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UBL core and support files

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This commit is contained in:
Scott Lahteine 2017-03-18 10:14:31 -05:00
parent cf94688925
commit 238b8fd2a3
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1001
Marlin/G26_Mesh_Validation_Tool.cpp Normal file
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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016, 2017 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "Marlin.h"
#include "math.h"
#ifndef UNIFIED_BED_LEVELING_H
#define UNIFIED_BED_LEVELING_H
#if ENABLED(AUTO_BED_LEVELING_UBL)
#define UBL_OK false
#define UBL_ERR true
typedef struct {
int x_index, y_index;
float distance; // Not always used. But when populated, it is the distance
// from the search location
} mesh_index_pair;
struct vector { double dx, dy, dz; };
enum Mesh_Point_Type { INVALID, REAL, SET_IN_BITMAP };
bool axis_unhomed_error(bool, bool, bool);
void dump(char *str, float f);
bool G29_lcd_clicked();
void probe_entire_mesh(float, float, bool, bool);
void UBL_line_to_destination(const float&, const float&, const float&, const float&, const float&, uint8_t);
void manually_probe_remaining_mesh(float, float, float, float, bool);
struct vector tilt_mesh_based_on_3pts(float, float, float);
void new_set_bed_level_equation_3pts(float, float, float);
float measure_business_card_thickness(float);
mesh_index_pair find_closest_mesh_point_of_type(Mesh_Point_Type, float, float, bool, unsigned int[16]);
void Find_Mean_Mesh_Height();
void Shift_Mesh_Height();
bool G29_Parameter_Parsing();
void G29_What_Command();
void G29_EEPROM_Dump();
void G29_Kompare_Current_Mesh_to_Stored_Mesh();
void fine_tune_mesh(float, float, float, bool);
void bit_clear(uint16_t bits[16], uint8_t x, uint8_t y);
void bit_set(uint16_t bits[16], uint8_t x, uint8_t y);
bool is_bit_set(uint16_t bits[16], uint8_t x, uint8_t y);
char *ftostr43sign(const float&, char);
void gcode_G26();
void gcode_G28();
void gcode_G29();
extern char conv[9];
void save_UBL_active_state_and_disable();
void restore_UBL_active_state_and_leave();
///////////////////////////////////////////////////////////////////////////////////////////////////////
#if ENABLED(ULTRA_LCD)
extern char lcd_status_message[];
void lcd_quick_feedback();
#endif
enum MBLStatus { MBL_STATUS_NONE = 0, MBL_STATUS_HAS_MESH_BIT = 0, MBL_STATUS_ACTIVE_BIT = 1 };
#define MESH_X_DIST ((float(UBL_MESH_MAX_X) - float(UBL_MESH_MIN_X)) / (float(UBL_MESH_NUM_X_POINTS) - 1.0))
#define MESH_Y_DIST ((float(UBL_MESH_MAX_Y) - float(UBL_MESH_MIN_Y)) / (float(UBL_MESH_NUM_Y_POINTS) - 1.0))
extern bool G26_Debug_flag;
extern float last_specified_z;
extern float fade_scaling_factor_for_current_height;
extern float z_values[UBL_MESH_NUM_X_POINTS][UBL_MESH_NUM_Y_POINTS];
extern float mesh_index_to_X_location[UBL_MESH_NUM_X_POINTS + 1]; // +1 just because of paranoia that we might end up on the
extern float mesh_index_to_Y_location[UBL_MESH_NUM_Y_POINTS + 1]; // the last Mesh Line and that is the start of a whole new cell
class bed_leveling {
public:
struct ubl_state {
bool active = false;
float z_offset = 0.0;
int EEPROM_storage_slot = -1,
n_x = UBL_MESH_NUM_X_POINTS,
n_y = UBL_MESH_NUM_Y_POINTS;
float mesh_x_min = UBL_MESH_MIN_X,
mesh_y_min = UBL_MESH_MIN_Y,
mesh_x_max = UBL_MESH_MAX_X,
mesh_y_max = UBL_MESH_MAX_Y,
mesh_x_dist = MESH_X_DIST,
mesh_y_dist = MESH_Y_DIST,
G29_Correction_Fade_Height = 10.0,
G29_Fade_Height_Multiplier = 1.0 / 10.0; // It is cheaper to do a floating point multiply than a floating
// point divide. So, we keep this number in both forms. The first
// is for the user. The second one is the one that is actually used
// again and again and again during the correction calculations.
unsigned char padding[24]; // This is just to allow room to add state variables without
// changing the location of data structures in the EEPROM.
// This is for compatability with future versions to keep
// people from having to regenerate thier mesh data.
//
// If you change the contents of this struct, please adjust
// the padding[] to keep the size the same!
} state, pre_initialized;
bed_leveling();
// ~bed_leveling(); // No destructor because this object never goes away!
void display_map(int);
void reset();
void invalidate();
void store_state();
void load_state();
void store_mesh(int);
void load_mesh(int);
bool sanity_check();
FORCE_INLINE float map_x_index_to_bed_location(int8_t i){ return ((float) UBL_MESH_MIN_X) + (((float) MESH_X_DIST) * (float) i); };
FORCE_INLINE float map_y_index_to_bed_location(int8_t i){ return ((float) UBL_MESH_MIN_Y) + (((float) MESH_Y_DIST) * (float) i); };
void set_z(const int8_t px, const int8_t py, const float z) { z_values[px][py] = z; }
int8_t get_cell_index_x(float x) {
int8_t cx = (x - (UBL_MESH_MIN_X)) * (1.0 / (MESH_X_DIST));
return constrain(cx, 0, (UBL_MESH_NUM_X_POINTS) - 1); // -1 is appropriate if we want all movement to the X_MAX
} // position. But with this defined this way, it is possible
// to extrapolate off of this point even further out. Probably
// that is OK because something else should be keeping that from
// happening and should not be worried about at this level.
