ifx_i2c_physical_layer.h File Reference

This file defines the API prototype for physical layer of the Infineon I2C Protocol Stack library. More...

#include "ifx_i2c_config.h"

Include dependency graph for ifx_i2c_physical_layer.h:

Go to the source code of this file.

Functions
optiga_lib_status_t	ifx_i2c_pl_init (ifx_i2c_context_t *p_ctx, ifx_i2c_event_handler_t handler)
	Function for initializing the module. More...
optiga_lib_status_t	ifx_i2c_pl_send_frame (ifx_i2c_context_t *p_ctx, uint8_t *p_frame, uint16_t frame_len)
	Function for sending a frame. More...
optiga_lib_status_t	ifx_i2c_pl_receive_frame (ifx_i2c_context_t *p_ctx)
	Function for receiving a frame. More...
optiga_lib_status_t	ifx_i2c_pl_write_slave_address (ifx_i2c_context_t *p_ctx, uint8_t slave_address, uint8_t storage_type)
	Function for setting slave address. More...

Detailed Description

This file defines the API prototype for physical layer of the Infineon I2C Protocol Stack library.

Author

Infineon Technologies AG

Definition in file ifx_i2c_physical_layer.h.

Function Documentation

ifx_i2c_pl_init()

optiga_lib_status_t ifx_i2c_pl_init	(	ifx_i2c_context_t *	p_ctx,
		ifx_i2c_event_handler_t	handler
	)

Function for initializing the module.

Function initializes and enables the module

• It registers an event handler to receive events from this module.

Precondition

• This function must be called before using the module.

Note

• None

Parameters

[in,out]	p_ctx	Pointer to IFX I2C context.
[in]	handler	Function pointer to the event handler of the upper layer.

Return values

IFX_I2C_STACK_SUCCESS	If initialization was successful.
IFX_I2C_STACK_ERROR	If the module is already initialized.

ifx_i2c_pl_receive_frame()

optiga_lib_status_t ifx_i2c_pl_receive_frame

(

ifx_i2c_context_t *

p_ctx

)

Function for receiving a frame.

Asynchronous function to receive a frame

• The function returns immediately.
• One of the following events is propagated to the event handler registered with ifx_i2c_pl_init

Precondition

• None

Note

• None

Parameters

[in]

p_ctx

Pointer to IFX I2C context.

Return values

IFX_I2C_STACK_SUCCESS	If function was successful.
IFX_I2C_STACK_ERROR	If the module is busy.

ifx_i2c_pl_send_frame()

optiga_lib_status_t ifx_i2c_pl_send_frame	(	ifx_i2c_context_t *	p_ctx,
		uint8_t *	p_frame,
		uint16_t	frame_len
	)

Function for sending a frame.

Asynchronous function to send a frame.

• The function returns immediately.
• One of the following events is propagated to the event handler registered with ifx_i2c_pl_init

Precondition

• None

Note

• None

Parameters

[in,out]	p_ctx	Pointer to IFX I2C context.
[in]	p_frame	Buffer containing the frame.
[in]	frame_len	Frame length.

Return values

IFX_I2C_STACK_SUCCESS	If function was successful.
IFX_I2C_STACK_ERROR	If the module is busy.

ifx_i2c_pl_write_slave_address()

optiga_lib_status_t ifx_i2c_pl_write_slave_address	(	ifx_i2c_context_t *	p_ctx,
		uint8_t	slave_address,
		uint8_t	storage_type
	)

Function for setting slave address.

Synchronous function to set slave address.

Precondition

• None

Note

• None

Parameters

[in]	p_ctx	Pointer to IFX I2C context.
[in]	slave_address	Holds new slave address[7 Bit] to be set.
[in]	storage_type	0: To set the Slave address until next reset. Non-zero: To set the slave address to persistent memory.

Return values

IFX_I2C_STACK_SUCCESS	If function was successful.
IFX_I2C_STACK_ERROR	If setting slave address fails.