ac_callback.c File Reference

SAM AC - Analog Comparator Callback Driver.

Copyright (c) 2013-2018 Microchip Technology Inc. and its subsidiaries.

#include "ac_callback.h"

Functions
void	_ac_interrupt_handler (const uint32_t instance_index)
	Interrupt Handler for AC module. More...
enum status_code	ac_register_callback (struct ac_module *const module, ac_callback_t callback_func, const enum ac_callback callback_type)
	Registers a callback. More...
enum status_code	ac_unregister_callback (struct ac_module *const module, const enum ac_callback callback_type)
	Unregisters a callback. More...

Variables
struct ac_module *	_ac_instance [AC_INST_NUM]

void _ac_interrupt_handler

(

const uint32_t

instance_index

)

Interrupt Handler for AC module.

ISR handler for AC

Handles interrupts as they occur, it will run the callback functions that are registered and enabled.

Parameters

[in]

instance_index

Default value 0

References AC_CALLBACK_COMPARATOR_0, AC_CALLBACK_COMPARATOR_1, and AC_CALLBACK_WINDOW_0.

enum status_code ac_register_callback	(	struct ac_module *const	module,
		ac_callback_t	callback_func,
		const enum ac_callback	callback_type
	)

Registers a callback.

Registers a callback function which is implemented by the user.

Note

The callback must be enabled by ac_enable_callback, in order for the interrupt handler to call it when the conditions for the callback type is met.

Parameters

[in]	module	Pointer to software instance struct
[in]	callback_func	Pointer to callback function
[in]	callback_type	Callback type given by an enum

Return values

STATUS_OK

The function exited successfully

References Assert, and STATUS_OK.

enum status_code ac_unregister_callback	(	struct ac_module *const	module,
		const enum ac_callback	callback_type
	)

Unregisters a callback.

Unregisters a callback function implemented by the user.

Parameters

[in]	module	Pointer to AC software instance struct
[in]	callback_type	Callback type given by an enum

Return values

STATUS_OK

The function exited successfully

References Assert, and STATUS_OK.

struct ac_module* _ac_instance[AC_INST_NUM]

Referenced by ac_init().