int8_t get_cell_index_y(float y) {
int8_t cy = (y - (UBL_MESH_MIN_Y)) * (1.0 / (MESH_Y_DIST));
return constrain(cy, 0, (UBL_MESH_NUM_Y_POINTS) - 1); // -1 is appropriate if we want all movement to the Y_MAX
} // position. But with this defined this way, it is possible
// to extrapolate off of this point even further out. Probably
// that is OK because something else should be keeping that from
// happening and should not be worried about at this level.
int8_t find_closest_x_index(float x) {
int8_t px = (x - (UBL_MESH_MIN_X) + (MESH_X_DIST) * 0.5) * (1.0 / (MESH_X_DIST));
return (px >= 0 && px < (UBL_MESH_NUM_X_POINTS)) ? px : -1;
}
int8_t find_closest_y_index(float y) {
int8_t py = (y - (UBL_MESH_MIN_Y) + (MESH_Y_DIST) * 0.5) * (1.0 / (MESH_Y_DIST));
return (py >= 0 && py < (UBL_MESH_NUM_Y_POINTS)) ? py : -1;
}
/**
* z2 --|
* z0 | |
* | | + (z2-z1)
* z1 | | |
* ---+-------------+--------+-- --|
* a1 a0 a2
* |<---delta_a---------->|
*
* calc_z0 is the basis for all the Mesh Based correction. It is used to
* find the expected Z Height at a position between two known Z-Height locations
*
* It is farly expensive with its 4 floating point additions and 2 floating point
* multiplications.
*/
inline float calc_z0(float a0, float a1, float z1, float a2, float z2) {
float delta_z = (z2 - z1);
float delta_a = (a0 - a1) / (a2 - a1);
return z1 + delta_a * delta_z;
}
/**
* get_z_correction_at_Y_intercept(float x0, int x1_i, int yi) only takes
* three parameters. It assumes the x0 point is on a Mesh line denoted by yi. In theory
* we could use get_cell_index_x(float x) to obtain the 2nd parameter x1_i but any code calling
* the get_z_correction_along_vertical_mesh_line_at_specific_X routine will already have
* the X index of the x0 intersection available and we don't want to perform any extra floating
* point operations.
*/
inline float get_z_correction_along_horizontal_mesh_line_at_specific_X(float x0, int x1_i, int yi) {
if (x1_i < 0 || yi < 0 || x1_i >= UBL_MESH_NUM_X_POINTS || yi >= UBL_MESH_NUM_Y_POINTS) {
SERIAL_ECHOPAIR("? in get_z_correction_along_horizontal_mesh_line_at_specific_X(x0=", x0);
SERIAL_ECHOPAIR(",x1_i=", x1_i);
SERIAL_ECHOPAIR(",yi=", yi);
SERIAL_CHAR(')');
SERIAL_EOL;
return NAN;
}
const float a0ma1diva2ma1 = (x0 - mesh_index_to_X_location[x1_i]) * (1.0 / (MESH_X_DIST)),
z1 = z_values[x1_i][yi],
z2 = z_values[x1_i + 1][yi],
dz = (z2 - z1);
return z1 + a0ma1diva2ma1 * dz;
}
//
// See comments above for get_z_correction_along_horizontal_mesh_line_at_specific_X
//
inline float get_z_correction_along_vertical_mesh_line_at_specific_Y(float y0, int xi, int y1_i) {
if (xi < 0 || y1_i < 0 || xi >= UBL_MESH_NUM_X_POINTS || y1_i >= UBL_MESH_NUM_Y_POINTS) {
SERIAL_ECHOPAIR("? in get_z_correction_along_vertical_mesh_line_at_specific_X(y0=", y0);
SERIAL_ECHOPAIR(", x1_i=", xi);
SERIAL_ECHOPAIR(", yi=", y1_i);
SERIAL_CHAR(')');
SERIAL_EOL;
return NAN;
}
const float a0ma1diva2ma1 = (y0 - mesh_index_to_Y_location[y1_i]) * (1.0 / (MESH_Y_DIST)),
z1 = z_values[xi][y1_i],
z2 = z_values[xi][y1_i + 1],
dz = (z2 - z1);
return z1 + a0ma1diva2ma1 * dz;
}
/**
* This is the generic Z-Correction. It works anywhere within a Mesh Cell. It first
* does a linear interpolation along both of the bounding X-Mesh-Lines to find the
* Z-Height at both ends. Then it does a linear interpolation of these heights based
* on the Y position within the cell.
*/
float get_z_correction(float x0, float y0) {
int8_t cx = get_cell_index_x(x0),
cy = get_cell_index_y(y0);
if (cx < 0 || cy < 0 || cx >= UBL_MESH_NUM_X_POINTS || cy >= UBL_MESH_NUM_Y_POINTS) {
SERIAL_ECHOPAIR("? in get_z_correction(x0=", x0);
SERIAL_ECHOPAIR(", y0=", y0);
SERIAL_CHAR(')');
SERIAL_EOL;
#if ENABLED(ULTRA_LCD)
strcpy(lcd_status_message, "get_z_correction() indexes out of range.");
lcd_quick_feedback();
#endif
return 0.0; // this used to return state.z_offset
}
float z1 = calc_z0(x0,
map_x_index_to_bed_location(cx), z_values[cx][cy],
map_x_index_to_bed_location(cx + 1), z_values[cx + 1][cy]);
float z2 = calc_z0(x0,
map_x_index_to_bed_location(cx), z_values[cx][cy + 1],
map_x_index_to_bed_location(cx + 1), z_values[cx + 1][cy + 1]);
float z0 = calc_z0(y0,
map_y_index_to_bed_location(cy), z1,
map_y_index_to_bed_location(cy + 1), z2);
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(MESH_ADJUST)) {
SERIAL_ECHOPAIR(" raw get_z_correction(", x0);
SERIAL_ECHOPAIR(",", y0);
SERIAL_ECHOPGM(")=");
SERIAL_PROTOCOL_F(z0, 6);
}
#endif
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(MESH_ADJUST)) {
SERIAL_ECHOPGM(" >>>---> ");
SERIAL_PROTOCOL_F(z0, 6);
SERIAL_EOL;
}
#endif
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in blm.z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
#if ENABLED(DEBUG_LEVELING_FEATURE)
if (DEBUGGING(MESH_ADJUST)) {
SERIAL_ECHOPGM("??? Yikes! NAN in get_z_correction( ");
SERIAL_ECHO(x0);
SERIAL_ECHOPGM(", ");
SERIAL_ECHO(y0);
SERIAL_ECHOLNPGM(" )");
}
#endif
}
return z0; // there used to be a +state.z_offset on this line
}
/**
* This routine is used to scale the Z correction depending upon the current nozzle height. It is
* optimized for speed. It avoids floating point operations by checking if the requested scaling
* factor is going to be the same as the last time the function calculated a value. If so, it just
* returns it.
