commit - b54c50eebbe1e0ae36993107d6685e1d54c976bb
commit + 95f4961875530115c45cd9ce496de1fb179d8cb0
blob - 567609b1234a9b8806c5a05da6c866e480aa148d
blob + b34069220d755e0fbb322f6cf860bf0d65da7196
--- .gitignore
+++ .gitignore
@@ -1 +1,2 @@
 build/
+.build/
blob - e37535900c8c4e1ea4d11f5fbd8f8e76c5d7d3bb
blob + 169da40068e936b0db07ce683065e61b1bf8636a
--- README.md
+++ README.md
@@ -12,11 +12,33 @@ The only changes made here are to the `prj.conf` to al
 
 ## Compiling
 
+
 Install the [Zephyr
 toolchain](https://docs.zephyrproject.org/latest/develop/getting_started/index.html).
 
-After compiling, the output files will be in `build/zephyr/` in various formats.
+After compiling, the output files will be in `$(OUTDIR)/zephyr/` in various
+formats.
 
+### Using the Makefile
+
+To compile the image using the Makefile use
+
+```sh
+make
+```
+
+Flashing is done with
+
+```sh
+make flash FLASH_PORT=/path/to/device
+```
+
+where `/path/to/device` is the path the device that should be flashed can be
+accessed from, e.g. `/dev/ttyACM2`.
+
+The variable `FLASH_PORT` can also be set in `config.mk`. If set it doesn't need
+to be given as a parameter anymore.
+
 ### Using CMake/Ninja
 
 Simply invoke the following commands:
blob - /dev/null
blob + 40f4e01b06803011196107429d86aaa3d9bbe952 (mode 644)
--- /dev/null
+++ Makefile
@@ -0,0 +1,30 @@
+.POSIX:
+
+include config.mk
+
+all: generate-zip
+
+build:
+	cmake -B$(OUTDIR) -GNinja -DBOARD=nrf52840dongle_nrf52840 .
+	ninja -C$(OUTDIR)
+
+generate-zip: build
+	nrfutil pkg generate \
+		--hw-version 52 \
+		--sd-req=0x00 \
+		--application $(OUTDIR)/zephyr/zephyr.hex \
+		--application-version 1 \
+		$(OUTDIR)/hci_usb.zip
+
+flash: generate-zip
+ifndef FLASH_PORT
+	$(error Variable "FLASH_PORT" has to be set)
+endif
+	nrfutil dfu usb-serial \
+		--package $(OUTDIR)/hci_usb.zip \
+		-p $(FLASH_PORT)
+
+clean:
+	@rm -rf $(OUTDIR)
+
+.PHONY: all build generate-zip flash clean
blob - /dev/null
blob + 11e5753f7b259079e0b67623f0cf12017e7d84df (mode 644)
--- /dev/null
+++ config.mk
@@ -0,0 +1,3 @@
+OUTDIR=.build
+# the port of the device that should be flashed goes here
+#FLASH_PORT=/dev/ttyACM2