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Flash emulation problem when using debugger

ionutF
Associate III
Posted on November 25, 2016 at 16:20

1.My code behaves in a strange way when using debugger. (CooCox IDE)(STM32F030C8)

If I step to each function , after stepping EE_Init() function the code seems to be stucked in a loop ;in disassembly view it executes the same instruction without going to the next one (ldr r3, [pc, #116]). Now if I put a breakpoint at another line after theEE_Init() function and run the code from the beginning up to that breakpoint without stepping through each function , the code reaches that breakpoint and it seems to run normally. It is strange for me because I have used Flash EEprom emulation before and I did not came across this. The code is more complex but due to strange behaviour I eliminated from it until I found what seems to be error source.


int
main(
void
)

{


__enable_irq();

u8 i=0;

adc_config();


FLASH_Unlock(); 
//Unlock the Flash Program Erase controller

EE_Init();

//FLASH_Lock();

#ifdef DEBUG072

DAC_Setup();

#endif



intern_ee_set_u16(UminThresholdAddress,16);

u16 temp=0;

temp=intern_ee_get_u16(UminThresholdAddress);


intern_ee_set_u16(UminThresholdAddress,4);



temp=intern_ee_get_u16(UminThresholdAddress);

temp=0;

while
(1)

{

if
(SW1Status==DISABLE)

{

SW2Status=3;

}

temp=intern_ee_get_u16(UminThresholdAddress);

if
(temp==4)

{


SW3Status=ENABLE;

}

else

{

SW3Status=DISABLE;

}

temp=0;

}

}

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