diff --git a/nrf5/boards/feather52/mpconfigboard_s132.mk b/nrf5/boards/feather52/mpconfigboard_s132.mk
index 17dda95899..ce8dcde30d 100644
--- a/nrf5/boards/feather52/mpconfigboard_s132.mk
+++ b/nrf5/boards/feather52/mpconfigboard_s132.mk
@@ -6,3 +6,20 @@ SOFTDEV_VERSION = 2.0.1
 LD_FILE = boards/feather52/custom_nrf52832_dfu_app.ld
 
 NRF_DEFINES += -DNRF52832_XXAA
+
+
+check_defined = \
+    $(strip $(foreach 1,$1, \
+    $(call __check_defined,$1,$(strip $(value 2)))))
+__check_defined = \
+    $(if $(value $1),, \
+    $(error Undefined make flag: $1$(if $2, ($2))))
+
+.PHONY: dfu-gen dfu-flash
+
+dfu-gen:
+	nrfutil dfu genpkg --dev-type 0x0052 --application $(BUILD)/$(OUTPUT_FILENAME).hex $(BUILD)/dfu-package.zip
+
+dfu-flash:
+	@:$(call check_defined, SERIAL, example: SERIAL=/dev/ttyUSB0)
+	sudo nrfutil dfu serial --package $(BUILD)/dfu-package.zip -p $(SERIAL)