SAM TC Unit test.

#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 TC unit tests. More...

static void	run_16bit_capture_and_compare_test (const struct test_case *test)
	Test capture and compare. More...

static void	run_basic_functionality_test (const struct test_case *test)
	Test basic functionality. More...

static void	run_callback_test (const struct test_case *test)
	Test the callback API. More...

static void	run_init_test (const struct test_case *test)
	Test of tc_init() and tc_get_config_defaults() More...

static void	run_reset_32bit_master_test (const struct test_case *test)
	Test initializing and resetting 32-bit TC and reinitialize. More...

static void	tc_callback_function (struct tc_module *const module_inst)
	Function used to test callback API. More...

Variables
bool	basic_functionality_test_passed = false

volatile uint32_t	callback_function_entered = 0

struct usart_module	cdc_uart_module

bool	tc_init_success = 0

struct tc_config	tc_test0_config

struct tc_module	tc_test0_module

struct tc_config	tc_test1_config

struct tc_module	tc_test1_module

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, CONF_STDIO_USART, 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 TC unit tests.

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

References cdc_uart_init(), DEFINE_TEST_ARRAY, DEFINE_TEST_CASE, DEFINE_TEST_SUITE, run_16bit_capture_and_compare_test(), run_basic_functionality_test(), run_callback_test(), run_init_test(), run_reset_32bit_master_test(), system_init(), tc_reset(), tc_test0_module, tc_test1_module, and test_suite_run().

static void run_16bit_capture_and_compare_test ( const struct test_case * test )

static

Test capture and compare.

This test uses TC module 0 as a PWM generator (compare function). TC module 1 will be set to capture the signal from TC module 0 to test the capture functionality.

Parameters

test	Current test case.

References callback_function_entered, tc_config::clock_prescaler, tc_16bit_config::compare_capture_channel, CONF_CAPTURE_CHAN_0, CONF_CAPTURE_CHAN_1, CONF_EIC_MUX, CONF_EIC_PIN, CONF_EVENT_GENERATOR_ID, CONF_EVENT_USED_ID, CONF_TEST_PIN_MUX, CONF_TEST_PIN_OUT, CONF_TEST_TC0, CONF_TEST_TC1, CONF_TEST_TOLERANCE, tc_config::counter_16_bit, extint_chan_conf::detection_criteria, events_config::edge_detect, tc_config::enable_capture_on_channel, tc_pwm_channel::enabled, events_allocate(), events_attach_user(), EVENTS_EDGE_DETECT_NONE, events_get_config_defaults(), EVENTS_PATH_ASYNCHRONOUS, extint_chan_set_config(), EXTINT_DETECT_HIGH, extint_enable_events(), EXTINT_PULL_UP, extint_chan_conf::filter_input_signal, extint_events::generate_event_on_detect, events_config::generator, extint_chan_conf::gpio_pin, extint_chan_conf::gpio_pin_mux, extint_chan_conf::gpio_pin_pull, tc_events::on_event_perform_action, events_config::path, tc_pwm_channel::pin_mux, tc_pwm_channel::pin_out, tc_config::pwm_channel, system_clock_source_get_hz(), SYSTEM_CLOCK_SOURCE_OSC16M, TC_CALLBACK_CC_CHANNEL0, tc_callback_function(), TC_CLOCK_PRESCALER_DIV1, TC_COMPARE_CAPTURE_CHANNEL_0, TC_COMPARE_CAPTURE_CHANNEL_1, tc_enable(), tc_enable_callback(), tc_enable_events(), TC_EVENT_ACTION_PPW, tc_get_capture_value(), tc_get_config_defaults(), tc_init(), tc_init_success, tc_register_callback(), tc_reset(), tc_test0_config, tc_test0_module, tc_test1_config, tc_test1_module, TC_WAVE_GENERATION_MATCH_PWM, test_assert_true, extint_chan_conf::wake_if_sleeping, and tc_config::wave_generation.

Referenced by main().

static void run_basic_functionality_test ( const struct test_case * test )

static

Test basic functionality.

This test tests the basic functionality for the TC. It tests the following functions:

Parameters

test	Current test case.

References basic_functionality_test_passed, CONF_TEST_TC0, tc_enable(), tc_get_config_defaults(), tc_get_count_value(), tc_init(), tc_init_success, tc_reset(), tc_set_count_value(), tc_start_counter(), tc_stop_counter(), tc_test0_config, tc_test0_module, and test_assert_true.

Referenced by main().

static void run_callback_test ( const struct test_case * test )

static

Test the callback API.

This test tests the callback API for the TC. The TC uses one-shot mode.

Parameters

test	Current test case.

References basic_functionality_test_passed, callback_function_entered, tc_16bit_config::compare_capture_channel, CONF_TEST_TC0, tc_config::counter_16_bit, TC_CALLBACK_CC_CHANNEL1, tc_callback_function(), tc_clear_status(), TC_COMPARE_CAPTURE_CHANNEL_0, TC_COMPARE_CAPTURE_CHANNEL_1, tc_disable(), tc_disable_callback(), tc_enable(), tc_enable_callback(), tc_get_config_defaults(), tc_get_status(), tc_init(), tc_init_success, tc_register_callback(), tc_reset(), tc_set_count_value(), TC_STATUS_COUNT_OVERFLOW, tc_test0_config, tc_test0_module, TC_WAVE_GENERATION_MATCH_PWM, test_assert_true, and tc_config::wave_generation.

Referenced by main().

static void run_init_test ( const struct test_case * test )

static

Test of tc_init() and tc_get_config_defaults()

This test is used to initialize the tcx_module structs and associate the given hw module with the struct. This test should be run at the very beginning of testing as other tests depend on the result of this test.

References CONF_TEST_TC0, CONF_TEST_TC1, STATUS_OK, tc_get_config_defaults(), tc_init(), tc_init_success, tc_test0_config, tc_test0_module, tc_test1_config, tc_test1_module, and test_assert_true.

Referenced by main().

static void run_reset_32bit_master_test ( const struct test_case * test )

static

Test initializing and resetting 32-bit TC and reinitialize.

This test tests the software reset of a 32-bit TC by the use of the tc_reset(). It also test re-enabling the two TC modules used in the 32-bit TC into two separate 16-bit TC's.

Parameters