diff --git a/firmware/config/stm32f4ems/efifeatures.h b/firmware/config/stm32f4ems/efifeatures.h
index 3209a687aa..262d8e0299 100644
--- a/firmware/config/stm32f4ems/efifeatures.h
+++ b/firmware/config/stm32f4ems/efifeatures.h
@@ -213,6 +213,7 @@
 // todo: most of this should become configurable
 
 // todo: switch to continues ADC conversion for slow ADC?
+// https://github.com/rusefi/rusefi/issues/630
 #define EFI_INTERNAL_SLOW_ADC_PWM	&PWMD8
 // todo: switch to continues ADC conversion for fast ADC?
 #define EFI_INTERNAL_FAST_ADC_PWM	&PWMD4
diff --git a/firmware/config/stm32f4ems/mcuconf.h b/firmware/config/stm32f4ems/mcuconf.h
index 0e099e1524..9f141afb9a 100644
--- a/firmware/config/stm32f4ems/mcuconf.h
+++ b/firmware/config/stm32f4ems/mcuconf.h
@@ -258,8 +258,11 @@
 #define STM32_PWM_USE_TIM1                  FALSE
 #define STM32_PWM_USE_TIM2                  FALSE
 #define STM32_PWM_USE_TIM3                  FALSE
+// maybe even swithc this one to software timer?
+// todo: https://github.com/rusefi/rusefi/issues/630 ?
 #define STM32_PWM_USE_TIM4                  TRUE
 #define STM32_PWM_USE_TIM5                  FALSE
+// todo: https://github.com/rusefi/rusefi/issues/630 ?
 #define STM32_PWM_USE_TIM8                  TRUE
 #define STM32_PWM_USE_TIM9                  FALSE
 #define STM32_PWM_TIM1_IRQ_PRIORITY         7
diff --git a/firmware/hw_layer/digital_input_hw.cpp b/firmware/hw_layer/digital_input_hw.cpp
index d03ef454ef..4dccc9781b 100644
--- a/firmware/hw_layer/digital_input_hw.cpp
+++ b/firmware/hw_layer/digital_input_hw.cpp
@@ -126,6 +126,8 @@ icuchannel_t getInputCaptureChannel(brain_pin_e hwPin) {
  * ChibiOS limitation is that only channels #1 and #2 could be used for input capture
  *
  * TODO: migrate slow ADC to software timer so that TIM8 is also available for input capture
+ * todo: https://github.com/rusefi/rusefi/issues/630 ?
+ *
  */
 ICUDriver * getInputCaptureDriver(const char *msg, brain_pin_e hwPin) {
 	if (hwPin == GPIO_UNASSIGNED || hwPin == GPIO_INVALID) {
diff --git a/java_tools/enum_to_string/.gitignore b/java_tools/enum_to_string/.gitignore
new file mode 100644
index 0000000000..89f9ac04aa
--- /dev/null
+++ b/java_tools/enum_to_string/.gitignore
@@ -0,0 +1 @@
+out/