diff --git a/Marlin/Configuration_adv.h b/Marlin/Configuration_adv.h
index 7c8f2da948c6..e6b76a4133c1 100644
--- a/Marlin/Configuration_adv.h
+++ b/Marlin/Configuration_adv.h
@@ -1186,6 +1186,8 @@
//#define SD_IGNORE_AT_STARTUP // Don't mount the SD card when starting up
//#define SDCARD_READONLY // Read-only SD card (to save over 2K of flash)
+ //#define GCODE_REPEAT_MARKERS // Enable G-code M808 to set repeat markers and do looping
+
#define SD_PROCEDURE_DEPTH 1 // Increase if you need more nested M32 calls
#define SD_FINISHED_STEPPERRELEASE true // Disable steppers when SD Print is finished
diff --git a/Marlin/src/MarlinCore.cpp b/Marlin/src/MarlinCore.cpp
index 5769da05d0f2..b6282cb09835 100644
--- a/Marlin/src/MarlinCore.cpp
+++ b/Marlin/src/MarlinCore.cpp
@@ -173,6 +173,10 @@
#include "feature/pause.h"
#endif
+#if ENABLED(GCODE_REPEAT_MARKERS)
+ #include "feature/repeat.h"
+#endif
+
#if ENABLED(POWER_LOSS_RECOVERY)
#include "feature/powerloss.h"
#endif
@@ -435,6 +439,7 @@ bool printingIsPaused() {
void startOrResumeJob() {
if (!printingIsPaused()) {
+ TERN_(GCODE_REPEAT_MARKERS, repeat.reset());
TERN_(CANCEL_OBJECTS, cancelable.reset());
TERN_(LCD_SHOW_E_TOTAL, e_move_accumulator = 0);
#if BOTH(LCD_SET_PROGRESS_MANUALLY, USE_M73_REMAINING_TIME)
diff --git a/Marlin/src/feature/powerloss.cpp b/Marlin/src/feature/powerloss.cpp
index c4e0ef694abe..c55b278a724a 100644
--- a/Marlin/src/feature/powerloss.cpp
+++ b/Marlin/src/feature/powerloss.cpp
@@ -182,6 +182,8 @@ void PrintJobRecovery::save(const bool force/*=false*/, const float zraise/*=0*/
info.current_position = current_position;
info.feedrate = uint16_t(feedrate_mm_s * 60.0f);
info.zraise = zraise;
+
+ TERN_(GCODE_REPEAT_MARKERS, info.stored_repeat = repeat);
TERN_(HAS_HOME_OFFSET, info.home_offset = home_offset);
TERN_(HAS_POSITION_SHIFT, info.position_shift = position_shift);
@@ -507,6 +509,7 @@ void PrintJobRecovery::resume() {
sprintf_P(cmd, PSTR("G92.9 E%s"), dtostrf(info.current_position.e, 1, 3, str_1));
gcode.process_subcommands_now(cmd);
+ TERN_(GCODE_REPEAT_MARKERS, repeat = info.stored_repeat);
TERN_(HAS_HOME_OFFSET, home_offset = info.home_offset);
TERN_(HAS_POSITION_SHIFT, position_shift = info.position_shift);
#if HAS_HOME_OFFSET || HAS_POSITION_SHIFT
diff --git a/Marlin/src/feature/powerloss.h b/Marlin/src/feature/powerloss.h
index 73cd0b70faf4..f964f122941f 100644
--- a/Marlin/src/feature/powerloss.h
+++ b/Marlin/src/feature/powerloss.h
@@ -30,6 +30,10 @@
#include "../inc/MarlinConfig.h"
+#if ENABLED(GCODE_REPEAT_MARKERS)
+ #include "../feature/repeat.h"
+#endif
+
#if ENABLED(MIXING_EXTRUDER)
#include "../feature/mixing.h"
#endif
@@ -50,6 +54,8 @@ typedef struct {
uint16_t feedrate;
float zraise;
+ // Repeat information
+ TERN_(GCODE_REPEAT_MARKERS, Repeat stored_repeat);
TERN_(HAS_HOME_OFFSET, xyz_pos_t home_offset);
TERN_(HAS_POSITION_SHIFT, xyz_pos_t position_shift);
diff --git a/Marlin/src/feature/repeat.cpp b/Marlin/src/feature/repeat.cpp
new file mode 100644
index 000000000000..d48157a84d41
--- /dev/null
+++ b/Marlin/src/feature/repeat.cpp
@@ -0,0 +1,81 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 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 .