*
* If it must do a calcuation, it will return a scaling factor of 0.0 if the UBL System is not active
* or if the current Z Height is past the specified 'Fade Height'
*/
FORCE_INLINE float fade_scaling_factor_for_Z(float current_z) {
if (last_specified_z == current_z)
return fade_scaling_factor_for_current_height;
last_specified_z = current_z;
fade_scaling_factor_for_current_height =
state.active && current_z < state.G29_Correction_Fade_Height
? 1.0 - (current_z * state.G29_Fade_Height_Multiplier)
: 0.0;
return fade_scaling_factor_for_current_height;
}
};
extern bed_leveling blm;
extern int Unified_Bed_Leveling_EEPROM_start;
#endif // AUTO_BED_LEVELING_UBL
#endif // UNIFIED_BED_LEVELING_H

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "Marlin.h"
#include "math.h"
#if ENABLED(AUTO_BED_LEVELING_UBL)
#include "UBL.h"
#include "hex_print_routines.h"
/**
* These variables used to be declared inside the bed_leveling class. We are going to still declare
* them within the .cpp file for bed leveling. But there is only one instance of the bed leveling
* object and we can get rid of a level of inderection by not making them 'member data'. So, in the
* interest of speed, we do it this way. When we move to a 32-Bit processor, they can be moved
* back inside the bed leveling class.
*/
float last_specified_z,
fade_scaling_factor_for_current_height,
z_values[UBL_MESH_NUM_X_POINTS][UBL_MESH_NUM_Y_POINTS],
mesh_index_to_X_location[UBL_MESH_NUM_X_POINTS + 1], // +1 just because of paranoia that we might end up on the
mesh_index_to_Y_location[UBL_MESH_NUM_Y_POINTS + 1]; // the last Mesh Line and that is the start of a whole new cell
bed_leveling::bed_leveling() {
for (uint8_t i = 0; i <= UBL_MESH_NUM_X_POINTS; i++) // We go one past what we expect to ever need for safety
mesh_index_to_X_location[i] = double(UBL_MESH_MIN_X) + double(MESH_X_DIST) * double(i);
for (uint8_t i = 0; i <= UBL_MESH_NUM_Y_POINTS; i++) // We go one past what we expect to ever need for safety
mesh_index_to_Y_location[i] = double(UBL_MESH_MIN_Y) + double(MESH_Y_DIST) * double(i);
reset();
}
void bed_leveling::store_state() {
int k = E2END - sizeof(blm.state);
eeprom_write_block((void *)&blm.state, (void *)k, sizeof(blm.state));
}
void bed_leveling::load_state() {
int k = E2END - sizeof(blm.state);
eeprom_read_block((void *)&blm.state, (void *)k, sizeof(blm.state));
if (sanity_check())
SERIAL_PROTOCOLLNPGM("?In load_state() sanity_check() failed.\n");
// These lines can go away in a few weeks. They are just
// to make sure people updating thier firmware won't be using
if (blm.state.G29_Fade_Height_Multiplier != 1.0 / blm.state.G29_Correction_Fade_Height) { // an incomplete Bed_Leveling.state structure. For speed
blm.state.G29_Fade_Height_Multiplier = 1.0 / blm.state.G29_Correction_Fade_Height; // we now multiply by the inverse of the Fade Height instead of
store_state(); // dividing by it. Soon... all of the old structures will be
} // updated, but until then, we try to ease the transition
// for our Beta testers.
