Fix code attempting to sprintf %f (#14869)

Arduino doesn't (always) support `float` formatting in strings. So either cast to `int` or use `dtostrf()` to fix these usages.

Marlin/src/feature/power_loss_recovery.cpp

@@ -332,8 +332,7 @@ void PrintJobRecovery::resume() {
     // Restore leveling state before 'G92 Z' to ensure
     // the Z stepper count corresponds to the native Z.
     if (info.fade || info.leveling) {
-      dtostrf(info.fade, 1, 1, str_1);
-      sprintf_P(cmd, PSTR("M420 S%i Z%s"), int(info.leveling), str_1);
+      sprintf_P(cmd, PSTR("M420 S%i Z%s"), int(info.leveling), dtostrf(info.fade, 1, 1, str_1));
       gcode.process_subcommands_now(cmd);
     }
   #endif
@@ -355,9 +354,10 @@ void PrintJobRecovery::resume() {
   #endif
 
   // Move back to the saved XY
-  dtostrf(info.current_position[X_AXIS], 1, 3, str_1);
-  dtostrf(info.current_position[Y_AXIS], 1, 3, str_2);
-  sprintf_P(cmd, PSTR("G1 X%s Y%s F3000"), str_1, str_2);
+  sprintf_P(cmd, PSTR("G1 X%s Y%s F3000"),
+    dtostrf(info.current_position[X_AXIS], 1, 3, str_1),
+    dtostrf(info.current_position[Y_AXIS], 1, 3, str_2)
+  );
   gcode.process_subcommands_now(cmd);
 
   // Move back to the saved Z
@@ -382,8 +382,7 @@ void PrintJobRecovery::resume() {
   gcode.process_subcommands_now(cmd);
 
   // Restore E position with G92.9
-  dtostrf(info.current_position[E_AXIS], 1, 3, str_1);
-  sprintf_P(cmd, PSTR("G92.9 E%s"), str_1);
+  sprintf_P(cmd, PSTR("G92.9 E%s"), dtostrf(info.current_position[E_AXIS], 1, 3, str_1));
   gcode.process_subcommands_now(cmd);
 
   // Relative mode

Marlin/src/gcode/calibrate/M48.cpp

@@ -252,8 +252,7 @@ void GcodeSuite::M48() {
     #if HAS_SPI_LCD
       // Display M48 results in the status bar
       char sigma_str[8];
-      dtostrf(sigma, 2, 6, sigma_str);
-      ui.status_printf_P(0, PSTR(MSG_M48_DEVIATION ": %s"), sigma_str);
+      ui.status_printf_P(0, PSTR(MSG_M48_DEVIATION ": %s"), dtostrf(sigma, 2, 6, sigma_str));
     #endif
   }
 

