void *platform_configure_timer(platform_hw_timer_callback_t bus_tc_cb_ptr)
{
struct tc_config timer_config;
system_interrupt_enter_critical_section();
if (hw_timers[0].timer_usage == 0)
{
hw_timers[0].timer_usage = 1;
platform_cc1_cb = bus_tc_cb_ptr;
tc_get_config_defaults(&timer_config);
timer_config.clock_prescaler = TC_CLOCK_PRESCALER_DIV1;
timer_config.oneshot = true;
timer_config.counter_size = TC_COUNTER_SIZE_32BIT;
timer_config.count_direction = TC_COUNT_DIRECTION_UP;
tc_init(&bus_tc_instance, CONF_BUS_TC_MODULE, &timer_config);
timer_count_per_ms = ((system_gclk_gen_get_hz(timer_config.clock_source)) /1000);
tc_set_count_value(&bus_tc_instance, 0);
tc_enable(&bus_tc_instance);
tc_stop_counter(&bus_tc_instance);
tc_register_callback(&bus_tc_instance, tc_cc1_cb,
TC_CALLBACK_OVERFLOW);
tc_enable_callback(&bus_tc_instance, TC_CALLBACK_OVERFLOW);
hw_timers[0].timer_frequency = (system_gclk_gen_get_hz(timer_config.clock_source));
hw_timers[0].timer_instance = bus_tc_instance;
system_interrupt_leave_critical_section();
return (&hw_timers[0]);
}
system_interrupt_leave_critical_section();
return NULL;
}
/**
* \internal
* \brief 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.
*/
static void run_init_test(const struct test_case *test)
{
tc_get_config_defaults(&tc_test0_config);
enum status_code test1 = tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
tc_get_config_defaults(&tc_test1_config);
enum status_code test2 = tc_init(&tc_test1_module, CONF_TEST_TC1, &tc_test1_config);
if ((test1 == STATUS_OK) && (test2 == STATUS_OK)) {
tc_init_success = true;
}
test_assert_true(test,
(test2 == STATUS_OK) && (test1 == STATUS_OK),
"Failed to initialize modules");
}
/*---------------------------------------------------------------------------*/
void
clock_init(void)
{
#define TIMER_PERIOD UINT16_MAX
#define TIMER TC3
struct tc_config cfg;
tc_get_config_defaults(&cfg);
cfg.clock_source = GCLK_GENERATOR_5;
cfg.clock_prescaler = TC_CLOCK_PRESCALER_DIV1;
cfg.run_in_standby = false;
cfg.counter_16_bit.compare_capture_channel[0] = TIMER_PERIOD;
tc_init(&tc_instance, TIMER, &cfg);
/* tc_register_callback(&tc_instance, clock_irq_callback, TC_CALLBACK_OVERFLOW);*/
tc_register_callback(&tc_instance, clock_irq_callback, TC_CALLBACK_CC_CHANNEL0);
/* tc_register_callback(&tc_instance, clock_irq_callback, TC_CALLBACK_CC_CHANNEL1);
tc_register_callback(&tc_instance, clock_irq_callback, TC_CALLBACK_ERROR);*/
/* tc_enable_callback(&tc_instance, TC_CALLBACK_OVERFLOW);*/
tc_enable_callback(&tc_instance, TC_CALLBACK_CC_CHANNEL0);
/* tc_enable_callback(&tc_instance, TC_CALLBACK_CC_CHANNEL1);
tc_enable_callback(&tc_instance, TC_CALLBACK_ERROR);*/
tc_enable(&tc_instance);
}
static void configure_tc(struct tc_module *tc_instance)
{
//! [setup_6]
struct tc_config config_tc;
struct tc_events config_events;
//! [setup_6]
//! [setup_7]
tc_get_config_defaults(&config_tc);
//! [setup_7]
//! [setup_8]
config_tc.counter_size = TC_COUNTER_SIZE_8BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_FREQ;
config_tc.clock_source = GCLK_GENERATOR_1;
config_tc.clock_prescaler = TC_CLOCK_PRESCALER_DIV64;
//! [setup_8]
//! [setup_9]
tc_init(tc_instance, CONF_TC_MODULE, &config_tc);
//! [setup_9]
//! [setup_10]
config_events.generate_event_on_overflow = true;
tc_enable_events(tc_instance, &config_events);
//! [setup_10]
//! [setup_11]
tc_enable(tc_instance);
//! [setup_11]
}
//! [setup]
void configure_tc(void)
{
//! [setup_config]
struct tc_config config_tc;
//! [setup_config]
//! [setup_config_defaults]
tc_get_config_defaults(&config_tc);
//! [setup_config_defaults]
//! [setup_change_config]
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_PWM;
config_tc.counter_16_bit.compare_capture_channel[0] = (0xFFFF / 4);
//! [setup_change_config]
//! [setup_change_config_pwm]
config_tc.pwm_channel[0].enabled = true;
config_tc.pwm_channel[0].pin_out = PWM_OUT_PIN;
config_tc.pwm_channel[0].pin_mux = PWM_OUT_MUX;
//! [setup_change_config_pwm]
//! [setup_set_config]
tc_init(&tc_instance, PWM_MODULE, &config_tc);
//! [setup_set_config]
//! [setup_enable]
tc_enable(&tc_instance);
//! [setup_enable]
}
/*! \brief to initialize hw timer
*/
uint8_t tmr_init(void)
{
uint8_t timer_multiplier;
tc_get_config_defaults(&timer_config);
#ifdef ENABLE_SLEEP
if(sys_sleep == true)
{
timer_config.clock_source = GCLK_GENERATOR_1;
timer_config.clock_prescaler = TC_CLOCK_PRESCALER_DIV2;
timer_config.run_in_standby=true;
}
#endif
timer_config.counter_16_bit.compare_capture_channel[0] = TIMER_PERIOD;
tc_init(&module_inst, TIMER, &timer_config);
tc_register_callback(&module_inst, tc_ovf_callback, TC_CALLBACK_OVERFLOW);
tc_register_callback(&module_inst, tc_cca_callback, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&module_inst, TC_CALLBACK_OVERFLOW);
tc_enable_callback(&module_inst, TC_CALLBACK_CC_CHANNEL0);
tc_enable(&module_inst);
/* calculate how faster the timer with current clk freq compared to timer with 1Mhz */
#ifdef ENABLE_SLEEP
if(sys_sleep ==true)
{
timer_multiplier = system_gclk_gen_get_hz(1) / 2000000;
}
else
{
timer_multiplier = system_gclk_gen_get_hz(0) / DEF_1MHZ;
}
#else
timer_multiplier = system_gclk_gen_get_hz(0) / DEF_1MHZ;
#endif
return timer_multiplier;
}
/**
* \internal
* \brief Test the callback API
*
* This test tests the callback API for the TC. The TC uses one-shot mode.
