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Prevent stuck M109/M190 when target is changed

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This commit is contained in:
Scott Lahteine 2016-04-30 16:29:02 -07:00
parent eeef571be2
commit 6d3e4e1f8f
1 changed files with 36 additions and 18 deletions
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54
Marlin/Marlin_main.cpp
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@ -4463,15 +4463,6 @@ inline void gcode_M109() {
if (code_seen('B')) autotemp_max = code_value(); if (code_seen('B')) autotemp_max = code_value();
#endif #endif
bool wants_to_cool = isCoolingHotend(target_extruder);
// Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
if (no_wait_for_cooling && wants_to_cool) return;
// Prevents a wait-forever situation if R is misused i.e. M109 R0
// Try to calculate a ballpark safe margin by halving EXTRUDE_MINTEMP
if (wants_to_cool && degTargetHotend(target_extruder) < (EXTRUDE_MINTEMP)/2) return;
#if TEMP_RESIDENCY_TIME > 0 #if TEMP_RESIDENCY_TIME > 0
millis_t residency_start_ms = 0; millis_t residency_start_ms = 0;
// Loop until the temperature has stabilized // Loop until the temperature has stabilized
@ -4481,11 +4472,15 @@ inline void gcode_M109() {
#define TEMP_CONDITIONS (wants_to_cool ? isCoolingHotend(target_extruder) : isHeatingHotend(target_extruder)) #define TEMP_CONDITIONS (wants_to_cool ? isCoolingHotend(target_extruder) : isHeatingHotend(target_extruder))
#endif //TEMP_RESIDENCY_TIME > 0 #endif //TEMP_RESIDENCY_TIME > 0
KEEPALIVE_STATE(NOT_BUSY); float theTarget = -1;
bool wants_to_cool;
cancel_heatup = false; cancel_heatup = false;
millis_t now, next_temp_ms = 0; millis_t now, next_temp_ms = 0;
KEEPALIVE_STATE(NOT_BUSY);
do { do {
now = millis(); now = millis();
if (ELAPSED(now, next_temp_ms)) { //Print temp & remaining time every 1s while waiting if (ELAPSED(now, next_temp_ms)) { //Print temp & remaining time every 1s while waiting
next_temp_ms = now + 1000UL; next_temp_ms = now + 1000UL;
@ -4506,12 +4501,25 @@ inline void gcode_M109() {
#endif #endif
} }
// Target temperature might be changed during the loop
if (theTarget != degTargetHotend(target_extruder)) {
theTarget = degTargetHotend(target_extruder);
wants_to_cool = isCoolingHotend(target_extruder);
// Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
if (no_wait_for_cooling && wants_to_cool) break;
// Prevent a wait-forever situation if R is misused i.e. M109 R0
// Try to calculate a ballpark safe margin by halving EXTRUDE_MINTEMP
if (wants_to_cool && theTarget < (EXTRUDE_MINTEMP)/2) break;
}
idle(); idle();
refresh_cmd_timeout(); // to prevent stepper_inactive_time from running out refresh_cmd_timeout(); // to prevent stepper_inactive_time from running out
#if TEMP_RESIDENCY_TIME > 0 #if TEMP_RESIDENCY_TIME > 0
float temp_diff = fabs(degTargetHotend(target_extruder) - degHotend(target_extruder)); float temp_diff = fabs(theTarget - degHotend(target_extruder));
if (!residency_start_ms) { if (!residency_start_ms) {
// Start the TEMP_RESIDENCY_TIME timer when we reach target temp for the first time. // Start the TEMP_RESIDENCY_TIME timer when we reach target temp for the first time.
@ -4543,11 +4551,6 @@ inline void gcode_M109() {
bool no_wait_for_cooling = code_seen('S'); bool no_wait_for_cooling = code_seen('S');
if (no_wait_for_cooling || code_seen('R')) setTargetBed(code_value()); if (no_wait_for_cooling || code_seen('R')) setTargetBed(code_value());
bool wants_to_cool = isCoolingBed();
// Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
if (no_wait_for_cooling && wants_to_cool) return;
#if TEMP_BED_RESIDENCY_TIME > 0 #if TEMP_BED_RESIDENCY_TIME > 0
millis_t residency_start_ms = 0; millis_t residency_start_ms = 0;
// Loop until the temperature has stabilized // Loop until the temperature has stabilized
@ -4557,11 +4560,13 @@ inline void gcode_M109() {
#define TEMP_BED_CONDITIONS (wants_to_cool ? isCoolingBed() : isHeatingBed()) #define TEMP_BED_CONDITIONS (wants_to_cool ? isCoolingBed() : isHeatingBed())
#endif //TEMP_BED_RESIDENCY_TIME > 0 #endif //TEMP_BED_RESIDENCY_TIME > 0
float theTarget = -1;
bool wants_to_cool;
cancel_heatup = false; cancel_heatup = false;
millis_t now, next_temp_ms = 0; millis_t now, next_temp_ms = 0;
// Wait for temperature to come close enough
KEEPALIVE_STATE(NOT_BUSY); KEEPALIVE_STATE(NOT_BUSY);
do { do {
now = millis(); now = millis();
if (ELAPSED(now, next_temp_ms)) { //Print Temp Reading every 1 second while heating up. if (ELAPSED(now, next_temp_ms)) { //Print Temp Reading every 1 second while heating up.
@ -4581,6 +4586,19 @@ inline void gcode_M109() {
#endif #endif
} }
// Target temperature might be changed during the loop
if (theTarget != degTargetBed()) {
theTarget = degTargetBed();
wants_to_cool = isCoolingBed();
// Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
if (no_wait_for_cooling && wants_to_cool) break;
// Prevent a wait-forever situation if R is misused i.e. M190 R0
// Simply don't wait for cooling below 30C
if (wants_to_cool && theTarget < (EXTRUDE_MINTEMP)/2) break;
}
idle(); idle();
refresh_cmd_timeout(); // to prevent stepper_inactive_time from running out refresh_cmd_timeout(); // to prevent stepper_inactive_time from running out