Marlin/src/gcode/feature/L6470/M906.cpp

@@ -101,8 +101,12 @@ void L6470_report_current(L6470 &motor, const uint8_t axis) {
   #endif
   sprintf_P(temp_buf, PSTR("\n...OverCurrent Threshold: %2d (%4d mA)"), overcurrent_threshold, (overcurrent_threshold + 1) * 375);
   SERIAL_ECHO(temp_buf);
-  sprintf_P(temp_buf, PSTR("   Stall Threshold: %2d (%7.2f mA)"), stall_threshold, (stall_threshold + 1) * 31.25);
+
+  char numstr[11];
+  dtostrf((stall_threshold + 1) * 31.25, 1, 2, numstr);
+  sprintf_P(temp_buf, PSTR("   Stall Threshold: %2d (%s mA)"), stall_threshold, numstr);
   SERIAL_ECHO(temp_buf);
+
   SERIAL_ECHOPGM("   Motor Status: ");
   const char * const stat_str;
   switch (motor_status) {
@@ -114,24 +118,42 @@ void L6470_report_current(L6470 &motor, const uint8_t axis) {
   }
   serialprintPGM(stat_str);
   SERIAL_EOL();
+
   SERIAL_ECHOPAIR("...microsteps: ", microsteps);
   SERIAL_ECHOPAIR("   ADC_OUT: ", adc_out);
   SERIAL_ECHOPGM("   Vs_compensation: ");
   serialprintPGM((motor.GetParam(L6470_CONFIG) & CONFIG_EN_VSCOMP) ? PSTR("ENABLED ") : PSTR("DISABLED"));
-  sprintf_P(temp_buf, PSTR("   Compensation coefficient: ~%4.2f\n"), comp_coef * 0.01f);
-  SERIAL_ECHO(temp_buf);
+
+  SERIAL_ECHOLNPGM("   Compensation coefficient: ", dtostrf(comp_coef * 0.01f, 7, 2, numstr));
   SERIAL_ECHOPAIR("...KVAL_HOLD: ", motor.GetParam(L6470_KVAL_HOLD));
   SERIAL_ECHOPAIR("   KVAL_RUN : ", motor.GetParam(L6470_KVAL_RUN));
   SERIAL_ECHOPAIR("   KVAL_ACC: ", motor.GetParam(L6470_KVAL_ACC));
   SERIAL_ECHOPAIR("   KVAL_DEC: ", motor.GetParam(L6470_KVAL_DEC));
   SERIAL_ECHOPGM("   V motor max =  ");
+  float val;
+  PGM_P suf;
   switch (motor_status) {
-    case 0: sprintf_P(temp_buf, PSTR(" %4.1f%% (KVAL_HOLD)\n"), float(motor.GetParam(L6470_KVAL_HOLD)) * 100 / 256); break;
-    case 1: sprintf_P(temp_buf, PSTR(" %4.1f%% (KVAL_RUN) \n"), float(motor.GetParam(L6470_KVAL_RUN)) * 100 / 256); break;
-    case 2: sprintf_P(temp_buf, PSTR(" %4.1f%% (KVAL_ACC) \n"), float(motor.GetParam(L6470_KVAL_ACC)) * 100 / 256); break;
-    case 3: sprintf_P(temp_buf, PSTR(" %4.1f%% (KVAL_DEC) \n"), float(motor.GetParam(L6470_KVAL_DEC)) * 100 / 256); break;
+    case 0:
+      val = motor.GetParam(L6470_KVAL_HOLD);
+      suf = PSTR("(KVAL_HOLD)");
+      break;
+    case 1:
+      val = motor.GetParam(L6470_KVAL_RUN);
+      suf = PSTR("(KVAL_RUN)");
+      break;
+    case 2:
+      val = motor.GetParam(L6470_KVAL_ACC);
+      suf = PSTR("(KVAL_ACC)");
+      break;
+    case 3:
+      val = motor.GetParam(L6470_KVAL_DEC);
+      suf = PSTR("(KVAL_DEC)");
+      break;
   }
-  SERIAL_ECHO(temp_buf);
+  SERIAL_ECHO(dtostrf(val * 100 / 256, 10, 2, numstr));
+  SERIAL_ECHO("%% ");
+  serialprintPGM(suf);
+  SERIAL_EOL();
 }
 
 void GcodeSuite::M906() {
@@ -150,7 +172,7 @@ void GcodeSuite::M906() {
     report_current = false;
 
     if (planner.has_blocks_queued() || planner.cleaning_buffer_counter) {
-      SERIAL_ECHOLNPGM("ERROR - can't set KVAL_HOLD while steppers are moving");
+      SERIAL_ECHOLNPGM("!Can't set KVAL_HOLD with steppers moving");
       return;
     }
 

Marlin/src/gcode/feature/L6470/M916-918.cpp

@@ -32,6 +32,19 @@
 #define DEBUG_OUT ENABLED(L6470_CHITCHAT)
 #include "../../../core/debug_out.h"
 
+static void jiggle_axis(const char axis_char, const float &min, const float &max, const float &rate) {
+  char gcode_string[30], str1[11], str2[11];
+
+  // Turn the motor(s) both directions
+  sprintf_P(gcode_string, PSTR("G0 %c%s F%s"), axis_char, dtostrf(min, 1, 3, str1), dtostrf(rate, 1, 3, str2));
+  process_subcommands_now(gcode_string);
+
+  sprintf_P(gcode_string, PSTR("G0 %c%s F%s"), axis_char, dtostrf(max, 1, 3, str1), str2);
+  process_subcommands_now(gcode_string);
+
+  planner.synchronize();
+}
+
 /**
  *
  * M916: Increase KVAL_HOLD until thermal warning
@@ -85,14 +98,11 @@ void GcodeSuite::M916() {
 
   DEBUG_ECHOLNPAIR("feedrate = ", final_feedrate);
 
-  planner.synchronize();                             // wait for all current movement commands to complete
+  planner.synchronize();                  // Wait for moves to finish
 
   for (j = 0; j < driver_count; j++)
-    L6470.get_status(axis_index[j]);  // clear out any pre-existing error flags
+    L6470.get_status(axis_index[j]);      // Clear out error flags
 
-  char temp_axis_string[] = " ";
-  temp_axis_string[0] = axis_mon[0][0];  // need to have a string for use within sprintf format section
-  char gcode_string[80];
   uint16_t status_composite = 0;
 
