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Allow buffer clean without release command

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This commit is contained in:
Scott Lahteine 2017-12-06 13:23:28 -06:00
parent ff26b7446c
commit 93560836de
2 changed files with 27 additions and 22 deletions
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47
Marlin/stepper.cpp
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@ -83,7 +83,7 @@ block_t* Stepper::current_block = NULL; // A pointer to the block currently bei
// private:
uint8_t Stepper::last_direction_bits = 0; // The next stepping-bits to be output
uint16_t Stepper::cleaning_buffer_counter = 0;
int16_t Stepper::cleaning_buffer_counter = 0;
#if ENABLED(X_DUAL_ENDSTOPS)
bool Stepper::locked_x_motor = false, Stepper::locked_x2_motor = false;
@ -381,8 +381,8 @@ void Stepper::isr() {
uint16_t ocr_val;
#define ENDSTOP_NOMINAL_OCR_VAL 3000 // check endstops every 1.5ms to guarantee two stepper ISRs within 5ms for BLTouch
#define OCR_VAL_TOLERANCE 1000 // First max delay is 2.0ms, last min delay is 0.5ms, all others 1.5ms
#define ENDSTOP_NOMINAL_OCR_VAL 3000 // Check endstops every 1.5ms to guarantee two stepper ISRs within 5ms for BLTouch
#define OCR_VAL_TOLERANCE 1000 // First max delay is 2.0ms, last min delay is 0.5ms, all others 1.5ms
#if DISABLED(LIN_ADVANCE)
// Disable Timer0 ISRs and enable global ISR again to capture UART events (incoming chars)
@ -393,9 +393,13 @@ void Stepper::isr() {
#define _SPLIT(L) (ocr_val = (uint16_t)L)
#if ENABLED(ENDSTOP_INTERRUPTS_FEATURE)
#define SPLIT(L) _SPLIT(L)
#else // sample endstops in between step pulses
#else // !ENDSTOP_INTERRUPTS_FEATURE : Sample endstops between stepping ISRs
static uint32_t step_remaining = 0;
#define SPLIT(L) do { \
_SPLIT(L); \
if (ENDSTOPS_ENABLED && L > ENDSTOP_NOMINAL_OCR_VAL) { \
@ -407,33 +411,34 @@ void Stepper::isr() {
if (step_remaining && ENDSTOPS_ENABLED) { // Just check endstops - not yet time for a step
endstops.update();
if (step_remaining > ENDSTOP_NOMINAL_OCR_VAL) {
step_remaining -= ENDSTOP_NOMINAL_OCR_VAL;
ocr_val = ENDSTOP_NOMINAL_OCR_VAL;
}
else {
ocr_val = step_remaining;
step_remaining = 0; // last one before the ISR that does the step
}
// Next ISR either for endstops or stepping
ocr_val = step_remaining <= ENDSTOP_NOMINAL_OCR_VAL ? step_remaining : ENDSTOP_NOMINAL_OCR_VAL;
step_remaining -= ocr_val;
_NEXT_ISR(ocr_val);
NOLESS(OCR1A, TCNT1 + 16);
_ENABLE_ISRs(); // re-enable ISRs
return;
}
#endif
#endif // !ENDSTOP_INTERRUPTS_FEATURE
//
// When cleaning, discard the current block and run fast
//
if (cleaning_buffer_counter) {
--cleaning_buffer_counter;
current_block = NULL;
planner.discard_current_block();
#ifdef SD_FINISHED_RELEASECOMMAND
if (!cleaning_buffer_counter && (SD_FINISHED_STEPPERRELEASE)) enqueue_and_echo_commands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
#endif
_NEXT_ISR(200); // Run at max speed - 10 KHz
_ENABLE_ISRs(); // re-enable ISRs
if (cleaning_buffer_counter < 0)
++cleaning_buffer_counter; // Count up for endstop hit
else {
--cleaning_buffer_counter; // Count down for abort print
#ifdef SD_FINISHED_RELEASECOMMAND
if (!cleaning_buffer_counter && (SD_FINISHED_STEPPERRELEASE)) enqueue_and_echo_commands_P(PSTR(SD_FINISHED_RELEASECOMMAND));
#endif
}
_NEXT_ISR(200); // Run at max speed - 10 KHz
_ENABLE_ISRs();
return;
}

2
Marlin/stepper.h
View File

@ -104,7 +104,7 @@ class Stepper {
private:
static uint8_t last_direction_bits; // The next stepping-bits to be output
static uint16_t cleaning_buffer_counter;
static int16_t cleaning_buffer_counter;
#if ENABLED(X_DUAL_ENDSTOPS)
static bool locked_x_motor, locked_x2_motor;