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Check probes only when deployed

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Aim: Test probes in update_endstops only when activated

Changes:
Configurations
 Add define for FIX_MOUNTED_PROBE to handle the situation where formerly ENDSTOPS_ONLY_FOR_HOMING had to be set, or lowering the nozzle below Z_PROBE_OFFSET_FROM_EXTRUDER could give an "endstop hit" message.
 Add define for Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN to indicate a common situation, that we have a probe but it is connected to an endstop pin
 Add some comments
 Shift some entries to have related things together.

Conditionals.h
 We have a probe (HAS_Z_MIN_PROBE) if one of the pins is defined AND one of the probes is defined.

SanityCheck.h
 Add some tests if the probe is connected and if we have defined a probe.

stepper.cpp
 Changes to test the probe only when it is deployed (z_probe_is_active).
 Test update_endstops() when the probe is deployed.

MarlinMain.cpp
 a. set and reset z_probe_is_active in deploy_z_probe(), stow_z_probe() and dock_sled()
 b. set and reset z_probe_is_active in the case a z-servo is moved to a defined position. The only remaining unhandled servo move is in M280 where we do not end in a defined position. If you want to handle a probe use M401/402
 c. skip deploying/stowing when already deployed/stowed in the dedicated deploy/stow functions.
 d. Handle the new FIX_MOUNTED_PROBE in parallel to a servo driven probe/endstop.

 To do: In another PR. handle all probes in deploy/stow_z_probe.
 Sort out SERVO_LEVELING vs. HAS_SERVO_ENDSTOPS.
This commit is contained in:
AnHardt
2015-12-03 14:19:29 +01:00
committed by Scott Lahteine
parent 4634feaeab
commit 3f45a1acf9
23 changed files with 1198 additions and 641 deletions
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28
Marlin/stepper.cpp
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@ -39,6 +39,9 @@
//===========================================================================
block_t* current_block; // A pointer to the block currently being traced
#if ENABLED(HAS_Z_MIN_PROBE)
volatile bool z_probe_is_active = false;
#endif
//===========================================================================
//============================= private variables ===========================
@ -425,17 +428,18 @@ inline void update_endstops() {
}
#else // !Z_DUAL_ENDSTOPS
UPDATE_ENDSTOP(Z, MIN);
#if ENABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && ENABLED(HAS_Z_MIN_PROBE)
if (z_probe_is_active) UPDATE_ENDSTOP(Z, MIN);
#else
UPDATE_ENDSTOP(Z, MIN);
#endif
#endif // !Z_DUAL_ENDSTOPS
#endif // Z_MIN_PIN
#endif
#if ENABLED(Z_MIN_PROBE_ENDSTOP)
UPDATE_ENDSTOP(Z, MIN_PROBE);
if (TEST_ENDSTOP(Z_MIN_PROBE)) {
endstops_trigsteps[Z_AXIS] = count_position[Z_AXIS];
SBI(endstop_hit_bits, Z_MIN_PROBE);
#if ENABLED(Z_MIN_PROBE_ENDSTOP) && DISABLED(Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN) && ENABLED(HAS_Z_MIN_PROBE)
if (z_probe_is_active) {
UPDATE_ENDSTOP(Z, MIN_PROBE);
if (TEST_ENDSTOP(Z_MIN_PROBE)) endstop_hit_bits |= _BV(Z_MIN_PROBE);
}
#endif
}
@ -649,7 +653,11 @@ ISR(TIMER1_COMPA_vect) {
if (current_block != NULL) {
// Update endstops state, if enabled
if (check_endstops) update_endstops();
#if ENABLED(HAS_Z_MIN_PROBE)
if (check_endstops || z_probe_is_active) update_endstops();
#else
if (check_endstops) update_endstops();
#endif
// Take multiple steps per interrupt (For high speed moves)
for (int8_t i = 0; i < step_loops; i++) {