troubles debugging C-code

Hi all,

In combination with my STR710 microcontroller I am using:

IDE-Version:
µVision3 V3.23

With the tools:

Tool Version Numbers:
Toolchain Path: C:\Keil\ARM\BIN\
C Compiler: CA.Exe V2.42
Assembler: AA.Exe V2.40b
Linker/Locator: LA.Exe V2.42
Librarian: LIBA.Exe V4.26
Hex Converter: OHA.Exe V2.10
CPU DLL: SARM.DLL V1.29
Dialog DLL: DARMST.DLL V1.03
Target DLL: BIN\UL2ARM.DLL V1.14a
Dialog DLL: TARMST.DLL V1.03

I have troubles debugging C-code.
If I use global or local variables and I initiate these global/local variables at the begin of a program or function I can not set breakpoints at these text lines in debugging mode. And during debugging these textlines are ignored/not executed.

In the example below in debugging mode uVision does not set the grey blocks before text lines 0952, 0953 and 0955. And it does set a grey block at line 0954 and all the other code.

void ADC12_IRQHandler(void) __irq
{

/*line 0952:*/ short ADCsample_MAX_temp = 0;
/*line 0953:*/ short ADCsample_MIN_temp = 0;
/*line0954:*/ short ADCsample_MAV_Filter = 0;
/*line 0955:*/ int i;

ADCsample_MAX_temp = ADCsample_MAX_temp + (ADCsample+30); //zet bandfilter op +30 t.o.v laatste sample
ADCsample_MIN_temp = ADCsample_MIN_temp - (ADCsample-60); //zet bandfilter op -30 t.o.v laatste sample

for(i=0; i>=8; i++)
{

if((ADC_DATA0 & 0x8000)!=0)/************************Roer staat links*******************************/
{
ADCsample = ADC_DATA0;
ADCsample = ADCsample >> 5;
ADCsample = ~ADCsample;
ADCsample &= 0x000007FF;
ADCsample |= 0x0400;
}

if((ADC_DATA0 & 0x8000)==0)/*************************Roer staat rechts*****************************/
{
ADCsample = ADC_DATA0; //
ADCsample = ADCsample >> 5; //5 LSB weg shiften, resultaat is 11 bits nauwkeurigheid
ADCsample = ~ADCsample;
ADCsample &= 0x000007FF;
ADCsample &= 0x3FF;
}

ADCsample_MAV_Filter += ADCsample;
}

ADCsample_MAV_Filter = ADCsample_MAV_Filter >> 3;

if((ADCsample_MAV_Filter >> ADCsample_MAX_temp) || (ADCsample_MAV_Filter << ADCsample_MIN_temp))
{
//storing, ADC waarde te hoog of te laag
}
else
{
ADCsample_MAV_Filter = ADCsample;
}

ADC12->CSR &= ~ADC12_DA0; /*clear sample ready flag*/
EIC->IPR = 1 << ADC_IRQChannel;

}


Does someone have an explanation for this?

Regards,

Erik