diff --git a/Marlin/src/HAL/HAL_STM32F1/HAL.cpp b/Marlin/src/HAL/HAL_STM32F1/HAL.cpp
index f3d016834..fd0c4a27a 100644
--- a/Marlin/src/HAL/HAL_STM32F1/HAL.cpp
+++ b/Marlin/src/HAL/HAL_STM32F1/HAL.cpp
@@ -369,4 +369,6 @@ void analogWrite(pin_t pin, int pwm_val8) {
     analogWrite(uint8_t(pin), pwm_val8);
 }
 
+void flashFirmware(int16_t value) { nvic_sys_reset(); }
+
 #endif // __STM32F1__
diff --git a/Marlin/src/HAL/HAL_STM32F1/HAL.h b/Marlin/src/HAL/HAL_STM32F1/HAL.h
index c096fb083..d36c53aed 100644
--- a/Marlin/src/HAL/HAL_STM32F1/HAL.h
+++ b/Marlin/src/HAL/HAL_STM32F1/HAL.h
@@ -256,3 +256,6 @@ void analogWrite(pin_t pin, int pwm_val8); // PWM only! mul by 257 in maple!?
 
 #define JTAG_DISABLE() afio_cfg_debug_ports(AFIO_DEBUG_SW_ONLY)
 #define JTAGSWD_DISABLE() afio_cfg_debug_ports(AFIO_DEBUG_NONE)
+
+#define PLATFORM_M997_SUPPORT
+void flashFirmware(int16_t value);