*
* \param test Current test case.
*/
static void run_callback_test(const struct test_case *test)
{
test_assert_true(test,
tc_init_success == true,
"TC initialization failed, skipping test");
test_assert_true(test,
basic_functionality_test_passed == true,
"Basic functionality test failed, skipping test");
/* Setup TC0 */
tc_reset(&tc_test0_module);
tc_get_config_defaults(&tc_test0_config);
tc_test0_config.wave_generation = TC_WAVE_GENERATION_MATCH_PWM;
tc_test0_config.counter_16_bit.compare_capture_channel\
[TC_COMPARE_CAPTURE_CHANNEL_0] = 0x03FF;
tc_test0_config.counter_16_bit.compare_capture_channel\
[TC_COMPARE_CAPTURE_CHANNEL_1] = 0x03FA;
tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
/* Setup callbacks */
tc_register_callback(&tc_test0_module, tc_callback_function, TC_CALLBACK_CC_CHANNEL1);
tc_enable_callback(&tc_test0_module, TC_CALLBACK_CC_CHANNEL1);
tc_enable(&tc_test0_module);
while ((tc_get_status(&tc_test0_module) & TC_STATUS_COUNT_OVERFLOW) == 0) {
/* Wait for overflow of TC1*/
}
tc_disable(&tc_test0_module);
tc_clear_status(&tc_test0_module, TC_STATUS_COUNT_OVERFLOW);
test_assert_true(test,
callback_function_entered == 1,
"The callback has failed callback_function_entered = %d",
(int)callback_function_entered);
/* Test disable callback function */
tc_disable_callback(&tc_test0_module, TC_CALLBACK_CC_CHANNEL1);
tc_set_count_value(&tc_test0_module, 0x00000000);
tc_enable(&tc_test0_module);
while ((tc_get_status(&tc_test0_module) & TC_STATUS_COUNT_OVERFLOW) == 0) {
/* Wait for overflow of TC1*/
}
/* Test tc_disable() */
tc_disable(&tc_test0_module);
test_assert_true(test,
callback_function_entered == 1,
"Disabling the callback has failed");
}
/** Configures TC function with the driver.
*/
static void configure_tc(void)
{
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.counter_16_bit.value = TC_COUNT_VALUE;
tc_init(&tc_instance, CONF_TC_INSTANCE, &config_tc);
tc_enable(&tc_instance);
}
void us_ticker_init(void)
{
uint32_t cycles_per_us;
uint32_t prescaler = 0;
struct tc_config config_tc;
enum status_code ret_status;
if (us_ticker_inited) return;
us_ticker_inited = 1;
if (g_sys_init == 0) {
system_init();
g_sys_init = 1;
}
tc_get_config_defaults(&config_tc);
cycles_per_us = system_gclk_gen_get_hz(config_tc.clock_source) / 1000000;
MBED_ASSERT(cycles_per_us > 0);
/*while((cycles_per_us & 1) == 0 && prescaler <= 10) {
cycles_per_us = cycles_per_us >> 1;
prescaler++;
}*/
while((cycles_per_us > 1) && (prescaler <= 10)) {
cycles_per_us = cycles_per_us >> 1;
prescaler++;
}
if (prescaler >= 9) {
prescaler = 7;
} else if (prescaler >= 7) {
prescaler = 6;
} else if (prescaler >= 5) {
prescaler = 5;
}
config_tc.clock_prescaler = TC_CTRLA_PRESCALER(prescaler);
config_tc.counter_size = TC_COUNTER_SIZE_32BIT;
config_tc.run_in_standby = true;
config_tc.counter_32_bit.value = 0;
config_tc.counter_32_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_0] = 0xFFFFFFFF;
config_tc.counter_32_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_1] = 0xFFFFFFFF;
/* Initialize the timer */
ret_status = tc_init(&us_ticker_module, TICKER_COUNTER_uS, &config_tc);
MBED_ASSERT(ret_status == STATUS_OK);
/* Register callback function */
tc_register_callback(&us_ticker_module, (tc_callback_t)us_ticker_irq_handler_internal, TC_CALLBACK_CC_CHANNEL0);
/* Enable the timer module */
tc_enable(&us_ticker_module);
}
/** Configures TC function with the driver.
*/
static void configure_tc(void)
{
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
config_tc.counter_16_bit.compare_capture_channel[0] = 2000;
config_tc.clock_prescaler=TC_CLOCK_PRESCALER_DIV1024;
tc_init(&tc_instance, CONF_TC_INSTANCE, &config_tc);
tc_enable(&tc_instance);
}
void configure_tc(void)
{
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.clock_source = GCLK_GENERATOR_3;
config_tc.clock_prescaler = TC_CLOCK_PRESCALER_DIV1024;
config_tc.counter_size = TC_COUNTER_SIZE_8BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_FREQ;
config_tc.count_direction = TC_COUNT_DIRECTION_UP;
tc_init(&tc_instance, TC4, &config_tc);
tc_enable(&tc_instance);
}
/**
* \internal
* \brief Test basic functionality.
