ManuelW/grbl-LPC-CoreXY
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cleaned up stepper signal in junctions between short line segments

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Simen Svale Skogsrud 2010-03-03 22:18:17 +01:00
parent 48855ec977
commit db193f4336
1 changed files with 6 additions and 0 deletions
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6
stepper.c
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@ -94,6 +94,12 @@ SIGNAL(SIG_OUTPUT_COMPARE1A)
STEPPING_PORT = (STEPPING_PORT & ~STEP_MASK) | out_bits; STEPPING_PORT = (STEPPING_PORT & ~STEP_MASK) | out_bits;
// Reset step pulse reset timer // Reset step pulse reset timer
TCNT2 = -(((STEP_PULSE_MICROSECONDS-4)*TICKS_PER_MICROSECOND)/8); TCNT2 = -(((STEP_PULSE_MICROSECONDS-4)*TICKS_PER_MICROSECOND)/8);
// Enable interrupts in order for SIG_OVERFLOW2 to be able to be triggered
// and reset the stepper signal even before this handler is done. Needed
// to generate a clean stepper-signal even if this is going to be a time consuming
// time oround in this interrupt e.g. if we just completed a line and need to
// set up another.
sei();
// If there is no current line, attempt to pop one from the buffer // If there is no current line, attempt to pop one from the buffer
if (current_line == NULL) { if (current_line == NULL) {