Button R Click Driver

API for configuring and manipulating Button R Click driver. More...

Topics
	Button R PWM Settings
	Settings for configuration of Button R Click driver.
	Button R MikroBUS Map
	MikroBUS pin mapping of Button R Click driver.
	Buttonr_cfg

Functions
void	buttonr_cfg_setup (buttonr_cfg_t *cfg)
	Button R configuration object setup function.
err_t	buttonr_init (buttonr_t *ctx, buttonr_cfg_t *cfg)
	Button R initialization function.
err_t	buttonr_set_duty_cycle (buttonr_t *ctx, float duty_cycle)
	Button R sets PWM duty cycle.
err_t	buttonr_pwm_stop (buttonr_t *ctx)
	Button R stop PWM module.
err_t	buttonr_pwm_start (buttonr_t *ctx)
	Button R start PWM module.
uint8_t	buttonr_get_button_state (buttonr_t *ctx)
	Button R get button state function.

Detailed Description

API for configuring and manipulating Button R Click driver.

Any initialization code needed for MCU to function properly. Do not remove this line or clock might not be set correctly.

Function Documentation

buttonr_cfg_setup()

void buttonr_cfg_setup

(

buttonr_cfg_t *

cfg

)

Button R configuration object setup function.

This function initializes Click configuration structure to initial values.

Parameters

[out]

cfg

: Click configuration structure. See buttonr_cfg_t object definition for detailed explanation.

Returns

Nothing.

Note

The all used pins will be set to unconnected state.

buttonr_get_button_state()

uint8_t buttonr_get_button_state

(

buttonr_t *

ctx

)

Button R get button state function.

This function reads the digital signal from the INT pin which tells us whether the button has been pressed or not.

Parameters

[out]

ctx

: Click context object. See buttonr_t object definition for detailed explanation.

Returns

Function returns pin logical state (1 or 0).

See #err_t definition for detailed explanation.

Note

None.

buttonr_init()

err_t buttonr_init	(	buttonr_t *	ctx,
		buttonr_cfg_t *	cfg )

Button R initialization function.

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

Parameters

[out]	ctx	: Click context object. See buttonr_t object definition for detailed explanation.
[in]	cfg	: Click configuration structure. See buttonr_cfg_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.

buttonr_pwm_start()

err_t buttonr_pwm_start

(

buttonr_t *

ctx

)

Button R start PWM module.

This function starts the PWM moudle output.

Parameters

[out]

ctx

: Click context object. See buttonr_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.

buttonr_pwm_stop()

err_t buttonr_pwm_stop

(

buttonr_t *

ctx

)

Button R stop PWM module.

This function stops the PWM moudle output.

Parameters

[out]

ctx

: Click context object. See buttonr_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.

buttonr_set_duty_cycle()

err_t buttonr_set_duty_cycle	(	buttonr_t *	ctx,
		float	duty_cycle )

Button R sets PWM duty cycle.

This function sets the PWM duty cycle in percentages ( Range[ 0..1 ] ).

Parameters

[out]	ctx	: Click context object. See buttonr_t object definition for detailed explanation.
[in]	duty_ratio	: PWM duty_ratio.

Returns

• 0 - Success,
• -1 - Error.

See #err_t definition for detailed explanation.

Note

None.