}
void bed_leveling::load_mesh(int m) {
int k = E2END - sizeof(blm.state),
j = (k - Unified_Bed_Leveling_EEPROM_start) / sizeof(z_values);
if (m == -1) {
SERIAL_PROTOCOLLNPGM("?No mesh saved in EEPROM. Zeroing mesh in memory.\n");
reset();
return;
}
if (m < 0 || m >= j || Unified_Bed_Leveling_EEPROM_start <= 0) {
SERIAL_PROTOCOLLNPGM("?EEPROM storage not available to load mesh.\n");
return;
}
j = k - (m + 1) * sizeof(z_values);
eeprom_read_block((void *)&z_values , (void *)j, sizeof(z_values));
SERIAL_PROTOCOLPGM("Mesh loaded from slot ");
SERIAL_PROTOCOL(m);
SERIAL_PROTOCOLPGM(" at offset 0x");
prt_hex_word(j);
SERIAL_EOL;
}
void bed_leveling:: store_mesh(int m) {
int k = E2END - sizeof(state),
j = (k - Unified_Bed_Leveling_EEPROM_start) / sizeof(z_values);
if (m < 0 || m >= j || Unified_Bed_Leveling_EEPROM_start <= 0) {
SERIAL_PROTOCOLLNPGM("?EEPROM storage not available to load mesh.\n");
SERIAL_PROTOCOL(m);
SERIAL_PROTOCOLLNPGM(" mesh slots available.\n");
SERIAL_PROTOCOLLNPAIR("E2END : ", E2END);
SERIAL_PROTOCOLLNPAIR("k : ", k);
SERIAL_PROTOCOLLNPAIR("j : ", j);
SERIAL_PROTOCOLLNPAIR("m : ", m);
SERIAL_EOL;
return;
}
j = k - (m + 1) * sizeof(z_values);
eeprom_write_block((const void *)&z_values, (void *)j, sizeof(z_values));
SERIAL_PROTOCOLPGM("Mesh saved in slot ");
SERIAL_PROTOCOL(m);
SERIAL_PROTOCOLPGM(" at offset 0x");
prt_hex_word(j);
SERIAL_EOL;
}
void bed_leveling::reset() {
state.active = false;
state.z_offset = 0;
state.EEPROM_storage_slot = -1;
ZERO(z_values);
last_specified_z = -999.9; // We can't pre-initialize these values in the declaration
fade_scaling_factor_for_current_height = 0.0; // due to C++11 constraints
}
void bed_leveling::invalidate() {
prt_hex_word((unsigned int)this);
SERIAL_EOL;
state.active = false;
state.z_offset = 0;
for (int x = 0; x < UBL_MESH_NUM_X_POINTS; x++)
for (int y = 0; y < UBL_MESH_NUM_Y_POINTS; y++)
z_values[x][y] = NAN;
}
void bed_leveling::display_map(int map_type) {
float f, current_xi, current_yi;
int8_t i, j;
UNUSED(map_type);
SERIAL_PROTOCOLLNPGM("\nBed Topography Report:\n");
SERIAL_ECHOPAIR("(", 0);
SERIAL_ECHOPAIR(", ", UBL_MESH_NUM_Y_POINTS - 1);
SERIAL_ECHOPGM(") ");
current_xi = blm.get_cell_index_x(current_position[X_AXIS] + (MESH_X_DIST) / 2.0);
current_yi = blm.get_cell_index_y(current_position[Y_AXIS] + (MESH_Y_DIST) / 2.0);
for (i = 0; i < UBL_MESH_NUM_X_POINTS - 1; i++)
SERIAL_ECHOPGM(" ");
SERIAL_ECHOPAIR("(", UBL_MESH_NUM_X_POINTS - 1);
SERIAL_ECHOPAIR(",", UBL_MESH_NUM_Y_POINTS - 1);
SERIAL_ECHOLNPGM(")");
// if (map_type || 1) {
SERIAL_ECHOPAIR("(", UBL_MESH_MIN_X);
SERIAL_ECHOPAIR(",", UBL_MESH_MAX_Y);
SERIAL_CHAR(')');
for (i = 0; i < UBL_MESH_NUM_X_POINTS - 1; i++)
SERIAL_ECHOPGM(" ");
SERIAL_ECHOPAIR("(", UBL_MESH_MAX_X);
SERIAL_ECHOPAIR(",", UBL_MESH_MAX_Y);
SERIAL_ECHOLNPGM(")");
// }
for (j = UBL_MESH_NUM_Y_POINTS - 1; j >= 0; j--) {
for (i = 0; i < UBL_MESH_NUM_X_POINTS; i++) {
f = z_values[i][j];
// is the nozzle here? if so, mark the number
SERIAL_CHAR(i == current_xi && j == current_yi ? '[' : ' ');
if (isnan(f))
SERIAL_PROTOCOLPGM(" . ");
else {
// if we don't do this, the columns won't line up nicely
if (f >= 0.0) SERIAL_CHAR(' ');
SERIAL_PROTOCOL_F(f, 5);
idle();
}
if (i == current_xi && j == current_yi) // is the nozzle here? if so, finish marking the number
SERIAL_CHAR(']');
else
SERIAL_PROTOCOL(" ");
SERIAL_CHAR(' ');
}
SERIAL_EOL;
if (j) { // we want the (0,0) up tight against the block of numbers
SERIAL_CHAR(' ');
SERIAL_EOL;
}
}
// if (map_type) {
SERIAL_ECHOPAIR("(", int(UBL_MESH_MIN_X));
SERIAL_ECHOPAIR(",", int(UBL_MESH_MIN_Y));
SERIAL_ECHOPGM(") ");
for (i = 0; i < UBL_MESH_NUM_X_POINTS - 1; i++)
SERIAL_ECHOPGM(" ");
SERIAL_ECHOPAIR("(", int(UBL_MESH_MAX_X));
SERIAL_ECHOPAIR(",", int(UBL_MESH_MIN_Y));
SERIAL_CHAR(')');
// }
SERIAL_ECHOPAIR("(", 0);
SERIAL_ECHOPAIR(",", 0);
SERIAL_ECHOPGM(") ");
for (i = 0; i < UBL_MESH_NUM_X_POINTS - 1; i++)
SERIAL_ECHOPGM(" ");
SERIAL_ECHOPAIR("(", UBL_MESH_NUM_X_POINTS-1);
SERIAL_ECHOPAIR(",", 0);
SERIAL_CHAR(')');
SERIAL_CHAR(' ');
SERIAL_EOL;
}
bool bed_leveling::sanity_check() {
uint8_t error_flag = 0;
if (state.n_x != UBL_MESH_NUM_X_POINTS) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_NUM_X_POINTS set wrong\n");
error_flag++;
}
if (state.n_y != UBL_MESH_NUM_Y_POINTS) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_NUM_Y_POINTS set wrong\n");
error_flag++;
}
if (state.mesh_x_min != UBL_MESH_MIN_X) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_MIN_X set wrong\n");
error_flag++;
}
