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dzzxzz@gmail.com 7fddcb0e35 add serial device driver framework
and implement the example in MB9BF506R branch

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2145 bbd45198-f89e-11dd-88c7-29a3b14d5316
2012-06-01 06:52:34 +00:00
..
2012-06-01 06:52:34 +00:00