Minor patches to POWER_LOSS_RECOVERY

Marlin/src/feature/power_loss_recovery.cpp

@@ -66,15 +66,20 @@ static char sd_filename[MAXPATHNAMELENGTH];
           if (e < HOTENDS - 1) SERIAL_CHAR(',');
         }
         SERIAL_EOL();
+
+        #if HAS_HEATED_BED
+          SERIAL_PROTOCOLLNPAIR("target_temperature_bed: ", job_recovery_info.target_temperature_bed);
+        #endif
+
+        #if FAN_COUNT
           SERIAL_PROTOCOLPGM("fanSpeeds: ");
-        for (uint8_t i = 0; i < FAN_COUNT; i++) {
+          for (int8_t i = 0; i < FAN_COUNT; i++) {
             SERIAL_PROTOCOL(job_recovery_info.fanSpeeds[i]);
             if (i < FAN_COUNT - 1) SERIAL_CHAR(',');
           }
           SERIAL_EOL();
-        #if HAS_HEATED_BED
-          SERIAL_PROTOCOLLNPAIR("target_temperature_bed: ", job_recovery_info.target_temperature_bed);
         #endif
+
         #if HAS_LEVELING
           SERIAL_PROTOCOLPAIR("leveling: ", int(job_recovery_info.leveling));
           SERIAL_PROTOCOLLNPAIR(" fade: ", int(job_recovery_info.fade));
@@ -180,7 +185,7 @@ void do_print_job_recovery() {
 }
 
 /**
- * Save the current machine state to the "bin" file
+ * Save the current machine state to the power-loss recovery file
  */
 void save_job_recovery_info() {
   #if SAVE_INFO_INTERVAL_MS > 0
@@ -209,10 +214,14 @@ void save_job_recovery_info() {
     COPY(job_recovery_info.current_position, current_position);
     job_recovery_info.feedrate = feedrate_mm_s;
     COPY(job_recovery_info.target_temperature, thermalManager.target_temperature);
+
     #if HAS_HEATED_BED
       job_recovery_info.target_temperature_bed = thermalManager.target_temperature_bed;
     #endif
+
+    #if FAN_COUNT
       COPY(job_recovery_info.fanSpeeds, fanSpeeds);
+    #endif
 
     #if HAS_LEVELING
       job_recovery_info.leveling = planner.leveling_active;

Marlin/src/feature/power_loss_recovery.h

@@ -40,13 +40,16 @@ typedef struct {
 
   // Machine state
   float current_position[NUM_AXIS], feedrate;
-  int16_t target_temperature[HOTENDS],
-          fanSpeeds[FAN_COUNT];
+  int16_t target_temperature[HOTENDS];
 
   #if HAS_HEATED_BED
     int16_t target_temperature_bed;
   #endif
 
+  #if FAN_COUNT
+    int16_t fanSpeeds[FAN_COUNT];
+  #endif
+
   #if HAS_LEVELING
     bool leveling;
     float fade;

Marlin/src/sd/cardreader.cpp

@@ -1016,7 +1016,7 @@ void CardReader::printingHasFinished() {
     const bool success = jobRecoveryFile.remove(&root, job_recovery_file_name);
     #if ENABLED(DEBUG_POWER_LOSS_RECOVERY)
       SERIAL_PROTOCOLPGM("Power-loss file delete");
-      serialprintPGM(success ? PSTR("d.") : PSTR(" failed."))
+      serialprintPGM(success ? PSTR("d.\n") : PSTR(" failed.\n"));
     #else
       UNUSED(success);
     #endif