if (state.mesh_y_min != UBL_MESH_MIN_Y) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_MIN_Y set wrong\n");
error_flag++;
}
if (state.mesh_x_max != UBL_MESH_MAX_X) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_MAX_X set wrong\n");
error_flag++;
}
if (state.mesh_y_max != UBL_MESH_MAX_Y) {
SERIAL_PROTOCOLLNPGM("?UBL_MESH_MAX_Y set wrong\n");
error_flag++;
}
if (state.mesh_x_dist != MESH_X_DIST) {
SERIAL_PROTOCOLLNPGM("?MESH_X_DIST set wrong\n");
error_flag++;
}
if (state.mesh_y_dist != MESH_Y_DIST) {
SERIAL_PROTOCOLLNPGM("?MESH_Y_DIST set wrong\n");
error_flag++;
}
int k = E2END - sizeof(blm.state),
j = (k - Unified_Bed_Leveling_EEPROM_start) / sizeof(z_values);
if (j < 1) {
SERIAL_PROTOCOLLNPGM("?No EEPROM storage available for a mesh of this size.\n");
error_flag++;
}
// SERIAL_PROTOCOLPGM("?sanity_check() return value: ");
// SERIAL_PROTOCOL(error_flag);
// SERIAL_EOL;
return !!error_flag;
}
#endif // AUTO_BED_LEVELING_UBL

1455
Marlin/UBL_G29.cpp Normal file
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553
Marlin/UBL_line_to_destination.cpp Normal file
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@ -0,0 +1,553 @@
/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "Marlin.h"
#if ENABLED(AUTO_BED_LEVELING_UBL)
#include "UBL.h"
#include "planner.h"
#include <avr/io.h>
#include <math.h>
extern void set_current_to_destination();
extern bool G26_Debug_flag;
void debug_current_and_destination(char *title);
void wait_for_button_press();
void UBL_line_to_destination(const float &x_end, const float &y_end, const float &z_end, const float &e_end, const float &feed_rate, uint8_t extruder) {
int cell_start_xi, cell_start_yi, cell_dest_xi, cell_dest_yi;
int left_flag, down_flag;
int current_xi, current_yi;
int dxi, dyi, xi_cnt, yi_cnt;
bool use_X_dist, inf_normalized_flag, inf_m_flag;
float x_start, y_start;
float x, y, z1, z2, z0 /*, z_optimized */;
float next_mesh_line_x, next_mesh_line_y, a0ma1diva2ma1;
float on_axis_distance, e_normalized_dist, e_position, e_start, z_normalized_dist, z_position, z_start;
float dx, dy, adx, ady, m, c;
//
// Much of the nozzle movement will be within the same cell. So we will do as little computation
// as possible to determine if this is the case. If this move is within the same cell, we will
// just do the required Z-Height correction, call the Planner's buffer_line() routine, and leave
//
x_start = current_position[X_AXIS];
y_start = current_position[Y_AXIS];
z_start = current_position[Z_AXIS];
e_start = current_position[E_AXIS];
cell_start_xi = blm.get_cell_index_x(x_start);
cell_start_yi = blm.get_cell_index_y(y_start);
cell_dest_xi = blm.get_cell_index_x(x_end);
cell_dest_yi = blm.get_cell_index_y(y_end);
if (G26_Debug_flag!=0) {
SERIAL_ECHOPGM(" UBL_line_to_destination(xe=");
SERIAL_ECHO(x_end);
SERIAL_ECHOPGM(",ye=");
SERIAL_ECHO(y_end);
SERIAL_ECHOPGM(",ze=");
SERIAL_ECHO(z_end);
SERIAL_ECHOPGM(",ee=");
SERIAL_ECHO(e_end);
SERIAL_ECHOPGM(")\n");
debug_current_and_destination( (char *) "Start of UBL_line_to_destination()");
}
if ((cell_start_xi == cell_dest_xi) && (cell_start_yi == cell_dest_yi)) { // if the whole move is within the same cell,
// we don't need to break up the move
//
// If we are moving off the print bed, we are going to allow the move at this level.
// But we detect it and isolate it. For now, we just pass along the request.
//
if (cell_dest_xi<0 || cell_dest_yi<0 || cell_dest_xi >= UBL_MESH_NUM_X_POINTS || cell_dest_yi >= UBL_MESH_NUM_Y_POINTS) {
// Note: There is no Z Correction in this case. We are off the grid and don't know what
// a reasonable correction would be.
planner.buffer_line(x_end, y_end, z_end + blm.state.z_offset, e_end, feed_rate, extruder);
set_current_to_destination();
if (G26_Debug_flag!=0) {
debug_current_and_destination( (char *) "out of bounds in UBL_line_to_destination()");
}
return;
}
// we can optimize some floating point operations here. We could call float get_z_correction(float x0, float y0) to
// generate the correction for us. But we can lighten the load on the CPU by doing a modified version of the function.
// We are going to only calculate the amount we are from the first mesh line towards the second mesh line once.
// We will use this fraction in both of the original two Z Height calculations for the bi-linear interpolation. And,
// instead of doing a generic divide of the distance, we know the distance is MESH_X_DIST so we can use the preprocessor
// to create a 1-over number for us. That will allow us to do a floating point multiply instead of a floating point divide.
