diff --git a/Marlin/src/HAL/STM32/HAL.h b/Marlin/src/HAL/STM32/HAL.h
index 2441c46eab..02bee57ba3 100644
--- a/Marlin/src/HAL/STM32/HAL.h
+++ b/Marlin/src/HAL/STM32/HAL.h
@@ -195,6 +195,7 @@ uint16_t HAL_adc_get_result();
 #ifdef STM32F1xx
   #define JTAG_DISABLE() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_JTAGDISABLE)
   #define JTAGSWD_DISABLE() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_DISABLE)
+  #define JTAGSWD_RESET() AFIO_DBGAFR_CONFIG(AFIO_MAPR_SWJ_CFG_RESET); // Reset: FULL SWD+JTAG
 #endif
 
 #define PLATFORM_M997_SUPPORT
diff --git a/Marlin/src/MarlinCore.cpp b/Marlin/src/MarlinCore.cpp
index 54598e035a..78c97cf3a3 100644
--- a/Marlin/src/MarlinCore.cpp
+++ b/Marlin/src/MarlinCore.cpp
@@ -1126,6 +1126,7 @@ void setup() {
   #endif
 
   #if HAS_FREEZE_PIN
+    SETUP_LOG("FREEZE_PIN");
     SET_INPUT_PULLUP(FREEZE_PIN);
   #endif
 
@@ -1134,11 +1135,19 @@ void setup() {
     OUT_WRITE(SUICIDE_PIN, !SUICIDE_PIN_INVERTING);
   #endif
 
+  #ifdef JTAGSWD_RESET
+    SETUP_LOG("JTAGSWD_RESET");
+    JTAGSWD_RESET();
+  #endif
+
   #if EITHER(DISABLE_DEBUG, DISABLE_JTAG)
+    delay(10);
     // Disable any hardware debug to free up pins for IO
     #if ENABLED(DISABLE_DEBUG) && defined(JTAGSWD_DISABLE)
+      SETUP_LOG("JTAGSWD_DISABLE");
       JTAGSWD_DISABLE();
     #elif defined(JTAG_DISABLE)
+      SETUP_LOG("JTAG_DISABLE");
       JTAG_DISABLE();
     #else
       #error "DISABLE_(DEBUG|JTAG) is not supported for the selected MCU/Board."
diff --git a/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h b/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
index 27aa84e44f..9b71570b08 100644
--- a/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
+++ b/Marlin/src/pins/stm32f1/pins_BTT_SKR_E3_DIP.h
@@ -288,3 +288,4 @@
 
 #define ONBOARD_SPI_DEVICE                     1  // SPI1
 #define ONBOARD_SD_CS_PIN                   PA4   // Chip select for "System" SD card
+#define SDSS                   ONBOARD_SD_CS_PIN