Public function

Functions
void	proxfusion_cfg_setup (proxfusion_cfg_t *cfg)
	Config Object Initialization function.
err_t	proxfusion_init (proxfusion_t *ctx, proxfusion_cfg_t *cfg)
	Initialization function.
err_t	proxfusion_default_cfg (proxfusion_t *ctx)
	Click Default Configuration function.
err_t	proxfusion_generic_write (proxfusion_t *ctx, uint8_t reg, uint8_t *data_buffer, uint8_t len)
	Generic write function.
err_t	proxfusion_generic_read (proxfusion_t *ctx, uint8_t reg, uint8_t *data_buffer, uint8_t len)
	Generic read function.
uint8_t	proxfusion_get_touch (proxfusion_t *ctx)
	Touch event.
err_t	proxfusion_set_system_reg (proxfusion_t *ctx, uint8_t cfg)
	Sets system register.
err_t	proxfusion_set_event_reg (proxfusion_t *ctx, uint8_t cfg)
	Selecting events.

Detailed Description

Function Documentation

proxfusion_cfg_setup()

void proxfusion_cfg_setup

(

proxfusion_cfg_t *

cfg

)

Config Object Initialization function.

Parameters

cfg	Click configuration structure.

This function initializes click configuration structure to init state.

Note

All used pins will be set to unconnected state.

proxfusion_default_cfg()

err_t proxfusion_default_cfg

(

proxfusion_t *

ctx

)

Click Default Configuration function.

Parameters

ctx	Click object.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

This function executes default configuration for ProxFusion click.

Note

Default configuration of the chip contains the settings : Sysyem register:

• PROXFUSION_SYSTEM_RESET
• PROXFUSION_EVENT_MODE_1
• PROXFUSION_CLOCK_16MHz
• PROXFUSION_ATI_ENABLED
• PROXFUSION_ATI_BAND_1_16
• PROXFUSION_SYSTEM_ATI_RESET Event register:
  • PROXFUSION_MASK_SYS_EVENT

proxfusion_generic_read()

err_t proxfusion_generic_read	(	proxfusion_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buffer,
		uint8_t	len )

Generic read function.

Parameters

ctx	Click object.
reg	Register address.
data_buffer	Data buffer to be written.
len	Number of the bytes in data buffer.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

This function reads data from the desired register.

proxfusion_generic_write()

err_t proxfusion_generic_write	(	proxfusion_t *	ctx,
		uint8_t	reg,
		uint8_t *	data_buffer,
		uint8_t	len )

Generic write function.

Parameters

ctx	Click object.
reg	Register address.
data_buffer	Output data buffer
len	Number of the bytes to be read

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

This function writes data to the desired register.

proxfusion_get_touch()

uint8_t proxfusion_get_touch

(

proxfusion_t *

ctx

)

Touch event.

Parameters

ctx	Click object.

Returns

Current touch event ( rignt, left or both )

proxfusion_init()

err_t proxfusion_init	(	proxfusion_t *	ctx,
		proxfusion_cfg_t *	cfg )

Initialization function.

Parameters

ctx	Click object.
cfg	Click configuration structure.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

This function initializes all necessary pins and peripherals used for this click.

proxfusion_set_event_reg()

err_t proxfusion_set_event_reg	(	proxfusion_t *	ctx,
		uint8_t	cfg )

Selecting events.

Parameters

ctx	Click object.
cfg	Event register configuration

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Selection options:

• SAR activation state,
• Power management unit event,
• System event,
• Temperature event,
• Hysteresis UI event,
• Hall-effect event,
• SAR event and
• ProxSense event.

proxfusion_set_system_reg()

err_t proxfusion_set_system_reg	(	proxfusion_t *	ctx,
		uint8_t	cfg )

Sets system register.

Parameters

ctx	Click object.
cfg	System register configuration

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Configuration data (value) consists of multiple settings:

• Software Reset and ACK Reset set on 1 (default),
• Event mode enable,
• Main Clock frequency selection,
• Communications during ATI,
• Re-ATI Band selection,
• Redo ATI on all channels set on 1 (default)
• Reseed all Long-term filters set on 1 (default).