drivers/wdt/unit_tests/unit_test.c File Reference

SAM Watchdog Unit test.

Copyright (c) 2013-2020 Microchip Technology Inc. and its subsidiaries.

#include <asf.h>
#include <stdio_serial.h>
#include <string.h>
#include "conf_test.h"

Functions
static void	cdc_uart_init (void)
	Initialize the USART for unit test. More...
int	main (void)
	Run WDT unit tests. More...
static void	run_reset_cause_test (const struct test_case *test)
	Test whether last reset was by Watchdog module. More...
static void	run_wdt_early_warning_test (const struct test_case *test)
	Test Early Warning of Watchdog module. More...
static void	wait_for_wdt_reset (const struct test_case *test)
	Wait for Watchdog module to reset. More...

Variables
struct usart_module	cdc_uart_module
static volatile bool	wdr_flag = false

static void cdc_uart_init ( void  )

static

Initialize the USART for unit test.

Initializes the SERCOM USART used for sending the unit test status to the computer via the EDBG CDC gateway.

References usart_config::baudrate, cdc_uart_module, CONF_STDIO_BAUDRATE, CONF_STDIO_MUX_SETTING, CONF_STDIO_PINMUX_PAD0, CONF_STDIO_PINMUX_PAD1, CONF_STDIO_PINMUX_PAD2, CONF_STDIO_PINMUX_PAD3, usart_config::mux_setting, usart_config::pinmux_pad0, usart_config::pinmux_pad1, usart_config::pinmux_pad2, usart_config::pinmux_pad3, usart_enable(), and usart_get_config_defaults().

Referenced by main().

int main

(

void

)

Run WDT unit tests.

Initializes the system and serial output, then sets up the WDT unit test suite and runs it.

References cdc_uart_init(), wdt_conf::clock_source, DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, wdt_conf::early_warning_period, wdt_conf::enable, NULL, run_reset_cause_test(), run_wdt_early_warning_test(), system_get_reset_cause(), system_init(), test_suite_run(), wdt_conf::timeout_period, wait_for_wdt_reset(), wdr_flag, wdt_get_config_defaults(), wdt_reset_count(), and wdt_set_config().

static void run_reset_cause_test ( const struct test_case *  test )

static

Test whether last reset was by Watchdog module.

This function tests whether the last reset was caused by timeout of Watchdog module

Parameters

test	Current test case.

References test_assert_true, and wdr_flag.

Referenced by main().

static void run_wdt_early_warning_test ( const struct test_case *  test )

static

Test Early Warning of Watchdog module.

If last reset cause was not Watchdog, following the Watchdog initialization and enabling in the previous test, this function will wait for CONF_WDT_EARLY_WARNING_WAIT_MS and will check if early warning flag is set. Consequently, clear the early warning flag.

Parameters

test	Current test case.

References delay_ms, test_assert_true, wdr_flag, wdt_clear_early_warning(), and wdt_is_early_warning().

Referenced by main().

static void wait_for_wdt_reset ( const struct test_case *  test )

static

Wait for Watchdog module to reset.

Wait for CONF_WDT_RESET_WAIT_MS for Watchdog to reset the device

Parameters

test	Current test case.

References delay_ms, and wdr_flag.

Referenced by main().

struct usart_module cdc_uart_module

volatile bool wdr_flag = false

static

Referenced by main(), run_reset_cause_test(), run_wdt_early_warning_test(), and wait_for_wdt_reset().