<alp/wdt.h> — Watchdog Timer

System-watchdog control. A missed feed reboots the SoC.

Header

#include <alp/wdt.h>

Quick example

alp_wdt_t *wdt = alp_wdt_open(&(alp_wdt_config_t){
    .wdt_id     = ALP_E1M_WDT0,
    .timeout_ms = 5000,
    .on_timeout = ALP_WDT_RESET_SOC,
});

while (running) {
    do_work();
    alp_wdt_feed(wdt);    // every iteration; must be < 5 s
}

alp_wdt_open() arms the timer immediately on return — feed before timeout_ms elapses or the configured on_timeout action fires.

:::note v0.9.0 signature change The watchdog id moved into alp_wdt_config_t as wdt_id (ALP_E1M_WDT0..ALP_E1M_WDT1), so alp_wdt_open is now a single-arg config-taking open matching every other peripheral. There is no 2-arg compatibility shim. :::

See also

• Examples: wdt-feed