*
* This test tests the basic functionality for the TC. It tests the following functions:
* - tc_get_count_value()
* - tc_stop_counter()
* - tc_set_count_value()
* - tc_start_counter()
*
* \param test Current test case.
*/
static void run_basic_functionality_test(const struct test_case *test)
{
test_assert_true(test,
tc_init_success == true,
"TC initialization failed, skipping test");
/* Setup TC0 */
tc_reset(&tc_test0_module);
tc_get_config_defaults(&tc_test0_config);
tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
tc_enable(&tc_test0_module);
/* Test tc_get_count_value() */
uint32_t test_val0 = tc_get_count_value(&tc_test0_module);
test_assert_true(test,
test_val0 > 0,
"The tc_get_count_value() returned 0 expected larger value");
/* Test tc_stop_counter() */
tc_stop_counter(&tc_test0_module);
uint32_t test_val1 = tc_get_count_value(&tc_test0_module);
uint32_t test_val2 = tc_get_count_value(&tc_test0_module);
test_assert_true(test,
test_val1 == test_val2,
"The counter failed to stop");
/* Test tc_set_count_value() */
tc_set_count_value(&tc_test0_module, 0x00FF);
test_assert_true(test,
tc_get_count_value(&tc_test0_module) == 0x00FF,
"tc_set_count_value() have failed");
/* Test tc_start_counter() */
tc_start_counter(&tc_test0_module);
test_assert_true(test,
tc_get_count_value(&tc_test0_module) > 0x00FF,
"tc_get_count_value() have failed");
basic_functionality_test_passed = true;
}
void configure_tc3(void)
{
REG_GCLK_GENDIV = 1 << 8 | 2;
REG_GCLK_GENCTRL =
1 << 21 | /* run in stdby */
1 << 16 | /* enable */
5 << 8 | /* XOSC32 is source */
2 << 0; /* output to GCLKx */
/* enable GCLKx for TC0/TC1, clocked at 32.768 kHz */
REG_GCLK_CLKCTRL = 1 << 14 | 2 << 8 | 0x0013;
TC3_WAIT_BUSY();
//! [setup_config]
struct tc_config config_tc;
//! [setup_config]
//! [setup_config_defaults]
tc_get_config_defaults(&config_tc);
//! [setup_config_defaults]
//! [setup_change_config]
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_NORMAL_PWM;
config_tc.counter_16_bit.compare_capture_channel[0] = 0x0101;
//! [setup_change_config]
//! [setup_change_config_pwm]
//config_tc.pwm_channel[0].enabled = true;
//config_tc.pwm_channel[0].pin_out = PWM_OUT_PIN;
//config_tc.pwm_channel[0].pin_mux = PWM_OUT_MUX;
//! [setup_change_config_pwm]
//! [setup_set_config]
//tc_init(&tc_instance, PWM_MODULE, &config_tc);
tc_init(&tc3_instance, TC3, &config_tc);
//! [setup_set_config]
//! [setup_enable]
tc_enable(&tc3_instance);
//! [setup_enable]
configure_tc3_callbacks();
}
/** Set up the measurement and comparison timers for calibration.
* - Configure the measurement timer to run from the CPU clock, in capture
* mode.
* - Configure the reference timer to run from the reference clock, generating
* a capture every time the calibration resolution count is met.
*/
static void setup_tc_channels(void)
{
struct tc_config config;
tc_get_config_defaults(&config);
/* Configure measurement timer to run from Fcpu and capture */
config.counter_size = TC_COUNTER_SIZE_32BIT;
config.clock_prescaler = TC_CLOCK_PRESCALER_DIV1;
config.wave_generation = TC_WAVE_GENERATION_NORMAL_FREQ;
config.enable_capture_on_channel[0] = true;
tc_init(&tc_calib, CONF_TC_MEASUREMENT, &config);
/* Configure reference timer to run from reference clock and capture when the resolution count is met */
config.counter_size = TC_COUNTER_SIZE_16BIT;
config.clock_source = REFERENCE_CLOCK;
config.enable_capture_on_channel[0] = false;
config.counter_16_bit.compare_capture_channel[0] = (1 << CALIBRATION_RESOLUTION);
tc_init(&tc_comp, CONF_TC_REFERENCE, &config);
}
/*!
* @brief Configures TC6 of the MCU
*
* @param[in] NULL
*
* @param[out] NULL
*
* @return NULL
*
*/
void tc6_configure(void)
{
/* TC's configuration structure */
struct tc_config config_tc;
/* Get TC configuration default */
tc_get_config_defaults(&config_tc);
/* set the counter size */
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
/* set TC GLCK */
config_tc.clock_source = GCLK_GENERATOR_1;
/* initialize TC6 with current configurations */
tc_init(&tc6_instance,TC6,&config_tc);
/* enable the TC module */
tc_enable(&tc6_instance);
}
void sys_init_timing(void)
{
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
config_tc.counter_16_bit.compare_capture_channel[0] = 0x5DC0;
config_tc.clock_source = GCLK_GENERATOR_0;
config_tc.clock_prescaler = TC_CLOCK_PRESCALER_DIV2;
tc_init(&tc_instance, TIMER, &config_tc);
tc_enable(&tc_instance);
tc_register_callback(&tc_instance, tc_callback, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&tc_instance, TC_CALLBACK_CC_CHANNEL0);
/* Enable system interrupts. */
system_interrupt_enable_global();
}
void hw_timer_init(void)
{
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_size = TC_COUNTER_SIZE_16BIT;
config_tc.clock_source = GCLK_GENERATOR_0;
config_tc.clock_prescaler = TC_CLOCK_PRESCALER_DIV1024;
config_tc.counter_8_bit.period = 0;
config_tc.counter_16_bit.compare_capture_channel[0] = TC_COUNT_1SEC;
config_tc.counter_16_bit.compare_capture_channel[1] = 0xFFFF;
tc_init(&tc_instance, CONF_TC_MODULE, &config_tc);
tc_enable(&tc_instance);
tc_register_callback(&tc_instance, tc_cc0_cb,
TC_CALLBACK_CC_CHANNEL0);
}
void Adafruit_ZeroTimer::configure(tc_clock_prescaler prescale, tc_counter_size countersize, tc_wave_generation wavegen, tc_count_direction countdir)
{
if (_timernum > TC_INST_MAX_ID) return;
Tc *const tc_modules[TC_INST_NUM] = TC_INSTS;
_countersize = countersize;
tc_get_config_defaults(&config_tc);
if (countersize == TC_COUNTER_SIZE_8BIT) {
config_tc.counter_8_bit.period = 0xFF;
}
config_tc.clock_prescaler = prescale;
config_tc.counter_size = countersize;
config_tc.wave_generation = wavegen;
config_tc.count_direction = countdir;
// initialize
tc_init(&tc_instance, tc_modules[_timernum - TC_INSTANCE_OFFSET], &config_tc);
}
/*!
