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RTOS/CC2640: memset() issue for a struct

Allen, Lin
Prodigy 225 points
Part Number: CC2640

Tool/software: TI-RTOS

Hi,

   I am an newbi in CC2640 developer.

   I meet a issue when I use memset() for a struct. When I do step over a memset() in IAR debug mode, the break point will move to the

 __ATTRIBUTES void * memset(void * _D, int _C, size_t _N)

  {

    __aeabi_memset(_D, _N, _C);

    return _D;

  }

inside DLib_Product_string.h

The break point will not be on the next line of memset() when I do step out the memset().

I can use memset() with a int or char variable, but I can use it for struct.

My struct definition is

 

typedef struct

{

    uint8_t ppg;

    uint8_t gsr;

    uint8_t ntc;

    uint8_t prv;

} SecondCounters_t;

My developing environment is

1. IAR V7.4

2. My Application bases on  C:\ti\simplelink\ble_cc26xx_2_01_01_44627

3. I have set the optimizations  as None for my application node - FlashROM

How can I resolve this issue?

Thank you for your kindly help.

Allen

  • 0
    TI__Genius 12815 points
    Hi Allen,

    Are you putting the breakpoint in the main debugging view or in the disassembly window? The disassembly window will give you the most accurate breakpoint placement.
  • 0 in reply to RachelP
    Prodigy 225 points

    Hi Rachel,
    I also try to using the disassembly window to set the break point, but it is the same as debugging view.
    Actually, I set two break points at line 102 and 103. It will stop at line 102 first.

    My code:
    ....
    10 init();
    11 start();
    ......
    100 void init()
    101 {
    102 count.ppg = 0x11;
    103 memset(&counts, 0, sizeof(SecondCounters_t));
    104 sensorPeriod = SENSOR_DEFAULT_PERIOD;
    ......
    130 ....
    }

    Then I do Step over, it will break at the following line 75. After I do two Step overs to exit the memset(), it will break at above line 11.

    The DLib_Product_string.h code:

    73 __ATTRIBUTES void * memset(void * _D, int _C, size_t _N)
    74 {
    75 __aeabi_memset(_D, _N, _C);
    76 return _D;
    77 }


    Meanwhile, I check the sensorPeriod value and it is correct. It seems that the program had ran the line 104. Does it mean I can use memset(), but I will have some problems at debugging? Do you have any idea for this issue?

    Best Regards,
    Allen