr, uint8 PinMode, uint8 AltMode)
	Set the mode of a GPIO during runtime.
void	Port_Arch_RefreshPortDirection (const Port_PinConfigType *PortConfigPtr)
	Refresh port direction.

Variables
static Port_RegisterType *	PortPeripherals [] = { PORTA, PORTB, PORTC, PORTD, PORTE, PORTF }
	Global port register array.

Detailed Description

Port Specific Arquitecture Driver

Author

Enrique Ortega, Diego Perez

PORT driver implementation for the STM32G0xx family of microcontrollers. This file contains the hardware specific implementation of the PORT driver. The file is implemented as a means of abstraction from the hardware, this way we can avoid to include Arch headers in the actual driver header, making the low level interfaces available only for the inmediate upper layer.

Function Documentation

Port_Arch_Init()

void Port_Arch_Init

(

const Port_PinConfigType *

PortConfigPtr

)

Initialize the GPIO pins to the configuration store on ConfigPTR.

This function changes the values of the registers depending on the ConfigPtr values.

Parameters

PortConfigPtr

Pointer to ConfigPtr struct array.

Requirement

SWS_Port_00140

< Multiply by two on a shift operation

< operation on two bits

< Multiply by two on a shift operation

< operation on two bits

< Multiply by two on a shift operation

< operation on two bits

< get the four most significant nibble

< value of pin 8

< Multiply by four on a shift operation

< operation on four bits

< get the less significant bits

< value of pin 8

< Multiply by four on a shift operation

< operation on four bits

< get the less significant bits

Port_Arch_RefreshPortDirection()

void Port_Arch_RefreshPortDirection

(

const Port_PinConfigType *

PortConfigPtr

)

Refresh port direction.

The function refreshes the registers values of the GPIOS moder during runtime to the initial values only if they are configured as non changeables.

Parameters

PortConfigPtr

Pointer for the port configuration value.

Requirement

SWS_Port_00142

< Input mode value

< General purpose output mode value

< Multiply by two on a shift operation

< operation on two bits

< get the four most significant nibble

Port_Arch_SetPinDirection()

void Port_Arch_SetPinDirection	(	const Port_PinConfigType *	PortConfigPtr,
		Port_PinDirectionType	Direction )

Set the direction of a GPIO during runtime.

The function changes the registers values of the GPIOS direction during runtime.

Parameters

PortConfigPtr	Pointer for the port configuration value.
Direction	Direction to be changed.

Requirement

SWS_Port_00141

< Multiply by two on a shift operation

< operation on two bits

Port_Arch_SetPinMode()

void Port_Arch_SetPinMode	(	const Port_PinConfigType *	PortConfigPtr,
		uint8	PinMode,
		uint8	AltMode )

Set the mode of a GPIO during runtime.

The function changes the registers values of the GPIOS mode during runtime.

Parameters

PortConfigPtr	Pointer for the port configuration value.
PinMode	Pin Mode to be changed.
AltMode	Altern Mode to be changed.

Requirement

SWS_Port_00145

< Multiply by two on a shift operation

< operation on two bits

< value of pin 8

< Multiply by four on a shift operation

< operation on four bits

< value of pin 8

< Multiply by four on a shift operation

< operation on four bits