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Compiler/TMS320F28035: Is DELAY_US reentrant ?

Patel
Intellectual 330 points
Part Number: TMS320F28035

Tool/software: TI C/C++ Compiler

Is DELAY_US reentrant?  

I am using the same function in main and in ISR.

  • 0
    TI__Genius 9930 points

    hi ,

    No its not reentrant.

    #define DEVICE_DELAY_US(x) SysCtl_delay(((((long double)(x)) / (1000000.0L / \
    (long double)DEVICE_SYSCLK_FREQ)) - 9.0L) / 5.0L)

    The SysCtl_delay uses ACC for implementation . So if an interrupt is called changing the value of ACC it cant be resumed since the value would be lost.

    Regards.