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Clean up set_heaters_for_bltouch

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This commit is contained in:
Scott Lahteine 2017-04-28 18:22:31 -05:00
parent 7db805930a
commit 1a111180de
1 changed files with 40 additions and 38 deletions
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78
Marlin/Marlin_main.cpp
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@ -2060,57 +2060,58 @@ static void clean_up_after_endstop_or_probe_move() {
#endif
#if ENABLED(BLTOUCH)
void bltouch_command(int angle) {
servo[Z_ENDSTOP_SERVO_NR].move(angle); // Give the BL-Touch the command and wait
safe_delay(BLTOUCH_DELAY);
}
//
// The BL-Touch probes have a HAL effect sensor. The high currents switching
// on and off cause big magnetic fields that can affect the repeatability of the
// sensor. So, for BL-Touch probes, we turn off the heaters during the actual probe.
// And then we quickly turn them back on after we have sampled the point
//
#if ENABLED(BLTOUCH_HEATERS_OFF)
void turn_heaters_on_or_off_for_bltouch(const bool deploy) {
static int8_t bltouch_recursion_cnt=0;
static millis_t last_emi_protection=0;
static float temps_at_entry[HOTENDS];
#if HAS_TEMP_BED
static float bed_temp_at_entry;
#endif
/**
* BLTouch probes have a Hall effect sensor. The high currents switching
* on and off cause a magnetic field that can affect the repeatability of the
* sensor. So for BLTouch probes, heaters are turned off during the probe,
* then quickly turned back on after the point is sampled.
*/
#if ENABLED(BLTOUCH_HEATERS_OFF)
if (deploy && bltouch_recursion_cnt>0) // if already in the correct state, we don't need to do anything
return; // with the heaters.
if (!deploy && bltouch_recursion_cnt<1) // if already in the correct state, we don't need to do anything
return; // with the heaters.
if (deploy) {
bltouch_recursion_cnt++;
last_emi_protection = millis();
HOTEND_LOOP() temps_at_entry[e] = thermalManager.degTargetHotend(e); // save the current target temperatures
HOTEND_LOOP() thermalManager.setTargetHotend(0, e); // so we know what to restore them to.
bool set_heaters_for_bltouch(const bool deploy) {
static bool heaters_were_disabled = false;
static millis_t next_emi_protection;
static float temps_at_entry[HOTENDS];
#if HAS_TEMP_BED
bed_temp_at_entry = thermalManager.degTargetBed();
thermalManager.setTargetBed(0.0);
static float bed_temp_at_entry;
#endif
}
else {
bltouch_recursion_cnt--; // the heaters are only turned back on
if (bltouch_recursion_cnt==0 && ((last_emi_protection+20000L)>millis())) { // if everything is perfect. It is expected
HOTEND_LOOP() thermalManager.setTargetHotend(temps_at_entry[e], e); // that the bltouch_recursion_cnt is zero and
#if HAS_TEMP_BED // that the heaters were shut off less than
thermalManager.setTargetBed(bed_temp_at_entry); // 20 seconds ago
// If called out of order or far apart something is seriously wrong
if (deploy == heaters_were_disabled
|| (next_emi_protection && ELAPSED(millis(), next_emi_protection)))
kill(PSTR(MSG_KILLED));
if (deploy) {
next_emi_protection = millis() + 20 * 1000UL;
HOTEND_LOOP() {
temps_at_entry[e] = thermalManager.degTargetHotend(e);
thermalManager.setTargetHotend(0, e);
}
#if HAS_TEMP_BED
bed_temp_at_entry = thermalManager.degTargetBed();
thermalManager.setTargetBed(0);
#endif
}
else {
HOTEND_LOOP() thermalManager.setTargetHotend(temps_at_entry[e], e);
#if HAS_TEMP_BED
thermalManager.setTargetBed(bed_temp_at_entry);
#endif
}
}
}
#endif
#endif // BLTOUCH_HEATERS_OFF
void set_bltouch_deployed(const bool deploy) {
#if ENABLED(BLTOUCH_HEATERS_OFF)
turn_heaters_on_or_off_for_bltouch(deploy);
set_heaters_for_bltouch(deploy);
#endif
if (deploy && TEST_BLTOUCH()) { // If BL-Touch says it's triggered
bltouch_command(BLTOUCH_RESET); // try to reset it.
@ -2134,7 +2135,8 @@ static void clean_up_after_endstop_or_probe_move() {
}
#endif
}
#endif
#endif // BLTOUCH
// returns false for ok and true for failure
bool set_probe_deployed(bool deploy) {
@ -2147,7 +2149,7 @@ static void clean_up_after_endstop_or_probe_move() {
#endif
#if ENABLED(BLTOUCH) && ENABLED(BLTOUCH_HEATERS_OFF)
turn_heaters_on_or_off_for_bltouch(deploy);
set_heaters_for_bltouch(deploy);
#endif
if (endstops.z_probe_enabled == deploy) return false;