ManuelW/grbl-LPC-CoreXY
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Added runtime configurable global settings with eeprom persitence

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This commit is contained in:
Simen Svale Skogsrud
2010-03-07 20:29:18 +01:00
parent a6b8d73044
commit b8ba8a4231
13 changed files with 350 additions and 48 deletions
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12
stepper.c
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@ -95,8 +95,8 @@ SIGNAL(SIG_OUTPUT_COMPARE1A)
// Then pulse the stepping pins
STEPPING_PORT = (STEPPING_PORT & ~STEP_MASK) | out_bits;
// Reset step pulse reset timer so that SIG_OVERFLOW2 can reset the signal after
// exactly STEP_PULSE_MICROSECONDS microseconds.
TCNT2 = -(((STEP_PULSE_MICROSECONDS-2)*TICKS_PER_MICROSECOND)/8);
// exactly settings.pulse_microseconds microseconds.
TCNT2 = -(((settings.pulse_microseconds-2)*TICKS_PER_MICROSECOND)/8);
busy = TRUE;
sei(); // Re enable interrupts (normally disabled while inside an interrupt handler)
@ -150,17 +150,17 @@ SIGNAL(SIG_OUTPUT_COMPARE1A)
} else {
out_bits = 0;
}
out_bits ^= STEPPING_INVERT_MASK;
out_bits ^= settings.invert_mask;
busy=FALSE;
PORTD &= ~(1<<3);
}
// This interrupt is set up by SIG_OUTPUT_COMPARE1A when it sets the motor port bits. It resets
// the motor port after a short period (STEP_PULSE_MICROSECONDS) completing one step cycle.
// the motor port after a short period (settings.pulse_microseconds) completing one step cycle.
SIGNAL(SIG_OVERFLOW2)
{
// reset stepping pins (leave the direction pins)
STEPPING_PORT = (STEPPING_PORT & ~STEP_MASK) | (STEPPING_INVERT_MASK & STEP_MASK);
STEPPING_PORT = (STEPPING_PORT & ~STEP_MASK) | (settings.invert_mask & STEP_MASK);
}
// Initialize and start the stepper motor subsystem
@ -168,7 +168,7 @@ void st_init()
{
// Configure directions of interface pins
STEPPING_DDR |= STEPPING_MASK;
STEPPING_PORT = (STEPPING_PORT & ~STEPPING_MASK); //| STEPPING_INVERT_MASK;
STEPPING_PORT = (STEPPING_PORT & ~STEPPING_MASK) | settings.invert_mask;
LIMIT_DDR &= ~(LIMIT_MASK);
STEPPERS_ENABLE_DDR |= 1<<STEPPERS_ENABLE_BIT;