* @brief Configures TC4 of the MCU
*
* @param[in] NULL
*
* @param[out] NULL
*
* @return NULL
*
*/
void tc4_configure (void)
{
/* TC's configuration structure */
struct tc_config config_tc;
/* Get TC configuration default */
tc_get_config_defaults(&config_tc);
/* set TC GLCK */
config_tc.clock_source = GCLK_GENERATOR_1;
/* Set the initial compare value */
config_tc.counter_16_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_0] = 500;
/* initialize TC4 with current configurations */
tc_init(&tc4_instance, TC4, &config_tc);
/* enable the TC module */
tc_enable(&tc4_instance);
/* Stop the counter */
tc_stop_counter(&tc4_instance);
}
/*
* \brief Initialize and start timer for tick
*
* Function that sets up a timer to use for os tick. The same timer is also
* used as the sleep timer.
* The timer runs at 48MHz, i.e. with no prescaler on GCLK0. Wavegen function
* Match Frequency is chosen to reload the count register on every CC0 match.
* 8 bit counter mode must not be chosen.
* The function is weakly defined in freeRTOS, and redefined here.
*/
void vPortSetupTimerInterrupt(void)
{
// Struct for configuring TC
struct tc_config tcconf;
// Set up configuration values
tc_get_config_defaults(&tcconf);
tcconf.counter_size = TC_COUNTER_SIZE_32BIT;
tcconf.run_in_standby = true;
tcconf.clock_prescaler = TC_CLOCK_PRESCALER_DIV1;
tcconf.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
// Initialize the TC
tc_init(&tc, TICK_TC, &tcconf);
// Register and enable callback for freeRTOS tick handler
tc_register_callback(&tc, (tc_callback_t) xPortSysTickHandler, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&tc, TC_CALLBACK_CC_CHANNEL0);
// Set top value equal to one os tick
tc_set_top_value(&tc, TIMER_RELOAD_VALUE_ONE_TICK);
// Enable the timer
tc_enable(&tc);
}
/**
* \internal
* \brief 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.
*
* \param test Current test case.
*/
static void run_reset_32bit_master_test(const struct test_case *test)
{
test_assert_true(test,
tc_init_success == true,
"TC initialization failed, skipping test");
/* Configure 32-bit TC module and run test*/
tc_reset(&tc_test0_module);
tc_get_config_defaults(&tc_test0_config);
tc_test0_config.counter_size = TC_COUNTER_SIZE_32BIT;
tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
tc_enable(&tc_test0_module);
while (tc_is_syncing(&tc_test0_module)) {
/* Synchronize enable */
}
test_assert_true(test,
tc_test0_module.hw->COUNT32.CTRLA.reg & TC_CTRLA_ENABLE,
"Failed first enable of 32-bit TC");
/* Reset and test if both TC modules are disabled after reset */
tc_reset(&tc_test0_module);
while (tc_is_syncing(&tc_test0_module)) {
/* Synchronize reset */
}
test_assert_false(test,
tc_test0_module.hw->COUNT32.CTRLA.reg & TC_CTRLA_ENABLE,
"Failed reset of 32-bit master TC TEST0");
test_assert_false(test,
tc_test1_module.hw->COUNT32.CTRLA.reg & TC_CTRLA_ENABLE,
"Failed reset of 32-bit slave TC TEST1");
/* Change to 16-bit counter on TC0 */
tc_test0_config.counter_size = TC_COUNTER_SIZE_16BIT;
tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
tc_enable(&tc_test0_module);
while (tc_is_syncing(&tc_test0_module)) {
/* Synchronize enable */
}
tc_init(&tc_test1_module, CONF_TEST_TC1, &tc_test1_config);
tc_enable(&tc_test1_module);
while (tc_is_syncing(&tc_test1_module)) {
/* Synchronize enable */
}
test_assert_true(test,
tc_test0_module.hw->COUNT16.CTRLA.reg & TC_CTRLA_ENABLE,
"Failed re-enable of TC TEST0");
test_assert_true(test,
tc_test1_module.hw->COUNT16.CTRLA.reg & TC_CTRLA_ENABLE,
"Failed re-enable of TC TEST1");
}
/** Initializes the XOSC32K crystal failure detector, and starts it.