FINAL_MOVE:
a0ma1diva2ma1 = (x_end - mesh_index_to_X_location[cell_dest_xi]) * (float) (1.0 / MESH_X_DIST);
z1 = z_values[cell_dest_xi][cell_dest_yi] +
(z_values[cell_dest_xi + 1][cell_dest_yi] - z_values[cell_dest_xi][cell_dest_yi]) * a0ma1diva2ma1;
z2 = z_values[cell_dest_xi][cell_dest_yi+1] +
(z_values[cell_dest_xi+1][cell_dest_yi+1] - z_values[cell_dest_xi][cell_dest_yi+1]) * a0ma1diva2ma1;
// we are done with the fractional X distance into the cell. Now with the two Z-Heights we have calculated, we
// are going to apply the Y-Distance into the cell to interpolate the final Z correction.
a0ma1diva2ma1 = (y_end - mesh_index_to_Y_location[cell_dest_yi]) * (float) (1.0 / MESH_Y_DIST);
z0 = z1 + (z2 - z1) * a0ma1diva2ma1;
// debug code to use non-optimized get_z_correction() and to do a sanity check
// that the correct value is being passed to planner.buffer_line()
//
/*
z_optimized = z0;
z0 = blm.get_z_correction( x_end, y_end);
if ( fabs(z_optimized - z0) > .01 || isnan(z0) || isnan(z_optimized) ) {
debug_current_and_destination( (char *) "FINAL_MOVE: z_correction()");
if ( isnan(z0) ) SERIAL_ECHO(" z0==NAN ");
if ( isnan(z_optimized) ) SERIAL_ECHO(" z_optimized==NAN ");
SERIAL_ECHOPAIR(" x_end=", x_end);
SERIAL_ECHOPAIR(" y_end=", y_end);
SERIAL_ECHOPAIR(" z0=", z0);
SERIAL_ECHOPAIR(" z_optimized=", z_optimized);
SERIAL_ECHOPAIR(" err=",fabs(z_optimized - z0));
SERIAL_EOL;
}
*/
z0 = z0 * blm.fade_scaling_factor_for_Z( z_end );
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
}
planner.buffer_line(x_end, y_end, z_end + z0 + blm.state.z_offset, e_end, feed_rate, extruder);
if (G26_Debug_flag!=0) {
debug_current_and_destination( (char *) "FINAL_MOVE in UBL_line_to_destination()");
}
set_current_to_destination();
return;
}
//
// If we get here, we are processing a move that crosses at least one Mesh Line. We will check
// for the simple case of just crossing X or just crossing Y Mesh Lines after we get all the details
// of the move figured out. We can process the easy case of just crossing an X or Y Mesh Line with less
// computation and in fact most lines are of this nature. We will check for that in the following
// blocks of code:
left_flag = 0;
down_flag = 0;
inf_m_flag = false;
inf_normalized_flag = false;
dx = x_end - x_start;
dy = y_end - y_start;
if (dx<0.0) { // figure out which way we need to move to get to the next cell
dxi = -1;
adx = -dx; // absolute value of dx. We already need to check if dx and dy are negative.
}
else { // We may as well generate the appropriate values for adx and ady right now
dxi = 1; // to save setting up the abs() function call and actually doing the call.
adx = dx;
}
if (dy<0.0) {
dyi = -1;
ady = -dy; // absolute value of dy
}
else {
dyi = 1;
ady = dy;
}
if (dx<0.0) left_flag = 1;
if (dy<0.0) down_flag = 1;
if (cell_start_xi == cell_dest_xi) dxi = 0;
if (cell_start_yi == cell_dest_yi) dyi = 0;
//
// Compute the scaling factor for the extruder for each partial move.
// We need to watch out for zero length moves because it will cause us to
// have an infinate scaling factor. We are stuck doing a floating point
// divide to get our scaling factor, but after that, we just multiply by this
// number. We also pick our scaling factor based on whether the X or Y
// component is larger. We use the biggest of the two to preserve precision.
//
if ( adx > ady ) {
use_X_dist = true;
on_axis_distance = x_end-x_start;
}
else {
use_X_dist = false;
on_axis_distance = y_end-y_start;
}
e_position = e_end - e_start;
e_normalized_dist = e_position / on_axis_distance;
z_position = z_end - z_start;
z_normalized_dist = z_position / on_axis_distance;
if (e_normalized_dist==INFINITY || e_normalized_dist==-INFINITY) {
inf_normalized_flag = true;
}
current_xi = cell_start_xi;
current_yi = cell_start_yi;
m = dy / dx;
c = y_start - m*x_start;
if (m == INFINITY || m == -INFINITY) {
inf_m_flag = true;
}
//
// This block handles vertical lines. These are lines that stay within the same
// X Cell column. They do not need to be perfectly vertical. They just can
// not cross into another X Cell column.
//
if (dxi == 0) { // Check for a vertical line
current_yi += down_flag; // Line is heading down, we just want to go to the bottom
while (current_yi != cell_dest_yi + down_flag) {
current_yi += dyi;
next_mesh_line_y = mesh_index_to_Y_location[current_yi];
if (inf_m_flag) {
x = x_start; // if the slope of the line is infinite, we won't do the calculations
}
// we know the next X is the same so we can recover and continue!
else {
x = (next_mesh_line_y - c) / m; // Calculate X at the next Y mesh line
}
z0 = blm.get_z_correction_along_horizontal_mesh_line_at_specific_X(x, current_xi, current_yi);
//
// debug code to use non-optimized get_z_correction() and to do a sanity check
// that the correct value is being passed to planner.buffer_line()
//
/*
z_optimized = z0;
z0 = blm.get_z_correction( x, next_mesh_line_y);
if ( fabs(z_optimized - z0) > .01 || isnan(z0) || isnan(z_optimized) ) {
debug_current_and_destination( (char *) "VERTICAL z_correction()");
if ( isnan(z0) ) SERIAL_ECHO(" z0==NAN ");
if ( isnan(z_optimized) ) SERIAL_ECHO(" z_optimized==NAN ");
SERIAL_ECHOPAIR(" x=", x);
SERIAL_ECHOPAIR(" next_mesh_line_y=", next_mesh_line_y);
SERIAL_ECHOPAIR(" z0=", z0);
SERIAL_ECHOPAIR(" z_optimized=", z_optimized);
SERIAL_ECHOPAIR(" err=",fabs(z_optimized-z0));
SERIAL_ECHO("\n");
}
*/
z0 = z0 * blm.fade_scaling_factor_for_Z( z_end );
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
}
y = mesh_index_to_Y_location[current_yi];
// Without this check, it is possible for the algorythm to generate a zero length move in the case
// where the line is heading down and it is starting right on a Mesh Line boundary. For how often that
// happens, it might be best to remove the check and always 'schedule' the move because
// the planner.buffer_line() routine will filter it if that happens.
