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Added support for dual Z axis stepper drivers

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This commit is contained in:
Enchiridion 2012-08-04 00:32:26 -06:00
parent 538189cc19
commit 50cde90324
4 changed files with 57 additions and 2 deletions
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12
Marlin/Configuration_adv.h
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@ -78,6 +78,18 @@
//#define Z_LATE_ENABLE // Enable Z the last moment. Needed if your Z driver overheats.
// A single Z stepper driver is usually used to drive 2 stepper motors.
// Uncomment this define to utilize a separate stepper driver for each Z axis motor.
// Only a few motherboards support this, like RAMPS, which have dual extruder support (the 2nd, often unused, extruder driver is used
// to control the 2nd Z axis stepper motor). The pins are currently only defined for a RAMPS motherboards.
// On a RAMPS (or other 5 driver) motherboard, using this feature will limit you to using 1 extruder.
//#define Z_DUAL_STEPPER_DRIVERS
#ifdef Z_DUAL_STEPPER_DRIVERS
#undef EXTRUDERS
#define EXTRUDERS 1
#endif
//homing hits the endstop, then retracts by this distance, before it tries to slowly bump again:
#define X_HOME_RETRACT_MM 5
#define Y_HOME_RETRACT_MM 5

5
Marlin/Marlin.h
View file

@ -122,8 +122,13 @@ void manage_inactivity(byte debug);
#endif
#if Z_ENABLE_PIN > -1
#ifdef Z_DUAL_STEPPER_DRIVERS
#define enable_z() { WRITE(Z_ENABLE_PIN, Z_ENABLE_ON); WRITE(Z2_ENABLE_PIN, Z_ENABLE_ON); }
#define disable_z() { WRITE(Z_ENABLE_PIN,!Z_ENABLE_ON); WRITE(Z2_ENABLE_PIN,!Z_ENABLE_ON); }
#else
#define enable_z() WRITE(Z_ENABLE_PIN, Z_ENABLE_ON)
#define disable_z() WRITE(Z_ENABLE_PIN,!Z_ENABLE_ON)
#endif
#else
#define enable_z() ;
#define disable_z() ;

4
Marlin/pins.h
View file

@ -267,6 +267,10 @@
#define Z_MIN_PIN 18
#define Z_MAX_PIN 19
#define Z2_STEP_PIN 36
#define Z2_DIR_PIN 34
#define Z2_ENABLE_PIN 30
#define E0_STEP_PIN 26
#define E0_DIR_PIN 28
#define E0_ENABLE_PIN 24

34
Marlin/stepper.cpp
View file

@ -421,6 +421,11 @@ ISR(TIMER1_COMPA_vect)
if ((out_bits & (1<<Z_AXIS)) != 0) { // -direction
WRITE(Z_DIR_PIN,INVERT_Z_DIR);
#ifdef Z_DUAL_STEPPER_DRIVERS
WRITE(Z2_DIR_PIN,INVERT_Z_DIR);
#endif
count_direction[Z_AXIS]=-1;
CHECK_ENDSTOPS
{
@ -437,6 +442,11 @@ ISR(TIMER1_COMPA_vect)
}
else { // +direction
WRITE(Z_DIR_PIN,!INVERT_Z_DIR);
#ifdef Z_DUAL_STEPPER_DRIVERS
WRITE(Z2_DIR_PIN,!INVERT_Z_DIR);
#endif
count_direction[Z_AXIS]=1;
CHECK_ENDSTOPS
{
@ -552,9 +562,18 @@ ISR(TIMER1_COMPA_vect)
counter_z += current_block->steps_z;
if (counter_z > 0) {
WRITE(Z_STEP_PIN, !INVERT_Z_STEP_PIN);
#ifdef Z_DUAL_STEPPER_DRIVERS
WRITE(Z2_STEP_PIN, !INVERT_Z_STEP_PIN);
#endif
counter_z -= current_block->step_event_count;
count_position[Z_AXIS]+=count_direction[Z_AXIS];
WRITE(Z_STEP_PIN, INVERT_Z_STEP_PIN);
#ifdef Z_DUAL_STEPPER_DRIVERS
WRITE(Z2_STEP_PIN, INVERT_Z_STEP_PIN);
#endif
}
#ifndef ADVANCE
@ -704,6 +723,10 @@ void st_init()
#endif
#if Z_DIR_PIN > -1
SET_OUTPUT(Z_DIR_PIN);
#if defined(Z_DUAL_STEPPER_DRIVERS) && (Z2_DIR_PIN > -1)
SET_OUTPUT(Z2_DIR_PIN);
#endif
#endif
#if E0_DIR_PIN > -1
SET_OUTPUT(E0_DIR_PIN);
@ -728,6 +751,11 @@ void st_init()
#if (Z_ENABLE_PIN > -1)
SET_OUTPUT(Z_ENABLE_PIN);
if(!Z_ENABLE_ON) WRITE(Z_ENABLE_PIN,HIGH);
#if defined(Z_DUAL_STEPPER_DRIVERS) && (Z2_ENABLE_PIN > -1)
SET_OUTPUT(Z2_ENABLE_PIN);
if(!Z_ENABLE_ON) WRITE(Z2_ENABLE_PIN,HIGH);
#endif
#endif
#if (E0_ENABLE_PIN > -1)
SET_OUTPUT(E0_ENABLE_PIN);
@ -802,6 +830,12 @@ void st_init()
SET_OUTPUT(Z_STEP_PIN);
WRITE(Z_STEP_PIN,INVERT_Z_STEP_PIN);
if(!Z_ENABLE_ON) WRITE(Z_ENABLE_PIN,HIGH);
#if defined(Z_DUAL_STEPPER_DRIVERS) && (Z2_STEP_PIN > -1)
SET_OUTPUT(Z2_STEP_PIN);
WRITE(Z2_STEP_PIN,INVERT_Z_STEP_PIN);
if(!Z_ENABLE_ON) WRITE(Z2_ENABLE_PIN,HIGH);
#endif
#endif
#if (E0_STEP_PIN > -1)
SET_OUTPUT(E0_STEP_PIN);