*
* \param[in] ok_callback Callback function to run upon XOSC32K operational
* \param[in] fail_callback Callback function to run upon XOSC32K failure
*/
static void init_xosc32k_fail_detector(
const tc_callback_t ok_callback,
const tc_callback_t fail_callback)
{
/* TC pairs share the same clock, ensure reference and crystal timers use
* different clocks */
Assert(Abs(_tc_get_inst_index(CONF_TC_OSC32K) -
_tc_get_inst_index(CONF_TC_XOSC32K)) >= 2);
/* The crystal detection cycle count must be less than the reference cycle
* count, so that the reference timer is periodically reset before expiry */
Assert(CRYSTAL_RESET_CYCLES < CRYSTAL_FAIL_CYCLES);
/* Must use different clock generators for the crystal and reference, must
* not be CPU generator 0 */
Assert(GCLK_GENERATOR_XOSC32K != GCLK_GENERATOR_OSC32K);
Assert(GCLK_GENERATOR_XOSC32K != GCLK_GENERATOR_0);
Assert(GCLK_GENERATOR_OSC32K != GCLK_GENERATOR_0);
/* Configure and enable the XOSC32K GCLK generator */
struct system_gclk_gen_config xosc32k_gen_conf;
system_gclk_gen_get_config_defaults(&xosc32k_gen_conf);
xosc32k_gen_conf.source_clock = SYSTEM_CLOCK_SOURCE_XOSC32K;
system_gclk_gen_set_config(GCLK_GENERATOR_XOSC32K, &xosc32k_gen_conf);
system_gclk_gen_enable(GCLK_GENERATOR_XOSC32K);
/* Configure and enable the reference clock GCLK generator */
struct system_gclk_gen_config ref_gen_conf;
system_gclk_gen_get_config_defaults(&ref_gen_conf);
ref_gen_conf.source_clock = SYSTEM_CLOCK_SOURCE_OSC32K;
system_gclk_gen_set_config(GCLK_GENERATOR_OSC32K, &ref_gen_conf);
system_gclk_gen_enable(GCLK_GENERATOR_OSC32K);
/* Set up crystal counter - when target count elapses, trigger event */
struct tc_config tc_xosc32k_conf;
tc_get_config_defaults(&tc_xosc32k_conf);
tc_xosc32k_conf.clock_source = GCLK_GENERATOR_XOSC32K;
tc_xosc32k_conf.counter_16_bit.compare_capture_channel[0] =
CRYSTAL_RESET_CYCLES;
tc_xosc32k_conf.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
tc_init(&tc_xosc32k, CONF_TC_XOSC32K, &tc_xosc32k_conf);
/* Set up reference counter - when event received, restart */
struct tc_config tc_osc32k_conf;
tc_get_config_defaults(&tc_osc32k_conf);
tc_osc32k_conf.clock_source = GCLK_GENERATOR_OSC32K;
tc_osc32k_conf.counter_16_bit.compare_capture_channel[0] =
CRYSTAL_FAIL_CYCLES;
tc_osc32k_conf.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
tc_init(&tc_osc32k, CONF_TC_OSC32K, &tc_osc32k_conf);
/* Configure event channel and link it to the xosc32k counter */
struct events_config config;
struct events_resource event;
events_get_config_defaults(&config);
config.edge_detect = EVENTS_EDGE_DETECT_NONE;
config.generator = CONF_EVENT_GENERATOR_ID;
config.path = EVENTS_PATH_ASYNCHRONOUS;
events_allocate(&event, &config);
/* Configure event user and link it to the osc32k counter */
events_attach_user(&event, CONF_EVENT_USED_ID);
/* Enable event generation for crystal counter */
struct tc_events tc_xosc32k_events = { .generate_event_on_overflow = true };
tc_enable_events(&tc_xosc32k, &tc_xosc32k_events);
/* Enable event reception for reference counter */
struct tc_events tc_osc32k_events = { .on_event_perform_action = true };
tc_osc32k_events.event_action = TC_EVENT_ACTION_RETRIGGER;
tc_enable_events(&tc_osc32k, &tc_osc32k_events);
/* Enable overflow callback for the crystal counter - if crystal count
* has been reached, crystal is operational */
tc_register_callback(&tc_xosc32k, ok_callback, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&tc_xosc32k, TC_CALLBACK_CC_CHANNEL0);
/* Enable compare callback for the reference counter - if reference count
* has been reached, crystal has failed */
tc_register_callback(&tc_osc32k, fail_callback, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&tc_osc32k, TC_CALLBACK_CC_CHANNEL0);
/* Start both crystal and reference counters */
tc_enable(&tc_xosc32k);
tc_enable(&tc_osc32k);
}
/** Main application entry point. */
int main(void)
{
system_init();
system_flash_set_waitstates(2);
init_osc32k();
init_xosc32k();
init_xosc32k_fail_detector(
xosc32k_ok_callback, xosc32k_fail_callback);
#if ENABLE_CPU_CLOCK_OUT == true
/* Configure a GPIO pin as the CPU clock output */
struct system_pinmux_config clk_out_pin;
system_pinmux_get_config_defaults(&clk_out_pin);
clk_out_pin.direction = SYSTEM_PINMUX_PIN_DIR_OUTPUT;
clk_out_pin.mux_position = CONF_CLOCK_PIN_MUX;
system_pinmux_pin_set_config(CONF_CLOCK_PIN_OUT, &clk_out_pin);
#endif
for (;;) {
static bool old_run_osc = true;
bool new_run_osc =
(port_pin_get_input_level(BUTTON_0_PIN) == BUTTON_0_INACTIVE);
/* Check if the XOSC32K needs to be started or stopped when the board
* button is pressed or released */
if (new_run_osc != old_run_osc) {
if (new_run_osc) {
system_clock_source_enable(SYSTEM_CLOCK_SOURCE_XOSC32K);
while(!system_clock_source_is_ready(
SYSTEM_CLOCK_SOURCE_XOSC32K));
}
else {
system_clock_source_disable(SYSTEM_CLOCK_SOURCE_XOSC32K);
}
old_run_osc = new_run_osc;
}
}
}
/**
* \brief Configures the DAC in event triggered mode.
*
* Configures the DAC to use the module's default configuration, with output
* channel mode configured for event triggered conversions.
*
* \param dev_inst Pointer to the DAC module software instance to initialize
*/
static void configure_dac(struct dac_module *dac_module)
{
struct dac_config config;
struct dac_chan_config channel_config;
/* Get the DAC default configuration */
dac_get_config_defaults(&config);
/* Switch to GCLK generator 0 */
config.clock_source = GCLK_GENERATOR_0;
dac_init(dac_module, DAC, &config);
/* Get the default DAC channel config */
dac_chan_get_config_defaults(&channel_config);
/* Set the channel configuration, and enable it */
dac_chan_set_config(dac_module, DAC_CHANNEL_0, &channel_config);
dac_chan_enable(dac_module, DAC_CHANNEL_0);
/* Enable event triggered conversions */
struct dac_events events = { .on_event_start_conversion = true };
dac_enable_events(dac_module, &events);
dac_enable(dac_module);
}
/**
* \brief Configures the TC to generate output events at the sample frequency.