+ *
+ */
+#include "../inc/MarlinConfig.h"
+
+#if ENABLED(GCODE_REPEAT_MARKERS)
+
+//#define DEBUG_GCODE_REPEAT_MARKERS
+
+#include "repeat.h"
+
+#include "../gcode/gcode.h"
+#include "../sd/cardreader.h"
+
+#define DEBUG_OUT ENABLED(DEBUG_GCODE_REPEAT_MARKERS)
+#include "../core/debug_out.h"
+
+repeat_marker_t Repeat::marker[MAX_REPEAT_NESTING];
+uint8_t Repeat::index;
+
+void Repeat::add_marker(const uint32_t sdpos, const uint16_t count) {
+ if (index >= MAX_REPEAT_NESTING)
+ SERIAL_ECHO_MSG("!Too many markers.");
+ else {
+ marker[index].sdpos = sdpos;
+ marker[index].counter = count ?: -1;
+ index++;
+ DEBUG_ECHOLNPAIR("Add Marker ", int(index), " at ", sdpos, " (", count, ")");
+ }
+}
+
+void Repeat::loop() {
+ if (!index) // No marker?
+ SERIAL_ECHO_MSG("!No marker set."); // Inform the user.
+ else {
+ const uint8_t ind = index - 1; // Active marker's index
+ if (!marker[ind].counter) { // Did its counter run out?
+ DEBUG_ECHOLNPAIR("Pass Marker ", int(index));
+ index--; // Carry on. Previous marker on the next 'M808'.
+ }
+ else {
+ card.setIndex(marker[ind].sdpos); // Loop back to the marker.
+ if (marker[ind].counter > 0) // Ignore a negative (or zero) counter.
+ --marker[ind].counter; // Decrement the counter. If zero this 'M808' will be skipped next time.
+ DEBUG_ECHOLNPAIR("Goto Marker ", int(index), " at ", marker[ind].sdpos, " (", marker[ind].counter, ")");
+ }
+ }
+}
+
+void Repeat::cancel() { LOOP_L_N(i, index) marker[i].counter = 0; }
+
+void Repeat::early_parse_M808(char * const cmd) {
+ if (is_command_M808(cmd)) {
+ DEBUG_ECHOLNPAIR("Parsing \"", cmd, "\"");
+ parser.parse(cmd);
+ if (parser.seen('L'))
+ add_marker(card.getIndex(), parser.value_ushort());
+ else
+ Repeat::loop();
+ }
+}
+
+#endif // GCODE_REPEAT_MARKERS
diff --git a/Marlin/src/feature/repeat.h b/Marlin/src/feature/repeat.h
new file mode 100644
index 000000000000..e293b2bbacb4
--- /dev/null
+++ b/Marlin/src/feature/repeat.h
@@ -0,0 +1,49 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 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 .
