Shulou(Shulou.com)06/01 Report--

The editor will share with you how vxworks interrupts the nesting times. I hope you will get something after reading this article. Let's discuss it together.

How to tell whether a program is executed in a task or in an interrupt? The variable intCnt is usually used to count the number of interruption nesting. However, when it comes to SMP, each CPU may handle interrupts, which cannot be represented by global variables, so you need to use the function intCount (). For the sake of code compatibility, we suggest using intCount () in UP.

Try to write an example in X86

Run this example

It turned out that the kernel forcibly increased the interrupt count to the watchdog.

After reading this article, I believe you have a certain understanding of "how to break the nesting times of vxworks". If you want to know more about it, you are welcome to follow the industry information channel. Thank you for reading!

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