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Considering the thread solved and closed as of . LDO replacement solves RESET on power up of WiFi radio and secondary, less frequent RESET issue solved by moving ISR to SRAM for execution. |
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Running boot experiment without sensor connected now. msTotal and samples will both be zero and this case will never happen.
After running 1000 boot cycles without incident, I’ve proven to myself that the secondary RESET issue was caused by software.
Now at 1800 boot count with no issues. Hardware is stable.
Secondary, intermittent reset issue seems to be solved by properly marking ISR routines to be copied to SRAM.
IRAM_ATTR in function definition informs program to copy and execute code from SRAM.
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//=======================================================
// windTick: ISR to capture wind speed relay closure
//=======================================================
void IRAM_ATTR windTick(void)
{
timeSinceLastTick = millis() - lastTick;
//software debounce attempt
//record up to 10 ticks from anemometer
if (timeSinceLastTick > 10 && count < 10)
{
lastTick = millis();
tickTime[count] = timeSinceLastTick;
count++;
}
} |