ManuelW/grbl-LPC-CoreXY
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Compile-option for inverting spindle enable.

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- Installed a compile-option for inverting the spindle enable pin for
certain electronics boards users have reported needing this.
This commit is contained in:
Sungeun Jeon 2015-03-27 19:59:34 -06:00
parent ed29d8a122
commit 234195e721
2 changed files with 27 additions and 4 deletions
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7
grbl/config.h
View File

@ -156,6 +156,13 @@
// NOTE: Will eventually be added to Grbl settings in v1.0.
// #define INVERT_CONTROL_PIN // Default disabled. Uncomment to enable.
// Inverts the spindle enable pin from low-disabled/high-enabled to low-enabled/high-disabled. Useful
// for some pre-built electronic boards.
// NOTE: If VARIABLE_SPINDLE is enabled(default), this option has no effect as the PWM output and
// spindle enable are combined to one pin. If you need both this option and spindle speed PWM,
// uncomment the config option USE_SPINDLE_DIR_AS_ENABLE_PIN below.
// #define INVERT_SPINDLE_ENABLE_PIN // Default disabled. Uncomment to enable.
// Enable limit pin states feedback in status reports. The data is presented as 0 (low) or 1(high),
// where the order is XYZ. For example, if the Y- and Z-limit pins are active, Grbl will include the
// following string in the status report "Lim:011". This is generally useful for setting up a new

20
grbl/spindle_control.c
View File

@ -49,10 +49,18 @@ void spindle_stop()
#ifdef VARIABLE_SPINDLE
TCCRA_REGISTER &= ~(1<<COMB_BIT); // Disable PWM. Output voltage is zero.
#if defined(CPU_MAP_ATMEGA2560) || defined(USE_SPINDLE_DIR_AS_ENABLE_PIN)
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT); // Set pin to low.
#ifdef INVERT_SPINDLE_ENABLE_PIN
SPINDLE_ENABLE_PORT |= (1<<SPINDLE_ENABLE_BIT); // Set pin to high
#else
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT); // Set pin to low
#endif
#endif
#else
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT); // Set pin to low.
#ifdef INVERT_SPINDLE_ENABLE_PIN
SPINDLE_ENABLE_PORT |= (1<<SPINDLE_ENABLE_BIT); // Set pin to high
#else
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT); // Set pin to low
#endif
#endif
}
@ -101,12 +109,20 @@ void spindle_set_state(uint8_t state, float rpm)
// On the Uno, spindle enable and PWM are shared, unless otherwise specified.
#if defined(CPU_MAP_ATMEGA2560) || defined(USE_SPINDLE_DIR_AS_ENABLE_PIN)
#ifdef INVERT_SPINDLE_ENABLE_PIN
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT);
#else
SPINDLE_ENABLE_PORT |= (1<<SPINDLE_ENABLE_BIT);
#endif
#endif
#else
#ifdef INVERT_SPINDLE_ENABLE_PIN
SPINDLE_ENABLE_PORT &= ~(1<<SPINDLE_ENABLE_BIT);
#else
SPINDLE_ENABLE_PORT |= (1<<SPINDLE_ENABLE_BIT);
#endif
#endif
}
}