+ *
+ */
+#pragma once
+
+#include "../inc/MarlinConfigPre.h"
+#include "../gcode/parser.h"
+
+#include
+
+#define MAX_REPEAT_NESTING 10
+
+typedef struct {
+ uint32_t sdpos; // The repeat file position
+ int16_t counter; // The counter for looping
+} repeat_marker_t;
+
+class Repeat {
+private:
+ static repeat_marker_t marker[MAX_REPEAT_NESTING];
+ static uint8_t index;
+public:
+ static inline void reset() { index = 0; }
+ static bool is_command_M808(char * const cmd) { return cmd[0] == 'M' && cmd[1] == '8' && cmd[2] == '0' && cmd[3] == '8' && !NUMERIC(cmd[4]); }
+ static void early_parse_M808(char * const cmd);
+ static void add_marker(const uint32_t sdpos, const uint16_t count);
+ static void loop();
+ static void cancel();
+};
+
+extern Repeat repeat;
diff --git a/Marlin/src/gcode/gcode.cpp b/Marlin/src/gcode/gcode.cpp
index 2a899b73b0ba..89bc0dc7af60 100644
--- a/Marlin/src/gcode/gcode.cpp
+++ b/Marlin/src/gcode/gcode.cpp
@@ -883,6 +883,10 @@ void GcodeSuite::process_parsed_command(const bool no_ok/*=false*/) {
case 800: parser.debug(); break; // M800: GCode Parser Test for M
#endif
+ #if ENABLED(GCODE_REPEAT_MARKERS)
+ case 808: M808(); break; // M808: Set / Goto repeat markers
+ #endif
+
#if ENABLED(I2C_POSITION_ENCODERS)
case 860: M860(); break; // M860: Report encoder module position
case 861: M861(); break; // M861: Report encoder module status
diff --git a/Marlin/src/gcode/gcode.h b/Marlin/src/gcode/gcode.h
index 1d74ac371960..735456a533b3 100644
--- a/Marlin/src/gcode/gcode.h
+++ b/Marlin/src/gcode/gcode.h
@@ -242,6 +242,7 @@
* M672 - Set/Reset Duet Smart Effector's sensitivity. (Requires DUET_SMART_EFFECTOR and SMART_EFFECTOR_MOD_PIN)
* M701 - Load filament (Requires FILAMENT_LOAD_UNLOAD_GCODES)
* M702 - Unload filament (Requires FILAMENT_LOAD_UNLOAD_GCODES)
+ * M808 - Set or Goto a Repeat Marker (Requires GCODE_REPEAT_MARKERS)
* M810-M819 - Define/execute a G-code macro (Requires GCODE_MACROS)
* M851 - Set Z probe's XYZ offsets in current units. (Negative values: X=left, Y=front, Z=below)
* M852 - Set skew factors: "M852 [I] [J] [K]". (Requires SKEW_CORRECTION_GCODE, and SKEW_CORRECTION_FOR_Z for IJ)
@@ -807,6 +808,8 @@ class GcodeSuite {
static void M702();
#endif
+ TERN_(GCODE_REPEAT_MARKERS, static void M808());
+
TERN_(GCODE_MACROS, static void M810_819());
TERN_(HAS_BED_PROBE, static void M851());
diff --git a/Marlin/src/gcode/host/M115.cpp b/Marlin/src/gcode/host/M115.cpp
index 529b1dd6d012..63511b606d16 100644
--- a/Marlin/src/gcode/host/M115.cpp
+++ b/Marlin/src/gcode/host/M115.cpp
@@ -117,6 +117,9 @@ void GcodeSuite::M115() {
// SDCARD (M20, M23, M24, etc.)
cap_line(PSTR("SDCARD"), ENABLED(SDSUPPORT));
+ // REPEAT (M808)
+ cap_line(PSTR("REPEAT"), ENABLED(GCODE_REPEAT_MARKERS));
+
// AUTOREPORT_SD_STATUS (M27 extension)
cap_line(PSTR("AUTOREPORT_SD_STATUS"), ENABLED(AUTO_REPORT_SD_STATUS));
diff --git a/Marlin/src/gcode/queue.cpp b/Marlin/src/gcode/queue.cpp
index ba2cdf35b11c..d23e9ee07fc3 100644
--- a/Marlin/src/gcode/queue.cpp
+++ b/Marlin/src/gcode/queue.cpp
@@ -51,6 +51,10 @@ GCodeQueue queue;
#include "../feature/powerloss.h"
#endif
+#if ENABLED(GCODE_REPEAT_MARKERS)
+ #include "../feature/repeat.h"
+#endif
+
/**
* GCode line number handling. Hosts may opt to include line numbers when
* sending commands to Marlin, and lines will be checked for sequentiality.
