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Add M88 command to move Z axis to full-step position 

Introduces the M88 G-code command for TMC2130 drivers to move the Z axis to a full-step position. Adds corresponding message and menu item for LCD calibration when Z axis position is known.
This commit is contained in:
Mathias Gyldenberg 2025-09-06 22:54:18 +02:00
parent f3e0dfd481
commit 8d22106b88
4 changed files with 21 additions and 0 deletions
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16
Firmware/Marlin_main.cpp
View File

@ -5707,6 +5707,22 @@ void process_commands()
break;
#endif
/*!
### M88 - Move Z axis to a full-step position
*/
#ifdef TMC2130
case 88:
if (axis_known_position[Z_AXIS]) {
float target_z = current_position[Z_AXIS] + float(1024 - tmc2130_rd_MSCNT(Z_AXIS)) / (tmc2130_get_res(Z_AXIS) * cs.axis_steps_per_mm[Z_AXIS]) + 0.16f;
if (target_z <= max_pos[Z_AXIS]) {
current_position[Z_AXIS] = target_z;
plan_buffer_line_curposXYZE(homing_feedrate[Z_AXIS]/60);
st_synchronize();
}
}
break;
#endif
/*!
### M92 - Set Axis steps-per-unit <a href="https://reprap.org/wiki/G-code#M92:_Set_axis_steps_per_unit">M92: Set axis_steps_per_unit</a>
Allows programming of steps per unit (usually mm) for motor drives. These values are reset to firmware defaults on power on, unless saved to EEPROM if available (M500 in Marlin)

1
Firmware/messages.cpp
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@ -414,6 +414,7 @@ const char MSG_HOST_ACTION_START[] PROGMEM_N1 = "//action:start"; ////
const char MSG_HOST_ACTION_UVLO_RECOVERY_READY[] PROGMEM_N1 = "//action:uvlo_recovery_ready"; ////
const char MSG_HOST_ACTION_UVLO_AUTO_RECOVERY_READY[] PROGMEM_N1 = "//action:uvlo_auto_recovery_ready"; ////
const char MSG_HOST_ACTION_NOTIFICATION[] PROGMEM_N1 = "//action:notification %S\n"; ////
const char MSG_FULLSTEP_Z[] PROGMEM_N1 = "Fullstep Z axis"; ////
#ifdef HOST_SHUTDOWN
const char MSG_HOST_ACTION_SHUTDOWN[] PROGMEM_N1 = "//action:shutdown"; ////
#endif //HOST_SHUTOWN

1
Firmware/messages.h
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@ -416,6 +416,7 @@ extern const char MSG_HOST_ACTION_START[];
extern const char MSG_HOST_ACTION_UVLO_RECOVERY_READY[];
extern const char MSG_HOST_ACTION_UVLO_AUTO_RECOVERY_READY[];
extern const char MSG_HOST_ACTION_NOTIFICATION[];
extern const char MSG_FULLSTEP_Z[];
#ifdef HOST_SHUTDOWN
extern const char MSG_HOST_ACTION_SHUTDOWN[];
#endif //HOST_SHUTOWN

3
Firmware/ultralcd.cpp
View File

@ -4555,6 +4555,9 @@ static void lcd_calibration_menu()
MENU_ITEM_SUBMENU_P(_T(MSG_V2_CALIBRATION), lcd_first_layer_calibration_reset);
}
MENU_ITEM_GCODE_P(_T(MSG_AUTO_HOME), G28W);
if (axis_known_position[Z_AXIS]) {
MENU_ITEM_GCODE_P(_T(MSG_FULLSTEP_Z), PSTR("M88"));
}
#ifdef TMC2130
MENU_ITEM_FUNCTION_P(_T(MSG_BELTTEST), lcd_belttest_v);
#endif //TMC2130