Clock Operations

Functions
void	test_clock_uptime (void)
	Test clock uptime APIs functionality.
void	test_clock_cycle_32 (void)
	Test 32-bit clock cycle functionality.
void	test_clock_cycle_64 (void)
	Test 64-bit clock cycle functionality.
static void	duration_expire (struct k_timer *timer)
static void	stop_expire (struct k_timer *timer)
static void	init_data_count (void)
void	test_ms_time_duration (void)
	Test millisecond time duration.

Detailed Description

Function Documentation

duration_expire()

static void duration_expire ( struct k_timer * timer )

static

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

init_data_count()

static void init_data_count ( void )

static

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

stop_expire()

static void stop_expire ( struct k_timer * timer )

static

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

test_clock_cycle_32()

void test_clock_cycle_32

(

void

)

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

Test 32-bit clock cycle functionality.

Test Objective:

• The kernel architecture provide a 32bit monotonically increasing cycle counter
• This routine tests the k_cycle_get_32() and k_uptime_get_32() k_cycle_get_32() get cycles by accessing hardware clock. k_uptime_get_32() return cycles by transforming ticks into cycles.

Testing techniques

• Functional and black box testing

Prerequisite Condition:

• N/A

Input Specifications:

• N/A

Expected Test Result:

• The timer increases monotonically

Pass/Fail criteria:

• Success if cycles increase monotonically, failure otherwise.

Test Procedure:

1. At milli-second boundary, get cycles repeatedly by k_cycle_get_32() till cycles increased
2. At milli-second boundary, get cycles repeatedly by k_uptime_get_32() till cycles increased
3. Cross check cycles gotten by k_cycle_get_32() and k_uptime_get_32(), the delta cycle should be greater than 1 milli-second.

Assumptions and Constraints

• N/A

See also

k_cycle_get_32(), k_uptime_get_32()

TESTPOINT: cycle elapse

TESTPOINT: cycle/uptime cross check

test_clock_cycle_64()

void test_clock_cycle_64

(

void

)

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

Test 64-bit clock cycle functionality.

test_clock_uptime()

void test_clock_uptime

(

void

)

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

Test clock uptime APIs functionality.

See also

k_uptime_get(), k_uptime_get_32(), k_uptime_delta()

TESTPOINT: uptime elapse

TESTPOINT: uptime elapse lower 32-bit

TESTPOINT: uptime straddled ms boundary

TESTPOINT: uptime delta

test_ms_time_duration()

void test_ms_time_duration

(

void

)

#include </home/runner/work/safety-doc/zephyr/tests/kernel/common/src/clock.c>

Test millisecond time duration.

initialize a timer, then providing time duration in millisecond, and check the duration time whether correct.

See also

k_timer_init(), k_timer_start(), k_timer_stop(), k_busy_wait()

TESTPOINT: waiting time less than duration and check the count

TESTPOINT: proving duration in millisecond

TESTPOINT: waiting time more than duration and check the count

cleanup environment