clock_failure_detector.c File Reference

SAM XOSC32K Runtime Failure Detector Application.

Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include "conf_example.h"

Macros
#define	ENABLE_XOSC32K_CLOCK_OUT   true
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Functions
static void	init_osculp32k (void)
	Configures and starts the OSCULP32K internal oscillator. More...
static void	init_xosc32k (void)
	Configures and starts the XOSC32K external crystal. More...
int	main (void)
	Main application entry point. More...
static void	sim_xosc32k_failure (bool connection)
	Simulation xosc32k connect or disconnect. More...

#define ENABLE_XOSC32K_CLOCK_OUT   true

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If true, the XOSC32K clock will be routed out to GPIO pin

static void init_osculp32k ( void  )

static

Configures and starts the OSCULP32K internal oscillator.

References system_clock_source_enable(), system_clock_source_osculp32k_get_config_defaults(), system_clock_source_osculp32k_set_config(), and SYSTEM_CLOCK_SOURCE_ULP32K.

Referenced by main().

static void init_xosc32k ( void  )

static

Configures and starts the XOSC32K external crystal.

References system_pinmux_config::direction, system_clock_source_xosc32k_config::enable_clock_failure_detector, system_pinmux_config::mux_position, system_clock_source_xosc32k_config::on_demand, system_clock_source_enable(), system_clock_source_is_ready(), SYSTEM_CLOCK_SOURCE_XOSC32K, system_clock_source_xosc32k_get_config_defaults(), system_clock_source_xosc32k_set_config(), system_pinmux_get_config_defaults(), SYSTEM_PINMUX_PIN_DIR_OUTPUT, and system_pinmux_pin_set_config().

Referenced by main().

int main

(

void

)

Main application entry point.

References init_osculp32k(), init_xosc32k(), port_pin_get_input_level(), port_pin_set_output_level(), sim_xosc32k_failure(), system_flash_set_waitstates(), and system_init().

static void sim_xosc32k_failure ( bool  connection )

static

Simulation xosc32k connect or disconnect.

Simulation xosc32k connect or disconnect

Parameters

[in]

connection

true represent xosc32k is connected

References system_clock_source_is_ready(), and SYSTEM_CLOCK_SOURCE_XOSC32K.

Referenced by main().