@@ -577,10 +581,9 @@ void GCodeQueue::get_serial_commands() {
if (!IS_SD_PRINTING()) return;
int sd_count = 0;
- bool card_eof = card.eof();
- while (length < BUFSIZE && !card_eof) {
+ while (length < BUFSIZE && !card.eof()) {
const int16_t n = card.get();
- card_eof = card.eof();
+ const bool card_eof = card.eof();
if (n < 0 && !card_eof) { SERIAL_ERROR_MSG(STR_SD_ERR_READ); continue; }
const char sd_char = (char)n;
@@ -590,17 +593,21 @@ void GCodeQueue::get_serial_commands() {
// Reset stream state, terminate the buffer, and commit a non-empty command
if (!is_eol && sd_count) ++sd_count; // End of file with no newline
if (!process_line_done(sd_input_state, command_buffer[index_w], sd_count)) {
+
+ // M808 S saves the sdpos of the next line. M808 loops to a new sdpos.
+ TERN_(GCODE_REPEAT_MARKERS, repeat.early_parse_M808(command_buffer[index_w]));
+
+ // Put the new command into the buffer (no "ok" sent)
_commit_command(false);
- #if ENABLED(POWER_LOSS_RECOVERY)
- recovery.cmd_sdpos = card.getIndex(); // Prime for the NEXT _commit_command
- #endif
+
+ // Prime Power-Loss Recovery for the NEXT _commit_command
+ TERN_(POWER_LOSS_RECOVERY, recovery.cmd_sdpos = card.getIndex());
}
- if (card_eof) card.fileHasFinished(); // Handle end of file reached
+ if (card.eof()) card.fileHasFinished(); // Handle end of file reached
}
else
process_stream_char(sd_char, sd_input_state, command_buffer[index_w], sd_count);
-
}
}
diff --git a/Marlin/src/gcode/sd/M808.cpp b/Marlin/src/gcode/sd/M808.cpp
new file mode 100644
index 000000000000..0d11b16f8ae2
--- /dev/null
+++ b/Marlin/src/gcode/sd/M808.cpp
@@ -0,0 +1,51 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 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 .
+ *
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(GCODE_REPEAT_MARKERS)
+
+#include "../gcode.h"
+#include "../../feature/repeat.h"
+
+/**
+ * M808: Set / Goto a repeat marker
+ *
+ * L - Set a repeat marker with 'count' repetitions. If omitted, infinity.
+ *
+ * Examples:
+ *
+ * M808 L ; Set a loop marker with a count of infinity
+ * M808 L2 ; Set a loop marker with a count of 2
+ * M808 ; Decrement and loop if not zero.
+ */
+void GcodeSuite::M808() {
+
+ // Handled early and ignored here in the queue.
+ // Allowed to go into the queue for logging purposes.
+
+ // M808 K sent from the host to cancel all loops
+ if (parser.seen('K')) repeat.cancel();
+
+}
+
+#endif // GCODE_REPEAT_MARKERS
diff --git a/Marlin/src/sd/cardreader.cpp b/Marlin/src/sd/cardreader.cpp
index 4416f4e90792..bce84bbd3921 100644
--- a/Marlin/src/sd/cardreader.cpp
+++ b/Marlin/src/sd/cardreader.cpp
@@ -699,8 +699,7 @@ void CardReader::removeFile(const char * const name) {
void CardReader::report_status() {
if (isPrinting()) {
- SERIAL_ECHOPGM(STR_SD_PRINTING_BYTE);
- SERIAL_ECHO(sdpos);
+ SERIAL_ECHOPAIR(STR_SD_PRINTING_BYTE, sdpos);
SERIAL_CHAR('/');
SERIAL_ECHOLN(filesize);
}
diff --git a/Marlin/src/sd/cardreader.h b/Marlin/src/sd/cardreader.h
index c6fe37400c2d..dabbf719f92b 100644
--- a/Marlin/src/sd/cardreader.h
+++ b/Marlin/src/sd/cardreader.h
