Support:

1. Task manage.
2. Schedule method. Support FIFO/timeslice/priotity method.
3. IPC. Support semaphore/mutex/message queue.
4. Support tiny file system.
5. System exception handle.
6. Support block memory manage.
7. Support interrupt manage.
8. Support the task number of a word size.
9. Support shell.
10. Support uip.
11. Port to flatform: s3c2440/openrisc/linux
12. Support device manage.
13. Support software time.
14 0 delay interrupt time
15 add fsm/hsm as low priority task framework
14 delay interrupt time

WIP:

1. Memory overflow check.
5. Port to amp/smp.
6. JS engin.
7. Port to posix interface.
8. Support misra/osek.
9. Seprate user and kernel space.
10. Dynamic load application.
11. High precise timer.
12. Add some wifi/bluetooth/usb stack.
13. Support mpu.
14. Trace every callback function.
15. Low power handle.
16. Port to mainstream CPUs.
17. Read system config to user.