if ( y!=y_start) {
if ( inf_normalized_flag == false ) {
on_axis_distance = y - y_start; // we don't need to check if the extruder position
e_position = e_start + on_axis_distance * e_normalized_dist; // is based on X or Y because this is a vertical move
z_position = z_start + on_axis_distance * z_normalized_dist;
}
else {
e_position = e_start;
z_position = z_start;
}
planner.buffer_line(x, y, z_position + z0 + blm.state.z_offset, e_position, feed_rate, extruder);
} //else printf("FIRST MOVE PRUNED ");
}
//
// Check if we are at the final destination. Usually, we won't be, but if it is on a Y Mesh Line, we are done.
//
if (G26_Debug_flag!=0) {
debug_current_and_destination( (char *) "vertical move done in UBL_line_to_destination()");
}
if (current_position[X_AXIS] != x_end || current_position[Y_AXIS] != y_end) {
goto FINAL_MOVE;
}
set_current_to_destination();
return;
}
//
// This block handles horizontal lines. These are lines that stay within the same
// Y Cell row. They do not need to be perfectly horizontal. They just can
// not cross into another Y Cell row.
//
if (dyi == 0) { // Check for a horiziontal line
current_xi += left_flag; // Line is heading left, we just want to go to the left
// edge of this cell for the first move.
while (current_xi != cell_dest_xi + left_flag) {
current_xi += dxi;
next_mesh_line_x = mesh_index_to_X_location[current_xi];
y = m * next_mesh_line_x + c; // Calculate X at the next Y mesh line
z0 = blm.get_z_correction_along_vertical_mesh_line_at_specific_Y(y, current_xi, current_yi);
//
// debug code to use non-optimized get_z_correction() and to do a sanity check
// that the correct value is being passed to planner.buffer_line()
//
/*
z_optimized = z0;
z0 = blm.get_z_correction( next_mesh_line_x, y);
if ( fabs(z_optimized - z0) > .01 || isnan(z0) || isnan(z_optimized) ) {
debug_current_and_destination( (char *) "HORIZONTAL z_correction()");
if ( isnan(z0) ) SERIAL_ECHO(" z0==NAN ");
if ( isnan(z_optimized) ) SERIAL_ECHO(" z_optimized==NAN ");
SERIAL_ECHOPAIR(" next_mesh_line_x=", next_mesh_line_x);
SERIAL_ECHOPAIR(" y=", y);
SERIAL_ECHOPAIR(" z0=", z0);
SERIAL_ECHOPAIR(" z_optimized=", z_optimized);
SERIAL_ECHOPAIR(" err=",fabs(z_optimized-z0));
SERIAL_ECHO("\n");
}
*/
z0 = z0 * blm.fade_scaling_factor_for_Z( z_end );
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
}
x = mesh_index_to_X_location[current_xi];
// Without this check, it is possible for the algorythm to generate a zero length move in the case
// where the line is heading left and it is starting right on a Mesh Line boundary. For how often
// that happens, it might be best to remove the check and always 'schedule' the move because
// the planner.buffer_line() routine will filter it if that happens.
if ( x!=x_start) {
if ( inf_normalized_flag == false ) {
on_axis_distance = x - x_start; // we don't need to check if the extruder position
e_position = e_start + on_axis_distance * e_normalized_dist; // is based on X or Y because this is a horizontal move
z_position = z_start + on_axis_distance * z_normalized_dist;
}
else {
e_position = e_start;
z_position = z_start;
}
planner.buffer_line(x, y, z_position + z0 + blm.state.z_offset, e_position, feed_rate, extruder);
} //else printf("FIRST MOVE PRUNED ");
}
if (G26_Debug_flag!=0) {
debug_current_and_destination( (char *) "horizontal move done in UBL_line_to_destination()");
}
if (current_position[X_AXIS] != x_end || current_position[Y_AXIS] != y_end) {
goto FINAL_MOVE;
}
set_current_to_destination();
return;
}
//
//
//
//
// This block handles the generic case of a line crossing both X and Y
// Mesh lines.
//
//
//
//
xi_cnt = cell_start_xi - cell_dest_xi;
if ( xi_cnt < 0 ) {
xi_cnt = -xi_cnt;
}
yi_cnt = cell_start_yi - cell_dest_yi;
if ( yi_cnt < 0 ) {
yi_cnt = -yi_cnt;
}
current_xi += left_flag;
current_yi += down_flag;
while ( xi_cnt>0 || yi_cnt>0 ) {
next_mesh_line_x = mesh_index_to_X_location[current_xi + dxi];
next_mesh_line_y = mesh_index_to_Y_location[current_yi + dyi];
y = m * next_mesh_line_x + c; // Calculate Y at the next X mesh line
x = (next_mesh_line_y-c) / m; // Calculate X at the next Y mesh line (we don't have to worry
// about m being equal to 0.0 If this was the case, we would have
// detected this as a vertical line move up above and we wouldn't
// be down here doing a generic type of move.
