cleanup cmake project to move build instructions to toplevel

CMakeLists.txt

@@ -0,0 +1,14 @@
+cmake_minimum_required(VERSION 3.0.0)
+
+# configure target cpu
+set(AVR_MCU attiny84)
+include(cmake/avr-toolchain.cmake)
+
+# create project
+project(slider-firmware C)
+
+# add protocol definition
+add_subdirectory(protocol)
+
+# add the firmware target
+add_subdirectory(firmware)

Readme.md

@@ -1 +1,3 @@
-All about the User Interface resides here 
+This repostitory is complementary to a project log entry on breadboarder.de about a mixing pult.
+
+The Schematic for the Board design presented here can be found in `doc/schematic.pdf`. 

firmware/CMakeLists.txt

@@ -1,11 +1,4 @@
 cmake_minimum_required(VERSION 3.0.0)
 
-set(AVR_MCU attiny84)
-include(${CMAKE_CURRENT_SOURCE_DIR}/../avr-toolchain.cmake)
-
-project(slider_firmware C)
-
-add_subdirectory(SliderCommunication)
-
-add_avr_executable(slider_firmware led.c main.c adc.c button.c comm.c)
-target_link_libraries(slider_firmware DSPLAB_SliderCommunication)
+add_avr_executable(slider-firmware led.c main.c adc.c button.c comm.c)
+target_link_libraries(slider-firmware slider-protocol)

protocol/CMakeLists.txt

@@ -0,0 +1,13 @@
+cmake_minimum_required(VERSION 3.0.0)
+
+project(slider-protocol C)
+
+add_library(slider-protocol INTERFACE)
+
+# add_sources(slider-protocol
+# PUBLIC
+#     communication.h
+#     interface.h
+# )
+
+target_include_directories(slider-protocol INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})