3DPrinting/Prusa-Firmware
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Save 1K flash memory.

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This commit is contained in:
Marek Bel 2018-09-03 20:00:46 +02:00
parent 0d99dc0a3f
commit 0e50c388af
1 changed files with 28 additions and 51 deletions
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77
Firmware/mmu.cpp
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@ -11,6 +11,7 @@
#include "cardreader.h" #include "cardreader.h"
#include "ultralcd.h" #include "ultralcd.h"
#include "sound.h" #include "sound.h"
#include <avr/pgmspace.h>
#define CHECK_FINDA ((IS_SD_PRINTING || is_usb_printing) && (mcode_in_progress != 600) && !saved_printing && e_active()) #define CHECK_FINDA ((IS_SD_PRINTING || is_usb_printing) && (mcode_in_progress != 600) && !saved_printing && e_active())
@ -642,61 +643,37 @@ void extr_adj(int extruder) //loading filament for SNMM
#endif #endif
} }
struct E_step
{
float extrude; //!< extrude distance in mm
float feed_rate; //!< feed rate in mm/s
};
static const E_step ramming_sequence[] PROGMEM =
{
{1.0, 1000.0/60},
{1.0, 1500.0/60},
{2.0, 2000.0/60},
{1.5, 3000.0/60},
{2.5, 4000.0/60},
{-15.0, 5000.0/60},
{-14.0, 1200.0/60},
{-6.0, 600.0/60},
{10.0, 700.0/60},
{-10.0, 400.0/60},
{-50.0, 2000.0/60},
};
//! @brief Unload sequence to optimize shape of the tip of the unloaded filament //! @brief Unload sequence to optimize shape of the tip of the unloaded filament
//!
//! Ideas to minimize flash consumption of this code:
//!
//! Create const array of extrude and feed_rate on stack, call increment current_position, plan_buffer_line() and st_synchronize()
//! in loop iterating over array.
//!
//! Same as previous, but create array in PROGMEM and call PGM_read instructions in a loop.
//!
static void filament_ramming() static void filament_ramming()
{ {
current_position[E_AXIS] += 1; for(uint8_t i = 0; i < (sizeof(ramming_sequence)/sizeof(E_step));++i)
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 1000 / 60, active_extruder); {
st_synchronize(); current_position[E_AXIS] += pgm_read_float(&(ramming_sequence[i].extrude));
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS],
current_position[E_AXIS] += 1; current_position[E_AXIS], pgm_read_float(&(ramming_sequence[i].feed_rate)), active_extruder);
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 1500 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] += 2;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 2000 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] += 1.5;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 3000 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] += 2.5;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 4000 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] -= 15;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 5000 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] -= 14;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 1200 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] -= 6;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 600 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] += 10;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 700 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] -= 10;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 400 / 60, active_extruder);
st_synchronize();
current_position[E_AXIS] -= 50;
plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[E_AXIS], 2000 / 60, active_extruder);
st_synchronize(); st_synchronize();
} }
}
void extr_unload() void extr_unload()
{ //unload just current filament for multimaterial printers { //unload just current filament for multimaterial printers