driver_lib

method 1

Generate libdriver.a in SDK/lib, in driver_lib folder, run:

./make_lib.sh driver

STEP 1:

Copy driver folder to your project sub-folder, such as app folder. Unused drivers can be removed in your project.
STEP 2:

Modify Makefile in app folder.

1). Search SUBDIRS, add driver as subdir, such as:
```
  SUBDIRS = user driver
```
2). Search COMPONENTS_eagle.app.v6, add libdriver.a, such as:
```
  COMPONENTS_eagle.app.v6 = user/libuser.a driver/libdriver.a
```