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Implementation of M190 bed temp hysteresis

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gralco
2016-04-12 08:40:57 -06:00
parent 0439483bc8
commit 178aeb79c8
2 changed files with 46 additions and 5 deletions
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45
Marlin/Marlin_main.cpp
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@@ -4389,20 +4389,57 @@ inline void gcode_M109() {
// Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
if (no_wait_for_cooling && wants_to_cool) return;
#ifdef TEMP_BED_RESIDENCY_TIME
millis_t residency_start_ms = 0;
// Loop until the temperature has stabilized
#define TEMP_BED_CONDITIONS (!residency_start_ms || PENDING(now, residency_start_ms + (TEMP_BED_RESIDENCY_TIME) * 1000UL))
#else
// Loop until the temperature is very close target
#define TEMP_BED_CONDITIONS (wants_to_cool ? isCoolingBed() : isHeatingBed())
#endif //TEMP_BED_RESIDENCY_TIME
cancel_heatup = false;
millis_t next_temp_ms = 0;
millis_t now, next_temp_ms = 0;
// Wait for temperature to come close enough
do {
millis_t now = millis();
now = millis();
if (ELAPSED(now, next_temp_ms)) { //Print Temp Reading every 1 second while heating up.
next_temp_ms = now + 1000UL;
print_heaterstates();
SERIAL_EOL;
#ifdef TEMP_BED_RESIDENCY_TIME
SERIAL_PROTOCOLPGM(" W:");
if (residency_start_ms) {
long rem = (((TEMP_BED_RESIDENCY_TIME) * 1000UL) - (now - residency_start_ms)) / 1000UL;
SERIAL_PROTOCOLLN(rem);
}
else {
SERIAL_PROTOCOLLNPGM("?");
}
#else
SERIAL_EOL;
#endif
}
idle();
refresh_cmd_timeout(); // to prevent stepper_inactive_time from running out
} while (!cancel_heatup && (wants_to_cool ? isCoolingBed() : isHeatingBed()));
#ifdef TEMP_BED_RESIDENCY_TIME
float temp_diff = fabs(degBed() - degTargetBed());
if (!residency_start_ms) {
// Start the TEMP_BED_RESIDENCY_TIME timer when we reach target temp for the first time.
if (temp_diff < TEMP_BED_WINDOW) residency_start_ms = millis();
}
else if (temp_diff > TEMP_BED_HYSTERESIS) {
// Restart the timer whenever the temperature falls outside the hysteresis.
residency_start_ms = millis();
}
#endif //TEMP_BED_RESIDENCY_TIME
} while (!cancel_heatup && TEMP_BED_CONDITIONS);
LCD_MESSAGEPGM(MSG_BED_DONE);
}