*
* Configures the TC in Frequency Generation mode, with an event output once
* each time the audio sample frequency period expires.
*
* \param dev_inst Pointer to the TC module software instance to initialize
*/
static void configure_tc(struct tc_module *tc_module)
{
struct tc_config config;
tc_get_config_defaults(&config);
config.clock_source = GCLK_GENERATOR_0;
config.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
tc_init(tc_module, TC3, &config);
/* Enable periodic event output generation */
struct tc_events events = { .generate_event_on_overflow = true };
tc_enable_events(tc_module, &events);
/* Set the timer top value to alter the overflow frequency */
tc_set_top_value(tc_module,
system_gclk_gen_get_hz(GCLK_GENERATOR_0) / sample_rate);
tc_enable(tc_module);
}
/**
* \brief Configures the event system to link the sample timer to the DAC.
*
* Configures the event system, linking the TC module used for the audio sample
* rate timing to the DAC, so that a new conversion is triggered each time the
* DAC receives an event from the timer.
*/
static void configure_events(struct events_resource *event)
{
struct events_config config;
events_get_config_defaults(&config);
config.generator = EVSYS_ID_GEN_TC3_OVF;
config.path = EVENTS_PATH_ASYNCHRONOUS;
events_allocate(event, &config);
events_attach_user(event, EVSYS_ID_USER_DAC_START);
}
/**
* \brief Main application routine
*/
int main(void)
{
struct dac_module dac_module;
struct tc_module tc_module;
struct events_resource event;
/* Initialize all the system clocks, pm, gclk... */
system_init();
/* Enable the internal bandgap to use as reference to the DAC */
system_voltage_reference_enable(SYSTEM_VOLTAGE_REFERENCE_BANDGAP);
/* Module configuration */
configure_tc(&tc_module);
configure_dac(&dac_module);
configure_events(&event);
/* Start the sample trigger timer */
tc_start_counter(&tc_module);
while (true) {
while (port_pin_get_input_level(SW0_PIN) == SW0_INACTIVE) {
/* Wait for the button to be pressed */
}
port_pin_toggle_output_level(LED0_PIN);
for (uint32_t i = 0; i < number_of_samples; i++) {
dac_chan_write(&dac_module, DAC_CHANNEL_0, wav_samples[i]);
while (!(DAC->INTFLAG.reg & DAC_INTFLAG_EMPTY)) {
/* Wait for data buffer to be empty */
}
}
while (port_pin_get_input_level(SW0_PIN) == SW0_ACTIVE) {
/* Wait for the button to be depressed */
}
}
}
/**
* \brief Initialize the TC3 & RTC for unit test
*
* Initializes the RTC module and TC3 module which are used as
* event generator and event user respectively.
*/
static void test_event_gen_user_init(void)
{
enum status_code status;
init_success = true;
/* Timer configuration (Event User) */
struct tc_config config_tc;
tc_get_config_defaults(&config_tc);
config_tc.counter_16_bit.compare_capture_channel[0]
= (0xFFFF / 4);
/* Initialize the TC3 */
status = tc_init(&tc_inst, TC3, &config_tc);
if (status != STATUS_OK) {
init_success = false;
}
struct tc_events events_tc;
events_tc.on_event_perform_action = true;
events_tc.event_action = TC_EVENT_ACTION_START;
tc_enable_events(&tc_inst, &events_tc);
/* Enable the TC3 */
tc_enable(&tc_inst);
/* RTC configuration (Event Generator) */
struct rtc_count_config config_rtc_count;
struct rtc_count_events config_rtc_event
= { .generate_event_on_overflow = true };
/* Initialize the RTC module */
rtc_count_get_config_defaults(&config_rtc_count);
config_rtc_count.prescaler = RTC_COUNT_PRESCALER_DIV_1;
config_rtc_count.mode = RTC_COUNT_MODE_16BIT;
#ifdef FEATURE_RTC_CONTINUOUSLY_UPDATED
config_rtc_count.continuously_update = true;
#endif
config_rtc_count.compare_values[0] = 50;
status = rtc_count_init(&rtc_inst, RTC, &config_rtc_count);
if (status != STATUS_OK) {
init_success = false;
}
/* Enable RTC events */
config_rtc_event.generate_event_on_overflow = true;
rtc_count_enable_events(&rtc_inst, &config_rtc_event);
}
/**
* \internal
* \brief Setup Function: Synchronous event propagation.
*
* This function initializes the event system channel 0 and the RTC
* module (event generator) to be in the same clock domain for
* synchronous event propagation.
*
* \param test Current test case.
*/
static void setup_synchronous_event_test(const struct test_case *test)
{
struct events_config events_conf;
/* Get default event channel configuration */
events_get_config_defaults(&events_conf);
events_conf.clock_source = GCLK_GENERATOR_2;
events_conf.edge_detect = EVENTS_EDGE_DETECT_RISING;
events_conf.path = EVENTS_PATH_SYNCHRONOUS;
events_conf.generator = TEST_EVENT_GEN;
events_allocate(&events, &events_conf);
events_attach_user(&events, TEST_EVENT_USER);
}
/**
* \internal
* \brief Test for event system in synchronous mode.
*
* This test waits for event channel and user to be ready and then
* starts the RTC to generate overflow event. It waits until the timer
* is started. If the timer starts running then it can be assumed that
* the event has been propagated properly.
*
* \param test Current test case.
