Merge pull request #41 from aozima/pulls

Pulls
Update README_CN.md
Update README_CN.md
Update README_CN.md
Update README_CN.md
update the wifi example README_CN.md.
update the wifi reset pin configure.
Merge pull request #42 from nongxiaoming/master

update the wifi example README_CN.md.
drivers:fix the uart driver error when uart is close and interrupt.
examples:add rti example project.
drivers:add the usb drivers.
drivers:update the sd card driver when usb device open error.
examples:add 8_usb_device_mstorage example.
Merge pull request #43 from nongxiaoming/master

examples:add rti example project.
examples:update the gcc linker script file.
Merge remote-tracking branch 'remotes/origin/master'
Merge pull request #44 from nongxiaoming/master

examples:update the gcc linker script file.
Add NFTL condition compiling
Update README.md
update board config for RW009.