What a great god can help small white answer the single chip microcomputer-CodePudding

Why high priority interrupt low priority after the low priority cannot continue without the program but directly jump back to the main program?

CodePudding user response:

Note the difference between the local and global variables, you interrupt the I use is global

CodePudding user response:

reference 1st floor dceacho response:

pay attention to the difference between local and global variables, you interrupt the I use is a global

What is the difference between

CodePudding user response:

The second interrupt changed the value of the I, when the second interrupt handling after the return to the first, I value has been changed (8) into that no longer satisfy the loop condition, so the first interrupt immediately end exits

CodePudding user response:

reference dceacho reply: 3/f

the second interrupt changed the value of the I, when the second interrupt handling after the return to the first, I value has been changed (8) into that no longer satisfy the loop condition, so the first interrupt immediately end exits

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