*/
static void run_synchronous_event_test(const struct test_case *test)
{
uint32_t timeout_cycles = 1000;
/* Skip test if initialization failed */
test_assert_true(test, init_success,
"Skipping test due to failed initialization");
/* Check whether event user is ready */
do {
timeout_cycles--;
if (events_is_users_ready(&events)) {
break;
}
} while (timeout_cycles > 0);
test_assert_true(test, timeout_cycles > 0,
"Timeout error: Event user not ready");
/* Check whether event channel is ready */
timeout_cycles = 1000;
do {
timeout_cycles--;
if (!events_is_busy(&events)) {
break;
}
} while (timeout_cycles > 0);
test_assert_true(test, timeout_cycles > 0,
"Timeout error: Event channel not ready");
/* Event action test */
rtc_count_enable(&rtc_inst);
rtc_count_set_period(&rtc_inst, 100);
timeout_cycles = 10000;
do {
timeout_cycles--;
if (tc_get_count_value(&tc_inst)) {
break;
}
} while (timeout_cycles > 0);
test_assert_true(test, timeout_cycles > 0,
"Error: Timeout in event reception/action");
}
/* Timer 0 Initialization */
void timer_init(void)
{
struct tc_config conf_tc;
struct tc_events conf_tc_events = {.generate_event_on_compare_channel[0] = 1};
tc_get_config_defaults(&conf_tc);
conf_tc.clock_source = GCLK_GENERATOR_0;
conf_tc.wave_generation = TC_WAVE_GENERATION_MATCH_FREQ;
conf_tc.counter_16_bit.compare_capture_channel[0] = 0xFFFF;
tc_init(&tc_inst, TC0, &conf_tc);
tc_enable_events(&tc_inst, &conf_tc_events);
tc_enable(&tc_inst);
tc_stop_counter(&tc_inst);
/* Enable TC0 match/capture channel 0 interrupt */
TC0->COUNT16.INTENSET.bit.MC0 = 1;
/* Enable TC0 module interrupt */
NVIC_EnableIRQ(TC0_IRQn);
}
/* DAC Initialization */
void dac_initialize(void)
{
struct dac_config conf_dac;
struct dac_events conf_dac_events = {.on_event_start_conversion = 1};
dac_get_config_defaults(&conf_dac);
conf_dac.clock_source = GCLK_GENERATOR_3;
conf_dac.reference = DAC_REFERENCE_INT1V;
dac_init(&dac_inst, DAC, &conf_dac);
dac_enable_events(&dac_inst, &conf_dac_events);
dac_enable(&dac_inst);
}
/* Event System Initialization */
void evsys_init(void)
{
struct events_resource conf_event_resource;
struct events_config conf_event;
events_get_config_defaults(&conf_event);
conf_event.edge_detect = EVENTS_EDGE_DETECT_NONE;
conf_event.path = EVENTS_PATH_ASYNCHRONOUS;
conf_event.generator = EVSYS_ID_GEN_TC0_MCX_0;
events_allocate(&conf_event_resource, &conf_event);
events_attach_user(&conf_event_resource, EVSYS_ID_USER_DAC_START);
}
/* Initialize the selected waveform buffer with output data */
void buffer_init(void)
{
#if WAVE_MODE==SINE_WAVE
for (i = 0; i < DEGREES_PER_CYCLE; i++) {
sine_wave_buf[i] = (uint16_t)(500 + (500*sin((double)i*DEGREE)));
}
#elif WAVE_MODE==SAW_TOOTH_WAVE
for (i = 0; i < 256; i++) {
sawtooth_wave_buf[i] = i*4;
}
#elif WAVE_MODE==TRIANGLE_WAVE
for (i = 0; i < 128; i++) {
triangle_wave_buf[i] = i*8;
}
for (i = 128; i < 256; i++) {
triangle_wave_buf[i] = 1023 - (i*8);
}
#endif
}
/* Main function */
int main(void)
{
system_init();
timer_init();
dac_initialize();
evsys_init();
buffer_init();
/* Set the TC0 compare value corresponding to specified frequency */
#if WAVE_MODE==SINE_WAVE
tc_set_compare_value(&tc_inst, 0, \
system_gclk_gen_get_hz(GCLK_GENERATOR_0)/(FREQUENCY*360));
#else
tc_set_compare_value(&tc_inst, 0, \
system_gclk_gen_get_hz(GCLK_GENERATOR_0)/(FREQUENCY*256));
#endif
/* Start TC0 timer */
tc_start_counter(&tc_inst);
/* Enable global interrupt */
system_interrupt_enable_global();
while (true) {
}
}
/**
* \internal
* \brief 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.
*
* \param test Current test case.
