PCA9952_proc.h File Reference

PCA9952 Driver procedures. More...

#include "sarmfsw.h"
#include "PCA9952.h"

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Data Structures
struct	PCA9952_t
	PCA9952 user interface struct. More...

Macros
#define	PCA9952_NB_CHANNELS   16U
	PCA9952 Number of channels.
#define	PCA9952_DEFAULT_SUBX_CALL_ADDR   (0xECU >> 1U)
	PCA9952 SUBx CALL Address.

Functions
FctERR	PCA9952_Init_Sequence (PCA9952_t *const pCpnt)
	Initialization Sequence for PCA9952 peripheral.
FctERR	PCA9952_calc_IREF (uint8_t *const pIREF, const float Rext, const float current)
	Compute IREF for PCA9952 peripheral.

Variables
PCA9952_t	PCA9952 [I2C_PCA9952_NB]
	PCA9952 User structure.

Detailed Description

PCA9952 Driver procedures.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

PCA9952: 16-channel Fm+ I2C-bus 57 mA constant current LED driver

Macro Definition Documentation

PCA9952_DEFAULT_SUBX_CALL_ADDR

#define PCA9952_DEFAULT_SUBX_CALL_ADDR   (0xECU >> 1U)

PCA9952 SUBx CALL Address.

PCA9952_NB_CHANNELS

#define PCA9952_NB_CHANNELS   16U

PCA9952 Number of channels.

Function Documentation

PCA9952_calc_IREF()

FctERR PCA9952_calc_IREF	(	uint8_t *const	pIREF,
		const float	Rext,
		const float	current )

Compute IREF for PCA9952 peripheral.

Parameters

[in,out]	pIREF	- Pointer to IREF result
[in]	Rext	- Rext value (in KOhm)
[in]	current	- Target current (in mA)

Returns

FctERR - ErrorCode (in case of IREF value overflow)

PCA9952_Init_Sequence()

FctERR PCA9952_Init_Sequence

(

PCA9952_t *const

pCpnt

)

Initialization Sequence for PCA9952 peripheral.

Weak Functions

PCA9952 Init sequence may be user implemented if custom initialization sequence needed

Parameters

[in]

pCpnt

- Pointer to PCA9952 component

Returns

FctERR - ErrorCode

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Variable Documentation

PCA9952

PCA9952_t PCA9952[I2C_PCA9952_NB]

extern

PCA9952 User structure.