if ((left_flag && (x>next_mesh_line_x)) || (!left_flag && (x<next_mesh_line_x))) { // Check if we hit the Y line first
//
// Yes! Crossing a Y Mesh Line next
//
z0 = blm.get_z_correction_along_horizontal_mesh_line_at_specific_X(x, current_xi-left_flag, current_yi+dyi);
//
// debug code to use non-optimized get_z_correction() and to do a sanity check
// that the correct value is being passed to planner.buffer_line()
//
/*
z_optimized = z0;
z0 = blm.get_z_correction( x, next_mesh_line_y);
if ( fabs(z_optimized - z0) > .01 || isnan(z0) || isnan(z_optimized) ) {
debug_current_and_destination( (char *) "General_1: z_correction()");
if ( isnan(z0) ) SERIAL_ECHO(" z0==NAN ");
if ( isnan(z_optimized) ) SERIAL_ECHO(" z_optimized==NAN "); {
SERIAL_ECHOPAIR(" x=", x);
}
SERIAL_ECHOPAIR(" next_mesh_line_y=", next_mesh_line_y);
SERIAL_ECHOPAIR(" z0=", z0);
SERIAL_ECHOPAIR(" z_optimized=", z_optimized);
SERIAL_ECHOPAIR(" err=",fabs(z_optimized-z0));
SERIAL_ECHO("\n");
}
*/
z0 = z0 * blm.fade_scaling_factor_for_Z( z_end );
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
}
if ( inf_normalized_flag == false ) {
if ( use_X_dist ) {
on_axis_distance = x - x_start;
}
else {
on_axis_distance = next_mesh_line_y - y_start;
}
e_position = e_start + on_axis_distance * e_normalized_dist;
z_position = z_start + on_axis_distance * z_normalized_dist;
}
else {
e_position = e_start;
z_position = z_start;
}
planner.buffer_line(x, next_mesh_line_y, z_position + z0 + blm.state.z_offset, e_position, feed_rate, extruder);
current_yi += dyi;
yi_cnt--;
}
else {
//
// Yes! Crossing a X Mesh Line next
//
z0 = blm.get_z_correction_along_vertical_mesh_line_at_specific_Y(y, current_xi+dxi, current_yi-down_flag);
//
// debug code to use non-optimized get_z_correction() and to do a sanity check
// that the correct value is being passed to planner.buffer_line()
//
/*
z_optimized = z0;
z0 = blm.get_z_correction( next_mesh_line_x, y);
if ( fabs(z_optimized - z0) > .01 || isnan(z0) || isnan(z_optimized) ) {
debug_current_and_destination( (char *) "General_2: z_correction()");
if ( isnan(z0) ) SERIAL_ECHO(" z0==NAN ");
if ( isnan(z_optimized) ) SERIAL_ECHO(" z_optimized==NAN ");
SERIAL_ECHOPAIR(" next_mesh_line_x=", next_mesh_line_x);
SERIAL_ECHOPAIR(" y=", y);
SERIAL_ECHOPAIR(" z0=", z0);
SERIAL_ECHOPAIR(" z_optimized=", z_optimized);
SERIAL_ECHOPAIR(" err=",fabs(z_optimized-z0));
SERIAL_ECHO("\n");
}
*/
z0 = z0 * blm.fade_scaling_factor_for_Z( z_end );
if (isnan(z0)) { // if part of the Mesh is undefined, it will show up as NAN
z0 = 0.0; // in z_values[][] and propagate through the
// calculations. If our correction is NAN, we throw it out
// because part of the Mesh is undefined and we don't have the
// information we need to complete the height correction.
}
if ( inf_normalized_flag == false ) {
if ( use_X_dist ) {
on_axis_distance = next_mesh_line_x - x_start;
}
else {
on_axis_distance = y - y_start;
}
e_position = e_start + on_axis_distance * e_normalized_dist;
z_position = z_start + on_axis_distance * z_normalized_dist;
}
else {
e_position = e_start;
z_position = z_start;
}
planner.buffer_line(next_mesh_line_x, y, z_position + z0 + blm.state.z_offset, e_position, feed_rate, extruder);
current_xi += dxi;
xi_cnt--;
}
}
if (G26_Debug_flag) {
debug_current_and_destination( (char *) "generic move done in UBL_line_to_destination()");
}
if (current_position[0] != x_end || current_position[1] != y_end) {
goto FINAL_MOVE;
}
set_current_to_destination();
return;
}
void wait_for_button_press() {
// if ( !been_to_2_6 )
//return; // bob - I think this should be commented out
SET_INPUT_PULLUP(66); // Roxy's Left Switch is on pin 66. Right Switch is on pin 65
SET_OUTPUT(64);
while (READ(66) & 0x01) idle();
delay(50);
while (!(READ(66) & 0x01)) idle();
delay(50);
}
#endif

47
Marlin/hex_print_routines.cpp Normal file
View file

@ -0,0 +1,47 @@
/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "Marlin.h"
#if ENABLED(AUTO_BED_LEVELING_UBL) || ENABLED(M100_FREE_MEMORY_WATCHER)
#include "hex_print_routines.h"
void prt_hex_nibble(uint8_t n) {
if (n <= 9)
SERIAL_ECHO(n);
else
SERIAL_ECHO((char)('A' + n - 10));
delay(3);
}
void prt_hex_byte(uint8_t b) {
prt_hex_nibble((b & 0xF0) >> 4);
prt_hex_nibble(b & 0x0F);
}
void prt_hex_word(uint16_t w) {
prt_hex_byte((w & 0xFF00) >> 8);
prt_hex_byte(w & 0x0FF);
}
#endif // AUTO_BED_LEVELING_UBL || M100_FREE_MEMORY_WATCHER

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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef HEX_PRINT_ROUTINES_H
#define HEX_PRINT_ROUTINES_H
//
// 3 support routines to print hex numbers. We can print a nibble, byte and word
//
void prt_hex_nibble(uint8_t n);
void prt_hex_byte(uint8_t b);
void prt_hex_word(uint16_t w);
#endif // HEX_PRINT_ROUTINES_H