@@ 5,8 5,10 @@ ifneq ($(findstring yes, $(CTPC)$(CONVERT_TO_PROTON_C)),)
$(call CATASTROPHIC_ERROR,The `CONVERT_TO_PROTON_C` and `CTPC` options are now deprecated. `CONVERT_TO=proton_c` should be used instead.)
endif
-# TODO: opt in rather than assume everything uses a pro micro
-PIN_COMPATIBLE ?= promicro
+ifneq (,$(filter $(MCU),atmega32u4))
+ # TODO: opt in rather than assume everything uses a pro micro
+ PIN_COMPATIBLE ?= promicro
+endif
# Remove whitespace from any rule.mk provided vars
# - env cannot be overwritten but cannot have whitespace anyway
@@ 16,6 18,10 @@ ifneq ($(CONVERT_TO),)
# stash so we can overwrite env provided vars if needed
ACTIVE_CONVERTER=$(CONVERT_TO)
+ ifeq ($(PIN_COMPATIBLE),)
+ $(call CATASTROPHIC_ERROR,Converting to '$(CONVERT_TO)' not possible!)
+ endif
+
# glob to search each platfrorm and/or check for valid converter
CONVERTER := $(wildcard $(PLATFORM_PATH)/*/converters/$(PIN_COMPATIBLE)_to_$(CONVERT_TO)/)
ifeq ($(CONVERTER),)