MTCH6102.c File Reference

MTCH6102 Driver. More...

#include "MTCH6102.h"

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Macros
#define	MTCH6102_TIME_BETWEEN_TRANSACTIONS   1
	1ms delay between every MTCH6102 transactions

Functions
FctERR	MTCH6102_Init (const uint8_t idx, I2C_HandleTypeDef *const hi2c, const uint16_t devAddress)
	Initialization for MTCH6102 peripheral.
FctERR	MTCH6102_Init_Single (void)
	Initialization for MTCH6102 peripheral.
FctERR	MTCH6102_Write (I2C_slave_t *const pSlave, const uint8_t *data, const uint16_t addr, const uint16_t nb)
	I2C Write function for MTCH6102.
FctERR	MTCH6102_Read (I2C_slave_t *const pSlave, uint8_t *data, const uint16_t addr, const uint16_t nb)
	I2C Read function for MTCH6102.

Detailed Description

MTCH6102 Driver.

Author

SMFSW

Copyright

MIT (c) 2017-2026, SMFSW

MTCH6102: Low-Power Projected Capacitive Touch Controller

Macro Definition Documentation

MTCH6102_TIME_BETWEEN_TRANSACTIONS

#define MTCH6102_TIME_BETWEEN_TRANSACTIONS   1

1ms delay between every MTCH6102 transactions

Function Documentation

MTCH6102_Init()

FctERR MTCH6102_Init	(	const uint8_t	idx,
		I2C_HandleTypeDef *const	hi2c,
		const uint16_t	devAddress )

Initialization for MTCH6102 peripheral.

Warning

When MTCH6102 is powering up, you should wait around 100ms before you address the first transaction to it

write rx/tx number if needed other than default (9,6), (by implementing your own init sequence)

Note

set MTCH6102_Set_Centered_Coord(true) if 0,0 point needs to be centered on the pad (by implementing your own init sequence)

Parameters

[in]	idx	- MTCH6102 index
[in]	hi2c	- pointer to MTCH6102 I2C instance
[in]	devAddress	- MTCH6102 device address

Returns

FctERR - error code

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MTCH6102_Init_Single()

FctERR MTCH6102_Init_Single

(

void

)

Initialization for MTCH6102 peripheral.

Warning

When MTCH6102 is powering up, you should wait around 100ms before you address the first transaction to it

In case multiple devices (defined by I2C_MTCH6102_NB > 1), you shall use MTCH6102_Init instead

Returns

FctERR - error code

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MTCH6102_Read()

FctERR MTCH6102_Read	(	I2C_slave_t *const	pSlave,
		uint8_t *	data,
		const uint16_t	addr,
		const uint16_t	nb )

I2C Read function for MTCH6102.

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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MTCH6102_Write()

FctERR MTCH6102_Write	(	I2C_slave_t *const	pSlave,
		const uint8_t *	data,
		const uint16_t	addr,
		const uint16_t	nb )

I2C Write function for MTCH6102.

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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