build motor modul and two headers
update
build motor drive
PD7 can generate a square wave, but the function has not been tested yet
已经能正常产生信号，但是电机报警
波形延迟不够不能带动电机转动，延迟要到毫秒级别
motor finished, but it has not been tested yet
build communication modules
change HSE_VALUE to 8000000
need fix, the callback function can not be called, but raising a hard fault
fix the bug that callback function can not call
do nothing
update office
merge communication brach and build module of communication
merge motor and build module of it
the dispatch function of module has been modified
Merge pull request #1 from ScottZhangLiwen/master

2014.06.16