🐛 STM32 ADC Resolution = 12 bit (or ADC_RESOLUTION) (#22789)

Marlin/src/HAL/STM32/HAL.h

@@ -183,8 +183,13 @@ static inline int freeMemory() {
 
 #define HAL_ANALOG_SELECT(pin) pinMode(pin, INPUT)
 
+#ifdef ADC_RESOLUTION
+  #define HAL_ADC_RESOLUTION ADC_RESOLUTION
+#else
+  #define HAL_ADC_RESOLUTION 12
+#endif
+
 #define HAL_ADC_VREF         3.3
-#define HAL_ADC_RESOLUTION  ADC_RESOLUTION // 12
 #define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
 #define HAL_READ_ADC()      HAL_adc_result
 #define HAL_ADC_READY()     true

Marlin/src/HAL/STM32F1/HAL.h

@@ -237,8 +237,13 @@ static inline int freeMemory() {
 
 void HAL_adc_init();
 
+#ifdef ADC_RESOLUTION
+  #define HAL_ADC_RESOLUTION ADC_RESOLUTION
+#else
+  #define HAL_ADC_RESOLUTION 12
+#endif
+
 #define HAL_ADC_VREF         3.3
-#define HAL_ADC_RESOLUTION  10
 #define HAL_START_ADC(pin)  HAL_adc_start_conversion(pin)
 #define HAL_READ_ADC()      HAL_adc_result
 #define HAL_ADC_READY()     true

ini/stm32-common.ini

@@ -16,7 +16,6 @@ build_flags      = ${common.build_flags}
                    -std=gnu++14 -DHAL_STM32
                    -DUSBCON -DUSBD_USE_CDC
                    -DTIM_IRQ_PRIO=13
-                   -DADC_RESOLUTION=12
 build_unflags    = -std=gnu++11
 src_filter       = ${common.default_src_filter} +<src/HAL/STM32> +<src/HAL/shared/backtrace>
 extra_scripts    = ${common.extra_scripts}