   DEBUG_ECHOLNPGM(".\n.");
@@ -104,15 +114,8 @@ void GcodeSuite::M916() {
     for (j = 0; j < driver_count; j++)
       L6470.set_param(axis_index[j], L6470_KVAL_HOLD, kval_hold);
 
-    // turn the motor(s) both directions
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f  F%4.3f"), temp_axis_string, position_min, final_feedrate);
-    process_subcommands_now(gcode_string);
-
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f  F%4.3f"), temp_axis_string, position_max, final_feedrate);
-    process_subcommands_now(gcode_string);
-
-    // get the status after the motors have stopped
-    planner.synchronize();
+    // Turn the motor(s) both directions
+    jiggle_axis(axis_mon[0][0], position_min, position_max, final_feedrate);
 
     status_composite = 0;    // clear out the old bits
 
@@ -201,12 +204,9 @@ void GcodeSuite::M917() {
 
   DEBUG_ECHOLNPAIR("feedrate = ", final_feedrate);
 
-  planner.synchronize();                             // wait for all current movement commands to complete
+  planner.synchronize();                // Wait for moves to finish
   for (j = 0; j < driver_count; j++)
-    L6470.get_status(axis_index[j]);  // clear out any pre-existing error flags
-  char temp_axis_string[] = " ";
-  temp_axis_string[0] = axis_mon[0][0];  // need to have a string for use within sprintf format section
-  char gcode_string[80];
+    L6470.get_status(axis_index[j]);    // Clear out error flags
   uint16_t status_composite = 0;
   uint8_t test_phase = 0;
         // 0 - decreasing OCD - exit when OCD warning occurs (ignore STALL)
@@ -225,13 +225,7 @@ void GcodeSuite::M917() {
     DEBUG_ECHOPAIR("STALL threshold : ", (stall_th_val + 1) * 31.25);
     DEBUG_ECHOLNPAIR("   OCD threshold : ", (ocd_th_val + 1) * 375);
 
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f  F%4.3f"), temp_axis_string, position_min, final_feedrate);
-    process_subcommands_now(gcode_string);
-
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f  F%4.3f"), temp_axis_string, position_max, final_feedrate);
-    process_subcommands_now(gcode_string);
-
-    planner.synchronize();
+    jiggle_axis(axis_mon[0][0], position_min, position_max, final_feedrate);
 
     status_composite = 0;    // clear out the old bits
 
@@ -500,30 +494,19 @@ void GcodeSuite::M918() {
   float feedrate_inc = final_feedrate / 10, // start at 1/10 of max & go up by 1/10 per step)
         current_feedrate = 0;
 
-  planner.synchronize();                  // wait for all current movement commands to complete
+  planner.synchronize();                  // Wait for moves to finish
 
   for (j = 0; j < driver_count; j++)
-    L6470.get_status(axis_index[j]);      // clear all error flags
+    L6470.get_status(axis_index[j]);      // Clear all error flags
 
-  char temp_axis_string[2];
-  temp_axis_string[0] = axis_mon[0][0];   // need to have a string for use within sprintf format section
-  temp_axis_string[1] = '\n';
-
-  char gcode_string[80];
   uint16_t status_composite = 0;
-  DEBUG_ECHOLNPGM(".\n.\n.");            // make the feedrate prints easier to see
+  DEBUG_ECHOLNPGM(".\n.\n.");             // Make the feedrate prints easier to see
 
   do {
     current_feedrate += feedrate_inc;
     DEBUG_ECHOLNPAIR("...feedrate = ", current_feedrate);
 
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f F%4.3f"), temp_axis_string, position_min, current_feedrate);
-    process_subcommands_now(gcode_string);
-
-    sprintf_P(gcode_string, PSTR("G0 %s%4.3f F%4.3f"), temp_axis_string, position_max, current_feedrate);
-    process_subcommands_now(gcode_string);
-
-    planner.synchronize();
+    jiggle_axis(axis_mon[0][0], position_min, position_max, current_feedrate);
 
     for (j = 0; j < driver_count; j++) {
       axis_status[j] = (~L6470.get_status(axis_index[j])) & 0x0800;    // bits of interest are all active low

Marlin/src/gcode/host/M114.cpp

@@ -42,7 +42,7 @@
       SERIAL_CHAR(' ');
       SERIAL_CHAR(axis_codes[i]);
       SERIAL_CHAR(':');
-      SERIAL_ECHO(dtostrf(pos[i], 8, precision, str));
+      SERIAL_ECHO(dtostrf(pos[i], 1, precision, str));
     }
     SERIAL_EOL();
   }

