diff --git a/Marlin/src/HAL/HC32F46x/MarlinHAL.h b/Marlin/src/HAL/HC32F46x/MarlinHAL.h
index 88d1bfcc909c..05317a0138fc 100644
--- a/Marlin/src/HAL/HC32F46x/MarlinHAL.h
+++ b/Marlin/src/HAL/HC32F46x/MarlinHAL.h
@@ -1,4 +1,3 @@
-
 #pragma once
 
 #include <stdint.h>
@@ -74,5 +73,7 @@ class MarlinHAL
 
 // M997: trigger firmware update from sd card (after upload)
 // on HC32F46x, a reboot is enough to do this
-#define PLATFORM_M997_SUPPORT
+#ifndef PLATFORM_M997_SUPPORT
+  #define PLATFORM_M997_SUPPORT
+#endif
 void flashFirmware(const int16_t);
diff --git a/Marlin/src/HAL/HC32F46x/endstop_interrupts.cpp b/Marlin/src/HAL/HC32F46x/endstop_interrupts.cpp
index a26fa66558df..fdc2b09b1d8d 100644
--- a/Marlin/src/HAL/HC32F46x/endstop_interrupts.cpp
+++ b/Marlin/src/HAL/HC32F46x/endstop_interrupts.cpp
@@ -2,11 +2,6 @@
 #include "../../module/endstops.h"
 #include "interrupts.h"
 
-// Z_MIN_PROBE does not follow the same naming as all other pins...
-#if HAS_Z_MIN_PROBE_PIN && !defined(HAS_Z_MIN_PROBE)
-#define HAS_Z_MIN_PROBE
-#endif
-
 //
 // IRQ handler
 //
@@ -15,7 +10,7 @@ void endstopIRQHandler()
     bool flag = false;
 
 // check all irq flags
-#define CHECK(name) TERN_(HAS_##name, flag |= checkAndClearExtIRQFlag(name##_PIN))
+#define CHECK(name) TERN_(USE_##name, flag |= checkAndClearExtIRQFlag(name##_PIN))
 
     CHECK(X_MAX);
     CHECK(X_MIN);
@@ -46,7 +41,7 @@ void endstopIRQHandler()
 //
 void setup_endstop_interrupts()
 {
-#define SETUP(name) TERN_(HAS_##name, attachInterrupt(name##_PIN, endstopIRQHandler, CHANGE))
+#define SETUP(name) TERN_(USE_##name, attachInterrupt(name##_PIN, endstopIRQHandler, CHANGE))
 
     SETUP(X_MAX);
     SETUP(X_MIN);
@@ -68,6 +63,10 @@ void setup_endstop_interrupts()
 
 // ensure max. 10 irqs are registered
 // if you encounter this error, you'll have to disable some endstops
-#if HAS_X_MAX && HAS_X_MIN && HAS_Y_MAX && HAS_Y_MIN && HAS_Z_MAX && HAS_Z_MIN && HAS_Z2_MAX && HAS_Z2_MIN && HAS_Z3_MAX && HAS_Z3_MIN && HAS_MIN_Z_PROBE
-#error "too many endstop interrupts! HC32F46x only supports 10 endstop interrupts."
+#define ENDSTOPS_INTERRUPTS_COUNT COUNT_ENABLED(USE_X_MAX, USE_X_MIN, USE_Y_MAX, USE_Y_MIN, USE_Z_MAX, USE_Z_MIN, USE_Z2_MAX, USE_Z2_MIN, USE_Z3_MAX, USE_Z3_MIN, USE_Z_MIN_PROBE)
+#if ENDSTOPS_INTERRUPTS_COUNT > 10
+  #error "too many endstop interrupts! HC32F46x only supports 10 endstop interrupts."
+#endif
+#if ENDSTOPS_INTERRUPTS_COUNT == 0
+  #error "no endstop interrupts are enabled! If you wish to ignore this error, please comment out this line."
 #endif
diff --git a/Marlin/src/HAL/HC32F46x/timers.h b/Marlin/src/HAL/HC32F46x/timers.h
index ce7850f7e7f5..0c9018ebd071 100644
--- a/Marlin/src/HAL/HC32F46x/timers.h
+++ b/Marlin/src/HAL/HC32F46x/timers.h
@@ -49,7 +49,10 @@ typedef uint16_t hal_timer_t;
 #define TEMP_TIMER_PRESCALE 16ul
 
 #define STEPPER_TIMER_PRESCALE 16ul
-#define STEPPER_TIMER_RATE (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
+
+//TODO: derive this from the timer rate and prescale
+// since F_CPU is not constant, it cannot be used here... 
+#define STEPPER_TIMER_RATE 2000000 // (HAL_TIMER_RATE / STEPPER_TIMER_PRESCALE)
 #define STEPPER_TIMER_TICKS_PER_US ((STEPPER_TIMER_RATE) / 1000000)
 
 #define PULSE_TIMER_PRESCALE STEPPER_TIMER_PRESCALE
diff --git a/Marlin/src/HAL/platforms.h b/Marlin/src/HAL/platforms.h
index b9a15193da45..e36d356a20f8 100644
--- a/Marlin/src/HAL/platforms.h
+++ b/Marlin/src/HAL/platforms.h
@@ -36,7 +36,7 @@
 #elif defined(TARGET_LPC1768)
   #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/LPC1768/NAME)
 #elif defined(TARGET_HC32F46x)
-  #define HAL_PATH(PATH, NAME) XSTR(PATH/HC32F46x/NAME)
+  #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/HC32F46x/NAME)
 #elif defined(__STM32F1__) || defined(TARGET_STM32F1)
   #define HAL_PATH(PATH, NAME) XSTR(PATH/HAL/STM32F1/NAME)
 #elif defined(ARDUINO_ARCH_STM32)
diff --git a/Marlin/src/pins/hc32f46x/pins_Aquila_V101.h b/Marlin/src/pins/hc32f46x/pins_Aquila_V101.h
index ff5bf0ecbec6..1dd39983eb38 100644
--- a/Marlin/src/pins/hc32f46x/pins_Aquila_V101.h
+++ b/Marlin/src/pins/hc32f46x/pins_Aquila_V101.h
@@ -161,7 +161,7 @@
 //
 #define SD_DETECT_PIN PA10
 #define SDCARD_CONNECTION ONBOARD
-#define SDIO_SUPPORT
+#define ONBOARD_SDIO
 #define NO_SD_HOST_DRIVE // This board's SD card is only seen by the printer
 
 //
diff --git a/ini/hc32.ini b/ini/hc32.ini
index c84af39cc685..b51ba9519ed6 100644
--- a/ini/hc32.ini
+++ b/ini/hc32.ini
@@ -33,6 +33,7 @@ build_flags =
 	-D TARGET_HC32F46x 
 	-D REDIRECT_PRINTF_TO_SERIAL 
 	-D __DEBUG
+	-D PLATFORM_M997_SUPPORT
 build_src_filter = ${common.default_src_filter} +<src/HAL/HC32F46x> +<src/HAL/shared/backtrace>
 
 # Drivers and Middleware required by the HC32F46x HAL