PCA9685.c File Reference

PCA9685 Driver. More...

#include "PCA9685.h"

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Functions
FctERR	PCA9685_Init (const uint8_t idx, I2C_HandleTypeDef *const hi2c, const uint16_t devAddress)
	Initialization for PCA9685 peripheral.
FctERR	PCA9685_Init_Single (void)
	Initialization for PCA9685 peripheral.
FctERR	PCA9685_Write (I2C_slave_t *const pSlave, const uint8_t *data, const uint16_t addr, const uint16_t nb)
	I2C Write function for PCA9685.
FctERR	PCA9685_Read (I2C_slave_t *const pSlave, uint8_t *data, const uint16_t addr, const uint16_t nb)
	I2C Read function for PCA9685.

Detailed Description

PCA9685 Driver.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

PCA9685: 16-channel, 12-bit PWM Fm+ I2C-bus LED controller

Function Documentation

PCA9685_Init()

FctERR PCA9685_Init	(	const uint8_t	idx,
		I2C_HandleTypeDef *const	hi2c,
		const uint16_t	devAddress )

Initialization for PCA9685 peripheral.

Parameters

[in]	idx	- PCA9685 index
[in]	hi2c	- pointer to PCA9685 I2C instance
[in]	devAddress	- PCA9685 device address

Returns

FctERR - error code

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PCA9685_Init_Single()

FctERR PCA9685_Init_Single

(

void

)

Initialization for PCA9685 peripheral.

Warning

In case multiple devices (defined by I2C_PCA9685_NB > 1), you shall use PCA9685_Init instead

Returns

FctERR - error code

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PCA9685_Read()

FctERR PCA9685_Read	(	I2C_slave_t *const	pSlave,
		uint8_t *	data,
		const uint16_t	addr,
		const uint16_t	nb )

I2C Read function for PCA9685.

Parameters

[in,out]	pSlave	- Pointer to I2C slave instance
[in,out]	data	- pointer to read to
[in]	addr	- Address to read from
[in]	nb	- Number of bytes to read

Returns

FctERR - error code

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PCA9685_Write()

FctERR PCA9685_Write	(	I2C_slave_t *const	pSlave,
		const uint8_t *	data,
		const uint16_t	addr,
		const uint16_t	nb )

I2C Write function for PCA9685.

Parameters

[in,out]	pSlave	- Pointer to I2C slave instance
[in]	data	- pointer to write from
[in]	addr	- Address to write to
[in]	nb	- Number of bytes to write

Returns

FctERR - error code

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