*/
static void run_16bit_capture_and_compare_test(const struct test_case *test)
{
test_assert_true(test,
tc_init_success == true,
"TC initialization failed, skipping test");
test_assert_true(test,
callback_function_entered == 1,
"The callback test has failed, skipping test");
/* Configure 16-bit TC module for PWM generation */
tc_reset(&tc_test0_module);
tc_get_config_defaults(&tc_test0_config);
tc_test0_config.wave_generation = TC_WAVE_GENERATION_MATCH_PWM;
tc_test0_config.counter_16_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_0] = 0x03FF;
tc_test0_config.counter_16_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_1] = 0x01FF;
/* Calculate the theoretical PWM frequency & duty */
uint32_t frequency_output, duty_output;
frequency_output = system_clock_source_get_hz(SYSTEM_CLOCK_SOURCE_OSC8M)/ (0x03FF+1);
/* This value is depend on the WaveGeneration Mode */
duty_output = (uint32_t)(tc_test0_config.counter_16_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_1]) * 100 \
/ tc_test0_config.counter_16_bit.compare_capture_channel[TC_COMPARE_CAPTURE_CHANNEL_0];
tc_test0_config.pwm_channel[TC_COMPARE_CAPTURE_CHANNEL_1].enabled = true;
tc_test0_config.pwm_channel[TC_COMPARE_CAPTURE_CHANNEL_1].pin_out = CONF_TEST_PIN_OUT;
tc_test0_config.pwm_channel[TC_COMPARE_CAPTURE_CHANNEL_1].pin_mux = CONF_TEST_PIN_MUX;
tc_init(&tc_test0_module, CONF_TEST_TC0, &tc_test0_config);
tc_register_callback(&tc_test0_module, tc_callback_function, TC_CALLBACK_CC_CHANNEL0);
tc_enable_callback(&tc_test0_module, TC_CALLBACK_CC_CHANNEL0);
/* Configure 16-bit TC module for capture */
tc_reset(&tc_test1_module);
tc_get_config_defaults(&tc_test1_config);
tc_test1_config.clock_prescaler = TC_CLOCK_PRESCALER_DIV1;
tc_test1_config.enable_capture_on_channel[CONF_CAPTURE_CHAN_0] = true;
tc_test1_config.enable_capture_on_channel[CONF_CAPTURE_CHAN_1] = true;
tc_init(&tc_test1_module, CONF_TEST_TC1, &tc_test1_config);
struct tc_events tc_events = { .on_event_perform_action = true,
.event_action = TC_EVENT_ACTION_PPW,};
tc_enable_events(&tc_test1_module, &tc_events);
/* Configure external interrupt controller */
struct extint_chan_conf extint_chan_config;
extint_chan_config.gpio_pin = CONF_EIC_PIN;
extint_chan_config.gpio_pin_mux = CONF_EIC_MUX;
extint_chan_config.gpio_pin_pull = EXTINT_PULL_UP;
extint_chan_config.wake_if_sleeping = false;
extint_chan_config.filter_input_signal = false;
extint_chan_config.detection_criteria = EXTINT_DETECT_HIGH;
extint_chan_set_config(0, &extint_chan_config);
/* Configure external interrupt module to be event generator */
struct extint_events extint_event_conf;
extint_event_conf.generate_event_on_detect[0] = true;
extint_enable_events(&extint_event_conf);
/* Configure event system */
struct events_resource event_res;
/* Configure channel */
struct events_config config;
events_get_config_defaults(&config);
config.generator = CONF_EVENT_GENERATOR_ID;
config.edge_detect = EVENTS_EDGE_DETECT_NONE;
config.path = EVENTS_PATH_ASYNCHRONOUS;
events_allocate(&event_res, &config);
/* Configure user */
events_attach_user(&event_res, CONF_EVENT_USED_ID);
/* Enable TC modules */
tc_enable(&tc_test1_module);
tc_enable(&tc_test0_module);
uint16_t period_after_capture = 0;
uint16_t pulse_width_after_capture = 0;
uint32_t capture_frequency = 0;
uint32_t capture_duty = 0;
while (callback_function_entered < 4) {
period_after_capture = tc_get_capture_value(&tc_test1_module,
TC_COMPARE_CAPTURE_CHANNEL_0);
pulse_width_after_capture = tc_get_capture_value(&tc_test1_module,
TC_COMPARE_CAPTURE_CHANNEL_1);
}
if(period_after_capture != 0) {
capture_frequency = system_clock_source_get_hz(SYSTEM_CLOCK_SOURCE_OSC8M)/ period_after_capture;
capture_duty = (uint32_t)(pulse_width_after_capture) * 100 / period_after_capture;
}
test_assert_true(test,
(capture_frequency <= (frequency_output * (100 + CONF_TEST_TOLERANCE) / 100)) && \
(capture_frequency >= (frequency_output * (100 - CONF_TEST_TOLERANCE) / 100)) && \
(capture_duty <= (duty_output * (100 + CONF_TEST_TOLERANCE) / 100)) && \
(capture_duty >= (duty_output * (100 - CONF_TEST_TOLERANCE) / 100)) \
,"The result of Capture is wrong, captured frequency: %ldHz, captured duty: %ld%%",
capture_frequency,
capture_duty
);
}
/**
* \brief 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.
*/
static void cdc_uart_init(void)
{
struct usart_config usart_conf;
/* Configure USART for unit test output */
usart_get_config_defaults(&usart_conf);
usart_conf.mux_setting = CONF_STDIO_MUX_SETTING;
usart_conf.pinmux_pad0 = CONF_STDIO_PINMUX_PAD0;
usart_conf.pinmux_pad1 = CONF_STDIO_PINMUX_PAD1;
usart_conf.pinmux_pad2 = CONF_STDIO_PINMUX_PAD2;
usart_conf.pinmux_pad3 = CONF_STDIO_PINMUX_PAD3;
usart_conf.baudrate = CONF_STDIO_BAUDRATE;
stdio_serial_init(&cdc_uart_module, CONF_STDIO_USART, &usart_conf);
usart_enable(&cdc_uart_module);
}
/**
* \brief Run TC unit tests
*
* Initializes the system and serial output, then sets up the TC unit test
* suite and runs it.
*/
int main(void)
{
system_init();
cdc_uart_init();
/* Define Test Cases */
DEFINE_TEST_CASE(init_test, NULL,
run_init_test, NULL,
"Initialize tc_xmodules");
DEFINE_TEST_CASE(basic_functionality_test, NULL,
run_basic_functionality_test, NULL,
"test start stop and getters and setters");
DEFINE_TEST_CASE(callback_test, NULL,
run_callback_test, NULL,
"test callback API");
DEFINE_TEST_CASE(reset_32bit_master_test, NULL,
run_reset_32bit_master_test, NULL,
"Setup, reset and reinitialize TC modules of a 32-bit TC");
DEFINE_TEST_CASE(capture_and_compare_test, NULL,
run_16bit_capture_and_compare_test, NULL,
"Test capture and compare");
/* Put test case addresses in an array */
DEFINE_TEST_ARRAY(tc_tests) = {
&init_test,
&basic_functionality_test,
&callback_test,
&reset_32bit_master_test,
&capture_and_compare_test,
};
/* Define the test suite */
DEFINE_TEST_SUITE(tc_suite, tc_tests,
"SAM TC driver test suite");
/* Run all tests in the suite*/
test_suite_run(&tc_suite);
tc_reset(&tc_test0_module);
tc_reset(&tc_test1_module);
while (true) {
/* Intentionally left empty */
}
}