Marlin/src/lcd/dogm/status_screen_lite_ST7920.cpp

@@ -666,17 +666,14 @@ void ST7920_Lite_Status_Screen::draw_position(const float x, const float y, cons
   // If position is unknown, flash the labels.
   const unsigned char alt_label = position_known ? 0 : (ui.get_blink() ? ' ' : 0);
 
-  dtostrf(x, -4, 0, str);
   write_byte(alt_label ? alt_label : 'X');
-  write_str(str, 4);
+  write_str(dtostrf(x, -4, 0, str), 4);
 
-  dtostrf(y, -4, 0, str);
   write_byte(alt_label ? alt_label : 'Y');
-  write_str(str, 4);
+  write_str(dtostrf(y, -4, 0, str), 4);
 
-  dtostrf(z, -5, 1, str);
   write_byte(alt_label ? alt_label : 'Z');
-  write_str(str, 5);
+  write_str(dtostrf(z, -5, 1, str), 5);
 }
 
 bool ST7920_Lite_Status_Screen::indicators_changed() {

Marlin/src/lcd/extui_malyan_lcd.cpp

@@ -146,10 +146,10 @@ void process_lcd_eb_command(const char* command) {
 
       char message_buffer[MAX_CURLY_COMMAND];
       sprintf_P(message_buffer,
-        PSTR("{T0:%03.0f/%03i}{T1:000/000}{TP:%03.0f/%03i}{TQ:%03i}{TT:%s}"),
-        thermalManager.degHotend(0), thermalManager.degTargetHotend(0),
+        PSTR("{T0:%03i/%03i}{T1:000/000}{TP:%03i/%03i}{TQ:%03i}{TT:%s}"),
+        int(thermalManager.degHotend(0)), thermalManager.degTargetHotend(0),
         #if HAS_HEATED_BED
-          thermalManager.degBed(), thermalManager.degTargetBed(),
+          int(thermalManager.degBed()), thermalManager.degTargetBed(),
         #else
           0, 0,
         #endif
@@ -199,8 +199,8 @@ void process_lcd_j_command(const char* command) {
     case 'X': {
       // G0 <AXIS><distance>
       // The M200 class UI seems to send movement in .1mm values.
-      char cmd[20];
-      sprintf_P(cmd, PSTR("G1 %c%03.1f"), axis, atof(command + 1) / 10.0);
+      char cmd[20], pos[6];
+      sprintf_P(cmd, PSTR("G1 %c%s"), axis, dtostrf(atof(command + 1) / 10.0, -5, 3, pos));
       queue.enqueue_one_now(cmd);
     } break;
     default:
@@ -305,10 +305,10 @@ void process_lcd_s_command(const char* command) {
     case 'I': {
       // temperature information
       char message_buffer[MAX_CURLY_COMMAND];
-      sprintf_P(message_buffer, PSTR("{T0:%03.0f/%03i}{T1:000/000}{TP:%03.0f/%03i}"),
-        thermalManager.degHotend(0), thermalManager.degTargetHotend(0),
+      sprintf_P(message_buffer, PSTR("{T0:%03i/%03i}{T1:000/000}{TP:%03i/%03i}"),
+        int(thermalManager.degHotend(0)), thermalManager.degTargetHotend(0),
         #if HAS_HEATED_BED
-          thermalManager.degBed(), thermalManager.degTargetBed()
+          int(thermalManager.degBed()), thermalManager.degTargetBed()
         #else
           0, 0
         #endif

Marlin/src/lcd/menu/menu_motion.cpp

@@ -285,8 +285,7 @@ void _menu_move_distance(const AxisEnum axis, const screenFunc_t func, const int
         // Determine digits needed right of decimal
         const uint8_t digs = !UNEAR_ZERO((SHORT_MANUAL_Z_MOVE) * 1000 - int((SHORT_MANUAL_Z_MOVE) * 1000)) ? 4 :
                              !UNEAR_ZERO((SHORT_MANUAL_Z_MOVE) *  100 - int((SHORT_MANUAL_Z_MOVE) *  100)) ? 3 : 2;
-        dtostrf(SHORT_MANUAL_Z_MOVE, 1, digs, numstr);
-        sprintf_P(tmp, PSTR(MSG_MOVE_Z_DIST), numstr);
+        sprintf_P(tmp, PSTR(MSG_MOVE_Z_DIST), dtostrf(SHORT_MANUAL_Z_MOVE, 1, digs, numstr));
         LCDPRINT(tmp);
       MENU_ITEM_ADDON_END();
     }