CI858K01 3BSE018135R1 | ABB | Optimizer settings module

Description

CI858K01 3BSE018135R1 | ABB | Optimizer settings module

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If the volatile CI858K01  of C is not used to mark certain types of variables, it may lead to many unexpected behaviors in systems where the optimizer of the compiler is set to low-level or disabled to function properly. The variable declaration during the volatile preliminaries is intended to prevent optimized reading and variable writing usage.
For example, if you write the code shown in Listing 1, the optimizer may try to make the program faster and smaller by eliminating the first line, thereby harming the patient’s health. However, if g-alarm is declared volatile, this optimization will not be allowed.

Best CI858K01  : Use volatile keywords to declare each: global variables accessed by ISR and any other part of the code, global variables accessed by two or more RTOS tasks (even if competition conditions in these accesses have been blocked), pointers to memory mapped peripheral registers (or a set or set of registers), and delay loop counters.
Please note that in addition to ensuring that CI858K01  read and write operations target the given variable, using volatile also restricts the compiler by adding other “sequence points”. All volatile accesses other than reading or writing volatile variables must be executed before that access.

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