/**
* \brief Run WDT unit tests
*
* Initializes the system and serial output, then sets up the
* WDT unit test suite and runs it.
*/
int main(void)
{
/* Check whether reset cause was Watchdog */
#if (SAML21)
wdr_flag = (system_get_reset_cause() & RSTC_RCAUSE_WDT);
#else
wdr_flag = (system_get_reset_cause() & PM_RCAUSE_WDT);
#endif
system_init();
/* Reset the Watchdog count */
wdt_reset_count();
struct wdt_conf config_wdt;
/* Get the Watchdog default configuration */
wdt_get_config_defaults(&config_wdt);
if(wdr_flag) {
config_wdt.enable = false;
}
/* Set the desired configuration */
#if !(SAML21)
config_wdt.clock_source = CONF_WDT_GCLK_GEN;
#endif
config_wdt.timeout_period = CONF_WDT_TIMEOUT_PERIOD;
config_wdt.early_warning_period = CONF_WDT_EARLY_WARNING_PERIOD;
wdt_set_config(&config_wdt);
cdc_uart_init();
DEFINE_TEST_CASE(wdt_early_warning_test, NULL,
run_wdt_early_warning_test, wait_for_wdt_reset,
"WDT Early Warning Test");
DEFINE_TEST_CASE(reset_cause_test, NULL,
run_reset_cause_test, NULL,
"Confirming Watchdog Reset");
/* Put test case addresses in an array */
DEFINE_TEST_ARRAY(wdt_tests) = {
&wdt_early_warning_test,
&reset_cause_test,
};
/* Define the test suite */
DEFINE_TEST_SUITE(wdt_suite, wdt_tests,
"SAM WDT driver test suite");
/* Run all tests in the suite*/
test_suite_run(&wdt_suite);
while (1) {
/* Intentionally left empty */
}
}
int main(void)
{
system_init();
//! [setup_init]
configure_wdt();
//! [setup_init]
//! [main]
//! [main_1]
enum system_reset_cause reset_cause = system_get_reset_cause();
//! [main_1]
//! [main_2]
if (reset_cause == SYSTEM_RESET_CAUSE_WDT) {
port_pin_set_output_level(LED_0_PIN, LED_0_INACTIVE);
}
else {
port_pin_set_output_level(LED_0_PIN, LED_0_ACTIVE);
}
//! [main_2]
//! [main_3]
while (true) {
//! [main_3]
//! [main_4]
if (port_pin_get_input_level(BUTTON_0_PIN) == false) {
//! [main_4]
//! [main_5]
port_pin_set_output_level(LED_0_PIN, LED_0_ACTIVE);
wdt_reset_count();
//! [main_5]
}
}
//! [main]
}
/* loads stored state from persistent storage and sets up correct boot parameters */
void configure_state_from_reboot(void) {
// send first read command
read_state_from_storage();
#ifdef OVERRIDE_INIT_SAT_STATE
current_sat_state = OVERRIDE_INIT_SAT_STATE;
current_task_states = OVERRIDE_INIT_TASK_STATES;
#else
// based on satellite state, set initial state
// (it will actually be set as tasks come online)
// (this is done differently than during normal satellite operation,
// because we're still initializing and tasks can't be simply suspended
// right now (RTOS isn't even running yet). So, we configure what
// needs to be done and configure tasks as they boot up and report
// to the function below that they're ready)
sat_state_t state_at_reboot = cache_get_sat_state();
if (state_at_reboot == INITIAL
|| state_at_reboot == ANTENNA_DEPLOY
|| state_at_reboot == HELLO_WORLD) {
current_sat_state = INITIAL;
// the distinction between these two is related to T_STATE_ANY;
// we use boot_task_states to explicitly set state for all tasks on boot
// (so at the end of this it won't contain any T_STATE_ANYs),
// while current_task_states signifies the current abstract state
current_task_states = INITIAL_TASK_STATES;
} else {
current_sat_state = IDLE_NO_FLASH;
current_task_states = IDLE_NO_FLASH_TASK_STATES;
}
#endif
// always start antenna deploy task
current_task_states.states[ANTENNA_DEPLOY_TASK] = true;
// add any errors we can from MRAM cache
// (NOTE; no one should've logged any yet, or else they may be overwritten!)
populate_error_stacks(&error_equistack);
// if the satellite restarted because of the watchdog, log that as an error so we know
enum system_reset_cause cause = system_get_reset_cause();
if (cause == SYSTEM_RESET_CAUSE_WDT) {
log_error(ELOC_WATCHDOG, ECODE_WATCHDOG_DID_KICK, true);
} else if (cause == SYSTEM_RESET_CAUSE_SOFTWARE) {
log_error(ELOC_WATCHDOG, ECODE_SOFTWARE_RESET, false); // mostly for debug; hopefully no aliens are hacking us
} else if (cause == SYSTEM_RESET_CAUSE_EXTERNAL_RESET) {
log_error(ELOC_WATCHDOG, ECODE_SAT_RESET, true);
}
// if we had to rewrite program memory due to corruption, log a low-pri error
if (cache_get_prog_mem_rewritten()) {
log_error(ELOC_BOOTLOADER, ECODE_REWROTE_PROG_MEM, false);
update_sat_event_history(0, 0, 0, 0, 0, 0, 1); // rare enough that the double-write here is fine
}
// note we've rebooted
increment_reboot_count();
// initial hardware settings (last because they have delays)
setRadioState(false, false); // turn radio off and don't confirm (won't confirm going off)
}
