Initial commit
initial commit
ADC Hal Implemented

Signed-off-by: fritzprix <innocentevil0914@gmail.com>
STM32F4 SPIHal Draft
Improve USART HAL Performance
 - reentrancy support part is optimized

scheduler bug fix & performance improvement
 - Priority Escalation Mechanism for short run time in critical section
Now, Hard Floating Point feature supported
Update README.md
Update README.md
Hard Float Point support update
- bug#0
  desc: exception stack push / pop -> usagefault
  cause : all the thread should be guaranteed to have hard floating point
          mode. however some thread didn't have floating point context, and
          exc push /pop offset is different from other.
  fix : force every thread into hard float mode
Merge branch 'master' of git@github.com:fritzprix/tachyos.git
- FB155 Bluetooth Driver
- utility function added (c std function which is dependent heap allocation system call)
stream wrapper is added to USART HAL
- add Thread arguement support
- add bluetooth adapter (for good abstraction)
FB155 Driver
 - Add SPP Server Mode
- FB155 Driver
FB155 SPP Server Thread Fix
commit
Update README.md
Signed-off-by: fritzprix <innocentevil0914@gmail.com>
- define kernel interface almost compatible to posix
- define port layer object