PCA9532 Driver extensions. More...

#include "sarmfsw.h"
#include "PCA9532.h"

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Data Structures
union	uPCA9532_REG_MAP
	PCA9532 Register map union. More...

Functions
FctERR	PCA9532_Set_Auto_Increment (PCA9532_t *const pCpnt, const PCA95xx_reg_inc inc)
	Set auto increment option for PCA9532 registers.

FctERR	PCA9532_Freq_To_Byte (uint8_t *const byte, const float freq)
	Convert Frequency to PSCx byte register.

FctERR	PCA9532_DutyCycle_To_Byte (uint8_t *const byte, const float duty)
	Convert Frequency to PWMx byte register.

float	PCA9532_Byte_To_Freq (const uint8_t freq)
	Convert PSCx byte register to Frequency (in Hz)

float	PCA9532_Byte_To_Duty (const uint8_t duty)
	Convert PWMx byte register to Duty Cycle (in %)

FctERR	PCA9532_ReadRegister (PCA9532_t const pCpnt, const PCA9532_reg reg, uint8_t const val)
	Read register from PCA9532.

FctERR	PCA9532_Read_INPUT0 (PCA9532_t const pCpnt, uPCA9532_REG__INPUT0 const pINPUT0)
	Read LED0 to LED7 input register.

FctERR	PCA9532_Read_INPUT1 (PCA9532_t const pCpnt, uPCA9532_REG__INPUT1 const pINPUT1)
	Read LED8 to LED15 input register.

FctERR	PCA9532_Set_Mode_LED (PCA9532_t *const pCpnt, const PCA9xxx_chan chan, const PCA95xx_ledsel mode)
	Set PCA9532 peripheral LED mode.

FctERR	PCA9532_Set_Mode_LEDs (PCA9532_t *const pCpnt, const uint16_t chans, const PCA95xx_ledsel mode)
	Set PCA9532 peripheral multiple LEDs mode.

FctERR	PCA9532_SetFrequency (PCA9532_t *const pCpnt, const float freq, const bool index)
	Set PSCx frequency of PCA9532.

FctERR	PCA9532_SetDuty (PCA9532_t *const pCpnt, const float duty, const bool index)
	Set PWMx duty cycle of PCA9532.

void	PCA9532_RST_GPIO_Init (PCA9532_t const pCpnt, GPIO_TypeDef const GPIOx, const uint16_t GPIO_Pin, const GPIO_PinState GPIO_Active)
	Reset GPIO pin init for PCA9532.

void	PCA9532_RST_GPIO_Set (PCA9532_t *const pCpnt, const bool state)
	Reset GPIO pin setter for PCA9532.

Detailed Description

PCA9532 Driver extensions.

Author: SMFSW

Copyright: MIT (c) 2017-2026, SMFSW

PCA9532: 16-bit I2C-bus LED dimmer

Function Documentation

◆ PCA9532_Byte_To_Duty()

float PCA9532_Byte_To_Duty ( const uint8_t duty )

inline

Convert PWMx byte register to Duty Cycle (in %)

Parameters

[in] duty - 8b PWMx register value

Returns: Frequency

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◆ PCA9532_Byte_To_Freq()

float PCA9532_Byte_To_Freq ( const uint8_t freq )

inline

Convert PSCx byte register to Frequency (in Hz)

Parameters

[in] freq - 8b PSCx register value

Returns: Frequency

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◆ PCA9532_DutyCycle_To_Byte()

FctERR PCA9532_DutyCycle_To_Byte	(	uint8_t *const	byte,
		const float	duty )

Convert Frequency to PWMx byte register.

Warning: Duty cycle can be set from 0% to 99.6%

Note: BLINKx(%) = (PWMx(8b) / 256) * 100

Parameters

[in,out]	byte	- Pointer to output value
[in]	duty	- Duty Cycle in %

Returns: FctERR - error code

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◆ PCA9532_Freq_To_Byte()

FctERR PCA9532_Freq_To_Byte	(	uint8_t *const	byte,
		const float	freq )

Convert Frequency to PSCx byte register.

Warning: beware for higher frequencies, 152Hz max (0 in reg) drops to 76Hz (1 in reg), 50Hz (3 in reg)....

Note: BLINKx(Hz) = (PSCx(8b) + 1) / 152

Parameters

[in,out]	byte	- Pointer to output value
[in]	freq	- Frequency in Hz (0.592Hz to 152Hz)

Returns: FctERR - error code

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◆ PCA9532_Read_INPUT0()

FctERR PCA9532_Read_INPUT0	(	PCA9532_t *const	pCpnt,
		uPCA9532_REG__INPUT0 *const	pINPUT0 )

Read LED0 to LED7 input register.

Warning: TODO: test if working in auto-increment mode

Parameters

[in]	pCpnt	- Pointer to PCA9532 component
[in,out]	pINPUT0	- Pointer to INPUT0 output variable

Returns: FctERR - ErrorCode

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◆ PCA9532_Read_INPUT1()

FctERR PCA9532_Read_INPUT1	(	PCA9532_t *const	pCpnt,
		uPCA9532_REG__INPUT1 *const	pINPUT1 )

Read LED8 to LED15 input register.

