my english document for threadx

threadX is a real-time OS.it is featured with small code scale,high reliability and easy to use.

In last article, I have mentioned freeRtos which is also a real time os. then what is the difference between  threadX and freeRTOS?

1.the system status

threadX has five system status:

1).execution : when a thread is in execution status indicates it occupies the CPU while only one thread can occupy cpu at one time.

2).suspend:  when a thread is suspend .it means the thread will never occupied CPU again until it get the source it wait for or another thread open it.

3).ready : when a thread is ready .that means the thread is located in a waiting queue where the CPU will choose one to execute after the CPU finished the current execution thread.

4).terminal:when a thread is terminaled by itself or other thread.it will never be execute untill the thread is delete then reinit .

5).complete: a thread is only complete by itself and has the same condition to execute with terminal.

2.the communicaiton between threads

1)semphore:which can function as a flag whatever the value is  to triger a event handler or a protection mechinism to protect system source. 

2)event flags:

3)queue:it can transfer spefic  message from one thread to another. we care most what the message is.  

4)mutex:it is also