27 lines
620 B
C
27 lines
620 B
C
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typedef struct simple_watchdog_state_t {
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uint32_t fault;
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uint32_t last_ts;
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uint32_t threshold;
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} simple_watchdog_state_t;
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simple_watchdog_state_t wd_state;
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void simple_watchdog_kick(void) {
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uint32_t ts = microsecond_timer_get();
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uint32_t et = get_ts_elapsed(ts, wd_state.last_ts);
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if (et > wd_state.threshold) {
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print("WD timeout 0x"); puth(et); print("\n");
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fault_occurred(wd_state.fault);
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}
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wd_state.last_ts = ts;
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}
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void simple_watchdog_init(uint32_t fault, uint32_t threshold) {
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wd_state.fault = fault;
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wd_state.threshold = threshold;
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wd_state.last_ts = microsecond_timer_get();
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}
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