Parameters

[in]	pCpnt	- Pointer to PCA9532 component
[in,out]	pINPUT1	- Pointer to INPUT1 output variable

Returns: FctERR - ErrorCode

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◆ PCA9532_ReadRegister()

FctERR PCA9532_ReadRegister	(	PCA9532_t *const	pCpnt,
		const PCA9532_reg	reg,
		uint8_t *const	val )

Read register from PCA9532.

Parameters

[in]	pCpnt	- Pointer to PCA9532 component
[in]	reg	- Register address to read from
[in,out]	val	- Pointer to the data for receive

Returns: FctERR - ErrorCode

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◆ PCA9532_RST_GPIO_Init()

void PCA9532_RST_GPIO_Init	(	PCA9532_t *const	pCpnt,
		GPIO_TypeDef *const	GPIOx,
		const uint16_t	GPIO_Pin,
		const GPIO_PinState	GPIO_Active )

Reset GPIO pin init for PCA9532.

Weak Functions: PCA9532 Reset GPIO pin init may be user implemented if needed

Parameters

[in]	pCpnt	- Pointer to PCA9532 component
[in]	GPIOx	- RST port
[in]	GPIO_Pin	- RST pin
[in]	GPIO_Active	RST pin active state

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◆ PCA9532_RST_GPIO_Set()

void PCA9532_RST_GPIO_Set	(	PCA9532_t *const	pCpnt,
		const bool	state )

Reset GPIO pin setter for PCA9532.

Weak Functions: PCA9532 Reset GPIO pin setter may be user implemented if needed

Parameters

[in]	pCpnt	- Pointer to PCA9532 component
[in]	state	- state to write on RST pin (0: inactive, 1: active)

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◆ PCA9532_Set_Auto_Increment()

FctERR PCA9532_Set_Auto_Increment	(	PCA9532_t *const	pCpnt,
		const PCA95xx_reg_inc	inc )

Set auto increment option for PCA9532 registers.

Parameters

[in,out]	pCpnt	- Pointer to PCA9532 component
[in]	inc	- auto increment option

Returns: FctERR - error code

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◆ PCA9532_Set_Mode_LED()

FctERR PCA9532_Set_Mode_LED	(	PCA9532_t *const	pCpnt,
		const PCA9xxx_chan	chan,
		const PCA95xx_ledsel	mode )

Set PCA9532 peripheral LED mode.

Parameters

[in,out]	pCpnt	- Pointer to PCA9532 component
[in]	chan	- PCA9532 channel
[in]	mode	- channel mode (on/off/PWM0/PWM1)

Returns: FctERR - error code

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◆ PCA9532_Set_Mode_LEDs()

FctERR PCA9532_Set_Mode_LEDs	(	PCA9532_t *const	pCpnt,
		const uint16_t	chans,
		const PCA95xx_ledsel	mode )

Set PCA9532 peripheral multiple LEDs mode.

Parameters

[in,out]	pCpnt	- Pointer to PCA9532 component
[in]	chans	- PCA9532 channels mask (masked channels will be affected to new mode, other ones remaining unchanged)
[in]	mode	- channel mode (on/off/PWM0/PWM1)

Returns: FctERR - error code

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◆ PCA9532_SetDuty()

FctERR PCA9532_SetDuty	(	PCA9532_t *const	pCpnt,
		const float	duty,
		const bool	index )

Set PWMx duty cycle of PCA9532.

Parameters

[in,out]	pCpnt	- Pointer to PCA9532 component
[in]	duty	- Duty Cycle (in %)
[in]	index	- false: PWM0 / true: PWM1

Returns: FctERR - ErrorCode

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◆ PCA9532_SetFrequency()

FctERR PCA9532_SetFrequency	(	PCA9532_t *const	pCpnt,
		const float	freq,
		const bool	index )

Set PSCx frequency of PCA9532.

Parameters

[in,out]	pCpnt	- Pointer to PCA9532 component
[in]	freq	- Frequency (in Hz)
[in]	index	- false: PSC0 / true: PSC1

Returns: FctERR - ErrorCode

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Data Structures

Functions

Detailed Description

Function Documentation

◆ PCA9532_Byte_To_Duty()

◆ PCA9532_Byte_To_Freq()

◆ PCA9532_DutyCycle_To_Byte()

◆ PCA9532_Freq_To_Byte()

◆ PCA9532_Read_INPUT0()

◆ PCA9532_Read_INPUT1()

◆ PCA9532_ReadRegister()

◆ PCA9532_RST_GPIO_Init()

◆ PCA9532_RST_GPIO_Set()

◆ PCA9532_Set_Auto_Increment()

◆ PCA9532_Set_Mode_LED()

◆ PCA9532_Set_Mode_LEDs()

◆ PCA9532_SetDuty()

◆ PCA9532_SetFrequency()