Update README.md

README.md

@@ -1,3 +1,49 @@
-# DEPMAKER
+DEPMAKER
+========
 
 A GNU MAKE Helper for building binaries with automatic dependency handling.
+
+ 
+
+DEPMAKER uses a simple directory structure for finding sources, every module may
+contain the following directories and/or files:
+
+| ./include   | Include files here, Directory will automatically be added to Compilers Search Path              |
+|-------------|-------------------------------------------------------------------------------------------------|
+| ./src       | Source files here                                                                               |
+| Makefile    | Simple makefile (optional), may use DEPENDS=… to inform about other modules, needed to compile  |
+| global.make | Global flags for Compilers can go here                                                          |
+
+ 
+
+DEPMAKER will first build a list of needed dependencies by walking over the
+DEPEND=… vars to find all needed modules and setup the correct compiler flags
+and prefixes (e.g. COMPILER_PREFIX=„avr-„).
+
+Dependency modules are built first and static libraries are composed, which will
+then be linked to the start module.
+
+ 
+
+Usage
+-----
+
+-   Place in project subdirectory, e.g. depmaker
+
+-   Create Makefile in your Project directory like this example:
+
+ 
+
+`CFLAGS+=-DF_CPU=16000000`
+
+`DEPENDS=module1 ../some_extern_code lib/libmoda lib/libmodc`
+
+ 
+
+`%:`
+
+`$(MAKE) -f depmaker/Makefile $@`
+
+ 
+
+