@@ -159,9 +159,9 @@ class CardReader {
static inline uint32_t getIndex() { return sdpos; }
static inline uint32_t getFileSize() { return filesize; }
static inline bool eof() { return sdpos >= filesize; }
- static inline void setIndex(const uint32_t index) { sdpos = index; file.seekSet(index); }
+ static inline void setIndex(const uint32_t index) { file.seekSet((sdpos = index)); }
static inline char* getWorkDirName() { workDir.getDosName(filename); return filename; }
- static inline int16_t get() { sdpos = file.curPosition(); return (int16_t)file.read(); }
+ static inline int16_t get() { int16_t out = (int16_t)file.read(); sdpos = file.curPosition(); return out; }
static inline int16_t read(void* buf, uint16_t nbyte) { return file.isOpen() ? file.read(buf, nbyte) : -1; }
static inline int16_t write(void* buf, uint16_t nbyte) { return file.isOpen() ? file.write(buf, nbyte) : -1; }
@@ -244,7 +244,8 @@ class CardReader {
static SdVolume volume;
static SdFile file;
- static uint32_t filesize, sdpos;
+ static uint32_t filesize, // Total size of the current file, in bytes
+ sdpos; // Index most recently read (one behind file.getPos)
//
// Procedure calls to other files
diff --git a/buildroot/test-gcode/M808-loops.gcode b/buildroot/test-gcode/M808-loops.gcode
new file mode 100644
index 000000000000..6248c9cc3146
--- /dev/null
+++ b/buildroot/test-gcode/M808-loops.gcode
@@ -0,0 +1,16 @@
+;
+; M808 Repeat Marker Test
+;
+
+M808 L3 ; Marker at 54
+
+M118 Outer Loop
+M300 S220 P100
+
+M808 L5 ; Marker at 111
+
+M118 Inner Loop
+M300 S110 P100
+
+M808
+M808
diff --git a/buildroot/tests/mega2560-tests b/buildroot/tests/mega2560-tests
index a968a5d21316..da3a79f58cb4 100755
--- a/buildroot/tests/mega2560-tests
+++ b/buildroot/tests/mega2560-tests
@@ -107,7 +107,7 @@ restore_configs
opt_set MOTHERBOARD BOARD_MEGACONTROLLER
opt_set LCD_LANGUAGE de
opt_enable EEPROM_SETTINGS EEPROM_CHITCHAT \
- MINIPANEL SDSUPPORT PCA9632 LCD_INFO_MENU SOUND_MENU_ITEM \
+ MINIPANEL SDSUPPORT PCA9632 LCD_INFO_MENU SOUND_MENU_ITEM GCODE_REPEAT_MARKERS \
AUTO_BED_LEVELING_BILINEAR PROBE_MANUALLY LCD_BED_LEVELING G26_MESH_VALIDATION MESH_EDIT_MENU \
LIN_ADVANCE EXTRA_LIN_ADVANCE_K \
INCH_MODE_SUPPORT TEMPERATURE_UNITS_SUPPORT EXPERIMENTAL_I2CBUS M100_FREE_MEMORY_WATCHER \
diff --git a/platformio.ini b/platformio.ini
index 062514c882e5..52310e6b8198 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -101,6 +101,7 @@ default_src_filter = + - - +
- -
- -
-
+ -
- -
- -
- -
@@ -182,6 +183,7 @@ default_src_filter = + - - +
-
-
-
+ -
-
-
-
@@ -374,6 +376,7 @@ G38_PROBE_TARGET = src_filter=+
MAGNETIC_PARKING_EXTRUDER = src_filter=+
SDSUPPORT = src_filter=+
HAS_MEDIA_SUBCALLS = src_filter=+
+GCODE_REPEAT_MARKERS = src_filter=+ +
HAS_EXTRUDERS = src_filter=+ +
AUTO_REPORT_TEMPERATURES = src_filter=+
INCH_MODE_SUPPORT = src_filter=+
@@ -402,7 +405,7 @@ framework = arduino
extra_scripts = ${common.extra_scripts}
build_flags = ${common.build_flags}
lib_deps = ${common.lib_deps}
-monitor_speed = 250000
+monitor_speed = 115200
monitor_flags =
--quiet
--echo