Merge https://github.com/Sergey1560/Marlin_FB4S into Sergey1560-FB4S_WIFI

Marlin/Configuration_adv.h

@@ -1612,9 +1612,9 @@
   #define BABYSTEP_ALWAYS_AVAILABLE       // Allow babystepping at all times (not just during movement).
   //#define BABYSTEP_XY                     // Also enable X/Y Babystepping. Not supported on DELTA!
   #define BABYSTEP_INVERT_Z false           // Change if Z babysteps should go the other way
-  //#define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
+  #define BABYSTEP_MILLIMETER_UNITS       // Specify BABYSTEP_MULTIPLICATOR_(XY|Z) in mm instead of micro-steps
-  #define BABYSTEP_MULTIPLICATOR_Z  10       // (steps or mm) Steps or millimeter distance for each Z babystep
+  #define BABYSTEP_MULTIPLICATOR_Z  0.01       // (steps or mm) Steps or millimeter distance for each Z babystep
-  #define BABYSTEP_MULTIPLICATOR_XY 10       // (steps or mm) Steps or millimeter distance for each XY babystep
+  //#define BABYSTEP_MULTIPLICATOR_XY 0.01       // (steps or mm) Steps or millimeter distance for each XY babystep
 
   #define DOUBLECLICK_FOR_Z_BABYSTEPPING  // Double-click on the Status Screen for Z Babystepping.
   #if ENABLED(DOUBLECLICK_FOR_Z_BABYSTEPPING)

Marlin/src/MarlinCore.cpp

@@ -965,15 +965,19 @@ void setup() {
     #endif
   #endif
 
-    MYSERIAL0.begin(USB_BAUDRATE);
+  MYSERIAL0.begin(BAUDRATE);
-    uint32_t serial_connect_timeout = millis() + 1000UL;
+  uint32_t serial_connect_timeout = millis() + 1000UL;
-    while (!MYSERIAL0 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
+  while (!MYSERIAL0 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
-    #if HAS_MULTI_SERIAL
+  #if HAS_MULTI_SERIAL
-      MYSERIAL1.begin(BAUDRATE);
+	#if ENABLED(MKS_WIFI)
-      serial_connect_timeout = millis() + 1000UL;
+		MYSERIAL1.begin(MKS_WIFI_BAUDRATE);
-      while (!MYSERIAL1 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
+	#else
-    #endif
+		MYSERIAL1.begin(BAUDRATE);
-    SERIAL_ECHO_MSG("start");
+	#endif
+  serial_connect_timeout = millis() + 1000UL;
+  while (!MYSERIAL1 && PENDING(millis(), serial_connect_timeout)) { /*nada*/ }
+  #endif
+
 
   #if BOTH(HAS_TFT_LVGL_UI, USE_WIFI_FUNCTION)
     mks_esp_wifi_init();

Marlin/src/core/serial.h

@@ -58,7 +58,6 @@ extern uint8_t marlin_debug_flags;
   #else
     #define SERIAL_OUT(WHAT, V...) do{ \
       if (!serial_port_index || serial_port_index == SERIAL_BOTH) (void)MYSERIAL0.WHAT(V); \
-      if ( serial_port_index) (void)MYSERIAL1.WHAT(V); \
     }while(0)
   #endif
 
@@ -82,8 +81,14 @@ extern uint8_t marlin_debug_flags;
 #define SERIAL_ECHO(x)          SERIAL_OUT(print, x)
 #endif
 
+#if ENABLED(MKS_WIFI)
+#define SERIAL_ECHO_F(V...) do{ \
+    if (!serial_port_index || serial_port_index == SERIAL_BOTH ) SERIAL_OUT(print, V); \
+    if ( serial_port_index) mks_wifi_print_f(V); \
+}while(0)
+#else
 #define SERIAL_ECHO_F(V...)     SERIAL_OUT(print, V)
-
+#endif
 #if ENABLED(MKS_WIFI)
 #define SERIAL_ECHOLN(x) do{ \
     if (!serial_port_index || serial_port_index == SERIAL_BOTH )  SERIAL_OUT(println, x); \

Marlin/src/module/mks_wifi/mks_wifi_sd.cpp

@@ -199,6 +199,8 @@ void mks_wifi_start_file_upload(ESP_PROTOC_FRAME *packet){
 
    while(dma_timeout-- > 0){
 
+      iwdg_feed();
+
       if(DMA1->ISR & DMA_ISR_TCIF5){
          DMA1->IFCR = DMA_IFCR_CGIF5|DMA_IFCR_CTEIF5|DMA_IFCR_CHTIF5|DMA_IFCR_CTCIF5;
    

Marlin/src/module/mks_wifi/mks_wifi_serial_out.cpp

@@ -16,6 +16,15 @@ void mks_wifi_print_var(uint8_t count, ...){
     va_end(args);
 }
 
+void mks_wifi_print_f(float f,uint8_t size){
+	char str[20];
+	char format[10];
+	
+	sprintf(format,"%%0.%df",size);
+	sprintf(str,format,f);
+	mks_wifi_out_add((uint8_t *)str, strnlen((char *)str,ESP_PACKET_DATA_MAX_SIZE));
+}
+
 
 // PRINT functions
 
@@ -88,11 +97,6 @@ void mks_wifi_println(double f){
 	sprintf(str,"%.2f\n",f);
 	mks_wifi_out_add((uint8_t *)str, strnlen((char *)str,ESP_PACKET_DATA_MAX_SIZE));
 }
-/*
-void mks_wifi_println(int i){
-    mks_wifi_println((int32)i);
-}
-*/
 void mks_wifi_println(long int i){
     mks_wifi_println((int32)i);
 }

Marlin/src/module/mks_wifi/mks_wifi_serial_out.h

@@ -11,6 +11,8 @@
 
 void mks_wifi_print_var(uint8_t count, ...);
 
+void mks_wifi_print_f(float f,uint8_t size);
+
 void mks_wifi_print(const char *s);
 void mks_wifi_print(int32 i);
 void mks_wifi_print(uint32 i);

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO.h

@@ -279,6 +279,8 @@ BlTouch
 #define MKS_WIFI
 
 #ifdef MKS_WIFI
+
+ #define MKS_WIFI_BAUDRATE                  115200
  #undef PLATFORM_M997_SUPPORT
 
  #define MKS_WIFI_IO0                       PA8

Marlin/src/pins/stm32f1/pins_MKS_ROBIN_NANO_V2.h

@@ -439,6 +439,7 @@ https://easyeda.com/sst78rust/fb4s-led-control
 */
 #define MKS_WIFI
 #ifdef MKS_WIFI
+ #define MKS_WIFI_BAUDRATE                  115200
  #undef PLATFORM_M997_SUPPORT
 
  #define MKS_WIFI_IO0                       PC13