I2C_peripheral.h File Reference

I2C peripheral common. More...

#include <string.h>
#include "sarmfsw.h"

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Data Structures
struct	PeripheralGPIO_t
	i2c peripheral GPIO pin parameters More...

Macros
#define	IS_I2C_PERIPHERAL(name, idx)
	Macro for use with assert_param to check I2C idx is existing for name peripheral.
#define	IS_I2C_PERIPHERAL_ADDR(name, addr)
	Macro for use with assert_param to check I2C peripheral addr is valid for name peripheral.
#define	I2C_PERIPHERAL_IDX(name, addr)
	Macro to get I2C peripheral index given addr for name peripheral.
#define	I2C_PERIPHERAL_SET_DEFAULTS(name, idx)
	Macro to set working defaults for peripheral name on index idx.
#define	I2C_PERIPHERAL_SET_DEFAULTS_SINGLETON(name)
	Macro to set working defaults for singleton peripheral name.

Functions
void	I2C_peripheral_GPIO_init (PeripheralGPIO_t *const pGPIO, GPIO_TypeDef *const GPIOx, const uint16_t GPIO_Pin, const GPIO_PinState GPIO_Active)
	I2C peripheral GPIO pin init.
bool	I2C_peripheral_GPIO_get (const PeripheralGPIO_t *const pGPIO)
	I2C peripheral GPIO pin getter.
void	I2C_peripheral_GPIO_set (const PeripheralGPIO_t *const pGPIO, const bool state)
	I2C peripheral GPIO pin setter.

Detailed Description

I2C peripheral common.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

Macro Definition Documentation

I2C_PERIPHERAL_IDX

#define I2C_PERIPHERAL_IDX	(		name,
			addr )

Value:

((uintCPU_t) (((name##_t *) addr) - name))

Macro to get I2C peripheral index given addr for name peripheral.

I2C_PERIPHERAL_SET_DEFAULTS

#define I2C_PERIPHERAL_SET_DEFAULTS	(		name,
			idx )

Value:

UNUSED_RET memcpy(&name##_hal[idx], &name##_defaults, sizeof(I2C_slave_t)); \
name[idx].cfg.slave_inst = &name##_hal[idx];

Macro to set working defaults for peripheral name on index idx.

I2C_PERIPHERAL_SET_DEFAULTS_SINGLETON

#define I2C_PERIPHERAL_SET_DEFAULTS_SINGLETON

(

name

)

Value:

UNUSED_RET memcpy(&name##_hal, &name##_defaults, sizeof(I2C_slave_t));  \
name.cfg.slave_inst = &name##_hal;

Macro to set working defaults for singleton peripheral name.

IS_I2C_PERIPHERAL

#define IS_I2C_PERIPHERAL	(		name,
			idx )

Value:

((idx) < I2C_##name##_NB)

Macro for use with assert_param to check I2C idx is existing for name peripheral.

IS_I2C_PERIPHERAL_ADDR

#define IS_I2C_PERIPHERAL_ADDR	(		name,
			addr )

Value:

((I2C_PERIPHERAL_IDX(addr, name) >= 0) && \
(I2C_PERIPHERAL_IDX(addr, name) < I2C_##name##_NB))

Macro for use with assert_param to check I2C peripheral addr is valid for name peripheral.

Function Documentation

I2C_peripheral_GPIO_get()

bool I2C_peripheral_GPIO_get

(

const PeripheralGPIO_t *const

pGPIO

)

I2C peripheral GPIO pin getter.

Parameters

[in]

pGPIO

- Pointer to GPIO structure instance

Returns

GPIO state value (0: inactive, 1: active)

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I2C_peripheral_GPIO_init()

void I2C_peripheral_GPIO_init	(	PeripheralGPIO_t *const	pGPIO,
		GPIO_TypeDef *const	GPIOx,
		const uint16_t	GPIO_Pin,
		const GPIO_PinState	GPIO_Active )

I2C peripheral GPIO pin init.

Parameters

[in,out]	pGPIO	- Pointer to GPIO structure instance
[in]	GPIOx	- GPIO port
[in]	GPIO_Pin	- GPIO pin
[in]	GPIO_Active	GPIO pin active state

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I2C_peripheral_GPIO_set()

void I2C_peripheral_GPIO_set	(	const PeripheralGPIO_t *const	pGPIO,
		const bool	state )

I2C peripheral GPIO pin setter.

Parameters

[in]	pGPIO	- Pointer to GPIO structure instance
[in]	state	- state to write on GPIO (0: inactive, 1: active)

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