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Recent content by Ryan

  1. R

    What is a semaphore mechanism ?

    explain Generally semaphore can schedule multi-tasks processing. It mainly be used in two ways: synchronization and mutex.
  2. R

    What's the best OS for embedded?

    What Os is the best I use vxworks.But I should declare the vxworks OS is not the best OS. Only because the high costs is pretentious. what the best OS is depends on what you need. Security level and the performance, the supporting CPU and development environment , the cost the technical...
  3. R

    How to minimize the interrupt latency of an operating system

    Re: Interrupt Latency That's right. In the case of external trigger source, it's OK. But I wonder if it's a internal timer interrupt without output pin, should we need another way to measure the interrupt latency? And another question, is the interrupt latency same in the same OS for different...
  4. R

    What's the microcontroller and what's the microprocessor ?

    The defference between them is becoming less and less with the electronic integration technology development.
  5. R

    How to creat target server in tornado2(vxworks simulator )

    As default, when you startup simulator without target server, it will warn you and restart with target server automatically. Its no need to creat target server.
  6. R

    How does RTOS fulfill its functions?

    [help] about RTOS In general, what RTOS defferent with OS is that a definite interrupt reponse time and fast tasks switch.
  7. R

    License problem with Vxworks Tornado 2

    problem in vxworks You can try startup tornado registry manually.
  8. R

    two questions about vxWorks

    vxworks rdbuf But I use the same net wire. I don't think it's the problem of wire. A friend ever report the same situation. Is the download speed related to the symbol table?
  9. R

    two questions about vxWorks

    s_objlib_obj_unavailable select I am new in vxWorks development. Environments : Tornado2.2 for ARM, CPU - s3c4510(ARM7TDMI). The two questions listed as follows: 1) The Net download speed is unendurable. It's better if a hub is in use. But in our situation, we debug with other boards without...

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